PreviewView

Kotlin |Java

public class PreviewView
extends FrameLayout

java.lang.Object
↳	android.view.View
	↳	android.view.ViewGroup
		↳	android.widget.FrameLayout
			↳	androidx.camera.view.PreviewView

Custom View that displays the camera feed for CameraX's Preview use case.

This class manages the Surface lifecycle, as well as the preview aspect ratio and orientation. Internally, it uses either a TextureView or SurfaceView to display the camera feed.

Summary

Nested classes
`enum`	`PreviewView.ImplementationMode` The implementation mode of a `PreviewView`.
`enum`	`PreviewView.ScaleType` Options for scaling the preview vis-à-vis its container `PreviewView`.
`enum`	`PreviewView.StreamState` Definitions for current preview stream state.

Inherited constants

From class android.view.ViewGroup

`int`	`CLIP_TO_PADDING_MASK`
`int`	`FOCUS_AFTER_DESCENDANTS`
`int`	`FOCUS_BEFORE_DESCENDANTS`
`int`	`FOCUS_BLOCK_DESCENDANTS`
`int`	`LAYOUT_MODE_CLIP_BOUNDS`
`int`	`LAYOUT_MODE_OPTICAL_BOUNDS`
`int`	`PERSISTENT_ALL_CACHES`
`int`	`PERSISTENT_ANIMATION_CACHE`
`int`	`PERSISTENT_NO_CACHE`
`int`	`PERSISTENT_SCROLLING_CACHE`

From class android.view.View

`int`	`ACCESSIBILITY_LIVE_REGION_ASSERTIVE`
`int`	`ACCESSIBILITY_LIVE_REGION_NONE`
`int`	`ACCESSIBILITY_LIVE_REGION_POLITE`
`int`	`AUTOFILL_FLAG_INCLUDE_NOT_IMPORTANT_VIEWS`
`String`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_DATE`
`String`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_DAY`
`String`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_MONTH`
`String`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_YEAR`
`String`	`AUTOFILL_HINT_CREDIT_CARD_NUMBER`
`String`	`AUTOFILL_HINT_CREDIT_CARD_SECURITY_CODE`
`String`	`AUTOFILL_HINT_EMAIL_ADDRESS`
`String`	`AUTOFILL_HINT_NAME`
`String`	`AUTOFILL_HINT_PASSWORD`
`String`	`AUTOFILL_HINT_PHONE`
`String`	`AUTOFILL_HINT_POSTAL_ADDRESS`
`String`	`AUTOFILL_HINT_POSTAL_CODE`
`String`	`AUTOFILL_HINT_USERNAME`
`int`	`AUTOFILL_TYPE_DATE`
`int`	`AUTOFILL_TYPE_LIST`
`int`	`AUTOFILL_TYPE_NONE`
`int`	`AUTOFILL_TYPE_TEXT`
`int`	`AUTOFILL_TYPE_TOGGLE`
`int`	`DRAG_FLAG_GLOBAL`
`int`	`DRAG_FLAG_GLOBAL_PERSISTABLE_URI_PERMISSION`
`int`	`DRAG_FLAG_GLOBAL_PREFIX_URI_PERMISSION`
`int`	`DRAG_FLAG_GLOBAL_URI_READ`
`int`	`DRAG_FLAG_GLOBAL_URI_WRITE`
`int`	`DRAG_FLAG_OPAQUE`
`int`	`DRAWING_CACHE_QUALITY_AUTO`
`int`	`DRAWING_CACHE_QUALITY_HIGH`
`int`	`DRAWING_CACHE_QUALITY_LOW`
`int`	`FIND_VIEWS_WITH_CONTENT_DESCRIPTION`
`int`	`FIND_VIEWS_WITH_TEXT`
`int`	`FOCUSABLE`
`int`	`FOCUSABLES_ALL`
`int`	`FOCUSABLES_TOUCH_MODE`
`int`	`FOCUSABLE_AUTO`
`int`	`FOCUS_BACKWARD`
`int`	`FOCUS_DOWN`
`int`	`FOCUS_FORWARD`
`int`	`FOCUS_LEFT`
`int`	`FOCUS_RIGHT`
`int`	`FOCUS_UP`
`int`	`GONE`
`int`	`HAPTIC_FEEDBACK_ENABLED`
`int`	`IMPORTANT_FOR_ACCESSIBILITY_AUTO`
`int`	`IMPORTANT_FOR_ACCESSIBILITY_NO`
`int`	`IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS`
`int`	`IMPORTANT_FOR_ACCESSIBILITY_YES`
`int`	`IMPORTANT_FOR_AUTOFILL_AUTO`
`int`	`IMPORTANT_FOR_AUTOFILL_NO`
`int`	`IMPORTANT_FOR_AUTOFILL_NO_EXCLUDE_DESCENDANTS`
`int`	`IMPORTANT_FOR_AUTOFILL_YES`
`int`	`IMPORTANT_FOR_AUTOFILL_YES_EXCLUDE_DESCENDANTS`
`int`	`IMPORTANT_FOR_CONTENT_CAPTURE_AUTO`
`int`	`IMPORTANT_FOR_CONTENT_CAPTURE_NO`
`int`	`IMPORTANT_FOR_CONTENT_CAPTURE_NO_EXCLUDE_DESCENDANTS`
`int`	`IMPORTANT_FOR_CONTENT_CAPTURE_YES`
`int`	`IMPORTANT_FOR_CONTENT_CAPTURE_YES_EXCLUDE_DESCENDANTS`
`int`	`INVISIBLE`
`int`	`KEEP_SCREEN_ON`
`int`	`LAYER_TYPE_HARDWARE`
`int`	`LAYER_TYPE_NONE`
`int`	`LAYER_TYPE_SOFTWARE`
`int`	`LAYOUT_DIRECTION_INHERIT`
`int`	`LAYOUT_DIRECTION_LOCALE`
`int`	`LAYOUT_DIRECTION_LTR`
`int`	`LAYOUT_DIRECTION_RTL`
`int`	`MEASURED_HEIGHT_STATE_SHIFT`
`int`	`MEASURED_SIZE_MASK`
`int`	`MEASURED_STATE_MASK`
`int`	`MEASURED_STATE_TOO_SMALL`
`int`	`NOT_FOCUSABLE`
`int`	`NO_ID`
`int`	`OVER_SCROLL_ALWAYS`
`int`	`OVER_SCROLL_IF_CONTENT_SCROLLS`
`int`	`OVER_SCROLL_NEVER`
`int`	`SCREEN_STATE_OFF`
`int`	`SCREEN_STATE_ON`
`int`	`SCROLLBARS_INSIDE_INSET`
`int`	`SCROLLBARS_INSIDE_OVERLAY`
`int`	`SCROLLBARS_OUTSIDE_INSET`
`int`	`SCROLLBARS_OUTSIDE_OVERLAY`
`int`	`SCROLLBAR_POSITION_DEFAULT`
`int`	`SCROLLBAR_POSITION_LEFT`
`int`	`SCROLLBAR_POSITION_RIGHT`
`int`	`SCROLL_AXIS_HORIZONTAL`
`int`	`SCROLL_AXIS_NONE`
`int`	`SCROLL_AXIS_VERTICAL`
`int`	`SCROLL_INDICATOR_BOTTOM`
`int`	`SCROLL_INDICATOR_END`
`int`	`SCROLL_INDICATOR_LEFT`
`int`	`SCROLL_INDICATOR_RIGHT`
`int`	`SCROLL_INDICATOR_START`
`int`	`SCROLL_INDICATOR_TOP`
`int`	`SOUND_EFFECTS_ENABLED`
`int`	`STATUS_BAR_HIDDEN`
`int`	`STATUS_BAR_VISIBLE`
`int`	`SYSTEM_UI_FLAG_FULLSCREEN`
`int`	`SYSTEM_UI_FLAG_HIDE_NAVIGATION`
`int`	`SYSTEM_UI_FLAG_IMMERSIVE`
`int`	`SYSTEM_UI_FLAG_IMMERSIVE_STICKY`
`int`	`SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`
`int`	`SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION`
`int`	`SYSTEM_UI_FLAG_LAYOUT_STABLE`
`int`	`SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR`
`int`	`SYSTEM_UI_FLAG_LIGHT_STATUS_BAR`
`int`	`SYSTEM_UI_FLAG_LOW_PROFILE`
`int`	`SYSTEM_UI_FLAG_VISIBLE`
`int`	`SYSTEM_UI_LAYOUT_FLAGS`
`int`	`TEXT_ALIGNMENT_CENTER`
`int`	`TEXT_ALIGNMENT_GRAVITY`
`int`	`TEXT_ALIGNMENT_INHERIT`
`int`	`TEXT_ALIGNMENT_TEXT_END`
`int`	`TEXT_ALIGNMENT_TEXT_START`
`int`	`TEXT_ALIGNMENT_VIEW_END`
`int`	`TEXT_ALIGNMENT_VIEW_START`
`int`	`TEXT_DIRECTION_ANY_RTL`
`int`	`TEXT_DIRECTION_FIRST_STRONG`
`int`	`TEXT_DIRECTION_FIRST_STRONG_LTR`
`int`	`TEXT_DIRECTION_FIRST_STRONG_RTL`
`int`	`TEXT_DIRECTION_INHERIT`
`int`	`TEXT_DIRECTION_LOCALE`
`int`	`TEXT_DIRECTION_LTR`
`int`	`TEXT_DIRECTION_RTL`
`String`	`VIEW_LOG_TAG`
`int`	`VISIBLE`

Inherited fields

From class android.view.View

`public static final Property<View, Float>`	`ALPHA`
`protected static final int[]`	`EMPTY_STATE_SET`
`protected static final int[]`	`ENABLED_FOCUSED_SELECTED_STATE_SET`
`protected static final int[]`	`ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`ENABLED_FOCUSED_STATE_SET`
`protected static final int[]`	`ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`ENABLED_SELECTED_STATE_SET`
`protected static final int[]`	`ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`ENABLED_STATE_SET`
`protected static final int[]`	`ENABLED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`FOCUSED_SELECTED_STATE_SET`
`protected static final int[]`	`FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`FOCUSED_STATE_SET`
`protected static final int[]`	`FOCUSED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`PRESSED_ENABLED_FOCUSED_SELECTED_STATE_SET`
`protected static final int[]`	`PRESSED_ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`PRESSED_ENABLED_FOCUSED_STATE_SET`
`protected static final int[]`	`PRESSED_ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`PRESSED_ENABLED_SELECTED_STATE_SET`
`protected static final int[]`	`PRESSED_ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`PRESSED_ENABLED_STATE_SET`
`protected static final int[]`	`PRESSED_ENABLED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`PRESSED_FOCUSED_SELECTED_STATE_SET`
`protected static final int[]`	`PRESSED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`PRESSED_FOCUSED_STATE_SET`
`protected static final int[]`	`PRESSED_FOCUSED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`PRESSED_SELECTED_STATE_SET`
`protected static final int[]`	`PRESSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`protected static final int[]`	`PRESSED_STATE_SET`
`protected static final int[]`	`PRESSED_WINDOW_FOCUSED_STATE_SET`
`public static final Property<View, Float>`	`ROTATION`
`public static final Property<View, Float>`	`ROTATION_X`
`public static final Property<View, Float>`	`ROTATION_Y`
`public static final Property<View, Float>`	`SCALE_X`
`public static final Property<View, Float>`	`SCALE_Y`
`protected static final int[]`	`SELECTED_STATE_SET`
`protected static final int[]`	`SELECTED_WINDOW_FOCUSED_STATE_SET`
`public static final Property<View, Float>`	`TRANSLATION_X`
`public static final Property<View, Float>`	`TRANSLATION_Y`
`public static final Property<View, Float>`	`TRANSLATION_Z`
`protected static final int[]`	`WINDOW_FOCUSED_STATE_SET`
`public static final Property<View, Float>`	`X`
`public static final Property<View, Float>`	`Y`
`public static final Property<View, Float>`	`Z`

Public constructors
`PreviewView(Context context)`
`PreviewView(Context context, AttributeSet attrs)`
`PreviewView(Context context, AttributeSet attrs, int defStyleAttr)`
`PreviewView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)`

Public methods
`MeteringPointFactory`	`createMeteringPointFactory(CameraSelector cameraSelector)` Creates a `MeteringPointFactory` by a given `CameraSelector` The returned `MeteringPointFactory` is capable of creating `MeteringPoint`s from (x, y) coordinates in the `PreviewView`.
`Preview.SurfaceProvider`	`createSurfaceProvider()` Gets the `Preview.SurfaceProvider` to be used with `Preview.setSurfaceProvider(Executor, Preview.SurfaceProvider)`.
`Bitmap`	`getBitmap()` Returns a `Bitmap` representation of the content displayed on the preview `Surface`, or `null` if the camera preview hasn't started yet.
`int`	`getDeviceRotationForRemoteDisplayMode()` Returns the device rotation value currently applied to the preview.
`PreviewView.ImplementationMode`	`getPreferredImplementationMode()` Returns the preferred `PreviewView.ImplementationMode` for preview.
`LiveData<PreviewView.StreamState>`	`getPreviewStreamState()` Gets the `LiveData` of current preview `PreviewView.StreamState`.
`PreviewView.ScaleType`	`getScaleType()` Returns the `PreviewView.ScaleType` currently applied to the preview.
`void`	`setDeviceRotationForRemoteDisplayMode(int deviceRotation)` Provides the device rotation value to the preview in remote display mode.
`void`	`setPreferredImplementationMode(PreviewView.ImplementationMode preferredMode)` Specifies the preferred `PreviewView.ImplementationMode` to use for preview.
`void`	`setScaleType(PreviewView.ScaleType scaleType)` Applies a `PreviewView.ScaleType` to the preview.

Protected methods
`void`	`onAttachedToWindow()`
`void`	`onDetachedFromWindow()`

Inherited methods

From class


        
          android.widget.FrameLayout

`boolean`	`checkLayoutParams(ViewGroup.LayoutParams arg0)`
`ViewGroup.LayoutParams`	`generateDefaultLayoutParams()`
`ViewGroup.LayoutParams`	`generateLayoutParams(AttributeSet arg0)`
`ViewGroup.LayoutParams`	`generateLayoutParams(ViewGroup.LayoutParams arg0)`
`CharSequence`	`getAccessibilityClassName()`
`boolean`	`getConsiderGoneChildrenWhenMeasuring()`
`boolean`	`getMeasureAllChildren()`
`void`	`onLayout(boolean arg0, int arg1, int arg2, int arg3, int arg4)`
`void`	`onMeasure(int arg0, int arg1)`
`void`	`setForegroundGravity(int arg0)`
`void`	`setMeasureAllChildren(boolean arg0)`
`boolean`	`shouldDelayChildPressedState()`

From class


        
          android.view.ViewGroup

`void`	`addChildrenForAccessibility(ArrayList<View> arg0)`
`void`	`addExtraDataToAccessibilityNodeInfo(AccessibilityNodeInfo arg0, String arg1, Bundle arg2)`
`void`	`addFocusables(ArrayList<View> arg0, int arg1, int arg2)`
`void`	`addKeyboardNavigationClusters(Collection<View> arg0, int arg1)`
`boolean`	`addStatesFromChildren()`
`void`	`addTouchables(ArrayList<View> arg0)`
`void`	`addView(View arg0, ViewGroup.LayoutParams arg1)`
`void`	`addView(View arg0, int arg1)`
`void`	`addView(View arg0, int arg1, ViewGroup.LayoutParams arg2)`
`void`	`addView(View arg0)`
`void`	`addView(View arg0, int arg1, int arg2)`
`boolean`	`addViewInLayout(View arg0, int arg1, ViewGroup.LayoutParams arg2, boolean arg3)`
`boolean`	`addViewInLayout(View arg0, int arg1, ViewGroup.LayoutParams arg2)`
`void`	`attachLayoutAnimationParameters(View arg0, ViewGroup.LayoutParams arg1, int arg2, int arg3)`
`void`	`attachViewToParent(View arg0, int arg1, ViewGroup.LayoutParams arg2)`
`void`	`bringChildToFront(View arg0)`
`boolean`	`canAnimate()`
`boolean`	`checkLayoutParams(ViewGroup.LayoutParams arg0)`
`void`	`childDrawableStateChanged(View arg0)`
`void`	`childHasTransientStateChanged(View arg0, boolean arg1)`
`void`	`cleanupLayoutState(View arg0)`
`void`	`clearChildFocus(View arg0)`
`void`	`clearDisappearingChildren()`
`void`	`clearFocus()`
`void`	`debug(int arg0)`
`void`	`detachAllViewsFromParent()`
`void`	`detachViewFromParent(int arg0)`
`void`	`detachViewFromParent(View arg0)`
`void`	`detachViewsFromParent(int arg0, int arg1)`
`WindowInsets`	`dispatchApplyWindowInsets(WindowInsets arg0)`
`boolean`	`dispatchCapturedPointerEvent(MotionEvent arg0)`
`void`	`dispatchConfigurationChanged(Configuration arg0)`
`void`	`dispatchDisplayHint(int arg0)`
`boolean`	`dispatchDragEvent(DragEvent arg0)`
`void`	`dispatchDraw(Canvas arg0)`
`void`	`dispatchDrawableHotspotChanged(float arg0, float arg1)`
`void`	`dispatchFinishTemporaryDetach()`
`void`	`dispatchFreezeSelfOnly(SparseArray<Parcelable> arg0)`
`boolean`	`dispatchGenericFocusedEvent(MotionEvent arg0)`
`boolean`	`dispatchGenericPointerEvent(MotionEvent arg0)`
`boolean`	`dispatchHoverEvent(MotionEvent arg0)`
`boolean`	`dispatchKeyEvent(KeyEvent arg0)`
`boolean`	`dispatchKeyEventPreIme(KeyEvent arg0)`
`boolean`	`dispatchKeyShortcutEvent(KeyEvent arg0)`
`void`	`dispatchPointerCaptureChanged(boolean arg0)`
`void`	`dispatchProvideAutofillStructure(ViewStructure arg0, int arg1)`
`void`	`dispatchProvideStructure(ViewStructure arg0)`
`void`	`dispatchRestoreInstanceState(SparseArray<Parcelable> arg0)`
`void`	`dispatchSaveInstanceState(SparseArray<Parcelable> arg0)`
`void`	`dispatchSetActivated(boolean arg0)`
`void`	`dispatchSetPressed(boolean arg0)`
`void`	`dispatchSetSelected(boolean arg0)`
`void`	`dispatchStartTemporaryDetach()`
`void`	`dispatchSystemUiVisibilityChanged(int arg0)`
`void`	`dispatchThawSelfOnly(SparseArray<Parcelable> arg0)`
`boolean`	`dispatchTouchEvent(MotionEvent arg0)`
`boolean`	`dispatchTrackballEvent(MotionEvent arg0)`
`boolean`	`dispatchUnhandledMove(View arg0, int arg1)`
`void`	`dispatchVisibilityChanged(View arg0, int arg1)`
`void`	`dispatchWindowFocusChanged(boolean arg0)`
`void`	`dispatchWindowInsetsAnimationEnd(WindowInsetsAnimation arg0)`
`void`	`dispatchWindowInsetsAnimationPrepare(WindowInsetsAnimation arg0)`
`WindowInsets`	`dispatchWindowInsetsAnimationProgress(WindowInsets arg0, List<WindowInsetsAnimation> arg1)`
`WindowInsetsAnimation.Bounds`	`dispatchWindowInsetsAnimationStart(WindowInsetsAnimation arg0, WindowInsetsAnimation.Bounds arg1)`
`void`	`dispatchWindowSystemUiVisiblityChanged(int arg0)`
`void`	`dispatchWindowVisibilityChanged(int arg0)`
`boolean`	`drawChild(Canvas arg0, View arg1, long arg2)`
`void`	`drawableStateChanged()`
`void`	`endViewTransition(View arg0)`
`View`	`findFocus()`
`void`	`findViewsWithText(ArrayList<View> arg0, CharSequence arg1, int arg2)`
`View`	`focusSearch(View arg0, int arg1)`
`void`	`focusableViewAvailable(View arg0)`
`boolean`	`gatherTransparentRegion(Region arg0)`
`ViewGroup.LayoutParams`	`generateDefaultLayoutParams()`
`ViewGroup.LayoutParams`	`generateLayoutParams(AttributeSet arg0)`
`ViewGroup.LayoutParams`	`generateLayoutParams(ViewGroup.LayoutParams arg0)`
`CharSequence`	`getAccessibilityClassName()`
`View`	`getChildAt(int arg0)`
`int`	`getChildCount()`
`int`	`getChildDrawingOrder(int arg0, int arg1)`
`final int`	`getChildDrawingOrder(int arg0)`
`static int`	`getChildMeasureSpec(int arg0, int arg1, int arg2)`
`boolean`	`getChildStaticTransformation(View arg0, Transformation arg1)`
`boolean`	`getChildVisibleRect(View arg0, Rect arg1, Point arg2)`
`boolean`	`getClipChildren()`
`boolean`	`getClipToPadding()`
`int`	`getDescendantFocusability()`
`View`	`getFocusedChild()`
`LayoutAnimationController`	`getLayoutAnimation()`
`Animation.AnimationListener`	`getLayoutAnimationListener()`
`int`	`getLayoutMode()`
`LayoutTransition`	`getLayoutTransition()`
`int`	`getNestedScrollAxes()`
`ViewOverlay`	`getOverlay()`
`int`	`getPersistentDrawingCache()`
`boolean`	`getTouchscreenBlocksFocus()`
`boolean`	`hasFocus()`
`boolean`	`hasTransientState()`
`int`	`indexOfChild(View arg0)`
`final void`	`invalidateChild(View arg0, Rect arg1)`
`ViewParent`	`invalidateChildInParent(int[] arg0, Rect arg1)`
`boolean`	`isAlwaysDrawnWithCacheEnabled()`
`boolean`	`isAnimationCacheEnabled()`
`boolean`	`isChildrenDrawingOrderEnabled()`
`boolean`	`isChildrenDrawnWithCacheEnabled()`
`boolean`	`isLayoutSuppressed()`
`boolean`	`isMotionEventSplittingEnabled()`
`boolean`	`isTransitionGroup()`
`void`	`jumpDrawablesToCurrentState()`
`final void`	`layout(int arg0, int arg1, int arg2, int arg3)`
`void`	`measureChild(View arg0, int arg1, int arg2)`
`void`	`measureChildWithMargins(View arg0, int arg1, int arg2, int arg3, int arg4)`
`void`	`measureChildren(int arg0, int arg1)`
`void`	`notifySubtreeAccessibilityStateChanged(View arg0, View arg1, int arg2)`
`final void`	`offsetDescendantRectToMyCoords(View arg0, Rect arg1)`
`final void`	`offsetRectIntoDescendantCoords(View arg0, Rect arg1)`
`void`	`onAttachedToWindow()`
`int[]`	`onCreateDrawableState(int arg0)`
`void`	`onDescendantInvalidated(View arg0, View arg1)`
`void`	`onDetachedFromWindow()`
`boolean`	`onInterceptHoverEvent(MotionEvent arg0)`
`boolean`	`onInterceptTouchEvent(MotionEvent arg0)`
`abstract void`	`onLayout(boolean arg0, int arg1, int arg2, int arg3, int arg4)`
`boolean`	`onNestedFling(View arg0, float arg1, float arg2, boolean arg3)`
`boolean`	`onNestedPreFling(View arg0, float arg1, float arg2)`
`boolean`	`onNestedPrePerformAccessibilityAction(View arg0, int arg1, Bundle arg2)`
`void`	`onNestedPreScroll(View arg0, int arg1, int arg2, int[] arg3)`
`void`	`onNestedScroll(View arg0, int arg1, int arg2, int arg3, int arg4)`
`void`	`onNestedScrollAccepted(View arg0, View arg1, int arg2)`
`boolean`	`onRequestFocusInDescendants(int arg0, Rect arg1)`
`boolean`	`onRequestSendAccessibilityEvent(View arg0, AccessibilityEvent arg1)`
`PointerIcon`	`onResolvePointerIcon(MotionEvent arg0, int arg1)`
`boolean`	`onStartNestedScroll(View arg0, View arg1, int arg2)`
`void`	`onStopNestedScroll(View arg0)`
`void`	`onViewAdded(View arg0)`
`void`	`onViewRemoved(View arg0)`
`void`	`recomputeViewAttributes(View arg0)`
`void`	`removeAllViews()`
`void`	`removeAllViewsInLayout()`
`void`	`removeDetachedView(View arg0, boolean arg1)`
`void`	`removeView(View arg0)`
`void`	`removeViewAt(int arg0)`
`void`	`removeViewInLayout(View arg0)`
`void`	`removeViews(int arg0, int arg1)`
`void`	`removeViewsInLayout(int arg0, int arg1)`
`void`	`requestChildFocus(View arg0, View arg1)`
`boolean`	`requestChildRectangleOnScreen(View arg0, Rect arg1, boolean arg2)`
`void`	`requestDisallowInterceptTouchEvent(boolean arg0)`
`boolean`	`requestFocus(int arg0, Rect arg1)`
`boolean`	`requestSendAccessibilityEvent(View arg0, AccessibilityEvent arg1)`
`void`	`requestTransparentRegion(View arg0)`
`boolean`	`restoreDefaultFocus()`
`void`	`scheduleLayoutAnimation()`
`void`	`setAddStatesFromChildren(boolean arg0)`
`void`	`setAlwaysDrawnWithCacheEnabled(boolean arg0)`
`void`	`setAnimationCacheEnabled(boolean arg0)`
`void`	`setChildrenDrawingCacheEnabled(boolean arg0)`
`void`	`setChildrenDrawingOrderEnabled(boolean arg0)`
`void`	`setChildrenDrawnWithCacheEnabled(boolean arg0)`
`void`	`setClipChildren(boolean arg0)`
`void`	`setClipToPadding(boolean arg0)`
`void`	`setDescendantFocusability(int arg0)`
`void`	`setLayoutAnimation(LayoutAnimationController arg0)`
`void`	`setLayoutAnimationListener(Animation.AnimationListener arg0)`
`void`	`setLayoutMode(int arg0)`
`void`	`setLayoutTransition(LayoutTransition arg0)`
`void`	`setMotionEventSplittingEnabled(boolean arg0)`
`void`	`setOnHierarchyChangeListener(ViewGroup.OnHierarchyChangeListener arg0)`
`void`	`setPersistentDrawingCache(int arg0)`
`void`	`setStaticTransformationsEnabled(boolean arg0)`
`void`	`setTouchscreenBlocksFocus(boolean arg0)`
`void`	`setTransitionGroup(boolean arg0)`
`void`	`setWindowInsetsAnimationCallback(WindowInsetsAnimation.Callback arg0)`
`boolean`	`shouldDelayChildPressedState()`
`boolean`	`showContextMenuForChild(View arg0, float arg1, float arg2)`
`boolean`	`showContextMenuForChild(View arg0)`
`ActionMode`	`startActionModeForChild(View arg0, ActionMode.Callback arg1, int arg2)`
`ActionMode`	`startActionModeForChild(View arg0, ActionMode.Callback arg1)`
`void`	`startLayoutAnimation()`
`void`	`startViewTransition(View arg0)`
`void`	`suppressLayout(boolean arg0)`
`void`	`updateViewLayout(View arg0, ViewGroup.LayoutParams arg1)`

From class


        
          android.view.View

`void`	`addChildrenForAccessibility(ArrayList<View> arg0)`
`void`	`addExtraDataToAccessibilityNodeInfo(AccessibilityNodeInfo arg0, String arg1, Bundle arg2)`
`void`	`addFocusables(ArrayList<View> arg0, int arg1)`
`void`	`addFocusables(ArrayList<View> arg0, int arg1, int arg2)`
`void`	`addKeyboardNavigationClusters(Collection<View> arg0, int arg1)`
`void`	`addOnAttachStateChangeListener(View.OnAttachStateChangeListener arg0)`
`void`	`addOnLayoutChangeListener(View.OnLayoutChangeListener arg0)`
`void`	`addOnUnhandledKeyEventListener(View.OnUnhandledKeyEventListener arg0)`
`void`	`addTouchables(ArrayList<View> arg0)`
`ViewPropertyAnimator`	`animate()`
`void`	`announceForAccessibility(CharSequence arg0)`
`void`	`autofill(AutofillValue arg0)`
`void`	`autofill(SparseArray<AutofillValue> arg0)`
`boolean`	`awakenScrollBars(int arg0, boolean arg1)`
`boolean`	`awakenScrollBars(int arg0)`
`boolean`	`awakenScrollBars()`
`void`	`bringToFront()`
`void`	`buildDrawingCache(boolean arg0)`
`void`	`buildDrawingCache()`
`void`	`buildLayer()`
`boolean`	`callOnClick()`
`boolean`	`canResolveLayoutDirection()`
`boolean`	`canResolveTextAlignment()`
`boolean`	`canResolveTextDirection()`
`boolean`	`canScrollHorizontally(int arg0)`
`boolean`	`canScrollVertically(int arg0)`
`final void`	`cancelDragAndDrop()`
`void`	`cancelLongPress()`
`final void`	`cancelPendingInputEvents()`
`boolean`	`checkInputConnectionProxy(View arg0)`
`void`	`clearAnimation()`
`void`	`clearFocus()`
`static int`	`combineMeasuredStates(int arg0, int arg1)`
`int`	`computeHorizontalScrollExtent()`
`int`	`computeHorizontalScrollOffset()`
`int`	`computeHorizontalScrollRange()`
`void`	`computeScroll()`
`WindowInsets`	`computeSystemWindowInsets(WindowInsets arg0, Rect arg1)`
`int`	`computeVerticalScrollExtent()`
`int`	`computeVerticalScrollOffset()`
`int`	`computeVerticalScrollRange()`
`AccessibilityNodeInfo`	`createAccessibilityNodeInfo()`
`void`	`createContextMenu(ContextMenu arg0)`
`void`	`destroyDrawingCache()`
`WindowInsets`	`dispatchApplyWindowInsets(WindowInsets arg0)`
`boolean`	`dispatchCapturedPointerEvent(MotionEvent arg0)`
`void`	`dispatchConfigurationChanged(Configuration arg0)`
`void`	`dispatchDisplayHint(int arg0)`
`boolean`	`dispatchDragEvent(DragEvent arg0)`
`void`	`dispatchDraw(Canvas arg0)`
`void`	`dispatchDrawableHotspotChanged(float arg0, float arg1)`
`void`	`dispatchFinishTemporaryDetach()`
`boolean`	`dispatchGenericFocusedEvent(MotionEvent arg0)`
`boolean`	`dispatchGenericMotionEvent(MotionEvent arg0)`
`boolean`	`dispatchGenericPointerEvent(MotionEvent arg0)`
`boolean`	`dispatchHoverEvent(MotionEvent arg0)`
`boolean`	`dispatchKeyEvent(KeyEvent arg0)`
`boolean`	`dispatchKeyEventPreIme(KeyEvent arg0)`
`boolean`	`dispatchKeyShortcutEvent(KeyEvent arg0)`
`boolean`	`dispatchNestedFling(float arg0, float arg1, boolean arg2)`
`boolean`	`dispatchNestedPreFling(float arg0, float arg1)`
`boolean`	`dispatchNestedPrePerformAccessibilityAction(int arg0, Bundle arg1)`
`boolean`	`dispatchNestedPreScroll(int arg0, int arg1, int[] arg2, int[] arg3)`
`boolean`	`dispatchNestedScroll(int arg0, int arg1, int arg2, int arg3, int[] arg4)`
`void`	`dispatchPointerCaptureChanged(boolean arg0)`
`boolean`	`dispatchPopulateAccessibilityEvent(AccessibilityEvent arg0)`
`void`	`dispatchProvideAutofillStructure(ViewStructure arg0, int arg1)`
`void`	`dispatchProvideStructure(ViewStructure arg0)`
`void`	`dispatchRestoreInstanceState(SparseArray<Parcelable> arg0)`
`void`	`dispatchSaveInstanceState(SparseArray<Parcelable> arg0)`
`void`	`dispatchSetActivated(boolean arg0)`
`void`	`dispatchSetPressed(boolean arg0)`
`void`	`dispatchSetSelected(boolean arg0)`
`void`	`dispatchStartTemporaryDetach()`
`void`	`dispatchSystemUiVisibilityChanged(int arg0)`
`boolean`	`dispatchTouchEvent(MotionEvent arg0)`
`boolean`	`dispatchTrackballEvent(MotionEvent arg0)`
`boolean`	`dispatchUnhandledMove(View arg0, int arg1)`
`void`	`dispatchVisibilityChanged(View arg0, int arg1)`
`void`	`dispatchWindowFocusChanged(boolean arg0)`
`void`	`dispatchWindowInsetsAnimationEnd(WindowInsetsAnimation arg0)`
`void`	`dispatchWindowInsetsAnimationPrepare(WindowInsetsAnimation arg0)`
`WindowInsets`	`dispatchWindowInsetsAnimationProgress(WindowInsets arg0, List<WindowInsetsAnimation> arg1)`
`WindowInsetsAnimation.Bounds`	`dispatchWindowInsetsAnimationStart(WindowInsetsAnimation arg0, WindowInsetsAnimation.Bounds arg1)`
`void`	`dispatchWindowSystemUiVisiblityChanged(int arg0)`
`void`	`dispatchWindowVisibilityChanged(int arg0)`
`void`	`draw(Canvas arg0)`
`void`	`drawableHotspotChanged(float arg0, float arg1)`
`void`	`drawableStateChanged()`
`View`	`findFocus()`
`final <T extends View> T`	`findViewById(int arg0)`
`final <T extends View> T`	`findViewWithTag(Object arg0)`
`void`	`findViewsWithText(ArrayList<View> arg0, CharSequence arg1, int arg2)`
`boolean`	`fitSystemWindows(Rect arg0)`
`View`	`focusSearch(int arg0)`
`void`	`forceHasOverlappingRendering(boolean arg0)`
`void`	`forceLayout()`
`static int`	`generateViewId()`
`CharSequence`	`getAccessibilityClassName()`
`View.AccessibilityDelegate`	`getAccessibilityDelegate()`
`int`	`getAccessibilityLiveRegion()`
`AccessibilityNodeProvider`	`getAccessibilityNodeProvider()`
`CharSequence`	`getAccessibilityPaneTitle()`
`int`	`getAccessibilityTraversalAfter()`
`int`	`getAccessibilityTraversalBefore()`
`float`	`getAlpha()`
`Animation`	`getAnimation()`
`Matrix`	`getAnimationMatrix()`
`IBinder`	`getApplicationWindowToken()`
`int[]`	`getAttributeResolutionStack(int arg0)`
`Map<Integer, Integer>`	`getAttributeSourceResourceMap()`
`String[]`	`getAutofillHints()`
`final AutofillId`	`getAutofillId()`
`int`	`getAutofillType()`
`AutofillValue`	`getAutofillValue()`
`Drawable`	`getBackground()`
`BlendMode`	`getBackgroundTintBlendMode()`
`ColorStateList`	`getBackgroundTintList()`
`PorterDuff.Mode`	`getBackgroundTintMode()`
`int`	`getBaseline()`
`final int`	`getBottom()`
`float`	`getBottomFadingEdgeStrength()`
`int`	`getBottomPaddingOffset()`
`float`	`getCameraDistance()`
`boolean`	`getClipBounds(Rect arg0)`
`Rect`	`getClipBounds()`
`final boolean`	`getClipToOutline()`
`final ContentCaptureSession`	`getContentCaptureSession()`
`CharSequence`	`getContentDescription()`
`final Context`	`getContext()`
`ContextMenu.ContextMenuInfo`	`getContextMenuInfo()`
`final boolean`	`getDefaultFocusHighlightEnabled()`
`static int`	`getDefaultSize(int arg0, int arg1)`
`Display`	`getDisplay()`
`final int[]`	`getDrawableState()`
`Bitmap`	`getDrawingCache()`
`Bitmap`	`getDrawingCache(boolean arg0)`
`int`	`getDrawingCacheBackgroundColor()`
`int`	`getDrawingCacheQuality()`
`void`	`getDrawingRect(Rect arg0)`
`long`	`getDrawingTime()`
`float`	`getElevation()`
`int`	`getExplicitStyle()`
`boolean`	`getFilterTouchesWhenObscured()`
`boolean`	`getFitsSystemWindows()`
`int`	`getFocusable()`
`ArrayList<View>`	`getFocusables(int arg0)`
`void`	`getFocusedRect(Rect arg0)`
`Drawable`	`getForeground()`
`int`	`getForegroundGravity()`
`BlendMode`	`getForegroundTintBlendMode()`
`ColorStateList`	`getForegroundTintList()`
`PorterDuff.Mode`	`getForegroundTintMode()`
`final boolean`	`getGlobalVisibleRect(Rect arg0)`
`boolean`	`getGlobalVisibleRect(Rect arg0, Point arg1)`
`Handler`	`getHandler()`
`final boolean`	`getHasOverlappingRendering()`
`final int`	`getHeight()`
`void`	`getHitRect(Rect arg0)`
`int`	`getHorizontalFadingEdgeLength()`
`int`	`getHorizontalScrollbarHeight()`
`Drawable`	`getHorizontalScrollbarThumbDrawable()`
`Drawable`	`getHorizontalScrollbarTrackDrawable()`
`int`	`getId()`
`int`	`getImportantForAccessibility()`
`int`	`getImportantForAutofill()`
`int`	`getImportantForContentCapture()`
`boolean`	`getKeepScreenOn()`
`KeyEvent.DispatcherState`	`getKeyDispatcherState()`
`int`	`getLabelFor()`
`int`	`getLayerType()`
`int`	`getLayoutDirection()`
`ViewGroup.LayoutParams`	`getLayoutParams()`
`final int`	`getLeft()`
`float`	`getLeftFadingEdgeStrength()`
`int`	`getLeftPaddingOffset()`
`final boolean`	`getLocalVisibleRect(Rect arg0)`
`void`	`getLocationInSurface(int[] arg0)`
`void`	`getLocationInWindow(int[] arg0)`
`void`	`getLocationOnScreen(int[] arg0)`
`Matrix`	`getMatrix()`
`final int`	`getMeasuredHeight()`
`final int`	`getMeasuredHeightAndState()`
`final int`	`getMeasuredState()`
`final int`	`getMeasuredWidth()`
`final int`	`getMeasuredWidthAndState()`
`int`	`getMinimumHeight()`
`int`	`getMinimumWidth()`
`int`	`getNextClusterForwardId()`
`int`	`getNextFocusDownId()`
`int`	`getNextFocusForwardId()`
`int`	`getNextFocusLeftId()`
`int`	`getNextFocusRightId()`
`int`	`getNextFocusUpId()`
`View.OnFocusChangeListener`	`getOnFocusChangeListener()`
`int`	`getOutlineAmbientShadowColor()`
`ViewOutlineProvider`	`getOutlineProvider()`
`int`	`getOutlineSpotShadowColor()`
`int`	`getOverScrollMode()`
`ViewOverlay`	`getOverlay()`
`int`	`getPaddingBottom()`
`int`	`getPaddingEnd()`
`int`	`getPaddingLeft()`
`int`	`getPaddingRight()`
`int`	`getPaddingStart()`
`int`	`getPaddingTop()`
`final ViewParent`	`getParent()`
`ViewParent`	`getParentForAccessibility()`
`float`	`getPivotX()`
`float`	`getPivotY()`
`PointerIcon`	`getPointerIcon()`
`Resources`	`getResources()`
`final boolean`	`getRevealOnFocusHint()`
`final int`	`getRight()`
`float`	`getRightFadingEdgeStrength()`
`int`	`getRightPaddingOffset()`
`View`	`getRootView()`
`WindowInsets`	`getRootWindowInsets()`
`float`	`getRotation()`
`float`	`getRotationX()`
`float`	`getRotationY()`
`float`	`getScaleX()`
`float`	`getScaleY()`
`int`	`getScrollBarDefaultDelayBeforeFade()`
`int`	`getScrollBarFadeDuration()`
`int`	`getScrollBarSize()`
`int`	`getScrollBarStyle()`
`int`	`getScrollIndicators()`
`final int`	`getScrollX()`
`final int`	`getScrollY()`
`int`	`getSolidColor()`
`int`	`getSourceLayoutResId()`
`final CharSequence`	`getStateDescription()`
`StateListAnimator`	`getStateListAnimator()`
`int`	`getSuggestedMinimumHeight()`
`int`	`getSuggestedMinimumWidth()`
`List<Rect>`	`getSystemGestureExclusionRects()`
`int`	`getSystemUiVisibility()`
`Object`	`getTag()`
`Object`	`getTag(int arg0)`
`int`	`getTextAlignment()`
`int`	`getTextDirection()`
`CharSequence`	`getTooltipText()`
`final int`	`getTop()`
`float`	`getTopFadingEdgeStrength()`
`int`	`getTopPaddingOffset()`
`TouchDelegate`	`getTouchDelegate()`
`ArrayList<View>`	`getTouchables()`
`float`	`getTransitionAlpha()`
`String`	`getTransitionName()`
`float`	`getTranslationX()`
`float`	`getTranslationY()`
`float`	`getTranslationZ()`
`long`	`getUniqueDrawingId()`
`int`	`getVerticalFadingEdgeLength()`
`int`	`getVerticalScrollbarPosition()`
`Drawable`	`getVerticalScrollbarThumbDrawable()`
`Drawable`	`getVerticalScrollbarTrackDrawable()`
`int`	`getVerticalScrollbarWidth()`
`ViewTreeObserver`	`getViewTreeObserver()`
`int`	`getVisibility()`
`final int`	`getWidth()`
`int`	`getWindowAttachCount()`
`WindowId`	`getWindowId()`
`WindowInsetsController`	`getWindowInsetsController()`
`int`	`getWindowSystemUiVisibility()`
`IBinder`	`getWindowToken()`
`int`	`getWindowVisibility()`
`void`	`getWindowVisibleDisplayFrame(Rect arg0)`
`float`	`getX()`
`float`	`getY()`
`float`	`getZ()`
`boolean`	`hasExplicitFocusable()`
`boolean`	`hasFocus()`
`boolean`	`hasFocusable()`
`boolean`	`hasNestedScrollingParent()`
`boolean`	`hasOnClickListeners()`
`boolean`	`hasOnLongClickListeners()`
`boolean`	`hasOverlappingRendering()`
`boolean`	`hasPointerCapture()`
`boolean`	`hasTransientState()`
`boolean`	`hasWindowFocus()`
`static View`	`inflate(Context arg0, int arg1, ViewGroup arg2)`
`void`	`invalidate()`
`void`	`invalidate(Rect arg0)`
`void`	`invalidate(int arg0, int arg1, int arg2, int arg3)`
`void`	`invalidateDrawable(Drawable arg0)`
`void`	`invalidateOutline()`
`boolean`	`isAccessibilityFocused()`
`boolean`	`isAccessibilityHeading()`
`boolean`	`isActivated()`
`boolean`	`isAttachedToWindow()`
`boolean`	`isClickable()`
`boolean`	`isContextClickable()`
`boolean`	`isDirty()`
`boolean`	`isDrawingCacheEnabled()`
`boolean`	`isDuplicateParentStateEnabled()`
`boolean`	`isEnabled()`
`final boolean`	`isFocusable()`
`final boolean`	`isFocusableInTouchMode()`
`boolean`	`isFocused()`
`final boolean`	`isFocusedByDefault()`
`boolean`	`isForceDarkAllowed()`
`boolean`	`isHapticFeedbackEnabled()`
`boolean`	`isHardwareAccelerated()`
`boolean`	`isHorizontalFadingEdgeEnabled()`
`boolean`	`isHorizontalScrollBarEnabled()`
`boolean`	`isHovered()`
`boolean`	`isImportantForAccessibility()`
`final boolean`	`isImportantForAutofill()`
`final boolean`	`isImportantForContentCapture()`
`boolean`	`isInEditMode()`
`boolean`	`isInLayout()`
`boolean`	`isInTouchMode()`
`final boolean`	`isKeyboardNavigationCluster()`
`boolean`	`isLaidOut()`
`boolean`	`isLayoutDirectionResolved()`
`boolean`	`isLayoutRequested()`
`boolean`	`isLongClickable()`
`boolean`	`isNestedScrollingEnabled()`
`boolean`	`isOpaque()`
`boolean`	`isPaddingOffsetRequired()`
`boolean`	`isPaddingRelative()`
`boolean`	`isPivotSet()`
`boolean`	`isPressed()`
`boolean`	`isSaveEnabled()`
`boolean`	`isSaveFromParentEnabled()`
`boolean`	`isScreenReaderFocusable()`
`boolean`	`isScrollContainer()`
`boolean`	`isScrollbarFadingEnabled()`
`boolean`	`isSelected()`
`final boolean`	`isShowingLayoutBounds()`
`boolean`	`isShown()`
`boolean`	`isSoundEffectsEnabled()`
`final boolean`	`isTemporarilyDetached()`
`boolean`	`isTextAlignmentResolved()`
`boolean`	`isTextDirectionResolved()`
`boolean`	`isVerticalFadingEdgeEnabled()`
`boolean`	`isVerticalScrollBarEnabled()`
`boolean`	`isVisibleToUserForAutofill(int arg0)`
`void`	`jumpDrawablesToCurrentState()`
`View`	`keyboardNavigationClusterSearch(View arg0, int arg1)`
`void`	`layout(int arg0, int arg1, int arg2, int arg3)`
`final void`	`measure(int arg0, int arg1)`
`static int[]`	`mergeDrawableStates(int[] arg0, int[] arg1)`
`void`	`offsetLeftAndRight(int arg0)`
`void`	`offsetTopAndBottom(int arg0)`
`void`	`onAnimationEnd()`
`void`	`onAnimationStart()`
`WindowInsets`	`onApplyWindowInsets(WindowInsets arg0)`
`void`	`onAttachedToWindow()`
`void`	`onCancelPendingInputEvents()`
`boolean`	`onCapturedPointerEvent(MotionEvent arg0)`
`boolean`	`onCheckIsTextEditor()`
`void`	`onConfigurationChanged(Configuration arg0)`
`void`	`onCreateContextMenu(ContextMenu arg0)`
`int[]`	`onCreateDrawableState(int arg0)`
`InputConnection`	`onCreateInputConnection(EditorInfo arg0)`
`void`	`onDetachedFromWindow()`
`void`	`onDisplayHint(int arg0)`
`boolean`	`onDragEvent(DragEvent arg0)`
`void`	`onDraw(Canvas arg0)`
`void`	`onDrawForeground(Canvas arg0)`
`final void`	`onDrawScrollBars(Canvas arg0)`
`boolean`	`onFilterTouchEventForSecurity(MotionEvent arg0)`
`void`	`onFinishInflate()`
`void`	`onFinishTemporaryDetach()`
`void`	`onFocusChanged(boolean arg0, int arg1, Rect arg2)`
`boolean`	`onGenericMotionEvent(MotionEvent arg0)`
`void`	`onHoverChanged(boolean arg0)`
`boolean`	`onHoverEvent(MotionEvent arg0)`
`void`	`onInitializeAccessibilityEvent(AccessibilityEvent arg0)`
`void`	`onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo arg0)`
`boolean`	`onKeyDown(int arg0, KeyEvent arg1)`
`boolean`	`onKeyLongPress(int arg0, KeyEvent arg1)`
`boolean`	`onKeyMultiple(int arg0, int arg1, KeyEvent arg2)`
`boolean`	`onKeyPreIme(int arg0, KeyEvent arg1)`
`boolean`	`onKeyShortcut(int arg0, KeyEvent arg1)`
`boolean`	`onKeyUp(int arg0, KeyEvent arg1)`
`void`	`onLayout(boolean arg0, int arg1, int arg2, int arg3, int arg4)`
`void`	`onMeasure(int arg0, int arg1)`
`void`	`onOverScrolled(int arg0, int arg1, boolean arg2, boolean arg3)`
`void`	`onPointerCaptureChange(boolean arg0)`
`void`	`onPopulateAccessibilityEvent(AccessibilityEvent arg0)`
`void`	`onProvideAutofillStructure(ViewStructure arg0, int arg1)`
`void`	`onProvideAutofillVirtualStructure(ViewStructure arg0, int arg1)`
`void`	`onProvideContentCaptureStructure(ViewStructure arg0, int arg1)`
`void`	`onProvideStructure(ViewStructure arg0)`
`void`	`onProvideVirtualStructure(ViewStructure arg0)`
`PointerIcon`	`onResolvePointerIcon(MotionEvent arg0, int arg1)`
`void`	`onRestoreInstanceState(Parcelable arg0)`
`void`	`onRtlPropertiesChanged(int arg0)`
`Parcelable`	`onSaveInstanceState()`
`void`	`onScreenStateChanged(int arg0)`
`void`	`onScrollChanged(int arg0, int arg1, int arg2, int arg3)`
`boolean`	`onSetAlpha(int arg0)`
`void`	`onSizeChanged(int arg0, int arg1, int arg2, int arg3)`
`void`	`onStartTemporaryDetach()`
`boolean`	`onTouchEvent(MotionEvent arg0)`
`boolean`	`onTrackballEvent(MotionEvent arg0)`
`void`	`onVisibilityAggregated(boolean arg0)`
`void`	`onVisibilityChanged(View arg0, int arg1)`
`void`	`onWindowFocusChanged(boolean arg0)`
`void`	`onWindowSystemUiVisibilityChanged(int arg0)`
`void`	`onWindowVisibilityChanged(int arg0)`
`boolean`	`overScrollBy(int arg0, int arg1, int arg2, int arg3, int arg4, int arg5, int arg6, int arg7, boolean arg8)`
`boolean`	`performAccessibilityAction(int arg0, Bundle arg1)`
`boolean`	`performClick()`
`boolean`	`performContextClick(float arg0, float arg1)`
`boolean`	`performContextClick()`
`boolean`	`performHapticFeedback(int arg0)`
`boolean`	`performHapticFeedback(int arg0, int arg1)`
`boolean`	`performLongClick(float arg0, float arg1)`
`boolean`	`performLongClick()`
`void`	`playSoundEffect(int arg0)`
`boolean`	`post(Runnable arg0)`
`boolean`	`postDelayed(Runnable arg0, long arg1)`
`void`	`postInvalidate()`
`void`	`postInvalidate(int arg0, int arg1, int arg2, int arg3)`
`void`	`postInvalidateDelayed(long arg0, int arg1, int arg2, int arg3, int arg4)`
`void`	`postInvalidateDelayed(long arg0)`
`void`	`postInvalidateOnAnimation(int arg0, int arg1, int arg2, int arg3)`
`void`	`postInvalidateOnAnimation()`
`void`	`postOnAnimation(Runnable arg0)`
`void`	`postOnAnimationDelayed(Runnable arg0, long arg1)`
`void`	`refreshDrawableState()`
`void`	`releasePointerCapture()`
`boolean`	`removeCallbacks(Runnable arg0)`
`void`	`removeOnAttachStateChangeListener(View.OnAttachStateChangeListener arg0)`
`void`	`removeOnLayoutChangeListener(View.OnLayoutChangeListener arg0)`
`void`	`removeOnUnhandledKeyEventListener(View.OnUnhandledKeyEventListener arg0)`
`void`	`requestApplyInsets()`
`void`	`requestFitSystemWindows()`
`final boolean`	`requestFocus(int arg0)`
`final boolean`	`requestFocus()`
`boolean`	`requestFocus(int arg0, Rect arg1)`
`final boolean`	`requestFocusFromTouch()`
`void`	`requestLayout()`
`void`	`requestPointerCapture()`
`boolean`	`requestRectangleOnScreen(Rect arg0)`
`boolean`	`requestRectangleOnScreen(Rect arg0, boolean arg1)`
`final void`	`requestUnbufferedDispatch(int arg0)`
`final void`	`requestUnbufferedDispatch(MotionEvent arg0)`
`final <T extends View> T`	`requireViewById(int arg0)`
`void`	`resetPivot()`
`static int`	`resolveSize(int arg0, int arg1)`
`static int`	`resolveSizeAndState(int arg0, int arg1, int arg2)`
`boolean`	`restoreDefaultFocus()`
`void`	`restoreHierarchyState(SparseArray<Parcelable> arg0)`
`final void`	`saveAttributeDataForStyleable(Context arg0, int[] arg1, AttributeSet arg2, TypedArray arg3, int arg4, int arg5)`
`void`	`saveHierarchyState(SparseArray<Parcelable> arg0)`
`void`	`scheduleDrawable(Drawable arg0, Runnable arg1, long arg2)`
`void`	`scrollBy(int arg0, int arg1)`
`void`	`scrollTo(int arg0, int arg1)`
`void`	`sendAccessibilityEvent(int arg0)`
`void`	`sendAccessibilityEventUnchecked(AccessibilityEvent arg0)`
`void`	`setAccessibilityDelegate(View.AccessibilityDelegate arg0)`
`void`	`setAccessibilityHeading(boolean arg0)`
`void`	`setAccessibilityLiveRegion(int arg0)`
`void`	`setAccessibilityPaneTitle(CharSequence arg0)`
`void`	`setAccessibilityTraversalAfter(int arg0)`
`void`	`setAccessibilityTraversalBefore(int arg0)`
`void`	`setActivated(boolean arg0)`
`void`	`setAlpha(float arg0)`
`void`	`setAnimation(Animation arg0)`
`void`	`setAnimationMatrix(Matrix arg0)`
`void`	`setAutofillHints(String... arg0)`
`void`	`setAutofillId(AutofillId arg0)`
`void`	`setBackground(Drawable arg0)`
`void`	`setBackgroundColor(int arg0)`
`void`	`setBackgroundDrawable(Drawable arg0)`
`void`	`setBackgroundResource(int arg0)`
`void`	`setBackgroundTintBlendMode(BlendMode arg0)`
`void`	`setBackgroundTintList(ColorStateList arg0)`
`void`	`setBackgroundTintMode(PorterDuff.Mode arg0)`
`final void`	`setBottom(int arg0)`
`void`	`setCameraDistance(float arg0)`
`void`	`setClickable(boolean arg0)`
`void`	`setClipBounds(Rect arg0)`
`void`	`setClipToOutline(boolean arg0)`
`void`	`setContentCaptureSession(ContentCaptureSession arg0)`
`void`	`setContentDescription(CharSequence arg0)`
`void`	`setContextClickable(boolean arg0)`
`void`	`setDefaultFocusHighlightEnabled(boolean arg0)`
`void`	`setDrawingCacheBackgroundColor(int arg0)`
`void`	`setDrawingCacheEnabled(boolean arg0)`
`void`	`setDrawingCacheQuality(int arg0)`
`void`	`setDuplicateParentStateEnabled(boolean arg0)`
`void`	`setElevation(float arg0)`
`void`	`setEnabled(boolean arg0)`
`void`	`setFadingEdgeLength(int arg0)`
`void`	`setFilterTouchesWhenObscured(boolean arg0)`
`void`	`setFitsSystemWindows(boolean arg0)`
`void`	`setFocusable(boolean arg0)`
`void`	`setFocusable(int arg0)`
`void`	`setFocusableInTouchMode(boolean arg0)`
`void`	`setFocusedByDefault(boolean arg0)`
`void`	`setForceDarkAllowed(boolean arg0)`
`void`	`setForeground(Drawable arg0)`
`void`	`setForegroundGravity(int arg0)`
`void`	`setForegroundTintBlendMode(BlendMode arg0)`
`void`	`setForegroundTintList(ColorStateList arg0)`
`void`	`setForegroundTintMode(PorterDuff.Mode arg0)`
`void`	`setHapticFeedbackEnabled(boolean arg0)`
`void`	`setHasTransientState(boolean arg0)`
`void`	`setHorizontalFadingEdgeEnabled(boolean arg0)`
`void`	`setHorizontalScrollBarEnabled(boolean arg0)`
`void`	`setHorizontalScrollbarThumbDrawable(Drawable arg0)`
`void`	`setHorizontalScrollbarTrackDrawable(Drawable arg0)`
`void`	`setHovered(boolean arg0)`
`void`	`setId(int arg0)`
`void`	`setImportantForAccessibility(int arg0)`
`void`	`setImportantForAutofill(int arg0)`
`void`	`setImportantForContentCapture(int arg0)`
`void`	`setKeepScreenOn(boolean arg0)`
`void`	`setKeyboardNavigationCluster(boolean arg0)`
`void`	`setLabelFor(int arg0)`
`void`	`setLayerPaint(Paint arg0)`
`void`	`setLayerType(int arg0, Paint arg1)`
`void`	`setLayoutDirection(int arg0)`
`void`	`setLayoutParams(ViewGroup.LayoutParams arg0)`
`final void`	`setLeft(int arg0)`
`final void`	`setLeftTopRightBottom(int arg0, int arg1, int arg2, int arg3)`
`void`	`setLongClickable(boolean arg0)`
`final void`	`setMeasuredDimension(int arg0, int arg1)`
`void`	`setMinimumHeight(int arg0)`
`void`	`setMinimumWidth(int arg0)`
`void`	`setNestedScrollingEnabled(boolean arg0)`
`void`	`setNextClusterForwardId(int arg0)`
`void`	`setNextFocusDownId(int arg0)`
`void`	`setNextFocusForwardId(int arg0)`
`void`	`setNextFocusLeftId(int arg0)`
`void`	`setNextFocusRightId(int arg0)`
`void`	`setNextFocusUpId(int arg0)`
`void`	`setOnApplyWindowInsetsListener(View.OnApplyWindowInsetsListener arg0)`
`void`	`setOnCapturedPointerListener(View.OnCapturedPointerListener arg0)`
`void`	`setOnClickListener(View.OnClickListener arg0)`
`void`	`setOnContextClickListener(View.OnContextClickListener arg0)`
`void`	`setOnCreateContextMenuListener(View.OnCreateContextMenuListener arg0)`
`void`	`setOnDragListener(View.OnDragListener arg0)`
`void`	`setOnFocusChangeListener(View.OnFocusChangeListener arg0)`
`void`	`setOnGenericMotionListener(View.OnGenericMotionListener arg0)`
`void`	`setOnHoverListener(View.OnHoverListener arg0)`
`void`	`setOnKeyListener(View.OnKeyListener arg0)`
`void`	`setOnLongClickListener(View.OnLongClickListener arg0)`
`void`	`setOnScrollChangeListener(View.OnScrollChangeListener arg0)`
`void`	`setOnSystemUiVisibilityChangeListener(View.OnSystemUiVisibilityChangeListener arg0)`
`void`	`setOnTouchListener(View.OnTouchListener arg0)`
`void`	`setOutlineAmbientShadowColor(int arg0)`
`void`	`setOutlineProvider(ViewOutlineProvider arg0)`
`void`	`setOutlineSpotShadowColor(int arg0)`
`void`	`setOverScrollMode(int arg0)`
`void`	`setPadding(int arg0, int arg1, int arg2, int arg3)`
`void`	`setPaddingRelative(int arg0, int arg1, int arg2, int arg3)`
`void`	`setPivotX(float arg0)`
`void`	`setPivotY(float arg0)`
`void`	`setPointerIcon(PointerIcon arg0)`
`void`	`setPressed(boolean arg0)`
`final void`	`setRevealOnFocusHint(boolean arg0)`
`final void`	`setRight(int arg0)`
`void`	`setRotation(float arg0)`
`void`	`setRotationX(float arg0)`
`void`	`setRotationY(float arg0)`
`void`	`setSaveEnabled(boolean arg0)`
`void`	`setSaveFromParentEnabled(boolean arg0)`
`void`	`setScaleX(float arg0)`
`void`	`setScaleY(float arg0)`
`void`	`setScreenReaderFocusable(boolean arg0)`
`void`	`setScrollBarDefaultDelayBeforeFade(int arg0)`
`void`	`setScrollBarFadeDuration(int arg0)`
`void`	`setScrollBarSize(int arg0)`
`void`	`setScrollBarStyle(int arg0)`
`void`	`setScrollContainer(boolean arg0)`
`void`	`setScrollIndicators(int arg0, int arg1)`
`void`	`setScrollIndicators(int arg0)`
`void`	`setScrollX(int arg0)`
`void`	`setScrollY(int arg0)`
`void`	`setScrollbarFadingEnabled(boolean arg0)`
`void`	`setSelected(boolean arg0)`
`void`	`setSoundEffectsEnabled(boolean arg0)`
`void`	`setStateDescription(CharSequence arg0)`
`void`	`setStateListAnimator(StateListAnimator arg0)`
`void`	`setSystemGestureExclusionRects(List<Rect> arg0)`
`void`	`setSystemUiVisibility(int arg0)`
`void`	`setTag(int arg0, Object arg1)`
`void`	`setTag(Object arg0)`
`void`	`setTextAlignment(int arg0)`
`void`	`setTextDirection(int arg0)`
`void`	`setTooltipText(CharSequence arg0)`
`final void`	`setTop(int arg0)`
`void`	`setTouchDelegate(TouchDelegate arg0)`
`void`	`setTransitionAlpha(float arg0)`
`final void`	`setTransitionName(String arg0)`
`void`	`setTransitionVisibility(int arg0)`
`void`	`setTranslationX(float arg0)`
`void`	`setTranslationY(float arg0)`
`void`	`setTranslationZ(float arg0)`
`void`	`setVerticalFadingEdgeEnabled(boolean arg0)`
`void`	`setVerticalScrollBarEnabled(boolean arg0)`
`void`	`setVerticalScrollbarPosition(int arg0)`
`void`	`setVerticalScrollbarThumbDrawable(Drawable arg0)`
`void`	`setVerticalScrollbarTrackDrawable(Drawable arg0)`
`void`	`setVisibility(int arg0)`
`void`	`setWillNotCacheDrawing(boolean arg0)`
`void`	`setWillNotDraw(boolean arg0)`
`void`	`setWindowInsetsAnimationCallback(WindowInsetsAnimation.Callback arg0)`
`void`	`setX(float arg0)`
`void`	`setY(float arg0)`
`void`	`setZ(float arg0)`
`boolean`	`showContextMenu()`
`boolean`	`showContextMenu(float arg0, float arg1)`
`ActionMode`	`startActionMode(ActionMode.Callback arg0, int arg1)`
`ActionMode`	`startActionMode(ActionMode.Callback arg0)`
`void`	`startAnimation(Animation arg0)`
`final boolean`	`startDrag(ClipData arg0, View.DragShadowBuilder arg1, Object arg2, int arg3)`
`final boolean`	`startDragAndDrop(ClipData arg0, View.DragShadowBuilder arg1, Object arg2, int arg3)`
`boolean`	`startNestedScroll(int arg0)`
`void`	`stopNestedScroll()`
`String`	`toString()`
`void`	`transformMatrixToGlobal(Matrix arg0)`
`void`	`transformMatrixToLocal(Matrix arg0)`
`void`	`unscheduleDrawable(Drawable arg0, Runnable arg1)`
`void`	`unscheduleDrawable(Drawable arg0)`
`final void`	`updateDragShadow(View.DragShadowBuilder arg0)`
`boolean`	`verifyDrawable(Drawable arg0)`
`boolean`	`willNotCacheDrawing()`
`boolean`	`willNotDraw()`

From class


        
          java.lang.Object

`Object`	`clone()`
`boolean`	`equals(Object arg0)`
`void`	`finalize()`
`final Class<?>`	`getClass()`
`int`	`hashCode()`
`final void`	`notify()`
`final void`	`notifyAll()`
`String`	`toString()`
`final void`	`wait(long arg0, int arg1)`
`final void`	`wait(long arg0)`
`final void`	`wait()`

From interface


        
          android.view.ViewParent

`abstract void`	`bringChildToFront(View arg0)`
`abstract boolean`	`canResolveLayoutDirection()`
`abstract boolean`	`canResolveTextAlignment()`
`abstract boolean`	`canResolveTextDirection()`
`abstract void`	`childDrawableStateChanged(View arg0)`
`abstract void`	`childHasTransientStateChanged(View arg0, boolean arg1)`
`abstract void`	`clearChildFocus(View arg0)`
`abstract void`	`createContextMenu(ContextMenu arg0)`
`abstract View`	`focusSearch(View arg0, int arg1)`
`abstract void`	`focusableViewAvailable(View arg0)`
`abstract boolean`	`getChildVisibleRect(View arg0, Rect arg1, Point arg2)`
`abstract int`	`getLayoutDirection()`
`abstract ViewParent`	`getParent()`
`abstract ViewParent`	`getParentForAccessibility()`
`abstract int`	`getTextAlignment()`
`abstract int`	`getTextDirection()`
`abstract void`	`invalidateChild(View arg0, Rect arg1)`
`abstract ViewParent`	`invalidateChildInParent(int[] arg0, Rect arg1)`
`abstract boolean`	`isLayoutDirectionResolved()`
`abstract boolean`	`isLayoutRequested()`
`abstract boolean`	`isTextAlignmentResolved()`
`abstract boolean`	`isTextDirectionResolved()`
`abstract View`	`keyboardNavigationClusterSearch(View arg0, int arg1)`
`abstract void`	`notifySubtreeAccessibilityStateChanged(View arg0, View arg1, int arg2)`
`default void`	`onDescendantInvalidated(View arg0, View arg1)`
`abstract boolean`	`onNestedFling(View arg0, float arg1, float arg2, boolean arg3)`
`abstract boolean`	`onNestedPreFling(View arg0, float arg1, float arg2)`
`abstract boolean`	`onNestedPrePerformAccessibilityAction(View arg0, int arg1, Bundle arg2)`
`abstract void`	`onNestedPreScroll(View arg0, int arg1, int arg2, int[] arg3)`
`abstract void`	`onNestedScroll(View arg0, int arg1, int arg2, int arg3, int arg4)`
`abstract void`	`onNestedScrollAccepted(View arg0, View arg1, int arg2)`
`abstract boolean`	`onStartNestedScroll(View arg0, View arg1, int arg2)`
`abstract void`	`onStopNestedScroll(View arg0)`
`abstract void`	`recomputeViewAttributes(View arg0)`
`abstract void`	`requestChildFocus(View arg0, View arg1)`
`abstract boolean`	`requestChildRectangleOnScreen(View arg0, Rect arg1, boolean arg2)`
`abstract void`	`requestDisallowInterceptTouchEvent(boolean arg0)`
`abstract void`	`requestFitSystemWindows()`
`abstract void`	`requestLayout()`
`abstract boolean`	`requestSendAccessibilityEvent(View arg0, AccessibilityEvent arg1)`
`abstract void`	`requestTransparentRegion(View arg0)`
`abstract boolean`	`showContextMenuForChild(View arg0)`
`abstract boolean`	`showContextMenuForChild(View arg0, float arg1, float arg2)`
`abstract ActionMode`	`startActionModeForChild(View arg0, ActionMode.Callback arg1, int arg2)`
`abstract ActionMode`	`startActionModeForChild(View arg0, ActionMode.Callback arg1)`

From interface


        
          android.view.ViewManager

`abstract void`	`addView(View arg0, ViewGroup.LayoutParams arg1)`
`abstract void`	`removeView(View arg0)`
`abstract void`	`updateViewLayout(View arg0, ViewGroup.LayoutParams arg1)`

From interface


        
          android.graphics.drawable.Drawable.Callback

`abstract void`	`invalidateDrawable(Drawable arg0)`
`abstract void`	`scheduleDrawable(Drawable arg0, Runnable arg1, long arg2)`
`abstract void`	`unscheduleDrawable(Drawable arg0, Runnable arg1)`

From interface


        
          android.view.KeyEvent.Callback

`abstract boolean`	`onKeyDown(int arg0, KeyEvent arg1)`
`abstract boolean`	`onKeyLongPress(int arg0, KeyEvent arg1)`
`abstract boolean`	`onKeyMultiple(int arg0, int arg1, KeyEvent arg2)`
`abstract boolean`	`onKeyUp(int arg0, KeyEvent arg1)`

From interface


        
          android.view.accessibility.AccessibilityEventSource

`abstract void`	`sendAccessibilityEvent(int arg0)`
`abstract void`	`sendAccessibilityEventUnchecked(AccessibilityEvent arg0)`

Public constructors

PreviewView

public PreviewView (Context context)

Parameters
`context`	`Context`

PreviewView

public PreviewView (Context context, 
                AttributeSet attrs)

Parameters
`context`	`Context`
`attrs`	`AttributeSet`

PreviewView

public PreviewView (Context context, 
                AttributeSet attrs, 
                int defStyleAttr)

Parameters
`context`	`Context`
`attrs`	`AttributeSet`
`defStyleAttr`	`int`

PreviewView

public PreviewView (Context context, 
                AttributeSet attrs, 
                int defStyleAttr, 
                int defStyleRes)

Parameters
`context`	`Context`
`attrs`	`AttributeSet`
`defStyleAttr`	`int`
`defStyleRes`	`int`

Public methods

createMeteringPointFactory

public MeteringPointFactory createMeteringPointFactory (CameraSelector cameraSelector)

Creates a MeteringPointFactory by a given CameraSelector

The returned MeteringPointFactory is capable of creating MeteringPoints from (x, y) coordinates in the PreviewView. This conversion takes into account its PreviewView.ScaleType. It is recommended to call this method to create a new factory every time you start a focus and metering action, instead of caching the factory instance.

When the PreviewView has a width and/or height equal to zero, or when a preview Surface is not yet requested, the returned factory will always create invalid MeteringPoints which could lead to the failure of CameraControl.startFocusAndMetering(FocusMeteringAction) but it won't cause any crash.

Parameters
`cameraSelector`	`CameraSelector`: the CameraSelector which the `Preview` is bound to.

Returns
`MeteringPointFactory`	a `MeteringPointFactory`

createSurfaceProvider

public Preview.SurfaceProvider createSurfaceProvider ()

Gets the Preview.SurfaceProvider to be used with Preview.setSurfaceProvider(Executor, Preview.SurfaceProvider).

The returned Preview.SurfaceProvider will provide a preview Surface to the camera that's either managed by a TextureView or SurfaceView. This option is determined by the preferred implementation mode and the device's capabilities.

Returns
`Preview.SurfaceProvider`	A `Preview.SurfaceProvider` used to start the camera preview.

getBitmap

public Bitmap getBitmap ()

Returns a Bitmap representation of the content displayed on the preview Surface, or null if the camera preview hasn't started yet.

Do not invoke this method from a drawing method (View.onDraw(Canvas) for instance).

If an error occurs during the copy, an empty Bitmap will be returned.

Returns
`Bitmap`	A `Bitmap.Config.ARGB_8888` `Bitmap` representing the content displayed on the preview `Surface`, or null if the camera preview hasn't started yet.

getDeviceRotationForRemoteDisplayMode

public int getDeviceRotationForRemoteDisplayMode ()

Returns the device rotation value currently applied to the preview.

Returns
`int`	The device rotation value currently applied to the preview.

getPreferredImplementationMode

public PreviewView.ImplementationMode getPreferredImplementationMode ()

Returns the preferred PreviewView.ImplementationMode for preview.

If the preferred PreviewView.ImplementationMode hasn't been set using setPreferredImplementationMode(ImplementationMode), it defaults to PreviewView.ImplementationMode.SURFACE_VIEW.

Returns
`PreviewView.ImplementationMode`	The preferred `PreviewView.ImplementationMode` for preview.

getPreviewStreamState

public LiveData<PreviewView.StreamState> getPreviewStreamState ()

Gets the LiveData of current preview PreviewView.StreamState.

There are two states, PreviewView.StreamState.IDLE and PreviewView.StreamState.STREAMING. PreviewView.StreamState.IDLE represents the preview is currently not visible and streaming is stopped. PreviewView.StreamState.STREAMING means the preview is streaming.

When it's in STREAMING state, it guarantees preview is visible only when implementationMode is TEXTURE_VIEW. When in SURFACE_VIEW implementationMode, it is possible that preview becomes visible slightly after state changes to STREAMING. For apps relying on the preview visible signal to be working correctly, please set TEXTURE_VIEW mode by setPreferredImplementationMode(PreviewView.ImplementationMode).

Returns
`LiveData<PreviewView.StreamState>`	A `LiveData` containing the `PreviewView.StreamState`. Apps can either get current value by `LiveData.getValue()` or register a observer by `LiveData.observe(LifecycleOwner, Observer)` .

getScaleType

public PreviewView.ScaleType getScaleType ()

Returns the PreviewView.ScaleType currently applied to the preview.

By default, PreviewView.ScaleType.FILL_CENTER is applied to the preview.

Returns
`PreviewView.ScaleType`	The `PreviewView.ScaleType` currently applied to the preview.

setDeviceRotationForRemoteDisplayMode

public void setDeviceRotationForRemoteDisplayMode (int deviceRotation)

Provides the device rotation value to the preview in remote display mode.

The device rotation value will only take effect when detecting current view is on a remote display. If current view is on the device builtin display, PreviewView will directly use view's rotation value to do the transformation related calculations.

The preview transform calculations have strong dependence on the device rotation value. When a application is running in remote display, the rotation value obtained from current view will cause incorrect transform calculation results. To make the preview output result correct in remote display mode, the developers need to provide the device rotation value obtained from OrientationEventListener.

The mapping between the device rotation value and the orientation value obtained from OrientationEventListener are listed as the following.

OrientationEventListener.ORIENTATION_UNKNOWN: orientation == -1

Surface.ROTATION_0: orientation >= 315 || orientation < 45

Surface.ROTATION_90: orientation >= 225 && orientation < 315

Surface.ROTATION_180: orientation >= 135 && orientation < 225

Surface.ROTATION_270: orientation >= 45 && orientation < 135

Parameters
`deviceRotation`	`int`: The device rotation value, expressed as one of `Surface.ROTATION_0`, `Surface.ROTATION_90`, `Surface.ROTATION_180`, or `Surface.ROTATION_270`.

setPreferredImplementationMode

public void setPreferredImplementationMode (PreviewView.ImplementationMode preferredMode)

Specifies the preferred PreviewView.ImplementationMode to use for preview.

When the preferred PreviewView.ImplementationMode is PreviewView.ImplementationMode.SURFACE_VIEW but the device doesn't support this mode (e.g. devices with API level not newer than Android 7.0 or a supported camera hardware level CameraMetadata.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY), the actual implementation mode will be PreviewView.ImplementationMode.TEXTURE_VIEW.

Parameters
`preferredMode`	`PreviewView.ImplementationMode`: `SURFACE_VIEW` if a `SurfaceView` should be used to display the camera feed -when possible-, or `TEXTURE_VIEW` to use a `TextureView`.

setScaleType

public void setScaleType (PreviewView.ScaleType scaleType)

Applies a PreviewView.ScaleType to the preview.

Note that the PreviewView.ScaleType.FILL_CENTER is applied to the preview by default.

Parameters
`scaleType`	`PreviewView.ScaleType`: A `PreviewView.ScaleType` to apply to the preview.

Protected methods

onAttachedToWindow

protected void onAttachedToWindow ()

onDetachedFromWindow

protected void onDetachedFromWindow ()

PreviewView

Summary

Nested classes

Inherited constants

Inherited fields

Public constructors

Public methods

Protected methods

Inherited methods

Public constructors

PreviewView

PreviewView

PreviewView

PreviewView

Public methods

createMeteringPointFactory

createSurfaceProvider

getBitmap

getDeviceRotationForRemoteDisplayMode

getPreferredImplementationMode

getPreviewStreamState

getScaleType

setDeviceRotationForRemoteDisplayMode

setPreferredImplementationMode

setScaleType

Protected methods

onAttachedToWindow

onDetachedFromWindow