ImageView


public class ImageView
extends View

java.lang.Object
   ↳ android.view.View
     ↳ android.widget.ImageView


Displays image resources, for example Bitmap or Drawable resources. ImageView is also commonly used to apply tints to an image and handle image scaling.

The following XML snippet is a common example of using an ImageView to display an image resource:

 <LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
     <ImageView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:src="@drawable/my_image"
         android:contentDescription="@string/my_image_description"
         />
 </LinearLayout>
 

To learn more about Drawables, see: Drawable Resources. To learn more about working with Bitmaps, see: Handling Bitmaps.

Summary

XML attributes

android:adjustViewBounds Set this to true if you want the ImageView to adjust its bounds to preserve the aspect ratio of its drawable. 
android:baseline The offset of the baseline within this view. 
android:baselineAlignBottom If true, the image view will be baseline aligned with based on its bottom edge. 
android:cropToPadding If true, the image will be cropped to fit within its padding. 
android:maxHeight An optional argument to supply a maximum height for this view. 
android:maxWidth An optional argument to supply a maximum width for this view. 
android:scaleType Controls how the image should be resized or moved to match the size of this ImageView. 
android:src Sets a drawable as the content of this ImageView. 
android:tint The tinting color for the image. 
android:tintMode Blending mode used to apply the image tint. 

Inherited XML attributes

Inherited constants

Inherited fields

Public constructors

ImageView(Context context)
ImageView(Context context, AttributeSet attrs)
ImageView(Context context, AttributeSet attrs, int defStyleAttr)
ImageView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)

Public methods

void animateTransform(Matrix matrix)

Applies a temporary transformation Matrix to the view's drawable when it is drawn.

final void clearColorFilter()

Removes the image's ColorFilter.

void drawableHotspotChanged(float x, float y)

This function is called whenever the view hotspot changes and needs to be propagated to drawables or child views managed by the view.

CharSequence getAccessibilityClassName()

Return the class name of this object to be used for accessibility purposes.

boolean getAdjustViewBounds()

True when ImageView is adjusting its bounds to preserve the aspect ratio of its drawable

int getBaseline()

Return the offset of the widget's text baseline from the widget's top boundary.

boolean getBaselineAlignBottom()

Checks whether this view's baseline is considered the bottom of the view.

ColorFilter getColorFilter()

Returns the active color filter for this ImageView.

boolean getCropToPadding()

Return whether this ImageView crops to padding.

Drawable getDrawable()

Gets the current Drawable, or null if no Drawable has been assigned.

int getImageAlpha()

Returns the alpha that will be applied to the drawable of this ImageView.

Matrix getImageMatrix()

Returns the view's optional matrix.

BlendMode getImageTintBlendMode()

Gets the blending mode used to apply the tint to the image Drawable

ColorStateList getImageTintList()

Get the current ColorStateList used to tint the image Drawable, or null if no tint is applied.

PorterDuff.Mode getImageTintMode()

Gets the blending mode used to apply the tint to the image Drawable

int getMaxHeight()

The maximum height of this view.

int getMaxWidth()

The maximum width of this view.

ImageView.ScaleType getScaleType()

Returns the current ScaleType that is used to scale the bounds of an image to the bounds of the ImageView.

boolean hasOverlappingRendering()

Returns whether this View has content which overlaps.

void invalidateDrawable(Drawable dr)

Invalidates the specified Drawable.

boolean isOpaque()

Indicates whether this View is opaque.

void jumpDrawablesToCurrentState()

Call Drawable.jumpToCurrentState() on all Drawable objects associated with this view.

int[] onCreateDrawableState(int extraSpace)

Generate the new Drawable state for this view.

void onRtlPropertiesChanged(int layoutDirection)

Called when any RTL property (layout direction or text direction or text alignment) has been changed.

void onVisibilityAggregated(boolean isVisible)

Called when the user-visibility of this View is potentially affected by a change to this view itself, an ancestor view or the window this view is attached to.

void setAdjustViewBounds(boolean adjustViewBounds)

Set this to true if you want the ImageView to adjust its bounds to preserve the aspect ratio of its drawable.

void setAlpha(int alpha)

This method was deprecated in API level 16. use #setImageAlpha(int) instead

void setBaseline(int baseline)

Set the offset of the widget's text baseline from the widget's top boundary.

void setBaselineAlignBottom(boolean aligned)

Sets whether the baseline of this view to the bottom of the view.

final void setColorFilter(int color, PorterDuff.Mode mode)

Sets a tinting option for the image.

void setColorFilter(ColorFilter cf)

Apply an arbitrary colorfilter to the image.

final void setColorFilter(int color)

Set a tinting option for the image.

void setCropToPadding(boolean cropToPadding)

Sets whether this ImageView will crop to padding.

void setImageAlpha(int alpha)

Sets the alpha value that should be applied to the image.

void setImageBitmap(Bitmap bm)

Sets a Bitmap as the content of this ImageView.

void setImageDrawable(Drawable drawable)

Sets a drawable as the content of this ImageView.

void setImageIcon(Icon icon)

Sets the content of this ImageView to the specified Icon.

void setImageLevel(int level)

Sets the image level, when it is constructed from a LevelListDrawable.

void setImageMatrix(Matrix matrix)

Adds a transformation Matrix that is applied to the view's drawable when it is drawn.

void setImageResource(int resId)

Sets a drawable as the content of this ImageView.

void setImageState(int[] state, boolean merge)

Set the state of the current StateListDrawable.

void setImageTintBlendMode(BlendMode blendMode)

Specifies the blending mode used to apply the tint specified by setImageTintList(android.content.res.ColorStateList)} to the image drawable.

void setImageTintList(ColorStateList tint)

Applies a tint to the image drawable.

void setImageTintMode(PorterDuff.Mode tintMode)

Specifies the blending mode used to apply the tint specified by setImageTintList(android.content.res.ColorStateList)} to the image drawable.

void setImageURI(Uri uri)

Sets the content of this ImageView to the specified Uri.

void setMaxHeight(int maxHeight)

An optional argument to supply a maximum height for this view.

void setMaxWidth(int maxWidth)

An optional argument to supply a maximum width for this view.

void setScaleType(ImageView.ScaleType scaleType)

Controls how the image should be resized or moved to match the size of this ImageView.

void setSelected(boolean selected)

Changes the selection state of this view.

void setVisibility(int visibility)

Set the visibility state of this view.

Protected methods

void drawableStateChanged()

This function is called whenever the state of the view changes in such a way that it impacts the state of drawables being shown.

void onAttachedToWindow()

This is called when the view is attached to a window.

void onDetachedFromWindow()

This is called when the view is detached from a window.

void onDraw(Canvas canvas)

Implement this to do your drawing.

void onMeasure(int widthMeasureSpec, int heightMeasureSpec)

Measure the view and its content to determine the measured width and the measured height.

boolean setFrame(int l, int t, int r, int b)
boolean verifyDrawable(Drawable dr)

If your view subclass is displaying its own Drawable objects, it should override this function and return true for any Drawable it is displaying.

Inherited methods

XML attributes

android:adjustViewBounds

Set this to true if you want the ImageView to adjust its bounds to preserve the aspect ratio of its drawable.

May be a boolean value, such as "true" or "false".

Related methods:

android:baseline

The offset of the baseline within this view. See {see android.view.View#getBaseline} for details

May be a dimension value, which is a floating point number appended with a unit such as "14.5sp". Available units are: px (pixels), dp (density-independent pixels), sp (scaled pixels based on preferred font size), in (inches), and mm (millimeters).

Related methods:

android:baselineAlignBottom

If true, the image view will be baseline aligned with based on its bottom edge.

May be a boolean value, such as "true" or "false".

Related methods:

android:cropToPadding

If true, the image will be cropped to fit within its padding.

May be a boolean value, such as "true" or "false".

Related methods:

android:maxHeight

An optional argument to supply a maximum height for this view. See {see android.widget.ImageView#setMaxHeight} for details.

May be a dimension value, which is a floating point number appended with a unit such as "14.5sp". Available units are: px (pixels), dp (density-independent pixels), sp (scaled pixels based on preferred font size), in (inches), and mm (millimeters).

Related methods:

android:maxWidth

An optional argument to supply a maximum width for this view. See {see android.widget.ImageView#setMaxWidth} for details.

May be a dimension value, which is a floating point number appended with a unit such as "14.5sp". Available units are: px (pixels), dp (density-independent pixels), sp (scaled pixels based on preferred font size), in (inches), and mm (millimeters).

Related methods:

android:scaleType

Controls how the image should be resized or moved to match the size of this ImageView. See ImageView.ScaleType

Must be one of the following constant values.

ConstantValueDescription
center5Center the image in the view, but perform no scaling.
centerCrop6Scale the image uniformly (maintain the image's aspect ratio) so both dimensions (width and height) of the image will be equal to or larger than the corresponding dimension of the view (minus padding). The image is then centered in the view.
centerInside7Scale the image uniformly (maintain the image's aspect ratio) so that both dimensions (width and height) of the image will be equal to or less than the corresponding dimension of the view (minus padding). The image is then centered in the view.
fitCenter3Scale the image using Matrix.ScaleToFit.CENTER.
fitEnd4Scale the image using Matrix.ScaleToFit.END.
fitStart2Scale the image using Matrix.ScaleToFit.START.
fitXY1Scale the image using Matrix.ScaleToFit.FILL.
matrix0Scale using the image matrix when drawing. See ImageView.setImageMatrix(Matrix).

Related methods:

android:src

Sets a drawable as the content of this ImageView.

May be a reference to another resource, in the form "@[+][package:]type/name" or a theme attribute in the form "?[package:]type/name".

May be a color value, in the form of "#rgb", "#argb", "#rrggbb", or "#aarrggbb".

Related methods:

android:tint

The tinting color for the image. By default, the tint will blend using SRC_ATOP mode. Please note that for compatibility reasons, this is NOT consistent with the default SRC_IN tint mode used by ImageView.setImageTintList(ColorStateList) and by similar tint attributes on other views.

May be a color value, in the form of "#rgb", "#argb", "#rrggbb", or "#aarrggbb".

Related methods:

android:tintMode

Blending mode used to apply the image tint.

Must be one of the following constant values.

ConstantValueDescription
add10Combines the tint and drawable color and alpha channels, clamping the result to valid color values. Saturate(S + D)
multiplyeMultiplies the color and alpha channels of the drawable with those of the tint. [Sa * Da, Sc * Dc]
screenf[Sa + Da - Sa * Da, Sc + Dc - Sc * Dc]
src_atop9The tint is drawn above the drawable, but with the drawable\u2019s alpha channel masking the result. [Da, Sc * Da + (1 - Sa) * Dc]
src_in5The tint is masked by the alpha channel of the drawable. The drawable\u2019s color channels are thrown out. [Sa * Da, Sc * Da]
src_over3The tint is drawn on top of the drawable. [Sa + (1 - Sa)*Da, Rc = Sc + (1 - Sa)*Dc]

Related methods:

Public constructors

ImageView

Added in API level 1
public ImageView (Context context)

Parameters
context Context

ImageView

Added in API level 1
public ImageView (Context context, 
                AttributeSet attrs)

Parameters
context Context

attrs AttributeSet: This value may be null.

ImageView

Added in API level 1
public ImageView (Context context, 
                AttributeSet attrs, 
                int defStyleAttr)

Parameters
context Context

attrs AttributeSet: This value may be null.

defStyleAttr int

ImageView

Added in API level 21
public ImageView (Context context, 
                AttributeSet attrs, 
                int defStyleAttr, 
                int defStyleRes)

Parameters
context Context

attrs AttributeSet: This value may be null.

defStyleAttr int

defStyleRes int

Public methods

animateTransform

Added in API level 29
public void animateTransform (Matrix matrix)

Applies a temporary transformation Matrix to the view's drawable when it is drawn. Allows custom scaling, translation, and perspective distortion during an animation. This method is a lightweight analogue of ImageView#setImageMatrix(Matrix) to use only during animations as this matrix will be cleared after the next drawable update or view's bounds change.

Parameters
matrix Matrix: The transformation parameters in matrix form. This value may be null.

clearColorFilter

Added in API level 1
public final void clearColorFilter ()

Removes the image's ColorFilter.

drawableHotspotChanged

Added in API level 21
public void drawableHotspotChanged (float x, 
                float y)

This function is called whenever the view hotspot changes and needs to be propagated to drawables or child views managed by the view.

Dispatching to child views is handled by dispatchDrawableHotspotChanged(float, float).

Be sure to call through to the superclass when overriding this function.
If you override this method you must call through to the superclass implementation.

Parameters
x float: hotspot x coordinate

y float: hotspot y coordinate

getAccessibilityClassName

Added in API level 23
public CharSequence getAccessibilityClassName ()

Return the class name of this object to be used for accessibility purposes. Subclasses should only override this if they are implementing something that should be seen as a completely new class of view when used by accessibility, unrelated to the class it is deriving from. This is used to fill in AccessibilityNodeInfo.setClassName.

Returns
CharSequence

getAdjustViewBounds

Added in API level 16
public boolean getAdjustViewBounds ()

True when ImageView is adjusting its bounds to preserve the aspect ratio of its drawable

Related XML Attributes:

Returns
boolean whether to adjust the bounds of this view to preserve the original aspect ratio of the drawable

getBaseline

Added in API level 1
public int getBaseline ()

Return the offset of the widget's text baseline from the widget's top boundary.

Returns
int the offset of the baseline within the widget's bounds or -1 if baseline alignment is not supported.

getBaselineAlignBottom

Added in API level 11
public boolean getBaselineAlignBottom ()

Checks whether this view's baseline is considered the bottom of the view.

Returns
boolean True if the ImageView's baseline is considered the bottom of the view, false if otherwise.

getColorFilter

Added in API level 16
public ColorFilter getColorFilter ()

Returns the active color filter for this ImageView.

Returns
ColorFilter the active color filter for this ImageView

getCropToPadding

Added in API level 16
public boolean getCropToPadding ()

Return whether this ImageView crops to padding.

Related XML Attributes:

Returns
boolean whether this ImageView crops to padding

getDrawable

Added in API level 1
public Drawable getDrawable ()

Gets the current Drawable, or null if no Drawable has been assigned.

Returns
Drawable the view's drawable, or null if no drawable has been assigned.

getImageAlpha

Added in API level 16
public int getImageAlpha ()

Returns the alpha that will be applied to the drawable of this ImageView.

Returns
int the alpha value that will be applied to the drawable of this ImageView (between 0 and 255 inclusive, with 0 being transparent and 255 being opaque)

See also:

getImageMatrix

Added in API level 1
public Matrix getImageMatrix ()

Returns the view's optional matrix. This is applied to the view's drawable when it is drawn. If there is no matrix, this method will return an identity matrix. Do not change this matrix in place but make a copy. If you want a different matrix applied to the drawable, be sure to call setImageMatrix().

Returns
Matrix

getImageTintBlendMode

Added in API level 29
public BlendMode getImageTintBlendMode ()

Gets the blending mode used to apply the tint to the image Drawable

Related XML Attributes:

Returns
BlendMode the blending mode used to apply the tint to the image Drawable This value may be null.

getImageTintList

Added in API level 21
public ColorStateList getImageTintList ()

Get the current ColorStateList used to tint the image Drawable, or null if no tint is applied.

Related XML Attributes:

Returns
ColorStateList the tint applied to the image drawable

getImageTintMode

Added in API level 21
public PorterDuff.Mode getImageTintMode ()

Gets the blending mode used to apply the tint to the image Drawable

Related XML Attributes:

Returns
PorterDuff.Mode the blending mode used to apply the tint to the image Drawable This value may be null.

getMaxHeight

Added in API level 16
public int getMaxHeight ()

The maximum height of this view.

Related XML Attributes:

Returns
int The maximum height of this view

See also:

getMaxWidth

Added in API level 16
public int getMaxWidth ()

The maximum width of this view.

Related XML Attributes:

Returns
int The maximum width of this view

See also:

getScaleType

Added in API level 1
public ImageView.ScaleType getScaleType ()

Returns the current ScaleType that is used to scale the bounds of an image to the bounds of the ImageView.

Related XML Attributes:

Returns
ImageView.ScaleType The ScaleType used to scale the image.

hasOverlappingRendering

Added in API level 16
public boolean hasOverlappingRendering ()

Returns whether this View has content which overlaps.

This function, intended to be overridden by specific View types, is an optimization when alpha is set on a view. If rendering overlaps in a view with alpha < 1, that view is drawn to an offscreen buffer and then composited into place, which can be expensive. If the view has no overlapping rendering, the view can draw each primitive with the appropriate alpha value directly. An example of overlapping rendering is a TextView with a background image, such as a Button. An example of non-overlapping rendering is a TextView with no background, or an ImageView with only the foreground image. The default implementation returns true; subclasses should override if they have cases which can be optimized.

Note: The return value of this method is ignored if forceHasOverlappingRendering(boolean) has been called on this view.

Returns
boolean true if the content in this view might overlap, false otherwise.

invalidateDrawable

Added in API level 1
public void invalidateDrawable (Drawable dr)

Invalidates the specified Drawable.

Parameters
dr Drawable: This value cannot be null.

isOpaque

Added in API level 7
public boolean isOpaque ()

Indicates whether this View is opaque. An opaque View guarantees that it will draw all the pixels overlapping its bounds using a fully opaque color. Subclasses of View should override this method whenever possible to indicate whether an instance is opaque. Opaque Views are treated in a special way by the View hierarchy, possibly allowing it to perform optimizations during invalidate/draw passes.

Returns
boolean True if this View is guaranteed to be fully opaque, false otherwise.

jumpDrawablesToCurrentState

Added in API level 11
public void jumpDrawablesToCurrentState ()

Call Drawable.jumpToCurrentState() on all Drawable objects associated with this view.

Also calls StateListAnimator#jumpToCurrentState() if there is a StateListAnimator attached to this view.
If you override this method you must call through to the superclass implementation.

onCreateDrawableState

Added in API level 1
public int[] onCreateDrawableState (int extraSpace)

Generate the new Drawable state for this view. This is called by the view system when the cached Drawable state is determined to be invalid. To retrieve the current state, you should use getDrawableState().

Parameters
extraSpace int: if non-zero, this is the number of extra entries you would like in the returned array in which you can place your own states.

Returns
int[] Returns an array holding the current Drawable state of the view.

onRtlPropertiesChanged

Added in API level 17
public void onRtlPropertiesChanged (int layoutDirection)

Called when any RTL property (layout direction or text direction or text alignment) has been changed. Subclasses need to override this method to take care of cached information that depends on the resolved layout direction, or to inform child views that inherit their layout direction. The default implementation does nothing.

Parameters
layoutDirection int: the direction of the layout Value is View.LAYOUT_DIRECTION_LTR, or View.LAYOUT_DIRECTION_RTL

onVisibilityAggregated

Added in API level 24
public void onVisibilityAggregated (boolean isVisible)

Called when the user-visibility of this View is potentially affected by a change to this view itself, an ancestor view or the window this view is attached to.
If you override this method you must call through to the superclass implementation.

Parameters
isVisible boolean: true if this view and all of its ancestors are View.VISIBLE and this view's window is also visible

setAdjustViewBounds

Added in API level 1
public void setAdjustViewBounds (boolean adjustViewBounds)

Set this to true if you want the ImageView to adjust its bounds to preserve the aspect ratio of its drawable.

Note: If the application targets API level 17 or lower, adjustViewBounds will allow the drawable to shrink the view bounds, but not grow to fill available measured space in all cases. This is for compatibility with legacy MeasureSpec and RelativeLayout behavior.

Related XML Attributes:

Parameters
adjustViewBounds boolean: Whether to adjust the bounds of this view to preserve the original aspect ratio of the drawable.

setAlpha

Added in API level 1
Deprecated in API level 16
public void setAlpha (int alpha)

This method was deprecated in API level 16.
use #setImageAlpha(int) instead

Sets the alpha value that should be applied to the image.

Parameters
alpha int: the alpha value that should be applied to the image

setBaseline

Added in API level 11
public void setBaseline (int baseline)

Set the offset of the widget's text baseline from the widget's top boundary. This value is overridden by the setBaselineAlignBottom(boolean) property.

Related XML Attributes:

Parameters
baseline int: The baseline to use, or -1 if none is to be provided.

See also:

setBaselineAlignBottom

Added in API level 11
public void setBaselineAlignBottom (boolean aligned)

Sets whether the baseline of this view to the bottom of the view. Setting this value overrides any calls to setBaseline.

Related XML Attributes:

Parameters
aligned boolean: If true, the image view will be baseline aligned by its bottom edge.

setColorFilter

Added in API level 1
public final void setColorFilter (int color, 
                PorterDuff.Mode mode)

Sets a tinting option for the image.

Related XML Attributes:

Parameters
color int: Color tint to apply.

mode PorterDuff.Mode: How to apply the color. The standard mode is PorterDuff.Mode#SRC_ATOP

setColorFilter

Added in API level 1
public void setColorFilter (ColorFilter cf)

Apply an arbitrary colorfilter to the image.

Parameters
cf ColorFilter: the colorfilter to apply (may be null)

See also:

setColorFilter

Added in API level 8
public final void setColorFilter (int color)

Set a tinting option for the image. Assumes PorterDuff.Mode#SRC_ATOP blending mode.

Related XML Attributes:

Parameters
color int: Color tint to apply.

setCropToPadding

Added in API level 16
public void setCropToPadding (boolean cropToPadding)

Sets whether this ImageView will crop to padding.

Related XML Attributes:

Parameters
cropToPadding boolean: whether this ImageView will crop to padding

See also:

setImageAlpha

Added in API level 16
public void setImageAlpha (int alpha)

Sets the alpha value that should be applied to the image.

Parameters
alpha int: the alpha value that should be applied to the image (between 0 and 255 inclusive, with 0 being transparent and 255 being opaque)

See also:

setImageBitmap

Added in API level 1
public void setImageBitmap (Bitmap bm)

Sets a Bitmap as the content of this ImageView.

Parameters
bm Bitmap: The bitmap to set

setImageDrawable

Added in API level 1
public void setImageDrawable (Drawable drawable)

Sets a drawable as the content of this ImageView.

Parameters
drawable Drawable: the Drawable to set, or null to clear the content

setImageIcon

Added in API level 23
public void setImageIcon (Icon icon)

Sets the content of this ImageView to the specified Icon.

Depending on the Icon type, this may do Bitmap reading and decoding on the UI thread, which can cause UI jank. If that's a concern, consider using Icon#loadDrawableAsync(Context, Icon.OnDrawableLoadedListener, Handler) and then setImageDrawable(android.graphics.drawable.Drawable) instead.

Parameters
icon Icon: an Icon holding the desired image, or null to clear the content

setImageLevel

Added in API level 1
public void setImageLevel (int level)

Sets the image level, when it is constructed from a LevelListDrawable.

Parameters
level int: The new level for the image.

setImageMatrix

Added in API level 1
public void setImageMatrix (Matrix matrix)

Adds a transformation Matrix that is applied to the view's drawable when it is drawn. Allows custom scaling, translation, and perspective distortion.

Parameters
matrix Matrix: The transformation parameters in matrix form.

setImageResource

Added in API level 1
public void setImageResource (int resId)

Sets a drawable as the content of this ImageView.

This does Bitmap reading and decoding on the UI thread, which can cause a latency hiccup. If that's a concern, consider using setImageDrawable(android.graphics.drawable.Drawable) or setImageBitmap(android.graphics.Bitmap) and BitmapFactory instead.

Related XML Attributes:

Parameters
resId int: the resource identifier of the drawable

setImageState

Added in API level 1
public void setImageState (int[] state, 
                boolean merge)

Set the state of the current StateListDrawable. For more information about State List Drawables, see: the Drawable Resource Guide.

Parameters
state int: the state to set for the StateListDrawable

merge boolean: if true, merges the state values for the state you specify into the current state

setImageTintBlendMode

Added in API level 29
public void setImageTintBlendMode (BlendMode blendMode)

Specifies the blending mode used to apply the tint specified by setImageTintList(android.content.res.ColorStateList)} to the image drawable. The default mode is BlendMode#SRC_IN.

Related XML Attributes:

Parameters
blendMode BlendMode: the blending mode used to apply the tint, may be null to clear tint

setImageTintList

Added in API level 21
public void setImageTintList (ColorStateList tint)

Applies a tint to the image drawable. Does not modify the current tint mode, which is PorterDuff.Mode#SRC_IN by default.

Subsequent calls to setImageDrawable(android.graphics.drawable.Drawable) will automatically mutate the drawable and apply the specified tint and tint mode using Drawable#setTintList(ColorStateList).

Note: The default tint mode used by this setter is NOT consistent with the default tint mode used by the android:tint attribute. If the android:tint attribute is specified, the default tint mode will be set to PorterDuff.Mode#SRC_ATOP to ensure consistency with earlier versions of the platform.

Related XML Attributes:

Parameters
tint ColorStateList: the tint to apply, may be null to clear tint

setImageTintMode

Added in API level 21
public void setImageTintMode (PorterDuff.Mode tintMode)

Specifies the blending mode used to apply the tint specified by setImageTintList(android.content.res.ColorStateList)} to the image drawable. The default mode is PorterDuff.Mode#SRC_IN.

Related XML Attributes:

Parameters
tintMode PorterDuff.Mode: the blending mode used to apply the tint, may be null to clear tint

setImageURI

Added in API level 1
public void setImageURI (Uri uri)

Sets the content of this ImageView to the specified Uri. Note that you use this method to load images from a local Uri only.

To learn how to display images from a remote Uri see: Handling Bitmaps

This does Bitmap reading and decoding on the UI thread, which can cause a latency hiccup. If that's a concern, consider using setImageDrawable(android.graphics.drawable.Drawable) or setImageBitmap(android.graphics.Bitmap) and BitmapFactory instead.

On devices running SDK < 24, this method will fail to apply correct density scaling to images loaded from content and file schemes. Applications running on devices with SDK >= 24 MUST specify the targetSdkVersion in their manifest as 24 or above for density scaling to be applied to images loaded from these schemes.

Parameters
uri Uri: the Uri of an image, or null to clear the content

setMaxHeight

Added in API level 1
public void setMaxHeight (int maxHeight)

An optional argument to supply a maximum height for this view. Only valid if setAdjustViewBounds(boolean) has been set to true. To set an image to be a maximum of 100 x 100 while preserving the original aspect ratio, do the following: 1) set adjustViewBounds to true 2) set maxWidth and maxHeight to 100 3) set the height and width layout params to WRAP_CONTENT.

Note that this view could be still smaller than 100 x 100 using this approach if the original image is small. To set an image to a fixed size, specify that size in the layout params and then use setScaleType(android.widget.ImageView.ScaleType) to determine how to fit the image within the bounds.

Related XML Attributes:

Parameters
maxHeight int: maximum height for this view

See also:

setMaxWidth

Added in API level 1
public void setMaxWidth (int maxWidth)

An optional argument to supply a maximum width for this view. Only valid if setAdjustViewBounds(boolean) has been set to true. To set an image to be a maximum of 100 x 100 while preserving the original aspect ratio, do the following: 1) set adjustViewBounds to true 2) set maxWidth and maxHeight to 100 3) set the height and width layout params to WRAP_CONTENT.

Note that this view could be still smaller than 100 x 100 using this approach if the original image is small. To set an image to a fixed size, specify that size in the layout params and then use setScaleType(android.widget.ImageView.ScaleType) to determine how to fit the image within the bounds.

Related XML Attributes:

Parameters
maxWidth int: maximum width for this view

See also:

setScaleType

Added in API level 1
public void setScaleType (ImageView.ScaleType scaleType)

Controls how the image should be resized or moved to match the size of this ImageView.

Related XML Attributes:

Parameters
scaleType ImageView.ScaleType: The desired scaling mode.

setSelected

Added in API level 1
public void setSelected (boolean selected)

Changes the selection state of this view. A view can be selected or not. Note that selection is not the same as focus. Views are typically selected in the context of an AdapterView like ListView or GridView; the selected view is the view that is highlighted.

Parameters
selected boolean: true if the view must be selected, false otherwise

setVisibility

Added in API level 1
public void setVisibility (int visibility)

Set the visibility state of this view.

Parameters
visibility int: One of View.VISIBLE, View.INVISIBLE, or View.GONE. Value is View.VISIBLE, View.INVISIBLE, or View.GONE

Protected methods

drawableStateChanged

Added in API level 1
protected void drawableStateChanged ()

This function is called whenever the state of the view changes in such a way that it impacts the state of drawables being shown.

If the View has a StateListAnimator, it will also be called to run necessary state change animations.

Be sure to call through to the superclass when overriding this function.
If you override this method you must call through to the superclass implementation.

onAttachedToWindow

Added in API level 1
protected void onAttachedToWindow ()

This is called when the view is attached to a window. At this point it has a Surface and will start drawing. Note that this function is guaranteed to be called before onDraw(android.graphics.Canvas), however it may be called any time before the first onDraw -- including before or after onMeasure(int, int).
If you override this method you must call through to the superclass implementation.

onDetachedFromWindow

Added in API level 1
protected void onDetachedFromWindow ()

This is called when the view is detached from a window. At this point it no longer has a surface for drawing.
If you override this method you must call through to the superclass implementation.

onDraw

Added in API level 1
protected void onDraw (Canvas canvas)

Implement this to do your drawing.

Parameters
canvas Canvas: the canvas on which the background will be drawn This value cannot be null.

onMeasure

Added in API level 1
protected void onMeasure (int widthMeasureSpec, 
                int heightMeasureSpec)

Measure the view and its content to determine the measured width and the measured height. This method is invoked by measure(int, int) and should be overridden by subclasses to provide accurate and efficient measurement of their contents.

CONTRACT: When overriding this method, you must call setMeasuredDimension(int, int) to store the measured width and height of this view. Failure to do so will trigger an IllegalStateException, thrown by measure(int, int). Calling the superclass' onMeasure(int, int) is a valid use.

The base class implementation of measure defaults to the background size, unless a larger size is allowed by the MeasureSpec. Subclasses should override onMeasure(int, int) to provide better measurements of their content.

If this method is overridden, it is the subclass's responsibility to make sure the measured height and width are at least the view's minimum height and width (getSuggestedMinimumHeight() and getSuggestedMinimumWidth()).

Parameters
widthMeasureSpec int: horizontal space requirements as imposed by the parent. The requirements are encoded with View.MeasureSpec.

heightMeasureSpec int: vertical space requirements as imposed by the parent. The requirements are encoded with View.MeasureSpec.

setFrame

Added in API level 1
protected boolean setFrame (int l, 
                int t, 
                int r, 
                int b)

Parameters
l int

t int

r int

b int

Returns
boolean

verifyDrawable

Added in API level 1
protected boolean verifyDrawable (Drawable dr)

If your view subclass is displaying its own Drawable objects, it should override this function and return true for any Drawable it is displaying. This allows animations for those drawables to be scheduled.

Be sure to call through to the super class when overriding this function.
If you override this method you must call through to the superclass implementation.

Parameters
dr Drawable: This value cannot be null.

Returns
boolean boolean If true then the Drawable is being displayed in the view; else false and it is not allowed to animate.