# ScaleGestureDetectorCompat added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) belongs to Maven artifact com.android.support:support-compat:28.0.0-alpha1 Summary:[Methods](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#inhmethods)\|[\[Expand All\]](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#) # ScaleGestureDetectorCompat | This package is part of the Android[support library](https://developer.android.com/topic/libraries/support-library)which is no longer maintained. The support library has been superseded by[AndroidX](https://developer.android.com/jetpack/androidx)which is part of[Jetpack](https://developer.android.com/jetpack). We recommend using the AndroidX libraries in all new projects. You should also consider[migrating](https://developer.android.com/jetpack/androidx/migrate)existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library[class mappings](https://developer.android.com/jetpack/androidx/migrate/class-mappings). ` public final class ScaleGestureDetectorCompat ` ` extends Object `` ` |---|----------------------------------------------------| | java.lang.Object || | ↳ | android.support.v4.view.ScaleGestureDetectorCompat |
*** ** * ** *** Helper for accessing features in[ScaleGestureDetector](https://developer.android.com/reference/android/view/ScaleGestureDetector.html). ## Summary | ### Public methods || |-------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` static boolean` | ` `[isQuickScaleEnabled](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#isQuickScaleEnabled(java.lang.Object))`(Object scaleGestureDetector) ` *This method was deprecated in API level 26.1.0. Use[isQuickScaleEnabled(ScaleGestureDetector)](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#isQuickScaleEnabled(android.view.ScaleGestureDetector))that takes[ScaleGestureDetector](https://developer.android.com/reference/android/view/ScaleGestureDetector.html)instead of[Object](https://developer.android.com/reference/java/lang/Object).* | | ` static boolean` | ` `[isQuickScaleEnabled](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#isQuickScaleEnabled(android.view.ScaleGestureDetector))`(`[ScaleGestureDetector](https://developer.android.com/reference/android/view/ScaleGestureDetector.html)` scaleGestureDetector) ` Returns whether the quick scale gesture, in which the user performs a double tap followed by a swipe, should perform scaling. | | ` static void` | ` `[setQuickScaleEnabled](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#setQuickScaleEnabled(android.view.ScaleGestureDetector, boolean))`(`[ScaleGestureDetector](https://developer.android.com/reference/android/view/ScaleGestureDetector.html)` scaleGestureDetector, boolean enabled) ` Sets whether the associated[ScaleGestureDetector.OnScaleGestureListener](https://developer.android.com/reference/android/view/ScaleGestureDetector.OnScaleGestureListener.html)should receive onScale callbacks when the user performs a doubleTap followed by a swipe. | | ` static void` | ` `[setQuickScaleEnabled](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#setQuickScaleEnabled(java.lang.Object, boolean))`(Object scaleGestureDetector, boolean enabled) ` *This method was deprecated in API level 26.1.0. Use[setQuickScaleEnabled(ScaleGestureDetector, boolean)](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#setQuickScaleEnabled(android.view.ScaleGestureDetector, boolean))that takes[ScaleGestureDetector](https://developer.android.com/reference/android/view/ScaleGestureDetector.html)instead of[Object](https://developer.android.com/reference/java/lang/Object).* | | ### Inherited methods | |-----------------------|---| | [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#)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() ` | || ## Public methods ### isQuickScaleEnabled added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` boolean isQuickScaleEnabled (Object scaleGestureDetector) ```
**This method was deprecated in API level 26.1.0.** Use[isQuickScaleEnabled(ScaleGestureDetector)](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#isQuickScaleEnabled(android.view.ScaleGestureDetector))that takes[ScaleGestureDetector](https://developer.android.com/reference/android/view/ScaleGestureDetector.html)instead of[Object](https://developer.android.com/reference/java/lang/Object). Returns whether the quick scale gesture, in which the user performs a double tap followed by a swipe, should perform scaling. See[setQuickScaleEnabled(ScaleGestureDetector, boolean)](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#setQuickScaleEnabled(android.view.ScaleGestureDetector, boolean)).
| Parameters || |------------------------|-----------------| | `scaleGestureDetector` | `Object`
| | Returns || |-----------|--------| | `boolean` |
| ### isQuickScaleEnabled added in[version 26.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` boolean isQuickScaleEnabled (ScaleGestureDetector scaleGestureDetector) ``` Returns whether the quick scale gesture, in which the user performs a double tap followed by a swipe, should perform scaling. See[setQuickScaleEnabled(ScaleGestureDetector, boolean)](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#setQuickScaleEnabled(android.view.ScaleGestureDetector, boolean)).
| Parameters || |------------------------|-------------------------------| | `scaleGestureDetector` | `ScaleGestureDetector`
| | Returns || |-----------|--------| | `boolean` |
| ### setQuickScaleEnabled added in[version 26.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void setQuickScaleEnabled (ScaleGestureDetector scaleGestureDetector, boolean enabled) ``` Sets whether the associated[ScaleGestureDetector.OnScaleGestureListener](https://developer.android.com/reference/android/view/ScaleGestureDetector.OnScaleGestureListener.html)should receive onScale callbacks when the user performs a doubleTap followed by a swipe. Note that this is enabled by default if the app targets API 19 and newer.
| Parameters || |------------------------|------------------------------------------------------------------| | `scaleGestureDetector` | `ScaleGestureDetector`
| | `enabled` | `boolean`: true to enable quick scaling, false to disable
| ### setQuickScaleEnabled added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void setQuickScaleEnabled (Object scaleGestureDetector, boolean enabled) ```
**This method was deprecated in API level 26.1.0.** Use[setQuickScaleEnabled(ScaleGestureDetector, boolean)](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat#setQuickScaleEnabled(android.view.ScaleGestureDetector, boolean))that takes[ScaleGestureDetector](https://developer.android.com/reference/android/view/ScaleGestureDetector.html)instead of[Object](https://developer.android.com/reference/java/lang/Object). Sets whether the associated[ScaleGestureDetector.OnScaleGestureListener](https://developer.android.com/reference/android/view/ScaleGestureDetector.OnScaleGestureListener.html)should receive onScale callbacks when the user performs a doubleTap followed by a swipe. Note that this is enabled by default if the app targets API 19 and newer.
| Parameters || |------------------------|------------------------------------------------------------------| | `scaleGestureDetector` | `Object`
| | `enabled` | `boolean`: true to enable quick scaling, false to disable
| - ## Annotations - [ViewPager.DecorView](https://developer.android.com/reference/android/support/v4/view/ViewPager.DecorView) - ## Interfaces - [ActionProvider.VisibilityListener](https://developer.android.com/reference/android/support/v4/view/ActionProvider.VisibilityListener) - [AsyncLayoutInflater.OnInflateFinishedListener](https://developer.android.com/reference/android/support/v4/view/AsyncLayoutInflater.OnInflateFinishedListener) - [LayoutInflaterFactory](https://developer.android.com/reference/android/support/v4/view/LayoutInflaterFactory) - [MenuItemCompat.OnActionExpandListener](https://developer.android.com/reference/android/support/v4/view/MenuItemCompat.OnActionExpandListener) - [NestedScrollingChild](https://developer.android.com/reference/android/support/v4/view/NestedScrollingChild) - [NestedScrollingChild2](https://developer.android.com/reference/android/support/v4/view/NestedScrollingChild2) - [NestedScrollingParent](https://developer.android.com/reference/android/support/v4/view/NestedScrollingParent) - [NestedScrollingParent2](https://developer.android.com/reference/android/support/v4/view/NestedScrollingParent2) - [OnApplyWindowInsetsListener](https://developer.android.com/reference/android/support/v4/view/OnApplyWindowInsetsListener) - [ScrollingView](https://developer.android.com/reference/android/support/v4/view/ScrollingView) - [TintableBackgroundView](https://developer.android.com/reference/android/support/v4/view/TintableBackgroundView) - [ViewPager.OnAdapterChangeListener](https://developer.android.com/reference/android/support/v4/view/ViewPager.OnAdapterChangeListener) - [ViewPager.OnPageChangeListener](https://developer.android.com/reference/android/support/v4/view/ViewPager.OnPageChangeListener) - [ViewPager.PageTransformer](https://developer.android.com/reference/android/support/v4/view/ViewPager.PageTransformer) - [ViewPropertyAnimatorListener](https://developer.android.com/reference/android/support/v4/view/ViewPropertyAnimatorListener) - [ViewPropertyAnimatorUpdateListener](https://developer.android.com/reference/android/support/v4/view/ViewPropertyAnimatorUpdateListener) - ## Classes - [AbsSavedState](https://developer.android.com/reference/android/support/v4/view/AbsSavedState) - [AccessibilityDelegateCompat](https://developer.android.com/reference/android/support/v4/view/AccessibilityDelegateCompat) - [ActionProvider](https://developer.android.com/reference/android/support/v4/view/ActionProvider) - [AsyncLayoutInflater](https://developer.android.com/reference/android/support/v4/view/AsyncLayoutInflater) - [GestureDetectorCompat](https://developer.android.com/reference/android/support/v4/view/GestureDetectorCompat) - [GravityCompat](https://developer.android.com/reference/android/support/v4/view/GravityCompat) - [InputDeviceCompat](https://developer.android.com/reference/android/support/v4/view/InputDeviceCompat) - [LayoutInflaterCompat](https://developer.android.com/reference/android/support/v4/view/LayoutInflaterCompat) - [MarginLayoutParamsCompat](https://developer.android.com/reference/android/support/v4/view/MarginLayoutParamsCompat) - [MenuCompat](https://developer.android.com/reference/android/support/v4/view/MenuCompat) - [MenuItemCompat](https://developer.android.com/reference/android/support/v4/view/MenuItemCompat) - [MotionEventCompat](https://developer.android.com/reference/android/support/v4/view/MotionEventCompat) - [NestedScrollingChildHelper](https://developer.android.com/reference/android/support/v4/view/NestedScrollingChildHelper) - [NestedScrollingParentHelper](https://developer.android.com/reference/android/support/v4/view/NestedScrollingParentHelper) - [PagerAdapter](https://developer.android.com/reference/android/support/v4/view/PagerAdapter) - [PagerTabStrip](https://developer.android.com/reference/android/support/v4/view/PagerTabStrip) - [PagerTitleStrip](https://developer.android.com/reference/android/support/v4/view/PagerTitleStrip) - [PointerIconCompat](https://developer.android.com/reference/android/support/v4/view/PointerIconCompat) - [ScaleGestureDetectorCompat](https://developer.android.com/reference/android/support/v4/view/ScaleGestureDetectorCompat) - [VelocityTrackerCompat](https://developer.android.com/reference/android/support/v4/view/VelocityTrackerCompat) - [ViewCompat](https://developer.android.com/reference/android/support/v4/view/ViewCompat) - [ViewConfigurationCompat](https://developer.android.com/reference/android/support/v4/view/ViewConfigurationCompat) - [ViewGroupCompat](https://developer.android.com/reference/android/support/v4/view/ViewGroupCompat) - [ViewPager](https://developer.android.com/reference/android/support/v4/view/ViewPager) - [ViewPager.LayoutParams](https://developer.android.com/reference/android/support/v4/view/ViewPager.LayoutParams) - [ViewPager.SavedState](https://developer.android.com/reference/android/support/v4/view/ViewPager.SavedState) - [ViewPager.SimpleOnPageChangeListener](https://developer.android.com/reference/android/support/v4/view/ViewPager.SimpleOnPageChangeListener) - [ViewParentCompat](https://developer.android.com/reference/android/support/v4/view/ViewParentCompat) - [ViewPropertyAnimatorCompat](https://developer.android.com/reference/android/support/v4/view/ViewPropertyAnimatorCompat) - [ViewPropertyAnimatorListenerAdapter](https://developer.android.com/reference/android/support/v4/view/ViewPropertyAnimatorListenerAdapter) - [WindowCompat](https://developer.android.com/reference/android/support/v4/view/WindowCompat) - [WindowInsetsCompat](https://developer.android.com/reference/android/support/v4/view/WindowInsetsCompat)