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Added in API level 24

AccessibilityService.MagnificationController.OnMagnificationChangedListener

public static interface AccessibilityService.MagnificationController.OnMagnificationChangedListener

android.accessibilityservice.AccessibilityService.MagnificationController.OnMagnificationChangedListener

听众对放大状态的改变。

摘要(Summary)

公共方法(Public methods)
abstract void onMagnificationChanged(AccessibilityService.MagnificationController controller, Region region, float scale, float centerX, float centerY)

当放大的区域，比例或中心发生变化时调用。

公共方法(Public methods)

onMagnificationChanged

Added in API level 24 
void onMagnificationChanged (AccessibilityService.MagnificationController controller, 
                Region region, 
                float scale, 
                float centerX, 
                float centerY)

当放大的区域，比例或中心发生变化时调用。

参数(Parameters)
controller AccessibilityService.MagnificationController: the magnification controller
region Region: the magnification region
scale float: the new scale
centerX float: the new X coordinate, in unscaled coordinates, around which magnification is focused
centerY float: the new Y coordinate, in unscaled coordinates, around which magnification is focused
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