diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java index 6ee6d637bf797..d8eb950afc225 100644 --- a/core/java/android/view/View.java +++ b/core/java/android/view/View.java @@ -4462,6 +4462,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback, sIgnoreMeasureCache = targetSdkVersion < Build.VERSION_CODES.KITKAT; Canvas.sCompatibilityRestore = targetSdkVersion < Build.VERSION_CODES.M; + Canvas.sCompatibilitySetBitmap = targetSdkVersion < Build.VERSION_CODES.O; // In M and newer, our widgets can pass a "hint" value in the size // for UNSPECIFIED MeasureSpecs. This lets child views of scrolling containers diff --git a/graphics/java/android/graphics/Canvas.java b/graphics/java/android/graphics/Canvas.java index 2a2e14b2df6df..0301f2e6b5556 100644 --- a/graphics/java/android/graphics/Canvas.java +++ b/graphics/java/android/graphics/Canvas.java @@ -49,6 +49,8 @@ import javax.microedition.khronos.opengles.GL; public class Canvas extends BaseCanvas { /** @hide */ public static boolean sCompatibilityRestore = false; + /** @hide */ + public static boolean sCompatibilitySetBitmap = false; /** @hide */ public long getNativeCanvasWrapper() { @@ -172,6 +174,11 @@ public class Canvas extends BaseCanvas { throw new RuntimeException("Can't set a bitmap device on a HW accelerated canvas"); } + Matrix preservedMatrix = null; + if (bitmap != null && sCompatibilitySetBitmap) { + preservedMatrix = getMatrix(); + } + if (bitmap == null) { nSetBitmap(mNativeCanvasWrapper, null); mDensity = Bitmap.DENSITY_NONE; @@ -185,6 +192,10 @@ public class Canvas extends BaseCanvas { mDensity = bitmap.mDensity; } + if (preservedMatrix != null) { + setMatrix(preservedMatrix); + } + mBitmap = bitmap; }