Package org.robolectric.shadows

Class ShadowNativeCanvas

java.lang.Object

org.robolectric.shadows.ShadowCanvas

org.robolectric.shadows.ShadowNativeBaseCanvas

org.robolectric.shadows.ShadowNativeCanvas

Direct Known Subclasses:

ShadowNativeBaseRecordingCanvas, ShadowNativeRecordingCanvasOP

@Implements(value=android.graphics.Canvas.class,
            minSdk=26,
            isInAndroidSdk=false,
            callNativeMethodsByDefault=true)
public class ShadowNativeCanvas
extends ShadowNativeBaseCanvas

Shadow for Canvas that is backed by native code

Nested Class Summary

Nested classes/interfaces inherited from class org.robolectric.shadows.ShadowNativeBaseCanvas

ShadowNativeBaseCanvas.Picker

Nested classes/interfaces inherited from class org.robolectric.shadows.ShadowCanvas

ShadowCanvas.ArcPaintHistoryEvent, ShadowCanvas.CirclePaintHistoryEvent, ShadowCanvas.LinePaintHistoryEvent, ShadowCanvas.OvalPaintHistoryEvent, ShadowCanvas.RectPaintHistoryEvent, ShadowCanvas.RoundRectPaintHistoryEvent, ShadowCanvas.TextHistoryEvent

Constructor Summary

Constructors

Constructor	Description
ShadowNativeCanvas()

Method Summary

Modifier and Type	Method	Description
protected static boolean	nClipPath(long nativeCanvas, long nativePath, int regionOp)
protected static boolean	nClipRect(long nativeCanvas, float left, float top, float right, float bottom, int regionOp)
protected static void	nConcat(long nativeCanvas, long nativeMatrix)
protected static void	nFreeCaches()
protected static void	nFreeTextLayoutCaches()
protected static boolean	nGetClipBounds(long nativeCanvas, Rect bounds)
protected static int	nGetHeight(long canvasHandle)
protected static void	nGetMatrix(long nativeCanvas, long nativeMatrix)
protected static long	nGetNativeFinalizer()
protected static int	nGetSaveCount(long canvasHandle)
protected static int	nGetWidth(long canvasHandle)
protected static long	nInitRaster(long bitmapHandle)
protected static long	nInitRaster(Bitmap bitmap)
protected static boolean	nIsOpaque(long canvasHandle)
protected static boolean	nQuickReject(long nativeCanvas, float left, float top, float right, float bottom)
protected static boolean	nQuickReject(long nativeCanvas, long nativePath)
protected static boolean	nRestore(long canvasHandle)
protected static void	nRestoreToCount(long canvasHandle, int saveCount)
protected static void	nRestoreUnclippedLayer(long nativeCanvas, int saveCount, long nativePaint)
protected static void	nRotate(long canvasHandle, float degrees)
protected static int	nSave(long canvasHandle, int saveFlags)
protected static int	nSaveLayer(long nativeCanvas, float l, float t, float r, float b, long nativePaint)
protected static int	nSaveLayer(long nativeCanvas, float l, float t, float r, float b, long nativePaint, int layerFlags)
protected static int	nSaveLayerAlpha(long nativeCanvas, float l, float t, float r, float b, int alpha)
protected static int	nSaveLayerAlpha(long nativeCanvas, float l, float t, float r, float b, int alpha, int layerFlags)
protected static int	nSaveUnclippedLayer(long nativeCanvas, int l, int t, int r, int b)
protected static void	nScale(long canvasHandle, float sx, float sy)
protected static void	nSetBitmap(long canvasHandle, long bitmapHandle)
protected static void	nSetBitmap(long canvasHandle, Bitmap bitmap)
protected static void	nSetCompatibilityVersion(int apiLevel)
protected static void	nSetDrawFilter(long nativeCanvas, long nativeFilter)
protected static void	nSetMatrix(long nativeCanvas, long nativeMatrix)
protected static void	nSkew(long canvasHandle, float sx, float sy)
protected static void	nTranslate(long canvasHandle, float dx, float dy)
protected int	saveUnclippedLayer(int left, int top, int right, int bottom)	In Android P and below, Canvas.saveUnclippedLayer called nSaveLayer(long, float, float, float, float, long).

Methods inherited from class org.robolectric.shadows.ShadowNativeBaseCanvas

appendDescription, getArcPaintHistoryCount, getCirclePaintHistoryCount, getDescription, getDrawnArc, getDrawnCircle, getDrawnLine, getDrawnOval, getDrawnPaint, getDrawnPath, getDrawnPathPaint, getDrawnRect, getDrawnRoundRect, getDrawnTextEvent, getLastDrawnRect, getLastDrawnRoundRect, getLinePaintHistoryCount, getOvalPaintHistoryCount, getPathPaintHistoryCount, getRectPaintHistoryCount, getRoundRectPaintHistoryCount, getTextHistoryCount, hasDrawnCircle, hasDrawnPath, nDrawArc, nDrawBitmap, nDrawBitmap, nDrawBitmap, nDrawBitmap, nDrawBitmap, nDrawBitmapMatrix, nDrawBitmapMatrix, nDrawBitmapMesh, nDrawBitmapMesh, nDrawCircle, nDrawColor, nDrawColor, nDrawDoubleRoundRect, nDrawDoubleRoundRect, nDrawGlyphs, nDrawLine, nDrawLines, nDrawNinePatch, nDrawOval, nDrawPaint, nDrawPath, nDrawPoint, nDrawPoints, nDrawRect, nDrawRegion, nDrawRoundRect, nDrawText, nDrawText, nDrawText, nDrawText, nDrawTextOnPath, nDrawTextOnPath, nDrawTextOnPath, nDrawTextOnPath, nDrawTextRun, nDrawTextRun, nDrawTextRun, nDrawVertices, nPunchHole, nPunchHole, resetCanvasHistory, setHeight, setWidth

Methods inherited from class org.robolectric.shadows.ShadowCanvas

visualize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ShadowNativeCanvas

public ShadowNativeCanvas()

Method Details

nFreeCaches

@Implementation(minSdk=26,
                maxSdk=34)
protected static void nFreeCaches()

nFreeTextLayoutCaches

@Implementation(minSdk=26,
                maxSdk=34)
protected static void nFreeTextLayoutCaches()

nGetNativeFinalizer

@Implementation(minSdk=26,
                maxSdk=34)
protected static long nGetNativeFinalizer()

nSetCompatibilityVersion

@Implementation(minSdk=28,
                maxSdk=34)
protected static void nSetCompatibilityVersion(int apiLevel)

nInitRaster

@Implementation(minSdk=26,
                maxSdk=28)
protected static long nInitRaster(Bitmap bitmap)

nInitRaster

@Implementation(minSdk=29,
                maxSdk=34)
protected static long nInitRaster(long bitmapHandle)

nSetBitmap

@Implementation(minSdk=26,
                maxSdk=28)
protected static void nSetBitmap(long canvasHandle,
 Bitmap bitmap)

nSetBitmap

@Implementation(minSdk=29,
                maxSdk=34)
protected static void nSetBitmap(long canvasHandle,
 long bitmapHandle)

nGetClipBounds

@Implementation(minSdk=26,
                maxSdk=34)
protected static boolean nGetClipBounds(long nativeCanvas,
 Rect bounds)

nIsOpaque

@Implementation(minSdk=26,
                maxSdk=34)
protected static boolean nIsOpaque(long canvasHandle)

nGetWidth

@Implementation(minSdk=26,
                maxSdk=34)
protected static int nGetWidth(long canvasHandle)

nGetHeight

@Implementation(minSdk=26,
                maxSdk=34)
protected static int nGetHeight(long canvasHandle)

nSave

@Implementation(minSdk=26,
                maxSdk=34)
protected static int nSave(long canvasHandle,
 int saveFlags)

nSaveLayer

@Implementation(minSdk=31,
                maxSdk=34)
protected static int nSaveLayer(long nativeCanvas,
 float l,
 float t,
 float r,
 float b,
 long nativePaint)

nSaveLayer

@Implementation(minSdk=26,
                maxSdk=30)
protected static int nSaveLayer(long nativeCanvas,
 float l,
 float t,
 float r,
 float b,
 long nativePaint,
 int layerFlags)

nSaveLayerAlpha

@Implementation(minSdk=31,
                maxSdk=34)
protected static int nSaveLayerAlpha(long nativeCanvas,
 float l,
 float t,
 float r,
 float b,
 int alpha)

nSaveLayerAlpha

@Implementation(minSdk=26,
                maxSdk=30)
protected static int nSaveLayerAlpha(long nativeCanvas,
 float l,
 float t,
 float r,
 float b,
 int alpha,
 int layerFlags)

nSaveUnclippedLayer

@Implementation(minSdk=29,
                maxSdk=34)
protected static int nSaveUnclippedLayer(long nativeCanvas,
 int l,
 int t,
 int r,
 int b)

nRestoreUnclippedLayer

@Implementation(minSdk=29,
                maxSdk=34)
protected static void nRestoreUnclippedLayer(long nativeCanvas,
 int saveCount,
 long nativePaint)

nRestore

@Implementation(minSdk=26,
                maxSdk=34)
protected static boolean nRestore(long canvasHandle)

nRestoreToCount

@Implementation(minSdk=26,
                maxSdk=34)
protected static void nRestoreToCount(long canvasHandle,
 int saveCount)

nGetSaveCount

@Implementation(minSdk=26,
                maxSdk=34)
protected static int nGetSaveCount(long canvasHandle)

nTranslate

@Implementation(minSdk=26,
                maxSdk=34)
protected static void nTranslate(long canvasHandle,
 float dx,
 float dy)

nScale

@Implementation(minSdk=26,
                maxSdk=34)
protected static void nScale(long canvasHandle,
 float sx,
 float sy)

nRotate

@Implementation(minSdk=26,
                maxSdk=34)
protected static void nRotate(long canvasHandle,
 float degrees)

nSkew

@Implementation(minSdk=26,
                maxSdk=34)
protected static void nSkew(long canvasHandle,
 float sx,
 float sy)

nConcat

@Implementation(minSdk=26,
                maxSdk=34)
protected static void nConcat(long nativeCanvas,
 long nativeMatrix)

nSetMatrix

@Implementation(minSdk=26,
                maxSdk=34)
protected static void nSetMatrix(long nativeCanvas,
 long nativeMatrix)

nClipRect

@Implementation(minSdk=26,
                maxSdk=34)
protected static boolean nClipRect(long nativeCanvas,
 float left,
 float top,
 float right,
 float bottom,
 int regionOp)

nClipPath

@Implementation(minSdk=26,
                maxSdk=34)
protected static boolean nClipPath(long nativeCanvas,
 long nativePath,
 int regionOp)

nSetDrawFilter

@Implementation(minSdk=26,
                maxSdk=34)
protected static void nSetDrawFilter(long nativeCanvas,
 long nativeFilter)

nGetMatrix

@Implementation(minSdk=26,
                maxSdk=34)
protected static void nGetMatrix(long nativeCanvas,
 long nativeMatrix)

nQuickReject

@Implementation(minSdk=26,
                maxSdk=34)
protected static boolean nQuickReject(long nativeCanvas,
 long nativePath)

nQuickReject

@Implementation(minSdk=26,
                maxSdk=34)
protected static boolean nQuickReject(long nativeCanvas,
 float left,
 float top,
 float right,
 float bottom)

saveUnclippedLayer

@Implementation(minSdk=28,
                maxSdk=28)
protected int saveUnclippedLayer(int left,
 int top,
 int right,
 int bottom)

In Android P and below, Canvas.saveUnclippedLayer called nSaveLayer(long, float, float, float, float, long).

However, in Android Q, a new native method was added specifically to save unclipped layers. Use this new method to fix things like ScrollView fade effects in P and below.