java.lang.RuntimeException: Failed to extractAlpha on Bitmap

[zhengxiaopeng]

extractAlpha on bitmap

stacktrace:

java.lang.RuntimeException: Failed to extractAlpha on Bitmap

	at android.graphics.Bitmap.extractAlpha(Bitmap.java:1512)
	at android.graphics.Bitmap.extractAlpha(Bitmap.java:1479)
	//...
	at android.app.Activity.performCreate(Activity.java:5243)
	at org.robolectric.util.ReflectionHelpers.callInstanceMethod(ReflectionHelpers.java:195)
	at org.robolectric.util.ActivityController$1.run(ActivityController.java:126)
	at org.robolectric.shadows.ShadowLooper.runPaused(ShadowLooper.java:356)
	at org.robolectric.shadows.CoreShadowsAdapter$2.runPaused(CoreShadowsAdapter.java:40)
	at org.robolectric.util.ActivityController.create(ActivityController.java:123)
	at org.robolectric.util.ActivityController.create(ActivityController.java:133)
	at org.robolectric.util.ActivityController.setup(ActivityController.java:227)
	at org.robolectric.Robolectric.setupActivity(Robolectric.java:102)
	at com.xxx.xxx.xxx.testXXX(XXX.java:39)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.robolectric.RobolectricTestRunner$HelperTestRunner$1.evaluate(RobolectricTestRunner.java:498)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:245)
	at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:171)
	at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:47)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:137)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:119)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)

Steps to Reproduce

        //1. setup activity
        Robolectric.setupActivity(MyActivity.class);
        //2. extractAlpha in MyActivity's onCreate method
        Bitmap bmp = BitmapFactory.decodeResource(context.getResources(),id);
        Bitmap mAlphaBitmap = Bitmap.createBitmap(bmp.getWidth(), bmp.getHeight(), Config.ARGB_8888);
        Canvas mCanvas = new Canvas(mAlphaBitmap);
        Paint mPaint = new Paint();
        mPaint.setColor(mColor);
        Bitmap alphaBitmap = bmp.extractAlpha();
        mCanvas.drawBitmap(alphaBitmap, 0, 0, mPaint);

Robolectric & Android Version

testCompile 'org.robolectric:robolectric:3.1.2'
testCompile 'org.robolectric:shadows-support-v4:3.1.2'
Build.VERSION_CODES.KITKAT(19)

[jongerrish]

Have an fix for this as part of forthcoming fix for #4028

[jongerrish]

1c1fe55