Android的不可变的位图崩溃错误 [英] Android Immutable bitmap crash error
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问题描述
java.lang.IllegalStateException: Immutable bitmap passed to Canvas constructor
at android.graphics.Canvas.<init>(Canvas.java:127)
at app.test.canvas.StartActivity.applyFrame(StartActivity.java:214)
at app.test.canvas.StartActivity$1.onClick(StartActivity.java:163)
at android.view.View.performClick(View.java:4223)
at android.view.View$PerformClick.run(View.java:17275)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4898)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
at dalvik.system.NativeStart.main(Native Method)
我从开发者控制台此崩溃的错误。我不明白是什么问题...
I get this crash error from the developer console .. I don't understand what is the problem ..
BitmapFactory.Options opt = new BitmapFactory.Options();
opt.inScaled = true;
opt.inPurgeable = true;
opt.inInputShareable = true;
Bitmap brightBitmap = BitmapFactory.decodeResource(getResources(), position, opt);
brightBitmap = Bitmap.createScaledBitmap(brightBitmap, 550, 550, false);
chosenFrame = brightBitmap;
Bitmap workingBitmap = Bitmap.createBitmap(chosenFrame);
workingBitmap = Bitmap.createBitmap(workingBitmap);
Canvas c = new Canvas(workingBitmap);
我认为这是与此相关的?
I think it's related to this ?
推荐答案
您需要将您的 workingBitmap
到可变位图
有关画布
。
Bitmap workingBitmap = Bitmap.createBitmap(chosenFrame);
Bitmap mutableBitmap = workingBitmap.copy(Bitmap.Config.ARGB_8888, true);
Canvas canvas = new Canvas(mutableBitmap);
这个答案可以帮助不浪费内存 转换不变的位图一个可变的位图
This answer helps don't waste memory Convert immutable bitmap to a mutable bitmap
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