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我的應用程序中啓用了硬件加速,但我已禁用它的一個我的意見,因爲我有筆畫上限和其他問題的問題。GLES20Canvas.clipPath中的UnsupportedOperationException在硬件加速被禁用的情況下
現在我得到的谷歌該堆棧跟蹤播放機錯誤控制檯:
java.lang.UnsupportedOperationException
at android.view.GLES20Canvas.clipPath(GLES20Canvas.java:287)
at com.myapp.MyCustomView.onDraw(SourceFile:288)
at android.view.View.draw(View.java:9310)
at android.view.View.getDisplayList(View.java:8773)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:2298)
...
at android.view.HardwareRenderer$GlRenderer.draw(HardwareRenderer.java:609)
at android.view.ViewRoot.draw(ViewRoot.java:1634)
at android.view.ViewRoot.performTraversals(ViewRoot.java:1450)
at android.view.ViewRoot.handleMessage(ViewRoot.java:2094)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:132)
at android.app.ActivityThread.main(ActivityThread.java:4123)
...
我已經在AndroidManifest.xml中指定android:hardwareAccelerated="true"
。但在我的自定義視圖的構造我專門禁用硬件加速:
public MyCustomView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// ... code omitted
// disable acceleration because Paint.setStrokeCap(Cap.ROUND) is not working otherwise
Compatibility.disableHardwareAcceleration(this);
}
兼容性是這樣的:
public class Compatibility {
// View.setLayerType() was introduced in Honeycomb
private static Method setLayerTypeMethod = getMethod(View.class, "setLayerType", int.class,
Paint.class);
private static Method getMethod(Class<?> clazz, String name, Class<?>... parameterTypes) {
try {
return clazz.getMethod(name, parameterTypes);
}
catch (NoSuchMethodException e) {
return null;
}
}
private Compatibility() {
}
public static void disableHardwareAcceleration(View view) {
try {
if (setLayerTypeMethod != null) {
int layerType = 1; // View.LAYER_TYPE_SOFTWARE
setLayerTypeMethod.invoke(view, layerType, null);
}
}
catch (Exception ignored) {
}
}
}
不幸的是,當機錯誤控制檯沒有透露有關Android操作系統版本或設備信息。
任何想法可能會發生什麼?