开启硬件加速之后,许多2D的绘制方法会抛出异常

需要注意的方法如下:

 

In addition, some operations behave differently with hardware acceleration enabled:

 

如在Canvas.clipPath时会抛出异常

UnsupportedOperationException in GLES20Canvas.clipPath with hardware acceleration disabled on view

解决办法:在程序中通过反射禁掉硬件加速

private static Method getMethod(Class<?> clazz, String name, Class<?>... parameterTypes) {
                try {
                        return clazz.getMethod(name, parameterTypes);
                }
                catch (NoSuchMethodException e) {
                        return null;
                }
        }

        public static void disableHardwareAcceleration(View view) {
                try {
        Method setLayerTypeMethod = getMethod(View.class, "setLayerType", int.class,
                        Paint.class);

                        if (setLayerTypeMethod != null) {
                                int layerType = 1; // View.LAYER_TYPE_SOFTWARE
                                setLayerTypeMethod.invoke(view, layerType, null);
                        }
                }
                catch (Exception ignored) {
                }
        }





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