Graphics-Layers

Graphics-----Layers

private static final int LAYER_FLAGS = Canvas.MATRIX_SAVE_FLAG |
??????????????????????????????????????????? Canvas.CLIP_SAVE_FLAG |
??????????????????????????????????????????? Canvas.HAS_ALPHA_LAYER_SAVE_FLAG |
??????????????????????????????????????????? Canvas.FULL_COLOR_LAYER_SAVE_FLAG |
??????????????????????????????????????????? Canvas.CLIP_TO_LAYER_SAVE_FLAG;

canvas.saveLayerAlpha(0, 0, 200, 200, 0x88, LAYER_FLAGS);


1.不懂 LAYER_FLAGS 参数的意思。。。

下次找到再补。。。。。。。。。。。。。

2. restore()， save()的用途

save() 保存一个还原点? restore() 恢复到上一个还原点？？？


3. setFocusable(true);
??? setFocusableInTouchMode(true);

一般都有这两个方法。

?