android截图 - 截取ContentView - 截取指定的View并且保存

getWindow().getDecorView().setDrawingCacheEnabled(true);
try {
File myCaptureFile = new File("/mnt/sdcard/"
+ System.currentTimeMillis() + ".jpg");
BufferedOutputStream bos = new BufferedOutputStream(
new FileOutputStream(myCaptureFile));
getWindow().getDecorView().getDrawingCache()
.compress(Bitmap.CompressFormat.JPEG, 80, bos);
bos.flush();
bos.close();
} catch (Exception e) {
e.printStackTrace();
}
getWindow().getDecorView().setDrawingCacheEnabled(false);

view.setDrawingCacheEnabled(true);
try {
File myCaptureFile = new File("/mnt/sdcard/"
+ System.currentTimeMillis() + ".jpg");
BufferedOutputStream bos = new BufferedOutputStream(
new FileOutputStream(myCaptureFile));
view.getDrawingCache()
.compress(Bitmap.CompressFormat.JPEG, 80, bos);
bos.flush();
bos.close();
} catch (Exception e) {
e.printStackTrace();
}
view().setDrawingCacheEnabled(false);

/**
* 页面返回动画
*/
private void gobackAnimation(){
getWindow().getDecorView().setDrawingCacheEnabled(true);
Bitmap bm = getWindow().getDecorView().getDrawingCache();
Rect rect = new Rect();
getWindow().getDecorView().getWindowVisibleDisplayFrame(rect);
final Bitmap bitmap = Bitmap.createBitmap(bm, 0, rect.top, Device.getScreenWidth(), Device.getScreenHeight() - rect.top);;
bm.recycle();
final ImageView imageView = new ImageView(ActivityOnlineAndUser.this);
imageView.setScaleType(ScaleType.FIT_XY);
imageView.setImageBitmap(bitmap);
getWindow().addContentView(imageView, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.MATCH_PARENT));
Animation anim = AnimationUtils.loadAnimation(ActivityOnlineAndUser.this, R.anim.push_right_out);
anim.setAnimationListener(new AnimationListener() {

@Override
public void onAnimationStart(Animation animation) {

}

@Override
public void onAnimationRepeat(Animation animation) {

}

@Override
public void onAnimationEnd(Animation animation) {
// 回收资源
imageView.setImageBitmap(null);
bitmap.recycle();
((ViewGroup)imageView.getParent()).removeView(imageView);
// 设置成False，否则会很浪费性能
getWindow().getDecorView().setDrawingCacheEnabled(false);
}
});
imageView.startAnimation(anim);
}