釋放雙眼，帶上耳機，聽聽看~！

截取DecorView

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);

截取指定的View

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);

截取不包括狀態欄的部分

/**

* 頁面返回動畫

*/

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) {

// 回收資源

imageView.setImageBitmap(null);

bitmap.recycle();

((ViewGroup)imageView.getParent()).removeView(imageView);

// 設置成False，否則會很浪費性能

getWindow().getDecorView().setDrawingCacheEnabled(false);

}

});

imageView.startAnimation(anim);

}

總結

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