popupWindow弹出来后，背景变暗,半透明
1 /**
2 * 点击评分，如果评分后，显示的弹出框
3 */
4 private void showMakeGradeMarkedWindow() {
5 View view = LayoutInflater.from(DetailActivity.this).inflate(
6 R.layout.grade_screen_marked, null);
7 final PopupWindow mPopupWindow = new PopupWindow(view, 469, 280);
8 mPopupWindow.setFocusable(true);
9 ColorDrawable dw = new ColorDrawable(0xb0000000);
10 mPopupWindow.setBackgroundDrawable(dw);
11 mPopupWindow.showAtLocation(install, Gravity.CENTER, 0, 0);
12
13 final RatingBar mraRatingBar = (RatingBar) view
14 .findViewById(R.id.grade_screen);
15 mraRatingBar.setRating(4.5f);
16 // mraRatingBar.setEnabled(false);
17 // 设置背景颜色变暗
18 WindowManager.LayoutParams lp = getWindow().getAttributes();
19 lp.alpha = 0.7f;
20 getWindow().setAttributes(lp);
21 mPopupWindow.setOnDismissListener(new OnDismissListener() {
22
23 @Override
24 public void onDismiss() {
25 WindowManager.LayoutParams lp = getWindow().getAttributes();
26 lp.alpha = 1f;
27 getWindow().setAttributes(lp);
28 }
29 });
30
31 }
当popupWindow消失后，监听其消失的方法，让背景恢复原样。
