public void showSystemDialog(String showInfo, final int flag)

2 {

3 AlertDialog.Builder b = new AlertDialog.Builder(context);

4 b.setMessage(showInfo);

5 b.setPositiveButton("確定", new DialogInterface.OnClickListener()

6 {

7 public void onClick(DialogInterface dialog, int id)

8 {

9

10 switch (flag)

11 {

12 case 0:

13 Intent intent = new Intent(

14 Settings.ACTION_WIRELESS_SETTINGS);

15 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

16 context.startActivity(intent);

17 break;

18 case 1:

19

20 case 3: // 如果是GPRS,則提醒

21 if (moblieFlag == false)

22 {

23 moblieFlag = true;

24 }

25 default:

26 break;

27 }

28 d.dismiss();

29 }

30 }).setNegativeButton("取消", new DialogInterface.OnClickListener()

31 {

32 public void onClick(DialogInterface dialog, int id)

33 {

34 d.dismiss();

35 }

36 });

37 d = b.create();

38 d.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);

39 d.show();

40

41 WindowManager.LayoutParams lp = d.getWindow().getAttributes();

42 WindowManager wm = (WindowManager) context

43 .getSystemService(Context.WINDOW_SERVICE);

44 Display display = wm.getDefaultDisplay();

45 if (display.getHeight() > display.getWidth())

46 {

47 lp.width = (int) (display.getWidth() * 1.0);

48 }

49 else

50 {

51 lp.width = (int) (display.getWidth() * 0.5);

52 }

53 d.getWindow().setAttributes(lp);

54 }

注意：增加權限?

標簽：service,int,WindowManager,DialogInterface,alertdialog,lp,new,Android,display

來源： https://blog.csdn.net/lf12345678910/article/details/72724085

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