android - 如何在 Android 中最小化 Activity 时关闭 GPS？

Question

public boolean onKeyDown(int keyCode, KeyEvent event){
     if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0){
      Context context = getActivity();
         String provider = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
        if (provider.contains("gps")){  
        final Intent poke = new Intent();
        poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
        poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
        poke.setData(Uri.parse("3")); 
        context.sendBroadcast(poke);
        }     
     }
    return super.onKeyDown(keyCode, event);
}

我做了一些代码，但它不能禁用 GPS。如果您有代码请分享，我希望在应用程序最小化或关闭时关闭 GPS，当应用程序启动时它会自动打开 GPS，我打开了它但无法关闭..

Answer 1

启用和禁用 GPS 掌握在用户手中。您可以向他显示一个对话框，通知他有关禁用 GPS 的信息。在这种情况下，在对话框上保留两个按钮 - 一个用于“设置”，另一个用于“确定”或“取消”。
像这样的东西:

public static void promptForGPS(
        final Activity activity)
    {
        final AlertDialog.Builder builder =
            new AlertDialog.Builder(activity);
        final String action = Settings.ACTION_LOCATION_SOURCE_SETTINGS;
        final String message = "Disable GPS....Message here"
            + " service to find current location.  Click OK to go to"
            + " location services settings to let you do so.";

        builder.setMessage(message)
            .setPositiveButton("OK",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface d, int id) {
                        activity.startActivity(new Intent(action));
                        d.dismiss();
                    }
            })
            .setNegativeButton("Cancel",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface d, int id) {
                        d.cancel();
                    }
            });
        builder.create().show();
    }  

进一步引用:
Android activate gps with AlertDialog: how to wait for the user to take action?