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[操作系统]android 6.0获取 WRITE_SETTINGS 权限

android 6.0上只写在AndroidManifest中是不行的,还必须手动打开才行  private void setBrightnessMode(Context context, int mode) {    try {      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {        if (Settings.System.canWrite(context)) {          Settings.System.putInt(context.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS_MODE, mode);        } else {          Intent intent = new Intent(android.provider.Settings.ACTION_MANAGE_WRITE_SETTINGS);          intent.setData(Uri.parse("package:" + context.getPackageName()));          intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);          context.startActivity(intent);        }      } else {        Settings.System.putInt(context.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS_MODE, mode);      }    } catch (Exception e) {      e.printStackTrace();    }  }