Android开发实现判断通知栏是否打开及前往设置页面的方法

private boolean isNotificationEnabled(Context context) {    String CHECK_OP_NO_THROW = "checkOpNoThrow";    String OP_POST_NOTIFICATION = "OP_POST_NOTIFICATION";    AppOpsManager mAppOps = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);    ApplicationInfo appInfo = context.getApplicationInfo();    String pkg = context.getApplicationContext().getPackageName();    int uid = appInfo.uid;    Class appOpsClass = null;   /* Context.APP_OPS_MANAGER */    try {      appOpsClass = Class.forName(AppOpsManager.class.getName());      Method checkOpNoThrowMethod = appOpsClass.getMethod(CHECK_OP_NO_THROW, Integer.TYPE, Integer.TYPE,          String.class);      Field opPostNotificationValue = appOpsClass.getDeclaredField(OP_POST_NOTIFICATION);      int value = (Integer) opPostNotificationValue.get(Integer.class);      return ((Integer) checkOpNoThrowMethod.invoke(mAppOps, value, uid, pkg) == AppOpsManager.MODE_ALLOWED);    } catch (ClassNotFoundException e) {      e.printStackTrace();    } catch (NoSuchMethodException e) {      e.printStackTrace();    } catch (NoSuchFieldException e) {      e.printStackTrace();    } catch (InvocationTargetException e) {      e.printStackTrace();    } catch (IllegalAccessException e) {      e.printStackTrace();    }    return false;}

private void goToSet(){    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.BASE) {      // 进入设置系统应用权限界面      Intent intent = new Intent(Settings.ACTION_SETTINGS);      startActivity(intent);      return;    } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {// 运行系统在5.x环境使用      // 进入设置系统应用权限界面      Intent intent = new Intent(Settings.ACTION_SETTINGS);      startActivity(intent);      return;    }}