android 跳转到应用通知设置界面的示例

 if (android.os.build.VERSION.SDK_INT >= Build.VERSION_CODEs.LOLLIPOp) {
          Intent intent = new Intent();
          intent.setAction("android.setTings.APP_NOTIFICATION_SETTinGS");
          intent.putExtra("app_package",getActivity().getPackagename());
          intent.putExtra("app_uid",getActivity().getApplicationInfo().uid);
          startActivity(intent);
        } else if (android.os.build.VERSION.SDK_INT == Build.VERSION_CODEs.KITKAT) {
          Intent intent = new Intent();
          intent.setAction(SetTings.ACTION_APPLICATION_DETAILS_SETTinGS);
          intent.addCategory(Intent.CATEGORY_DEFAULT);
          intent.setData(Uri.parse("package:" + getActivity().getPackagename()));
          startActivity(intent);
        }

 Intent localIntent = new Intent();
        localIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        if (Build.VERSION.SDK_INT >= 9) {
          localIntent.setAction("android.setTings.APPLICATION_DETAILS_SETTinGS");
          localIntent.setData(Uri.fromParts("package",getActivity().getPackagename(),null));
        } else if (Build.VERSION.SDK_INT <= 8) {
          localIntent.setAction(Intent.ACTION_VIEW);
          localIntent.setClassName("com.android.setTings","com.android.setTings.InstalledAppDetails");
          localIntent.putExtra("com.android.setTings.ApplicationPkgName",getActivity().getPackagename());
        }
        startActivity(localIntent);

notificationmanagerCompat manager = notificationmanagerCompat.from(App.geTinstance().getContext());
Boolean isOpened = manager.areNotificationsEnabled();