android app通知欄權限狀態判斷及跳轉狀態欄設置頁面

import android.app.NotificationManager;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.provider.Settings;
import android.support.v4.app.NotificationManagerCompat;

/**
 * Created by chenxiangxiang on 2019/1/16.
 */

public class Utils {

    public static boolean isPermissionOpen(Context context) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            return NotificationManagerCompat.from(context).getImportance() != NotificationManager.IMPORTANCE_NONE;
        }
        return NotificationManagerCompat.from(context).areNotificationsEnabled();
    }

    public static void openPermissionSetting(Context context) {
        try {
            Intent localIntent = new Intent();
            localIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            //直接跳轉到應用通知設置的代碼：
            if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                localIntent.setAction(Settings.ACTION_APP_NOTIFICATION_SETTINGS);
                localIntent.putExtra(Settings.EXTRA_APP_PACKAGE, context.getPackageName());
                context.startActivity(localIntent);
                return;
            }
            if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                localIntent.setAction("android.settings.APP_NOTIFICATION_SETTINGS");
                localIntent.putExtra("app_package", context.getPackageName());
                localIntent.putExtra("app_uid", context.getApplicationInfo().uid);
                context.startActivity(localIntent);
                return;
            }
            if (android.os.Build.VERSION.SDK_INT == Build.VERSION_CODES.KITKAT) {
                localIntent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                localIntent.addCategory(Intent.CATEGORY_DEFAULT);
                localIntent.setData(Uri.parse("package:" + context.getPackageName()));
                context.startActivity(localIntent);
                return;
            }

            //4.4如下沒有從app跳轉到應用通知設置頁面的Action，可考慮跳轉到應用詳情頁面,

            if (Build.VERSION.SDK_INT >= 9) {
                localIntent.setAction("android.settings.APPLICATION_DETAILS_SETTINGS");
                localIntent.setData(Uri.fromParts("package", context.getPackageName(), null));
                context.startActivity(localIntent);
                return;
            }

            localIntent.setAction(Intent.ACTION_VIEW);
            localIntent.setClassName("com.android.settings", "com.android.setting.InstalledAppDetails");
            localIntent.putExtra("com.android.settings.ApplicationPkgName", context.getPackageName());


        } catch (Exception e) {
            e.printStackTrace();
            System.out.println(" cxx   pushPermission 有問題");
        }
    }
}