uniapp获取手机通知权限实现demo

//首先我们需要一个触发，我是在进入页面onReady()生命周期中触发的检测
getQuanxian() {
                let platform = uni.getSystemInfoSync().platform; //首先判断app是安卓还是ios
                console.log(platform);
                if (platform == "ios") { //这里是ios的方法
                    console.log("我是iOS");
                    var UIApplication = plus.ios.import("UIApplication");
                    var app = UIApplication.sharedApplication();
                    var enabledTypes = 0;
                    if (app.currentUserNotificationSettings) {
                        var settings = app.currentUserNotificationSettings();
                        enabledTypes = settings.plusGetAttribute("types");
                        console.log("enabledTypes1:" + enabledTypes);
                        if (enabledTypes == 0) { //如果enabledTypes = 0 就是通知权限没有开启
                            this.tongzhi = true; //这里是我写的一个弹窗上面有一个跳转开启的按钮，自行添加即可
                        }
                    }
                    plus.ios.deleteObject(settings);
                } else if (platform == "android") { //下面是安卓的方法
                    console.log("我是安卓", plus.android);
                    var main = plus.android.runtimeMainActivity();
                    var pkName = main.getPackageName();
                    var uid = main.getApplicationInfo().plusGetAttribute("uid");
                    var NotificationManagerCompat = plus.android.importClass(
                        "android.support.v4.app.NotificationManagerCompat"
                    );
                    //android.support.v4升级为androidx
                    if (NotificationManagerCompat == null) {
                        NotificationManagerCompat = plus.android.importClass(
                            "androidx.core.app.NotificationManagerCompat"
                        );
                    }
                    var areNotificationsEnabled =
                        NotificationManagerCompat.from(main).areNotificationsEnabled();
                    // 未开通‘允许通知'权限，则弹窗提醒开通，并点击确认后，跳转到系统设置页面进行设置
                    if (!areNotificationsEnabled) {
                        this.tongzhi = true; //这里也一样未开启权限，弹出弹窗
                    }
                }
            },

            //开启通知
            openTongZhi() { //弹窗按钮绑定方法
                let platform = uni.getSystemInfoSync().platform; //获取安卓还是ios
                this.tongzhi = false;
                if (platform == "ios") {//如果机型是ios，ios由于权限问题，可能需要手动开启
                    var UIApplication = plus.ios.import("UIApplication");
                    var app = UIApplication.sharedApplication();
                    var settings = app.currentUserNotificationSettings();
                    enabledTypes = settings.plusGetAttribute("types");
                    var NSURL2 = plus.ios.import("NSURL");
                    var setting2 = NSURL2.URLWithString("app-settings:");
                    var application2 = UIApplication.sharedApplication();
                    application2.openURL(setting2);
                    plus.ios.deleteObject(setting2);
                    plus.ios.deleteObject(NSURL2);
                    plus.ios.deleteObject(application2);
                    plus.ios.deleteObject(settings);
                } else if (platform == "android") {//如果机型是安卓
                    var main = plus.android.runtimeMainActivity();
                    var pkName = main.getPackageName();
                    var uid = main.getApplicationInfo().plusGetAttribute("uid");
                    var Intent = plus.android.importClass("android.content.Intent");
                    var Build = plus.android.importClass("android.os.Build");
                    //android 8.0引导
                    if (Build.VERSION.SDK_INT >= 26) { //判断安卓系统版本
                        var intent = new Intent("android.settings.APP_NOTIFICATION_SETTINGS");
                        intent.putExtra("android.provider.extra.APP_PACKAGE", pkName);
                    } else if (Build.VERSION.SDK_INT >= 21) { //判断安卓系统版本
                        //android 5.0-7.0
                        var intent = new Intent("android.settings.APP_NOTIFICATION_SETTINGS");
                        intent.putExtra("app_package", pkName);
                        intent.putExtra("app_uid", uid);
                    } else {
                        //(<21)其他--跳转到该应用管理的详情页
                        intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                        var uri = Uri.fromParts(
                            "package",
                            mainActivity.getPackageName(),
                            null
                        );
                        intent.setData(uri);
                    }
                    // 跳转到该应用的系统通知设置页
                    main.startActivity(intent);
                }
            },