uniapp打开手机通知权限设置

/**
 * 设置手机通知权限
 */
function setPermissions() {
	// #ifdef APP-PLUS  
	if (plus.os.name == 'Android') { // 判断是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) {
			uni.showModal({
				title: '通知权限开启提醒',
				content: '您还没有开启通知权限，无法接受到消息通知，请前往设置！',
				showCancel: false,
				confirmText: '去设置',
				success: function(res) {
					if (res.confirm) {
						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) {
							var intent = new Intent('android.settings.APP_NOTIFICATION_SETTINGS');
							intent.putExtra('android.provider.extra.APP_PACKAGE', pkName);
						} else if (Build.VERSION.SDK_INT >= 21) { //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);
					}
				}
			});
		}
	} else if (plus.os.name == 'iOS') { // 判断是ISO
		var isOn = undefined;
		var types = 0;
		var app = plus.ios.invoke('UIApplication', 'sharedApplication');
		var settings = plus.ios.invoke(app, 'currentUserNotificationSettings');
		if (settings) {
			types = settings.plusGetAttribute('types');
			plus.ios.deleteObject(settings);
		} else {
			types = plus.ios.invoke(app, 'enabledRemoteNotificationTypes');
		}
		plus.ios.deleteObject(app);
		isOn = (0 != types);
		if (isOn == false) {
			uni.showModal({
				title: '通知权限开启提醒',
				content: '您还没有开启通知权限，无法接受到消息通知，请前往设置！',
				showCancel: false,
				confirmText: '去设置',
				success: function(res) {
					if (res.confirm) {
						var app = plus.ios.invoke('UIApplication', 'sharedApplication');
						var setting = plus.ios.invoke('NSURL', 'URLWithString:', 'app-settings:');
						plus.ios.invoke(app, 'openURL:', setting);
						plus.ios.deleteObject(setting);
						plus.ios.deleteObject(app);
					}
				}
			});
		}
	}
	// #endif  
}

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原文链接：https://blog.csdn.net/D_lunar/article/details/115694296