Android 判断当前应用是否开启消息通知

NotificationUtil.kt

object NotificationUtil {/*** 打开手机设置页面* @param context Context*/fun setNotification(context: Context) {val enabled = isNotificationEnabled(context)if (!enabled) {val localIntent = Intent()if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {localIntent.action = Settings.ACTION_APP_NOTIFICATION_SETTINGSlocalIntent.putExtra(Settings.EXTRA_APP_PACKAGE, context.packageName)localIntent.putExtra("app_uid", context.applicationInfo.uid)} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {localIntent.action = "android.settings.APP_NOTIFICATION_SETTINGS"localIntent.putExtra("app_package", context.packageName)localIntent.putExtra("app_uid", context.applicationInfo.uid)} else if (Build.VERSION.SDK_INT == Build.VERSION_CODES.KITKAT) {localIntent.action = Settings.ACTION_APPLICATION_DETAILS_SETTINGSlocalIntent.addCategory(Intent.CATEGORY_DEFAULT)localIntent.data = Uri.parse("package:" + context.packageName)} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {localIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)localIntent.action = Settings.ACTION_APPLICATION_DETAILS_SETTINGSlocalIntent.data = Uri.fromParts("package", context.packageName, null)} else {localIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)if (Build.VERSION.SDK_INT >= 9) {localIntent.action = "android.settings.APPLICATION_DETAILS_SETTINGS"localIntent.data = Uri.fromParts("package", context.packageName, null)} else if (Build.VERSION.SDK_INT <= 8) {localIntent.action = Intent.ACTION_VIEWlocalIntent.setClassName("com.android.settings","com.android.setting.InstalledAppDetails")localIntent.putExtra("com.android.settings.ApplicationPkgName",context.packageName)}}context.startActivity(localIntent)}}/*** 判断当前app在手机中是否开启了允许消息推送* @param mContext Context* @return Boolean*/fun isNotificationEnabled(mContext: Context): Boolean {return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {val mNotificationManager =mContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManagervar channel = mNotificationManager.getNotificationChannel(PortalCode.ChannelId)!(!mNotificationManager.areNotificationsEnabled() || channel.importance == NotificationManager.IMPORTANCE_NONE)} else if (Build.VERSION.SDK_INT >= 24) {val mNotificationManager =mContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManagermNotificationManager.areNotificationsEnabled()} else if (Build.VERSION.SDK_INT >= 19) {val CHECK_OP_NO_THROW = "checkOpNoThrow"val OP_POST_NOTIFICATION = "OP_POST_NOTIFICATION"val appOps = mContext.getSystemService(Context.APP_OPS_SERVICE) as AppOpsManagerval appInfo = mContext.applicationInfoval pkg = mContext.applicationContext.packageNameval uid = appInfo.uidtry {val appOpsClass = Class.forName(AppOpsManager::class.java.name)val checkOpNoThrowMethod = appOpsClass.getMethod(CHECK_OP_NO_THROW, Integer.TYPE,Integer.TYPE, String::class.java)val opPostNotificationValue = appOpsClass.getDeclaredField(OP_POST_NOTIFICATION)val value = opPostNotificationValue[Int::class.java] as Int(checkOpNoThrowMethod.invoke(appOps, value, uid, pkg) as Int== AppOpsManager.MODE_ALLOWED)} catch (e: ClassNotFoundException) {true} catch (e: NoSuchMethodException) {true} catch (e: NoSuchFieldException) {true} catch (e: InvocationTargetException) {true} catch (e: IllegalAccessException) {true} catch (e: RuntimeException) {true}} else {true}}
}

调用：

if (NotificationUtil.isNotificationEnabled(this)) {//当前app允许消息通知
} else {AlertDialog.Builder().message("为了您能收到推送通知请点击确定开始设置").okButtonText("确定").build().apply {setOkBtnClickListener {NotificationUtil.setNotification(this@CurMainActivity)}show(this@CurMainActivity)}
}

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Android 判断当前应用是否开启消息通知

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