Android P:如果用户回复了通知，则"NotificationManager.cancel"无法正常工作 [英] Android P: `NotificationManager.cancel` does not work if user has replied to notification

问题描述

NotificationManager.cancel(id)不再清除Android P上的通知， 如果 您已使用文本回复了该通知.

NotificationManager.cancel(id) no longer clears the notification on Android P, if you have already replied to the notification with text.

build.gradle

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.example.notificationnocancel"
        minSdkVersion 23
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest package="com.example.notificationnocancel"
          xmlns:android="http://schemas.android.com/apk/res/android">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>

                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>


        <receiver
            android:name=".NotificationActionBroadcastReceiver"
            android:exported="false">
            <intent-filter>
                <action android:name="REPLY_ACTION_SELECTED_ACTION"/>
            </intent-filter>
        </receiver>

    </application>

</manifest>

MainActivity.kt

internal const val REPLY_ACTION_SELECTED_ACTION = "REPLY_ACTION_SELECTED_ACTION"

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        postNotificationButton.setOnClickListener {
            postNotification()
        }
    }

    private fun postNotification() {
        val broadcastIntent = Intent(REPLY_ACTION_SELECTED_ACTION)
        broadcastIntent.setPackage(packageName)

        val likePendingIntent = PendingIntent.getBroadcast(
                this,
                System.currentTimeMillis().toInt(),
                broadcastIntent,
                0
        )

        val replyPendingIntent = PendingIntent.getBroadcast(
                this,
                System.currentTimeMillis().toInt(),
                broadcastIntent,
                0
        )

        val likeAction = NotificationCompat.Action.Builder(
                R.mipmap.ic_launcher,
                "Like",
                likePendingIntent
        ).build()

        val replyAction = NotificationCompat.Action.Builder(
                R.mipmap.ic_launcher,
                "Reply",
                replyPendingIntent
        ).addRemoteInput(RemoteInput.Builder("text").setLabel("Reply").build()).build()

        val builder = NotificationCompat.Builder(this)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentTitle("Hello!")
                .setContentText("Body!")
                .setAutoCancel(true)
                .addAction(likeAction)
                .addAction(replyAction)



        val notificationManager = applicationContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
        notificationManager.notify(10, builder.build())
    }
}

NotificationActionBroadcastReceiver.kt

class NotificationActionBroadcastReceiver : BroadcastReceiver() {
    override fun onReceive(context: Context, intent: Intent) {
        val notificationManager = context.applicationContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
        Log.i("Notification", String.format("There are %d notifications in the status bar from this app.", notificationManager.activeNotifications.size))
        notificationManager.cancel(10)
    }
}

推荐答案

您可以使用相同的ID通知新的Notification，然后可以将其取消.

you can notify a new Notification with the same ID , then you can cancel it.

//in your NotificationActionBroadcastReceiver
notificationManager.notify(ID , new Notification());//the same ID

yourHandler.postDelayed(new Runnable(){
                @Override
                public void run() {
                    notificationManager.cancel(ID);//the same ID
                }
} , 500);

这篇关于Android P:如果用户回复了通知，则"NotificationManager.cancel"无法正常工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！