Question

我在自定义通知中有一个Imageview，我想将此imageview单击后替换为另一个但是问题是单击Imageview后没有任何反应

这是我的CustomNotification.xml：-

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="120dp"
    android:background="#fa8072">


    <ImageView
        android:id="@+id/imginNotification"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_centerInParent="true"
        android:src="@drawable/defaultimg " />



</RelativeLayout

这是Mainactivity.java中的“显示通知”按钮：- 此变量对所有类都是公共的 lateinit var remoteViews00：RemoteViews

var btnShowNotification = findViewById<Button>(R.id.button)
    btnShowNotification.setOnClickListener {

        lateinit var  builder00:NotificationCompat.Builder
        lateinit var   notificationManager00:NotificationManager
        var  notification_id:Int = 0
        lateinit var  context00:Context


        context00 = this
        notificationManager00 = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
        builder00 = NotificationCompat.Builder(this)
        remoteViews00 = RemoteViews(getPackageName(), R.layout.mycustomnoti)





        notification_id = System.currentTimeMillis().toInt()
        val button_intent = Intent("button_click")
        button_intent.putExtra("id", notification_id)
        val button_pending_event = PendingIntent.getBroadcast(context00, notification_id,
                button_intent, 0)
        remoteViews00.setOnClickPendingIntent(R.id.imginNotification, button_pending_event)
        val notification_intent = Intent(context00, MainActivity::class.java)
        val pendingIntent = PendingIntent.getActivity(context00, 0, notification_intent, 0)
        builder00.setSmallIcon(R.drawable.notiicon)
                .setAutoCancel(true)
                .setCustomBigContentView(remoteViews00)
                .setContentIntent(pendingIntent)
        notificationManager00.notify(notification_id, builder00.build())


    }

这是我的BroadcastReciever类别：-

class changepicture:BroadcastReceiver() {
    override fun onReceive(context:Context, intent:Intent) {

    remoteViews00.setImageViewResource(R.id.imginNotification,R.drawable.musicimg)
    }
    }

最后是AndroidManifest.xml中的接收者：-

<receiver android:name=".changepicture">
    <intent-filter>
        <action android:name="button_click"/>
    </intent-filter>
</receiver>

Answer 1

更新RemoteViews对象不足以触发刷新通知-您需要使用构建器再次调用notify()：

class changepicture:BroadcastReceiver() {
  override fun onReceive(context:Context, intent:Intent) {
    remoteViews00.setImageViewResource(R.id.imginNotification, R.drawable.musicimg)

    // Note: you need to use the exact same notification_id
    // to update the notification
    notificationManager00.notify(notification_id, builder00.build())
  }
}

RemoteViews.setImageViewResource不起作用？

1 个答案: