如何根据点击推送通知的具体内容选择startActivity活动？(Kotlin)

class NotificationReceiver : BroadcastReceiver() {
    override fun onReceive(context: Context?, intent: Intent?) {
        // 在这里处理推送通知的点击事件
        val extras = intent?.extras
        val notificationId = extras?.getInt("notification_id", 0)
        val notificationType = extras?.getString("notification_type", "")
        
        // 根据具体内容选择启动的Activity
        when (notificationType) {
            "type1" -> {
                val activityIntent = Intent(context, Activity1::class.java)
                context?.startActivity(activityIntent)
            }
            "type2" -> {
                val activityIntent = Intent(context, Activity2::class.java)
                context?.startActivity(activityIntent)
            }
            // 其他推送通知类型的处理
            // ...
        }
        
        // 清除点击的推送通知
        val notificationManager = context?.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
        notificationManager.cancel(notificationId)
    }
}

<manifest>
    <uses-permission android:name="android.permission.VIBRATE" />
  
    <application>
        <receiver android:name=".NotificationReceiver" />
        
        <!-- 声明Notification点击的IntentFilter -->
        <activity
            android:name=".Activity1"
            android:exported="true">
            <intent-filter>
                <action android:name="com.example.NOTIFICATION_ACTION_TYPE1" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name=".Activity2"
            android:exported="true">
            <intent-filter>
                <action android:name="com.example.NOTIFICATION_ACTION_TYPE2" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <!-- 其他Activity的声明 -->
        <!-- ... -->
    </application>
</manifest>

// 设置点击通知时的Intent
val clickIntent1 = Intent("com.example.NOTIFICATION_ACTION_TYPE1")
clickIntent1.putExtra("notification_id", notificationId)
clickIntent1.putExtra("notification_type", "type1")
val clickPendingIntent1 = PendingIntent.getBroadcast(context, 0, clickIntent1, PendingIntent.FLAG_UPDATE_CURRENT)

val clickIntent2 = Intent("com.example.NOTIFICATION_ACTION_TYPE2")
clickIntent2.putExtra("notification_id", notificationId)
clickIntent2.putExtra("notification_type", "type2")
val clickPendingIntent2 = PendingIntent.getBroadcast(context, 0, clickIntent2, PendingIntent.FLAG_UPDATE_CURRENT)

// 构建推送通知
val notificationBuilder = NotificationCompat.Builder(context, "channel_id")
    .setContentTitle("Notification Title")
    .setContentText("Notification Content")
    .setSmallIcon(R.drawable.notification_icon)
    .setContentIntent(clickPendingIntent1) // 设置通知点击事件
    .addAction(R.drawable.icon1, "Action 1", clickPendingIntent1) // 设置通知上的按钮1
    .addAction(R.drawable.icon2, "Action 2", clickPendingIntent2) // 设置通知上的按钮2

// 发送推送通知
val notificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
notificationManager.notify(notificationId, notificationBuilder.build())