Question

使用{{1}}和{{1}}时，有没有办法在Android Oreo上设置频道？

Answer 1

由于NotificationManagerCompat只是一个让生活更轻松的包装类，因此您可以正常创建通道：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
    val name = getString(R.string.channel_title)
    val description = getString(R.string.channel_description)
    val importance = NotificationManager.IMPORTANCE_HIGH
    val mChannel = NotificationChannel(CHANNEL_ID, name, importance)
    mChannel.description = description
    mChannel.enableLights(true)
    mChannel.lightColor = Color.parseColor("#5B3C88")
    mChannel.enableVibration(true)
    mChannel.vibrationPattern = longArrayOf(100, 200, 300, 400, 500, 400, 300, 200, 400)
    val manager = (context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager)
    manager.createNotificationChannel(mChannel)
}

然后在发布通知时使用NotificationManagerCompat，但不要忘记使用新构造函数构建通知：

NotificationCompat.Builder(context, CHANNEL_ID)

Answer 2

我通常使用此类来管理通知渠道：

class NotificationManager(private val context: Context) {

    companion object {
        private val CHANNEL_ID = "YOUR_CHANNEL_ID"
        private val CHANNEL_NAME = "Your human readable notification channel name"
        private val CHANNEL_DESCRIPTION = "description"
    }

    @RequiresApi(Build.VERSION_CODES.O)
    fun getMainNotificationId(): String {
        return CHANNEL_ID
    }

    @RequiresApi(Build.VERSION_CODES.O)
    fun createMainNotificationChannel() {
            val id = CHANNEL_ID
            val name = CHANNEL_NAME
            val description = CHANNEL_DESCRIPTION
            val importance = android.app.NotificationManager.IMPORTANCE_LOW
            val mChannel = NotificationChannel(id, name, importance)
            mChannel.description = description
            mChannel.enableLights(true)
            mChannel.lightColor = Color.RED
            mChannel.enableVibration(true)
            val mNotificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as android.app.NotificationManager
            mNotificationManager.createNotificationChannel(mChannel)
    }
}

然后你可以像这样使用util

fun createNotificationCompatBuilder(context: Context): NotificationCompat.Builder {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        return NotificationCompat.Builder(context, NotificationManager(context).mainNotificationId)
    } else {
        return NotificationCompat.Builder(context)
    }
}

通过这种方式，您可以在应用程序的任何位置使用它，就像您之前使用的一样，您可以在将来更改时轻松更改它。

Answer 3

使用NotificationManagerCompat时是否可以在Android Oreo上设置频道？

NotificationManagerCompat now支持通知渠道。新版本向NotificationManagerCompat添加了通知通道方法，因此开发人员在处理通知时只能使用NotificationManagerCompat。

在build.gradle文件中包括以下内容

implementation 'androidx.core.app:1.1.0-alpha03'

Android Oreo上的NotificationManagerCompat

3 个答案: