上一篇我們確保了我們開啟了通知欄的許可權，那麼接下來就是傳送推送了，廢話不多說，上程式碼。

首先我們判斷手機版本號，Android版本大於8.0的時候呢，我們需要進行一下通道的操作才可：判斷版本號程式碼接好

//此處判斷安卓版本號是否大於或者等於Android8.0
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
    String channelId = "chat";//設定通道的唯一ID
    String channelName = "聊天訊息";//設定通道名
    int importance = NotificationManager.IMPORTANCE_HIGH;//設定通道優先順序
    createNotificationChannel(channelId, channelName, importance,title,text);
} else {
    sendSubscribeMsg(title,text);
}
 

Android8.0+適配

    @TargetApi(Build.VERSION_CODES.O)
    private void createNotificationChannel(String channelId, String channelName, int importance,String title,String text) {
        NotificationChannel channel = new NotificationChannel(channelId, channelName, importance);
        NotificationManager notificationManager = (NotificationManager) AppApplication.getContext().getSystemService(NOTIFICATION_SERVICE);
        notificationManager.createNotificationChannel(channel);
        sendSubscribeMsg(title,text);
    }
 

通知欄推送程式碼

public void sendSubscribeMsg(String title,String text) {
    NotificationManager manager = (NotificationManager) AppApplication.getContext().getSystemService(NOTIFICATION_SERVICE);
    Notification notification = new NotificationCompat.Builder(AppApplication.getContext(), "chat")
            .setContentTitle(title)
            .setContentText(text)
            .setWhen(System.currentTimeMillis())
            .setSmallIcon(R.mipmap.logo)
            .setLargeIcon(BitmapFactory.decodeResource(AppApplication.getContext().getResources(), R.mipmap.logo))
            .setAutoCancel(true)
            .build();
        manager.notify(2, notification);
    }
 

我們還可以給notification設定其他屬性，例如：

setCustomContentView(createContentView())  用於設定自定義的View

notification.flags |= Notification.FLAG_NO_CLEAR; 設定flags 使其無法被滑動刪除