java - 来自另一个类(class)的调用通知

Question

鉴于在我的应用程序中我需要很多通知，我有一个这样的类。

public class MyNotificationClass{

    NotificationManager mNotificationManager;
    NotificationCompat.Builder notificationBuilder;
    Context context;

    static final int NOTIFICA1 = 1;
    static final int NOTIFICA2 = 2;

    public MyNotificationClass(Context context) {
        // TODO Auto-generated constructor stub
        mNotificationManager = (NotificationManager) context.getApplicationContext().getSystemService(Context.NOTIFICATION_SERVICE);
        notificationBuilder = new NotificationCompat.Builder(context);
    }

    public void mostra(int Id) {

        switch(Id)
        {
        case NOTIFICA1:
            notificationBuilder.setContentTitle("Text01");
            notificationBuilder.setContentText("Text01");
            mNotificationManager.notify(NOTIFICA1, notificationBuilder.build());
            break;
        case NOTIFICA2:
            notificationBuilder.setContentTitle("Text02");
            notificationBuilder.setContentText("Text02");
            mNotificationManager.notify(NOTIFICA2, notificationBuilder.build());
            break;
        }
        notificationBuilder.setWhen(System.currentTimeMillis());
        notificationBuilder.setSmallIcon(R.drawable.ic_launcher);
        notificationBuilder.setDefaults(Notification.DEFAULT_SOUND | Notification.DEFAULT_LIGHTS );
    }

}

如果我想打电话，比如通知号码1，我该怎么办？

Answer 1

在 build() 通知之前，您必须在 NotificationBuilder 上调用 setWhen()、setSmallIcon()、setDefaults()。将该代码移到开关 block 前面。

重要的调用是 setSmallIcon()。如果您不设置图标，则不会显示通知。

像这样尝试:

public void mostra(int Id) {

    notificationBuilder.setWhen(System.currentTimeMillis());
    notificationBuilder.setSmallIcon(R.drawable.ic_launcher);
    notificationBuilder.setDefaults(Notification.DEFAULT_SOUND | Notification.DEFAULT_LIGHTS );

    switch(Id)
    {
    case NOTIFICA1:
        notificationBuilder.setContentTitle("Text01");
        notificationBuilder.setContentText("Text01");
        mNotificationManager.notify(id, notificationBuilder.build());
        break;
    case NOTIFICA2:
        notificationBuilder.setContentTitle("Text02");
        notificationBuilder.setContentText("Text02");
        mNotificationManager.notify(id, notificationBuilder.build());
        break;
    }
}

编辑:

在您的 Activity 中像这样调用此方法:

MyNotificationClass myNoti = new MyNotificationClass(this);
myNoti.mostra(MyNotificationClass.NOTIFICA1);