NotificationListenerService UI更新

Question

使用以下方法我可以显示吐司。
但是我无法访问mHandler.post(new Runnable() { });块内的 sbn对象。

如何实现此功能？

public class NLService extends NotificationListenerService {

static Handler mHandler;

    public void onCreate() {
        super.onCreate();
        mHandler = new Handler();

        displayToast("Service Started NL");

    }

@Override
public void onNotificationPosted(StatusBarNotification sbn) {

    mHandler.post(new Runnable() {            
        @Override
        public void run() {
            Toast.makeText(getApplicationContext(), "Hello Toast!", Toast.LENGTH_LONG).show();                
        }
    });


}
}

Answer 1

声明你的变量final。

public class NLService extends NotificationListenerService {

static Handler mHandler;

    public void onCreate() {
        super.onCreate();
        mHandler = new Handler();

        displayToast("Service Started NL");

    }

@Override
public void onNotificationPosted(final StatusBarNotification sbn) {

    mHandler.post(new Runnable() {            
        @Override
        public void run() {
            Toast.makeText(getApplicationContext(), "Hello Toast!", Toast.LENGTH_LONG).show();                
        }
    });


}
}

Answer 2

更改＆＃39; sbn＆＃39;的修饰符决赛：

public void onNotificationPosted（最终StatusBarNotification sbn）{