Question

当应用程序在Android设备中处于前台时，我无法获取推送通知。我将应用程序置于后台后，一切都会顺利进行。

这是我用来发送通知的Java代码：

        HttpClient client = HttpClientBuilder.create().build();
    HttpPost httpPost = new HttpPost(URL_SERVER);
    List<NameValuePair> arguments = new ArrayList<>();   
    arguments.add(new BasicNameValuePair("token", TOKEN));        
    arguments.add(new BasicNameValuePair("device", codigoApp));      
    arguments.add(new BasicNameValuePair("type", "1"));        
    arguments.add(new BasicNameValuePair("body", ip));                    
    arguments.add(new BasicNameValuePair("auth", GOOGLE_AUTH));        
    try {
        httpPost.setEntity(new UrlEncodedFormEntity(arguments));
        HttpResponse response = client.execute(httpPost);   
        String result = EntityUtils.toString(response.getEntity());
        System.out.println(result);
    } catch (IOException ex) {
        Logger.getLogger(NotificaReview.class.getName()).log(Level.SEVERE, null, ex);
    }

这是应用程序中的代码：

    public void start() {
    if(current != null){
        current.show();
        return;
    }
    if (Push.getPushKey() != null)
        devicePush = Push.getPushKey(); 
    else
        Display.getInstance().registerPush(); 
    Form inicioGUI = new InicioGUI(devicePush);
    inicioGUI.show();
}

public void stop() {
    current = getCurrentForm();
    if(current instanceof Dialog) {
        ((Dialog)current).dispose();
        current = getCurrentForm();
    }
}

public void destroy() {
}

@Override
public void push(String value) {
  ToastBar.showMessage("Archivo recibido correctamente con IP" + value, FontImage.MATERIAL_INFO);
}

@Override
public void registeredForPush(String deviceId) {
    devicePush = deviceId;
}

@Override
public void pushRegistrationError(String error, int errorCode) {

}

仅当我在后台接收到推送后将应用程序带到前台时，才会显示ToastBar。如果应用程序仍然存在，则永远不会调用Push回调。

有什么想法吗？

Answer 1

我需要回答我对问题的评论，这可能有助于解释问题。我将根据问题的更新来编辑此答案。

同时，我在代码中看到了几个问题。请在下面查看我突出显示的评论/修复程序：

public void start() {
    if(current != null){
        current.show();
        return;
    }
    // don't check the push key, always register the device and 
    // always do it in a callSerially as it might trigger a prompt
    callSerially(() -> registerPush()); 
    Form inicioGUI = new InicioGUI(Push.getPushKey());
    inicioGUI.show();
}

@Override
public void push(String value) {
  ToastBar.showMessage("Archivo recibido correctamente con IP" + value, FontImage.MATERIAL_INFO);
}

@Override
public void registeredForPush(String deviceId) {
    // deviceId is the native push key you need to use the actual 
    // push key value never device ID
    devicePush = Push.getPushKey();
}

@Override
public void pushRegistrationError(String error, int errorCode) {
    // you might have gotten a push error which might have explained the
    // cause of the problem
    Log.p("Push error " + errorCode + ":" + error);
    Log.sendLogAsync();
}

当应用程序处于前台时，推送通知未到达

1 个答案: