Question

我正在开发一个应用程序，当WhatsApp调用启动时（在调用者和接收者端都有）或结束时，需要获得某种notification / Receiver。是否可以在我的应用程序中获取Incoming / Outgoing WhatsApp呼叫信息？

我尝试使用Accessibility Service

将包名称用作＆＃34; com.whatsapp＆＃34;，我无法满足我的要求。有人会建议我该怎么办？或者这可以实际完成吗？如果是，那么请解释如何。

Answer 1

我尝试了，我能够捕获whatsapp呼叫按钮单击并调用结束按钮单击操作。下面是我使用的简单AccessibilityService，它与Android Developers website

中提供的示例没有什么不同

public class MyAccessibilityService extends AccessibilityService {

@Override
protected void onServiceConnected() {
    AccessibilityServiceInfo info = new AccessibilityServiceInfo();
    // Set the type of events that this service wants to listen to.  Others
    // won't be passed to this service.
    info.eventTypes = AccessibilityEvent.TYPE_VIEW_CLICKED |
            AccessibilityEvent.TYPE_VIEW_FOCUSED;

    // If you only want this service to work with specific applications, set their
    // package names here.  Otherwise, when the service is activated, it will listen
    // to events from all applications.
    info.packageNames = new String[]
            {"com.whatsapp","com.android.calendar"};

    // Set the type of feedback your service will provide.
    info.feedbackType = AccessibilityServiceInfo.FEEDBACK_SPOKEN;

    // Default services are invoked only if no package-specific ones are present
    // for the type of AccessibilityEvent generated.  This service *is*
    // application-specific, so the flag isn't necessary.  If this was a
    // general-purpose service, it would be worth considering setting the
    // DEFAULT flag.

    // info.flags = AccessibilityServiceInfo.DEFAULT;

    info.notificationTimeout = 100;

    this.setServiceInfo(info);



}

@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
    final int eventType = event.getEventType();
    String eventText = null;
    switch(eventType) {
        case AccessibilityEvent.TYPE_VIEW_CLICKED:
            eventText = "Focused: ";
            break;
        case AccessibilityEvent.TYPE_VIEW_FOCUSED:
            eventText = "Focused: ";
            break;
    }

    //eventText = eventText + event.getContentDescription();

    // Do something nifty with this text, like speak the composed string
    // back to the user.
    Toast.makeText(getApplicationContext(),""+eventText +" --- "+event.getContentDescription(),Toast.LENGTH_LONG).show();
}

@Override
public void onInterrupt() {

}

}

在上面的代码中，我展示了一个toast消息和drawable技巧，我们将提供contentDescription，系统可以在＆＃34; Talkback＆＃34;辅助功能模式。希望这会有所帮助!!!

Answer 2

让我们解决问题.... 当您收到针对所需包裹名称的通知时，辅助功能服务将帮助您获得通知。例如＆＃34; com.whatsapp＆＃34;。

现在好处是您可以通过一点点努力在Accessibility Service中解析自Android 4.2以来的通知消息。不幸的是，有一个github project正在做你想要的事情，但它目前无法使用。

Android Whatsapp呼叫启动广播接收器

2 个答案: