我正在开发一个应用程序，该应用程序需要在 WhatsApp 呼叫开始（在呼叫者和接收者端）或结束时获得某种 notification/Receiver。是否可以在我的应用程序中获取传入/传出的 WhatsApp 呼叫信息？
我尝试过使用Accessibility Service
使用包名作为“com.whatsapp”，我无法满足我的要求。
有人会建议我该怎么做吗？或者这实际上可以做到吗？如果是，那么请解释一下。
【问题讨论】：
标签： android broadcastreceiver whatsapp
我试过了，我能够捕捉到 whatsapp 呼叫按钮点击和呼叫结束按钮点击动作。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 的技巧，我们将提供 contentDescription，系统在“对讲”可访问性模式下可以使用它。希望这有帮助！！！
【讨论】：
让我们解决查询.... 辅助功能服务将帮助您获得通知，即您何时会收到针对所需包名称的通知。例如“com.whatsapp”。
现在的好处是，您可以通过一点点努力在无障碍服务中解析自 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，但它目前不可用。
【讨论】：