由网友(执子之手，将子拖走)分享简介：在Android的应用程序，我的工作，我想，当一个新的状态栏通知出现，不管它是否是由我的应用程序引起的，就能够检测到。更具体地，我要计数在给定时间帧通知的数量。In the Android app that I'm working on, I'd like to be able to detect when a ne...

在Android的应用程序，我的工作，我想，当一个新的状态栏通知出现，不管它是否是由我的应用程序引起的，就能够检测到。更具体地，我要计数在给定时间帧通知的数量。

In the Android app that I'm working on, I'd like to be able to detect when a new status bar notification appears, regardless of if it was caused by my app. To be more specific, I want to count the number of notifications in a given time frame.

这甚至有可能，如果是这样，怎么样？

Is this even possible, and if so, how?

推荐答案

其实，这是可能的，我在我的应用程序中使用它。

Actually, it is possible, I use it in my app.

您需要注册一个AccessibilityService并确保用户启用该服务。

You need to register an AccessibilityService and make sure the user enables the service.

实例服务：

public class InstantMessenger extends AccessibilityService {

@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
    if (event.getEventType() == AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED) {
        //Do something, eg getting packagename
        final String packagename = String.valueOf(event.getPackageName());  
}
}

@Override
protected void onServiceConnected() {
    if (isInit) {
        return;
    }
    AccessibilityServiceInfo info = new AccessibilityServiceInfo();
    info.eventTypes = AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED;
    info.feedbackType = AccessibilityServiceInfo.FEEDBACK_SPOKEN;
    setServiceInfo(info);
    isInit = true;
}

@Override
public void onInterrupt() {
    isInit = false;
}
}

Example检查如果您的服务已激活