检测新的 Android 通知 [英] Detect a new Android notification

问题描述

在我正在开发的 Android 应用中，我希望能够检测何时出现新的状态栏通知，无论它是否是由我的应用引起的.更具体地说，我想计算给定时间范围内的通知数量.

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.

这是否可行，如果可以，如何实现?

Is this even possible, and if so, how?

推荐答案

其实是有可能的，我在我的应用中使用它.

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

对于 Android 4.2 及更低版本:

您需要注册一个 AccessibilityService 并确保用户启用服务.

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

服务示例:

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;
}
}

检查您的服务是否为的示例激活

对于 Android 4.3 及更高版本:

使用通知监听器 API

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