Android:使用辅助功能读取Google chrome URL [英] Android : Read Google chrome URL using accessibility service

问题描述

我想阅读用户在浏览器中输入的网址.这是我的辅助功能代码.

I want to read the url user has entered in his browser. Here is my accessibility service code.

<accessibility-service xmlns:android="http://schemas.android.com/apk/res/android"
android:accessibilityFlags="flagDefault"
android:accessibilityEventTypes="typeWindowStateChanged"
android:accessibilityFeedbackType="feedbackGeneric"
android:notificationTimeout="0"
android:canRetrieveWindowContent="true"
android:packageNames="com.android.chrome"
android:description="@string/accessibility_description"
/>

在AndroidManifest中

In AndroidManifest

<service android:name=".MyAccessibilityService"
        android:label="@string/accessibility_title"
        android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE">
        <intent-filter>
            <action android:name="android.accessibilityservice.AccessibilityService"/>
        </intent-filter>
        <meta-data
            android:name="android.accessibilityservice"
            android:resource="@xml/accessibility_service_config" />
    </service>

在MyAccessibilityService中

In MyAccessibilityService

 public void onAccessibilityEvent(AccessibilityEvent event) {
    debug("On accessibility event");
    getChromeUrl(getRootInActiveWindow());
}

public void getChromeUrl(AccessibilityNodeInfo nodeInfo) {
    //Use the node info tree to identify the proper content.
    //For now we'll just log it to logcat.
    Log.d(TAG, toStringHierarchy(nodeInfo, 0));
}
private String toStringHierarchy(AccessibilityNodeInfo info, int depth) {
    if (info == null) return "";

    String result = "|";
    for (int i = 0; i < depth; i++) {
        if (result.contains("http")) {
            Log.d(TAG, "Found URL!!!!!!!!!!!!!!" + result);
        }
        result += "  ";
    }

    result += info.toString();

    for (int i = 0; i < info.getChildCount(); i++) {
        result += "\n" + toStringHierarchy(info.getChild(i), depth + 1);
    }

    return result;
}
private static void debug(Object object) {
    Log.d(TAG, object.toString());
}

问题是我正在从rootview的url中获取内容的视图，而不是顶部地址栏.任何帮助表示赞赏.

Problem is i am getting views from content in the url in my rootview, not the top address bar. Any help is appreciated.

推荐答案

我使用

android:accessibilityFlags="flagDefault|flagIncludeNotImportantViews|flagRequestTouchExplorationMode|flagRequestEnhancedWebAccessibility|flagReportViewIds|flagRetrieveInteractiveWindows"

然后我听Windows Changed Event

And I listen to Windows Changed Event

public void onAccessibilityEvent(AccessibilityEvent event) {
    if(AccessibilityEvent.eventTypeToString(event.getEventType()).contains("WINDOW")){
         AccessibilityNodeInfo nodeInfo = event.getSource();
         dfs(nodeInfo);
    }
}

public void dfs(AccessibilityNodeInfo info){
    if(info == null)
        return;
    if(info.getText() != null && info.getText().length() > 0)
        System.out.println(info.getText() + " class: "+info.getClassName());
    for(int i=0;i<info.getChildCount();i++){
       AccessibilityNodeInfo child = info.getChild(i);
       dfs(child);
       if(child != null){
          child.recycle();
       }
    }
}

它有效！

这篇关于Android:使用辅助功能读取Google chrome URL的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！