如何使用 android 无障碍服务来检测用户触摸了哪个视图？

【问题标题】：How to use an android accessibility service to detect which view the user touched?如何使用 android 无障碍服务来检测用户触摸了哪个视图？
【发布时间】：2022-06-18 16:06:42
【问题描述】：

Android TalkBack 可以做一些我也想做的事情。具体来说，它是识别用户触摸的视图。到目前为止我做到了：

@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
    if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_CLICKED) {

        //This only shows the package of the activity that the view is in, I want to identify the view itself
        Toast.makeText(this, "" + event.getSource().getPackageName(), Toast.LENGTH_LONG).show();
    }
}

【问题讨论】：

标签： java android accessibility accessibilityservice

【解决方案1】：

这个问题不清楚，但也许这会对你有所帮助：-

@Override 
public void onAccessibilityEvent(AccessibilityEvent event) {
    AccessibilityNodeInfo source = event.getSource(); 

    if (source == null) {
        return; 
    } 
    List<AccessibilityNodeInfo> findAccessibilityNodeInfosByViewId = source.findAccessibilityNodeInfosByViewId("YOUR PACKAGE NAME:id/RESOURCE ID FROM WHERE YOU WANT DATA"); 

    if (findAccessibilityNodeInfosByViewId.size() > 0) {
        AccessibilityNodeInfo parent = (AccessibilityNodeInfo) findAccessibilityNodeInfosByViewId.get(0);
        // You can also traverse the list if required data is deep in view hierarchy. 
        String requiredText = parent.getText().toString();
        Log.i("Required Text", requiredText);
    }
}

也读过这个tutorial

【讨论】：