[英]How to use an android accessibility service to detect which view the user touched?
android TalkBack 有一些我想做的事情。 具体来说,它是识别用户触摸的视图。 到目前为止我做了这个:
@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();
}
}
您可以获得视图的 id,但我认为您只能访问与视图关联的AccessibilityNodeInfo
- 我认为您无权访问视图本身。 您可以查看文档以获取更多信息。
// kotlin code
event.source.viewIdResourceName
// or
findFocusedViewInfo().viewIdResourceName
根据文档:
获取源视图 id 的完全限定资源名称。
注意:此 API 的主要用途是 UI 测试自动化,为了报告 AccessibilityNodeInfo 的源视图 ID,客户端必须在配置 AccessibilityService 时设置 AccessibilityServiceInfo#FLAG_REPORT_VIEW_IDS 标志。
问题尚不清楚,但也许这会对您有所帮助:-
@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);
}
}
还阅读本教程
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