Question

我正在尝试使用应用程序的辅助功能，使用辅助功能来单击“允许设置”。我已经查看了AccessibilityNode，但在TextView中看不到任何可交互的内容。这是节点的输出：

Event Type: TYPE_WINDOW_CONTENT_CHANGED com.google.android.permissioncontroller android.widget.FrameLayout
 Source: 
0 | class name: android.widget.FrameLayout text: null content description: null input type 0 actions: ACTION_SELECT, ACTION_CLEAR_SELECTION, ACTION_ACCESSIBILITY_FOCUS, ACTION_SHOW_ON_SCREEN  
1 | class name: android.widget.ScrollView text: null content description: null input type 0 actions: ACTION_FOCUS, ACTION_SELECT, ACTION_CLEAR_SELECTION, ACTION_ACCESSIBILITY_FOCUS, ACTION_SHOW_ON_SCREEN  
2 | class name: android.widget.TextView text: Change location access for AppName? content description: null input type 0 actions: ACTION_SELECT, ACTION_CLEAR_SELECTION, ACTION_ACCESSIBILITY_FOCUS, ACTION_NEXT_AT_MOVEMENT_GRANULARITY, ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY, ACTION_SET_SELECTION, ACTION_SHOW_ON_SCREEN  
2 | class name: android.widget.TextView text: This app wants to access your location all the time, even when you’re not using the app. Allow in settings. content description: null input type 0 actions: ACTION_FOCUS, ACTION_SELECT, ACTION_CLEAR_SELECTION, ACTION_ACCESSIBILITY_FOCUS, ACTION_NEXT_AT_MOVEMENT_GRANULARITY, ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY, ACTION_SET_SELECTION, ACTION_SHOW_ON_SCREEN  
2 | class name: android.widget.Button text: Keep “While the app is in use” content description: null input type 0 actions: ACTION_FOCUS, ACTION_SELECT, ACTION_CLEAR_SELECTION, ACTION_CLICK, ACTION_ACCESSIBILITY_FOCUS, ACTION_NEXT_AT_MOVEMENT_GRANULARITY, ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY, ACTION_SET_SELECTION, ACTION_SHOW_ON_SCREEN

TextView只有少量可用的操作。据我所知，我尝试了可用的操作，但没有成功。

我也探讨了直接意图“进入设置”部分的想法，但目前还没有。我们的应用要求位置始终保持打开状态。

Answer 1

ClickableSpans从Android O开始传递到可访问性。您可以在文本中找到ClickableSpans，然后调用onClick。然后，系统将确保在应用程序过程中调用原始跨度的onClick方法。

如果使用AccessibilityNodeInfoCompat，则将其反向移植，但该应用还必须调用ViewCompat＃enableAccessibleClickableSpanSupport（view）。

Answer 2

所以我最终要做的是编写一个静态函数以从CharSequence获取跨度

@NonNull
ClickableSpan[] getClickableSpans(CharSequence text) {
    try {
      if (text instanceof Spanned) {
        Spanned spanned = (Spanned) text;
        return spanned.getSpans(0, text.length(), ClickableSpan.class);
      }
    } catch (Exception e) {
    //log exception
    }
    return new ClickableSpan[0];
}

并使用它

public void onAccessibilityEvent(AccessibilityEvent) {
    AccessibilityNodeInfo nodeInfo = event.getSource();
    if (nodeInfo != null) {
        List<AccessibilityNodeInfo> nodeInfoList = nodeInfo.findAccessibilityNodeInfosByText(
          "This app wants to access your location all the time, even when you're not using the app. Allow in settings.");
        if (nodeInfoList != null && !nodeInfoList.isEmpty()) {
            ClickableSpan[] spans = getClickableSpans(nodeInfoList.get(0).getText());
            if (spans.length > 0) {
                spans[0].onClick(null);
            }
        }
    }
}

有没有一种方法可以使用AccessibilityService在对话框中单击超链接？

2 个答案: