相关疑难解决方法(0)

我已启用可访问性服务权限，现在我想从地址栏中获取 url。

我试过下面的事情：

Accessibility_service_config.xml

<accessibility-service xmlns:android="http://schemas.android.com/apk/res/android"
    android:accessibilityEventTypes="typeAllMask"
    android:accessibilityFeedbackType="feedbackAllMask"
    android:accessibilityFlags="flagDefault"
    android:canRetrieveWindowContent="true"
    android:description="@string/accessibility_service_description"
    android:notificationTimeout="0"
    android:canRequestFilterKeyEvents="true"
    android:settingsActivity="com.example.android.accessibility.ServiceSettingsActivity" />

访问服务.java

public class AccessService extends AccessibilityService {

    @Override
    public void onAccessibilityEvent(AccessibilityEvent event) {
        AccessibilityNodeInfo source = event.getSource();
        if (source == null)
            return;
        final String packageName = String.valueOf(source.getPackageName());
        String BROWSER_LIST = "com.android.chrome";
        List<String> browserList
                = Arrays.asList(BROWSER_LIST.split(",\\s*"));
        if (event.getEventType()
                == AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED) {
            if (!browserList.contains(packageName)) {
                return;
            }
        }

        if (browserList.contains(packageName)) {
            try {
                if (AccessibilityEvent
                        .eventTypeToString(event.getEventType())
                        .contains("WINDOW")) {
                    AccessibilityNodeInfo nodeInfo = event.getSource();
                    getUrlsFromViews(nodeInfo);
                }
            } catch (StackOverflowError …