xml 里的配置

<accessibility-service xmlns:android="http://schemas.android.com/apk/res/android"
                       android:accessibilityEventTypes="typeAllMask"
                       android:accessibilityFeedbackType="feedbackGeneric"
                       android:accessibilityFlags="flagDefault|flagRetrieveInteractiveWindows|flagIncludeNotImportantViews|flagReportViewIds"
                       android:canRequestEnhancedWebAccessibility="true"
                       android:canRequestFilterKeyEvents="true"
                       android:canRequestTouchExplorationMode="true"
                       android:canPerformGestures="true"
                       android:canRetrieveWindowContent="true"
                       android:description="@string/text_yunjia_accessibility_content"
                       android:notificationTimeout="100"
                       android:packageNames="@null"
                       android:settingsActivity=""
                       android:summary="" />