在Android中，我想查找用户单击或滑动过的文本。我正在尝试使用AccessibilityService。到目前为止，我已经使用AccessibilityNodeInfo获得了屏幕上的所有文本。
但是我无法确定用户单击或滑动的文字。我想阅读用户在屏幕上滑动（或手指移动）的任何文本内容。
到目前为止，如果有帮助，这是我的AccessibilityService。
class MyAccessibilityService :AccessibilityService(){
companion object {
@SuppressLint("StaticFieldLeak")
var sSharedInstance:MyAccessibilityService? = null
private set
}
override fun onServiceConnected() {
sSharedInstance = this;
Log.e("Service started", "yoyo")
}
override fun onUnbind(intent: Intent): Boolean {
sSharedInstance = null;
return true;
}
override fun onInterrupt() {
}
override fun onAccessibilityEvent(event: AccessibilityEvent?) {
if(event != null && event.source != null/*&& (event.eventType == AccessibilityEvent.TYPE_VIEW_LONG_CLICKED ||
event.eventType == AccessibilityEvent.TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY)*/) {
Log.e("Accessibility", "time:" + event?.eventTime + " action: " + event?.action
+ " type:" + event.eventType)
displayAllNodes(event.source)
Log.e("movement", "granular: "+ event.movementGranularity + " from ind: " + event.fromIndex + " toInd: "
+ event.toIndex + " text: " + event.text + " beforeText: " + event.beforeText)
} else if(event != null){
Log.e("event:null", "type: " + event.eventType + " ,")
}
}
private fun displayAllNodes(source: AccessibilityNodeInfo){
val childCount = source.childCount
if(childCount <= 0) return
Log.e("Display_source", source.className.toString() )
source.extras.keySet().forEach(Consumer {
Log.e("bundle " + it, source.extras.get(it).toString())
})
for(i in 0..childCount-1){
val child = source.getChild(i)
Log.e("child At:"+ i, child?.text?.toString()?:"na")
Log.e("Display_child_source", child?.className.toString()?:"NA" )
if(child != null)
displayAllNodes(child)
}
// if(windows.isNotEmpty()){
// val type = windows.get(0)::class.java.simpleName
// }
}
/* override fun onKeyEvent(event: KeyEvent?): Boolean {
Log.e("key event", "action:" + event?.action + " chars: "+ event?.characters+ " long_press? " + event?.isLongPress)
if(event?.isLongPress?:false){
event?.startTracking()
}
return super.onKeyEvent(event)
}*/
override fun onGesture(gestureId: Int): Boolean {
Log.e("on_gesture", "id: " + gestureId)
return super.onGesture(gestureId)
}
}