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下面的示例使我的Expandable列表消失，只要我設置OnTouch偵聽器或onCLick偵聽器。Android ExpandableLists，實現手勢，設置onTouch偵聽器使可擴展列表消失
我有一個ActivityswipeDetector類：
public class ActivitySwipeDetector implements View.OnTouchListener {
public static enum Action {
LR, // Left to Right
RL, // Right to Left
TB, // Top to bottom
BT, // Bottom to Top
None // when no action was detected
}
private static final String logTag = "SwipeDetector";
private static final int MIN_DISTANCE = 100;
private float downX, downY, upX, upY;
private Action mSwipeDetected = Action.None;
public boolean swipeDetected(){
return mSwipeDetected != Action.None;
}
public Action getAction(){
return mSwipeDetected;
}
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN: {
downX = event.getX();
downY = event.getY();
mSwipeDetected = Action.None;
return false; // allow other events like Click to be processed
}
case MotionEvent.ACTION_UP: {
upX = event.getX();
upY = event.getY();
float deltaX = downX - upX;
float deltaY = downY - upY;
// horizontal swipe detection
if (Math.abs(deltaX) > MIN_DISTANCE) {
// left or right
if (deltaX < 0) {
Log.i(logTag, "Swipe Left to Right");
mSwipeDetected = Action.LR;
return false;
}
if (deltaX > 0) {
Log.i(logTag, "Swipe Right to Left");
mSwipeDetected = Action.RL;
return false;
}
} else
// vertical swipe detection
if (Math.abs(deltaY) > MIN_DISTANCE) {
// top or down
if (deltaY < 0) {
Log.i(logTag, "Swipe Top to Bottom");
mSwipeDetected = Action.TB;
return false;
}
if (deltaY > 0) {
Log.i(logTag, "Swipe Bottom to Top");
mSwipeDetected = Action.BT;
return false;
}
}
return false;
}
}
return false;
}
}
我的主類中我加在頂部以下的的onCreate方法 - 但前兩行進行擴展列表dissapear：
final ActivitySwipeDetector swipeDetector = new ActivitySwipeDetector();
list.setOnTouchListener(swipeDetector);
list.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (swipeDetector.swipeDetected()){
// do the onSwipe action
} else {
// do the onItemClick action
}
}
});
list.setOnItemLongClickListener(new OnItemLongClickListener() {
public boolean onItemLongClick(AdapterView<?> parent, View view,int position, long id) {
if (swipeDetector.swipeDetected()){
// do the onSwipe action
return true;
} else {
// do the onItemLongClick action
return false;
}
}
});
「list」被定義爲list = getExpandableListView（）;
所以1）我在做什麼錯，使擴展列表dissapear
2）我應該使用onGroupClick聽衆和onChildClick聽衆？如果是這樣，請告訴我在哪裏添加他們
3）它說「做滑動動作」和「做OnItemClick動作」，我該添加什麼？
我用左到右揮筆在列表上的項目擴大
從右到左揮筆回去了，我有一個爲具有代碼已經這麼一個按鈕i應該用我假設的刷卡來代替？
任何幫助將不勝感激！
Ž