我有一个Android应用程序，在其中有一个类似于此列表视图
现在我想以同样的方式在列表项向右/向左滑动时执行两种不同的活动，就像本机通话记录一样
列表向右滑动
我想要这种类型的滑动。 有人知道如何实现吗？基本上，我想要实现 SimpleOnGestureListener 。
我阅读了由 Fling gesture detection on grid layout回答的帖子，之后我成功实现了左滑和右滑检测，但唯一的问题是我无法确定发生滑动的列表项。
更新 2013年5月24日
现在，我能够使用此代码检测滑动操作 -
SwipeDetector.java
/**
* Class swipe detection to View
*/
public class SwipeDetector implements View.OnTouchListener {
public static enum Action {
LR, // Left to right
RL, // Right to left
TB, // Top to bottom
BT, // Bottom to top
None // Action not found
}
private static final int HORIZONTAL_MIN_DISTANCE = 30; // The minimum
// distance for
// horizontal swipe
private static final int VERTICAL_MIN_DISTANCE = 80; // The minimum distance
// for vertical
// swipe
private float downX, downY, upX, upY; // Coordinates
private Action mSwipeDetected = Action.None; // Last action
public boolean swipeDetected() {
return mSwipeDetected != Action.None;
}
public Action getAction() {
return mSwipeDetected;
}
/**
* Swipe detection
*/@Override
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_MOVE:
{
upX = event.getX();
upY = event.getY();
float deltaX = downX - upX;
float deltaY = downY - upY;
// horizontal swipe detection
if (Math.abs(deltaX) > HORIZONTAL_MIN_DISTANCE) {
// left or right
if (deltaX < 0) {
mSwipeDetected = Action.LR;
return true;
}
if (deltaX > 0) {
mSwipeDetected = Action.RL;
return true;
}
} else
// vertical swipe detection
if (Math.abs(deltaY) > VERTICAL_MIN_DISTANCE) {
// top or down
if (deltaY < 0) {
mSwipeDetected = Action.TB;
return false;
}
if (deltaY > 0) {
mSwipeDetected = Action.BT;
return false;
}
}
return true;
}
}
return false;
}
}
现在以这种方式将其与您的ListView一起使用
// Set the touch listener
final SwipeDetector swipeDetector = new SwipeDetector();
lv.setOnTouchListener(swipeDetector);
在setOnItemClickListener中，您可以像下面这样检测滑动事件
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView <? > parent, View view,
int position, long id) {
if (swipeDetector.swipeDetected()) {
if (swipeDetector.getAction() == SwipeDetector.Action.LR) {
Toast.makeText(getApplicationContext(),
"Left to right", Toast.LENGTH_SHORT).show();
}
if (swipeDetector.getAction() == SwipeDetector.Action.RL) {
Toast.makeText(getApplicationContext(),
"Right to left", Toast.LENGTH_SHORT).show();
}
}
}
});
但是我仍然无法像这样使滑动动画活泼起来：
