列表视图项向左滑动并向右滑动?
问题描述:
列表视图项目可以响应向左滑动并向右滑动吗?列表视图项向左滑动并向右滑动?
如果是这样,如何应用android滑动左右滚动来打开不同的意图?我想要默认情况下在android中的联系人视图中调用电话或消息。
感谢
答
试试这个:
navigaList.setOnTouchListener(swipeDetector);
navigaList.setOnItemClickListener(listener);
OnItemClickListener listener = new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
long arg3) {
if(swipeDetector.swipeDetected()) {
if(swipeDetector.getAction() == Action.RL) {
} else {
}
}
};
SwipeDetector.java
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 // 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_MOVE: {
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) {
Logger.show(Log.INFO,logTag, "Swipe Left to Right");
mSwipeDetected = Action.LR;
return true;
}
if (deltaX > 0) {
Logger.show(Log.INFO,logTag, "Swipe Right to Left");
mSwipeDetected = Action.RL;
return true;
}
} else
// vertical swipe detection
if (Math.abs(deltaY) > MIN_DISTANCE) {
// top or down
if (deltaY < 0) {
Logger.show(Log.INFO,logTag, "Swipe Top to Bottom");
mSwipeDetected = Action.TB;
return false;
}
if (deltaY > 0) {
Logger.show(Log.INFO,logTag, "Swipe Bottom to Top");
mSwipeDetected = Action.BT;
return false;
}
}
return true;
}
}
return false;
}
}
+11
为什么你不分享所有的源代码? – mehmetakifalp
答
我想你可以通过MotionEvents
使用OnTouchListener
和捕捉填充,初始和当前运动运动名录的项目,如ACTION_DOWN
,ACTION_MOVE
,UP
或CANCEL
。
可能,这将帮助:http://*.com/questions/4139288/android-how-to-handle右向左滑动手势 – g00dy
请注意您所谈论的联系人事项仅适用于三星手机。 –