列表视图项刷卡左,右轻扫? [英] List view item swipe left and swipe right?
本文介绍了列表视图项刷卡左,右轻扫?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
能否列表视图项响应刷卡左,右轻扫?
Can a List view item respond to swipe left and swipe right?
如果是这样,如何申请留的Android轻扫或向右滚动,打开不同的意图是什么?我想在Android的联系人视图在默认情况下同样喜欢呼叫电话或消息。
If so, how to apply android swipe left or right scrolling to open different intent? I want same like Call phone or message on contact view in android by default.
感谢
推荐答案
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;
}
}
这篇关于列表视图项刷卡左,右轻扫?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文