Android Swipe on List

I had the same problem and I didn't find my answer here.

I wanted to detect a swipe action in ListView item and mark it as swiped, while continue to support OnItemClick and OnItemLongClick.

Here is me solution:

1st The SwipeDetector class:

import android.util.Log; import android.view.MotionEvent; import android.view.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 // 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; } @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_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 if (Math.abs(deltaY) > MIN_DISTANCE) { // vertical swipe // detection // 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; } } 

2nd I use the swipe detector class in the list view:

 final ListView lv = getListView(); final SwipeDetector swipeDetector = new SwipeDetector(); lv.setOnTouchListener(swipeDetector); lv.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 } } }); lv.setOnItemLongClickListener(new OnItemLongClickListener() { @Override public boolean onItemLongClick(AdapterView<?> parent, View view,int position, long id) { if (swipeDetector.swipeDetected()){ // do the onSwipe action } else { // do the onItemLongClick action } } }); 

This way I can support 3 actions - swipe, click, long click and I can use the ListView item info.

ADDED LATER:

Since ListView catches a scrolling action, it is sometimes hard to swipe. To fix it, I made the following change to SwipeDetector.onTouch:

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) { Log.i(logTag, "Swipe Left to Right"); mSwipeDetected = Action.LR; return true; } if (deltaX > 0) { Log.i(logTag, "Swipe Right to Left"); mSwipeDetected = Action.RL; return true; } } else // vertical swipe detection if (Math.abs(deltaY) > VERTICAL_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 true; } } return false; }