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| import android.support.v7.widget.RecyclerView; | |
| public class RecyclerViewSwipeListener extends RecyclerView.OnFlingListener { | |
| private static final int SWIPE_THRESHOLD = 100; | |
| private static final int SWIPE_VELOCITY_THRESHOLD = 100; | |
| boolean mIsScrollingVertically; | |
| // change swipe listener depending on whether we are scanning items horizontally or vertically | |
| RecyclerViewSwipeListener(boolean vertical) { | |
| mIsScrollingVertically = vertical; | |
| } | |
| @Override | |
| public boolean onFling(int velocityX, int velocityY) { | |
| if (mIsScrollingVertically && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) { | |
| if (velocityY < 0) { | |
| onSwipeDown(); | |
| } else { | |
| onSwipeUp(); | |
| } | |
| return true; | |
| } else if (!mIsScrollingVertically && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) { | |
| if (velocityX < 0) { | |
| onSwipeLeft(); | |
| } else { | |
| onSwipeRight(); | |
| } | |
| return true; | |
| } | |
| return false; | |
| } | |
| public void onSwipeRight() { | |
| } | |
| public void onSwipeLeft() { | |
| } | |
| public void onSwipeUp() { | |
| } | |
| public void onSwipeDown() { | |
| } | |
| } |
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