Java 我应该如何更改此代码以更自由地向左/向右滑动?
问题是,我必须几乎严格地水平滑动,才能使滑动操作正常工作。我想在刷卡时有更多的自由。我希望当我沿对角线方向滑动时,滑动也能起作用。我应该如何更改此代码 这是密码Java 我应该如何更改此代码以更自由地向左/向右滑动?,java,android,swipe,ontouchlistener,Java,Android,Swipe,Ontouchlistener,问题是,我必须几乎严格地水平滑动,才能使滑动操作正常工作。我想在刷卡时有更多的自由。我希望当我沿对角线方向滑动时,滑动也能起作用。我应该如何更改此代码 这是密码 public class OnSwipeTouchListener implements OnTouchListener { Context context = null; private final GestureDetector gestureDetector = new GestureDetector(context,
public class OnSwipeTouchListener implements OnTouchListener {
Context context = null;
private final GestureDetector gestureDetector = new GestureDetector(context, new GestureListener());
public boolean onTouch(final View view, final MotionEvent motionEvent) {
return gestureDetector.onTouchEvent(motionEvent);
}
private final class GestureListener extends SimpleOnGestureListener {
private static final int SWIPE_THRESHOLD = 100;
private static final int SWIPE_VELOCITY_THRESHOLD = 100;
@Override
public boolean onDown(MotionEvent e) {
return true;
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
boolean result = false;
try {
float diffY = e2.getY() - e1.getY();
float diffX = e2.getX() - e1.getX();
if (Math.abs(diffX) > Math.abs(diffY)) {
if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
if (diffX > 0) {
onSwipeRight();
} else {
onSwipeLeft();
}
}
} else {
if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
if (diffY > 0) {
onSwipeBottom();
} else {
onSwipeTop();
}
}
}
} catch (Exception exception) {
exception.printStackTrace();
}
return result;
}
}
更改此选项:
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
boolean result = false;
try {
float diffY = e2.getY() - e1.getY();
float diffX = e2.getX() - e1.getX();
------> if (Math.abs(diffX) > Math.abs(diffY)) { <------
if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
if (diffX > 0) {
onSwipeRight();
} else {
onSwipeLeft();
}
}
} else {.....
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
boolean result = false;
try {
float diffY = e2.getY() - e1.getY();
float diffX = e2.getX() - e1.getX();
------> if (Math.abs(diffX) > Math.abs(diffY) - 50) { <------
if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
if (diffX > 0) {
onSwipeRight();
} else {
onSwipeLeft();
}
}
} else {.....
请看我的答案,它应该对你有用。请也接受这个答案,点击上方的小复选标记。这个答案对你有用:)这样我们都会获得一些声誉。谢谢你的答案我还没有试过。我会检查它是否有效。我希望我能帮上忙。我试过你的答案了。刷起作用了,但没有改善。
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
boolean result = false;
try {
float diffX = e2.getX() - e1.getX();
if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
if (diffX > 0) {
onSwipeRight();
} else {
onSwipeLeft();
}
}
} catch (Exception exception) {
exception.printStackTrace();
}
return result;