我有一个可点击的多个ImageViews
的应用。所有这些图像都在LinearLayout
内。
我实施了OnTouchListener
并将其设置为LinearLayout
。当我滑过它时,我的OnTouchListener
会调用一个函数。
如果我开始滑动没有ImageViews
OnClickListener
OnTouchListener
工作的OnClickListener
,那么当我开始扫描一张{{1}的图片时}},那么OnTouch
函数不起作用({1}}的{{1}}也不正常。
我想知道是否有办法让我的OnClick
ImageView
将动作传递到下面的视图,如果用户滑动而不是点击,如果用户只是点击则不传递
提前致谢
答案 0 :(得分:3)
我设法做到了,我找到的唯一方法就是使用SimpleOnGestureListener。如果有人遇到同样的问题,我会复制粘贴代码。
创建一个这样的类:
public abstract class MyGestureDetector extends SimpleOnGestureListener {
private static final int SWIPE_MIN_DISTANCE = 100;
private static final int SWIPE_THRESHOLD_VELOCITY = 50;
private GestureDetector gestureDetector;
private View.OnTouchListener gestureListener;
private Activity activity;
public MyGestureDetector(Activity activity) {
this.activity = activity;
gestureDetector = new GestureDetector(this);
gestureListener = new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
return gestureDetector.onTouchEvent(event);
}
};
}
public abstract void onRightToLeftSwipe();
public abstract void onLeftToRightSwipe();
public abstract void onTopToBottomSwipe();
public abstract void onBottomToTopSwipe();
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velX,
float velY) {
DisplayMetrics dm = activity.getResources().getDisplayMetrics();
int REL_SWIPE_MIN_DISTANCE = (int) (SWIPE_MIN_DISTANCE * dm.densityDpi / 160.0f);
int REL_SWIPE_THRESHOLD_VELOCITY = (int) (SWIPE_THRESHOLD_VELOCITY
* dm.densityDpi / 160.0f);
float deltaX = e1.getX() - e2.getX();
float deltaY = e1.getY() - e2.getY();
try {
// swipe horizontal?
if ((Math.abs(deltaX) > REL_SWIPE_MIN_DISTANCE)
&& (Math.abs(velX) > REL_SWIPE_THRESHOLD_VELOCITY)
&& (Math.abs(deltaX) > Math.abs(deltaY))) {
// left or right
if (deltaX < 0) {
this.onLeftToRightSwipe();
return true;
}
if (deltaX > 0) {
this.onRightToLeftSwipe();
return true;
}
} else if ((Math.abs(deltaY) > REL_SWIPE_MIN_DISTANCE)
&& (Math.abs(velY) > REL_SWIPE_THRESHOLD_VELOCITY)) { // swipe
// vertical
// top or down
if (deltaY < 0) {
this.onTopToBottomSwipe();
return true;
}
if (deltaY > 0) {
this.onBottomToTopSwipe();
return true;
}
} else {
return false; // We don't consume the event
}
} catch (Exception e) {
// nothing
}
return false;
}
public View.OnTouchListener getGestureListener() {
return gestureListener;
}
public void setGestureListener(View.OnTouchListener gestureListener) {
this.gestureListener = gestureListener;
}
}
然后你必须在你的Activity中执行此操作:
public void onCreate(Bundle savedInstanceState) {
// Initializate your variables here
// Using Gestures
MyGestureDetector gestos = new MyGestureDetector(this) {
@Override
public void onTopToBottomSwipe() {
// Do whatever
}
@Override
public void onRightToLeftSwipe() {
// Do whatever
}
@Override
public void onLeftToRightSwipe() {
// Do whatever
}
@Override
public void onBottomToTopSwipe() {
// Do whatever
}
};
最后,但并非最不重要的是,你必须将TouchListener放到你想要在其中滑动的布局中,并且每个视图都是可以点击的布局
layoutSwipe = (LinearLayout) findViewById(R.id.layoutSwipe);
layoutSwipe.setOnTouchListener(gestos.getGestureListener());
viewInsidells.setOnTouchListener(gestos.getGestureListener());
view2Insidells.setOnTouchListener(gestos.getGestureListener());
有了这个,你可以在你的布局中制作你的视图,如果你点击它只会执行你点击的视图的点击动作,如果你滑动它只会根据你的动作执行滑动动作。
我花了4个小时试图解决这个问题,希望我能节省一些时间到下一个。