Created
August 4, 2016 07:12
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HeaderUntouchableListView
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/** | |
* listView with header untouchable | |
* Created by ninja on 8/3/16. | |
*/ | |
public class HeaderUntouchableListView extends ListView { | |
private View mHeaderView; | |
private boolean isDownEventConsumed; | |
public HeaderUntouchableListView(Context context, AttributeSet attrs) { | |
super(context, attrs); | |
} | |
@Override | |
public void addHeaderView(View v) { | |
super.addHeaderView(v); | |
this.mHeaderView = v; | |
} | |
@Override | |
public void addHeaderView(View v, Object data, boolean isSelectable) { | |
super.addHeaderView(v, data, isSelectable); | |
this.mHeaderView = v; | |
} | |
/** | |
* list header should not consume the event, and list item should consume the event | |
* consumed here is replaced with super.dispatchTouchEvent(motionEvent) | |
* @param motionEvent | |
* @return is event consumed | |
*/ | |
@Override | |
public boolean dispatchTouchEvent(MotionEvent motionEvent) { | |
if(mHeaderView == null) return super.dispatchTouchEvent(motionEvent); | |
if(motionEvent.getAction() == MotionEvent.ACTION_DOWN){ | |
//if touch header not to consume the event | |
Rect rect = new Rect((int) mHeaderView.getX(), (int) mHeaderView.getY(), mHeaderView.getRight(), mHeaderView.getBottom()); | |
if(rect.contains((int)motionEvent.getX(), (int)motionEvent.getY())){ | |
isDownEventConsumed = false; | |
return isDownEventConsumed; | |
}else { | |
isDownEventConsumed = true; | |
return super.dispatchTouchEvent(motionEvent); | |
} | |
}else{ | |
//if touch event not consumed, then move/up event should be the same | |
if(!isDownEventConsumed)return isDownEventConsumed; | |
return super.dispatchTouchEvent(motionEvent); | |
} | |
} | |
} |
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