Is it possible to have a ViewPager inside of a ScrollView?
I've figured it out;
I needed to add android:fillViewport="true"
to the ScrollView element.
Yes it is possible to have viewpager inside scrollview.
Use below code and you will achieve your goal, i have done the same in my code as well.
public class WrapContentHeightViewPager extends ViewPager {
public WrapContentHeightViewPager(Context context) {
super(context);
}
public WrapContentHeightViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int height = 0;
for (int i = 0; i < getChildCount(); i++) {
View child = getChildAt(i);
child.measure(widthMeasureSpec, View.MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
int h = child.getMeasuredHeight();
if (h > height) height = h;
}
heightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
@Override
public boolean onTouch(View v, MotionEvent event) {
int dragthreshold = 30;
int downX = 0;
int downY = 0;
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
downX = (int) event.getRawX();
downY = (int) event.getRawY();
break;
case MotionEvent.ACTION_MOVE:
int distanceX = Math.abs((int) event.getRawX() - downX);
int distanceY = Math.abs((int) event.getRawY() - downY);
if (distanceY > distanceX && distanceY > dragthreshold) {
mViewPager.getParent().requestDisallowInterceptTouchEvent(false);
mScrollView.getParent().requestDisallowInterceptTouchEvent(true);
} else if (distanceX > distanceY && distanceX > dragthreshold) {
mViewPager.getParent().requestDisallowInterceptTouchEvent(true);
mScrollView.getParent().requestDisallowInterceptTouchEvent(false);
}
break;
case MotionEvent.ACTION_UP:
mScrollView.getParent().requestDisallowInterceptTouchEvent(false);
mViewPager.getParent().requestDisallowInterceptTouchEvent(false);
break;
}
return false;
}
Hope this aids someone in resolving scroll issues with nested ViewPager within a ScrollView.