pinch zoom doesn't zoom out on move to next fragment page

Question

I had done pinch zoom with this polidea Zoomview.I have implemented this pinch zoom code in fragment page.

ZoomView zoomView;

//inside onCreateView method

zoomView= new ZoomView(getActivity());
zoomView.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));

zoomView.addView(gridTable);
zoomView.setRotationY(180);
gridviewlayout.addView(zoomView);

zoomview jar

Pinch Zoom in and Zoom out was working in gridview table page.But If I zoom-in a page and then scroll to next fragment page.After that when i go back to previous fragment page,the page is still in zoomed state.

What I am trying to do is reset the page in normal state when I move to next fragment page.

I searched a lot of samples.But Everything is related to Imageview.I didn't get any sample for pinch zoom in fragments with layout.

Anyone can help me with this.Thank you.

Answer 1

add below code to your fragment:

@Override
public void setUserVisibleHint(boolean isVisibleToUser) {
    super.setUserVisibleHint(isVisibleToUser);
    if(!isVisibleToUser){
        if(mZoomView != null)mZoomView.zoomTo(1,0,0);
    }
}