ViewPager OnItemClickListener

I implemented custom ViewPager:

public class ClickableViewPager extends ViewPager {

    private OnItemClickListener mOnItemClickListener;

    public ClickableViewPager(Context context) {
        super(context);
        setup();
    }

    public ClickableViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
        setup();
    }

    private void setup() {
        final GestureDetector tapGestureDetector = new    GestureDetector(getContext(), new TapGestureListener());

        setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                tapGestureDetector.onTouchEvent(event);
                return false;
            }
        });
    }

    public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
        mOnItemClickListener = onItemClickListener;
    }

    public interface OnItemClickListener {
        void onItemClick(int position);
    }

    private class TapGestureListener extends GestureDetector.SimpleOnGestureListener {

        @Override
        public boolean onSingleTapConfirmed(MotionEvent e) {
            if(mOnItemClickListener != null) {
                mOnItemClickListener.onItemClick(getCurrentItem());
            }
            return true;
       }
    }
}

And code to implement onItemClickListener

ClickableViewPager viewPager = (ClickableViewPager) findViewById(R.id.viewPager);
viewPager.setOnItemClickListener(new ClickableViewPager.OnItemClickListener() {
            @Override
            public void onItemClick(int position) {
                // your code
            }
        });

There is no OnItemClick callback method for ViewPager. If you want click events on each page then you'll have to build your listener into the page content within your Adapter.

something like this:

@Override
public Object instantiateItem(View collection, final int pos) { //have to make final so we can see it inside of onClick()
    LayoutInflater inflater = (LayoutInflater) collection.getContext()
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);


    View page = inflater.inflate(R.layout.YOUR_PAGE, null);

    page.setOnClickListener(new OnClickListener(){
        public void onClick(View v){
            //this will log the page number that was click
            Log.i("TAG", "This page was clicked: " + pos);
        }
    });


    ((ViewPager) collection).addView(page, 0);
    return page;
}

exactly what you need will depend a bit on what else you are doing inside of instantiateItem() which you haven't posted so I can't give you a more specific answer.

in your activity; you can override :

 @Override
    public boolean dispatchTouchEvent(MotionEvent ev) {
        switch (ev.getAction()) {
            case MotionEvent.ACTION_DOWN:
                mDownX = ev.getX();
                mDownY = ev.getY();
                break;
            case MotionEvent.ACTION_UP:
                mDownX -= ev.getX();
                mDownY -= ev.getY();
                if(mDownX==0 && mDownY==0)
                   {
                      your action if click
                   }
                break;

        }
        return super.dispatchTouchEvent(ev);
    }

I'm not sure what you would be expecting to have respond to you with the above listener.

There is a setOnClickListener(View.OnClickListener l) that you can use to detect a touch to the viewPager.

You can also use onPageScrolled to get user input, and onPageSelected and onTabSelected.

@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}

@Override
public void onPageSelected(int position) {
    mActionBar.setSelectedNavigationItem(position);
}

@Override
public void onPageScrollStateChanged(int state) {
}

@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
    Object tag = tab.getTag();
    for (int i=0; i<mTabs.size(); i++) {
        if (mTabs.get(i) == tag) {
            mViewPager.setCurrentItem(i);
        }
    }
}