Question

I have one button that I’d like to go back and forth between two pages in a ViewPager. I know how to make a button go to the specific page. I just want the same button to go back to the previous page OnClick. And for them to cycle between just those 2 pages out of 3.

Here’s what I already have.

I’m sure this is very simple to do, but
since I’m still a java noob, any code examples would be fantastic!

settingsButton = (ImageButton) findViewById(R.id.settingsButton);
    settingsButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            mPager.setCurrentItem(0, true);
        }
    });

Thanks!

Answer 1

use ViewPager.getCurrentItem() to get Current item from ViewPager then move it next or Previous as :

settingsButton = (ImageButton) findViewById(R.id.settingsButton);
    settingsButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
             // get Current Item from ViewPager
            int currentpage=mPager.getCurrentItem();
            switch(currentpage){

             case 0:
             mPager.setCurrentItem(1, true);
             break;
             case 1:
             mPager.setCurrentItem(0, true); 
             break;
            }
        }
    });