My current project uses some ListFragments
to show rows of data.
The rows get updated dynamically every some seconds. The amount of rows varies with every update and in every ListFragment
.
I would like to show the amount of rows to the user, and think that the perfect place for that would be next to the Fragment
's title in the ViewPagerIndicator. I provided a sample image for better comprehension:
Sadly I am pretty clueless how to achieve this. I tried the following:
public class PagerAdapter extends FragmentPagerAdapter {
private int numOne = 0;
private int numTwo = 0;
// ...
@Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "List 1 (" + numOne + ")";
case 1:
return "List 2 (" + numTwo + ")";
default:
return "";
}
public void setNumOne(int num) {
this.numOne = num;
}
public void setNumTwo(int num) {
this.numTwo = num;
}
}
When I now call the setNumXXX()
method, nothing happens, until I move between fragments, what seems to trigger the getPageTitle()
to fire.
My question is: How can I force an update of the title(s), everytime when the num
value changes?
If you call notifyDataSetChanged()
on the indicator instance it will redraw itself and grab the new titles.
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