I am using view-pager.In that I have three tabs : 1. History , 2. Main , 3. Map .
I have stopwatch into main activity.When I press the start and then after stop at that time value of the stopwatch add into the sqlite DB. And into history activity I am fetching the value of stopwatch from DB and store into the listview. It's working perfect.
But now I want the update the History activity when I swipe from the Main > History so After press the stop button,I got the last value into listview of history activity.
My question is how can I update the view on swipe the viewpager?
public class SwipeyTabsSampleActivity extends FragmentActivity {
private static final String [] TITLES = {
"HISTORY",
"MAIN",
"MAP"
};
private SwipeyTabs mTabs;
private ViewPager mViewPager;
//Handler handler=new Handler();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_swipeytab);
mViewPager = (ViewPager) findViewById(R.id.viewpager);
mTabs = (SwipeyTabs) findViewById(R.id.swipeytabs);
SwipeyTabsPagerAdapter adapter = new SwipeyTabsPagerAdapter(this,
getSupportFragmentManager());
mViewPager.setAdapter(adapter);
mTabs.setAdapter(adapter);
mViewPager.setOnPageChangeListener(mTabs);
mViewPager.setCurrentItem(1);
mViewPager.setOffscreenPageLimit(3);
}
private class SwipeyTabsPagerAdapter extends FragmentPagerAdapter implements
SwipeyTabsAdapter, ViewPager.OnPageChangeListener {
private final Context mContext;
ViewPager viewpager;
public SwipeyTabsPagerAdapter(Context context, FragmentManager fm, ViewPager mViewPager) {
super(fm);
this.mContext = context;
viewpager = mViewPager;
//viewpager.setAdapter(this);
viewpager.setOnPageChangeListener(this);
}
@Override
public Fragment getItem(int position) {
Fragment f = new Fragment();
switch (position) {
case 0:
f = History.newInstance(position);
break;
case 1:
f = Main.newInstance(position);
break;
case 2:
f = Map.newInstance(position);
break;
}
return f;
}
@Override
public int getCount() {
return TITLES.length;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
ViewPager pager = (ViewPager) container;
View view = (View) object;
pager.removeView(view);
}
public TextView getTab(final int position, SwipeyTabs root) {
TextView view = (TextView) LayoutInflater.from(mContext).inflate(
R.layout.swipey_tab_indicator, root, false);
view.setText(TITLES[position]);
view.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
mViewPager.setCurrentItem(position);
}
});
return view;
}
@Override
public void onPageScrollStateChanged(int state) {
// TODO Auto-generated method stub
}
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
// TODO Auto-generated method stub
}
@Override
public void onPageSelected(int positiion) {
// TODO Auto-generated method stub
}
}
}
Take one string and add the Getters and setters into your FragmentActivity
class.
Like...
String HistoryFragment;
public String getHistoryFragment() {
return HistoryFragment;
}
public void setHistoryFragment(String historyFragment) {
HistoryFragment = historyFragment;
}
Then after we can access another fragment from our current fragment by calling findFragmentByTag(<tag of target fragment>)
.
For the more information check the link Communication between Fragments in ViewPager.