I'm having some issue with using a ViewPager and two different layouts for
my app. My app has a listing and details view. When the device is in
potrait, I'm using a ViewPager, where the user can swipe between the
different detail views and when the device is in landscape, I'm showing
both view on the screen. The issue I'm having is when the device is
rotated from portait to landscape, the menu items in the Actionbar are
duplicating and each time I rotate from portrait to landscape, they
duplicate over and over so the entire Actionbar is full of icons. When I
put a breakpoint in onCreateOptionsMenu, the breakpoint is hit over and
over and over when the device is rotated. This is the applicable code:
*Starting activity:*
public class Main extends SherlockFragmentActivity {
private static List<Fragment> fragments;
@Override
public void onCreate(final Bundle icicle)
{
setContentView(R.layout.main);
}
@Override
public void onResume()
{
mViewPager = (ViewPager)findViewById(R.id.viewpager);
if (mViewPager != null) //landscape layout doesn't user a viewpager
{
fragments = new ArrayList<Fragment>();
fragments.add(new MyListFragment()); //fragment with the
ListView
fragments.add(MyDetailFragment.newInstance(0));
fragments.add(MyDetailFragment.newInstance(1));
fragments.add(MyDetailFragment.newInstance(2));
mMyFragmentPagerAdapter = new
MyFragmentPagerAdapter(getSupportFragmentManager());
mViewPager.setAdapter(mMyFragmentPagerAdapter);
}
}
private static class MyFragmentPagerAdapter extends
FragmentStatePagerAdapter {
public MyFragmentPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int index) {
return fragments.get(index);
}
@Override
public int getCount() {
return 4;
}
@Override
public int getItemPosition(Object object) {
return POSITION_NONE;
}
}
}
*Main Layout (portrait):*
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="vertical"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_height="match_parent"
android:layout_width="match_parent"
/>
</RelativeLayout>
*Main Layout (landscape):*
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android";
android:orientation="horizontal"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:weightSum="3"
>
<fragment android:name="com.app.MyListFragment"
android:id="@+id/fragmentList"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="fill_parent"
/>
<fragment android:name="com.app.MyDetailFragment"
android:id="@+id/fragmentDetail"
android:layout_width="0dp"
android:layout_weight="2"
android:layout_height="fill_parent"
/>
</LinearLayout>
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