我知道这里有很多关于这个话题的讨论。我也多次阅读了文档，但我找不到从活动传递数据到片段的最佳方法。
我想能够使用带选项卡的滑动视图在两个不同的布局（列表和地图）中显示我的可搜索活动的结果。我必须向片段传递2个数据：“currentLocation”是当前用户位置，“result”是对象列表。
为了使内容更易理解，我省略了代码的某些部分。
我想能够使用带选项卡的滑动视图在两个不同的布局（列表和地图）中显示我的可搜索活动的结果。我必须向片段传递2个数据：“currentLocation”是当前用户位置，“result”是对象列表。
为了使内容更易理解，我省略了代码的某些部分。
SearchableActivity.java
public class SearchableActivity extends ActionBarActivity implements TabListener {
List<PlaceModel> result = new ArrayList<PlaceModel>();
private SearchView mSearchView;
private String currentLocation;
AppSectionsPagerAdapter mAppSectionsPagerAdapter;
ViewPager mViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_searchable);
final ActionBar actionBar = getSupportActionBar();
actionBar.setHomeButtonEnabled(true);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
mAppSectionsPagerAdapter = new AppSectionsPagerAdapter(getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mAppSectionsPagerAdapter);
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
actionBar.addTab(actionBar.newTab().setText("List").setTabListener(this));
actionBar.addTab(actionBar.newTab().setText("Map").setTabListener(this));
// get currentLocation here
handleIntent(getIntent());
}
@Override
protected void onNewIntent(Intent intent) {
handleIntent(intent);
}
private void handleIntent(Intent intent) {
if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
final String query = intent.getStringExtra(SearchManager.QUERY);
// get result here
}
}
@Override
public void onTabReselected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction arg1) {
mViewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
}
PlaceListFragment.java
public class PlaceListFragment extends Fragment {
ListView listViewData;
PlaceAdapter placeAdapter;
List<PlaceModel> result = new ArrayList<PlaceModel>();
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_list, container, false);
Bundle args = getArguments();
listViewData = (ListView) rootView.findViewById(android.R.id.list);
// I will pass result and currentLocation here
placeAdapter = new PlaceAdapter(getActivity(), R.layout.fragment_list_item, result, currentLocation);
listViewData.setAdapter(placeAdapter);
return rootView;
}
}
AppSectionsPagerAdapter.java
public class AppSectionsPagerAdapter extends FragmentPagerAdapter {
final int PAGE_COUNT = 2;
public AppSectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int arg0) {
Bundle data = new Bundle();
switch(arg0) {
case 0:
PlaceListFragment fragment1 = new PlaceListFragment();
fragment1.setArguments(data);
return fragment1;
default:
PlaceListFragment fragment2 = new PlaceListFragment();
fragment2.setArguments(data);
return fragment2;
}
}
@Override
public int getCount() {
return PAGE_COUNT;
}
}