大佬教程收集整理的这篇文章主要介绍了android – 多个ListFragments的片段管理最佳实践,大佬教程大佬觉得挺不错的,现在分享给大家,也给大家做个参考。
public class OptionsActivity extends Activity { protected TalkFragment talk; protected RunFragment run; protected EatFragment eat; @Override protected void onCreate(Bundle savedInstanceStatE) { super.onCreate(savedInstanceStatE); talk = new TalkFragment(); run = new RunFragment(); eat = new EatFragment(); } } public class TalkFragment extends ListFragment { private cursor mcursor; int mCurcheckPosition = 0; @Override public void onActivityCreated(Bundle savedStatE) { super.onActivityCreated(savedStatE); } @Override public void onListItemClick(ListView l,View v,int pos,long id) { mCurcheckPosition = pos; // We can display everything in-place with fragments. // Have the list highlight this item and show the data. getListView().setItemchecked(pos,truE); // check what fragment is shown,replace if needed. RunFragment run_frag = (RunFragment) getFragmentManager().findFragmentById(R.id.fragment_run); if (run_frag == null || run_frag.getShownIndex() != pos) { run_frag = RunFragment.newInstance(pos); Fragmenttransaction ft = getFragmentManager().begintransaction(); ft.replace(R.id.details,details); ft.setTransition(Fragmenttransaction.TRANSIT_FRAGMENT_FADE); ft.commit(); } } }
这显然只是嗤之以鼻,但你明白了.如果我这样做,我不确定如何正确地传递某些参数片段.理想情况下,RunFragment会根据在TalkFragment中单击的项目的ID知道要显示的内容.这些应该通过活动吗?
public class OptionsActivity extends Activity { protected TalkFragment talk; protected RunFragment run; protected EatFragment eat; @Override protected void onCreate(Bundle savedInstanceStatE) { super.onCreate(savedInstanceStatE); talk = new TalkFragment(); run = new RunFragment(); eat = new EatFragment(); } public void showRunFragment() { showFragment(R.id.fragment_run); } public void showEatFragment() { showFragment(R.id.fragment_eat); } public void showFragment(int fragmentId) { // check what fragment is shown,replace if needed. ... } } public class TalkFragment extends ListFragment { private cursor mcursor; int mCurcheckPosition = 0; @Override public void onActivityCreated(Bundle savedStatE) { super.onActivityCreated(savedStatE); } @Override public void onListItemClick(ListView l,truE); getActivity().showRunFragment() } }
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