我想要一個帶有4個可滾動選項卡的選項卡。我實現了下面的例子,它的工作原理:FragmentPagerAdapter中的片段
mAdapter = new MyAdapter(getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mAdapter);
...
public static class MyAdapter extends FragmentPagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
@Override
public int getCount() {
return NUM_ITEMS; //NUM_ITEMS=4
}
@Override
public ArrayListFragment getItem(int position) {
return ArrayListFragment.newInstance(position);
}
@Override
public CharSequence getPageTitle(int position) {
switch(position) {
case 0:
return "TAB1";
case 1:
return "TAB2";
case 2:
return "TAB3";
case 3:
return "TAB4";
default:
return "ERROR";
}
}
}
...
public static class ArrayListFragment extends ListFragment {
int mNum;
static ArrayListFragment newInstance(int num) {
ArrayListFragment f = new ArrayListFragment();
Bundle args = new Bundle();
args.putInt("num", num);
f.setArguments(args);
return f;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mNum = getArguments() != null ? getArguments().getInt("num") : 1;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
switch(mNum) {
case 0:
View v0 = inflater.inflate(R.layout.fragment_pager_list, container, false);
return v0;
case 1:
View v1 = inflater.inflate(R.layout.fragment_pager_list, container, false);
return v1;
case 2:
View v2 = inflater.inflate(R.layout.fragment_pager_list, container, false);
return v2;
case 3:
View v3 = inflater.inflate(R.layout.fragment_pager_list, container, false);
return v3;
default:
View vd = inflater.inflate(R.layout.fragment_pager_list, container, false);
return vd;
}
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setListAdapter(new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, Titles));
}
//Titles={"TAB1", "TAB2", "TAB3", "TAB4"}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
Log.i("FragmentList", "Item clicked: " + id);
}
}
其中fragment_pager_list的佈局,我把每一個觀點是:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:drawable/gallery_thumb">
<TextView android:id="@+id/text"
android:layout_width="match_parent" android:layout_height="wrap_content"
android:gravity="center_vertical|center_horizontal"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="HELLO WORLD"/>
<!-- The frame layout is here since we will be showing either
the empty view or the list view. -->
<FrameLayout
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="1" >
<!-- Here is the list. Since we are using a ListActivity, we
have to call it "@android:id/list" so ListActivity will
find it -->
<ListView android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:drawSelectorOnTop="false"/>
<!-- Here is the view to show if the list is emtpy -->
<TextView android:id="@android:id/empty"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="No items."/>
</FrameLayout>
問題是我想爲每個選項卡在每個視圖中放置不同的佈局。 我試圖修改代碼,以便「ArrayListFragment」從「Fragment」而不是「ListFragment」繼承來加載不包含「ListView」但「RelativeLayout」或「LinearLayout」但不能使其工作的佈局。
如果有人能幫助我,我需要加載不同的視圖在選項卡上,並且它們包含除ListView以外的其他元素。
非常感謝。
通過使用ListFragment自動檢測佈局中的ListView ...我必須在佈局中實現的方法檢測它使用Fragment而不是ListFragment,並可以在每個選項卡的視圖中看到它? A <片段...>? 謝謝。 – KryNaC