我正在使用Android启动新Android应用程序时启动的默认滑动选项卡片段代码。我已经弄清楚如何修改我的数据并使用选项卡,但我还没想出如何将一个简单的片段添加到已经存在的内容中。我想在标签的顶部或正下方添加一个信息栏。我确定这很简单,我只是无法弄清楚怎么哈哈。我通过例子学习。
我已经尝试为viewpager添加一个视图,但我的应用程序崩溃了,我相信我做错了。
在我的MainActivity中: ...
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Set up the action bar.
final ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
mSectionsPagerAdapter = new SectionsPagerAdapter(
getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
SubBarFragment infobar = new SubBarFragment();
mViewPager.addView(infobar.getView());
.....[extra code for menus and things]
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
....[code to show specific tabs and return the tab's fragment]
infobarfragment.java
public class InfobarFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.infobar, container, false);
return view;
}
}
activity_main.xml中
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" />
infobar.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_wifi" />
<TextView
android:id="@+id/statusText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="Wifi Status Information" />
</LinearLayout>