Android Design Support 中的 TabLayout 的使用
May 21, 2016Android Material Design控件之一 TabLayout ，在很多app上都有应用。使用起来非常的方便和美观。
添加依赖
compile 'com.android.support:design:23.3.0'
示例：
添加主布局文件
MainActivity.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.TabLayout
android:id="@+id/tl_main"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.design.widget.TabLayout>
<android.support.v4.view.ViewPager
android:id="@+id/vp_content"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_weight="1">
</android.support.v4.view.ViewPager>
</LinearLayout>
</LinearLayout>
适配类
MyPagerAdapter
/**
* Created by leon0001 on 2016/5/21.
*/
class MyPagerAdapter extends FragmentPagerAdapter {
List<Fragment> list; //填充到ViewPager的fragment列表
List<String> title; //tab中的title文字列表
public MyPagerAdapter(FragmentManager fm, List<Fragment> list, List<String>title) {
super(fm);
this.list = list;
this.title = title;
}
//获取所对应的fragment
@Override
public Fragment getItem(int position) {
return list.get(position);
}
//FragmentPager的个数
@Override
public int getCount() {
return list.size();
}
@Override
public CharSequence getPageTitle(int position) {
return title.get(position);
}
}
创建BaseFragment类，留空，暂时没什么用，只是方便拓展一些。
BaseFragment
public class BaseFragment extends Fragment{
}
创建三个Fragment类
public class ContentFragment extends BaseFragment {
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_content, container, false);
return view;
}
}
public class MusicFragment extends BaseFragment {
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_music, container, false);
return view;
}
}
public class OtherFragment extends BaseFragment {
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_other, container, false);
return view;
}
}
创建对应的三个 Fragment布局文件，如：
fragment_content.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:text="个性推荐"
android:textSize="40sp"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
其余两个 fragment_other、fragment_music 布局文件类似
最后一步，在MainActivity中初始化。
private void initFragment(){
mViewPager = (ViewPager) findViewById(R.id.vp_content);
mTabLayout = (TabLayout) findViewById(R.id.tl_main);
BaseFragment fragment1 = new ContentFragment();
BaseFragment fragment2 = new MusicFragment();
BaseFragment fragment3 = new OtherFragment();
mViewList.add(fragment1);
mViewList.add(fragment2);
mViewList.add(fragment3);
mTitleList.add("个性推荐");
mTitleList.add("音乐");
mTitleList.add("其他");
mTabLayout.setTabMode(TabLayout.MODE_FIXED);
mTabLayout.addTab(mTabLayout.newTab());
mTabLayout.addTab(mTabLayout.newTab());
mTabLayout.addTab(mTabLayout.newTab());
MyPagerAdapter myPagerAdapter = new MyPagerAdapter(getSupportFragmentManager()
,mViewList
,mTitleList);
mViewPager.setAdapter(myPagerAdapter);
mTabLayout.setupWithViewPager(mViewPager);
//mTabLayout.setTabsFromPagerAdapter(myPagerAdapter);
}
最后在 Oncreate() 中执行 initFragment();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initFragment();
}