1.簡介
我們在應用viewpager的時候,經常會使用TabPageIndicator來與其配合。達到很漂亮的效果。但是TabPageIndicator是第三方的,而且比較老了,當然了現在很多大神都已經開始自己寫TabPageIndicator來滿足自己的需求,在2015年的google大會上,google釋出了新的Android Support Design庫,裡面包含了幾個新的控件,其中就有一個TabLayout,它就可以完成TabPageIndicator的效果,而且還是官方的,最好的是它可以相容到2.2以上版本,包括2.2。下面我就舉一個簡單的例子來使用它。
使用的 android studio進行開發的,是以引用TabLayout很簡單,隻要在build.gradle中加入 compile 'com.android.support:design:23.3.0'即可。
2.引用庫
compile 'com.android.support:design:24.2.1'
布局
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include layout="@layout/titlebar" />
<android.support.design.widget.TabLayout
android:id="@+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/holo_blue_bright"
app:tabIndicatorColor="@android:color/background_dark"
app:tabSelectedTextColor="@android:color/background_dark"
app:tabTextColor="@android:color/white" />
<android.support.v4.view.ViewPager
android:id="@+id/viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
定義和建立MyFragment
/**
* 項目名:Software_Framework
* 包名:com.chengdong.software_framework.TableLayout.Fragmnet
* 檔案名:MyFragment
* 建立者:周成東
* 建立時間:2017/9/15 22:46
* 描述:ToDo
*/
public class MyFragment extends Fragment {
private String title;
public String getTitle() {
return title;
}
public String getContent() {
return content;
}
private String content;
private TextView textView;
private Context context;
public MyFragment(String title, String content) {
this.title = title;
this.content = content;
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.context = getActivity();
}
/**
* 綁定數據
*
* @param savedInstanceState
*/
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
textView.setText(content);
super.onActivityCreated(savedInstanceState);
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
textView = new TextView(context);
textView.setTextSize(18);
textView.setTextColor(Color.RED);
textView.setGravity(Gravity.CENTER);
return textView;
}
}
設定viewpager擴充卡
public class TalbeLayoutAdapter extends FragmentPagerAdapter {
private final ArrayList<MyFragment> mFragments;
public TalbeLayoutAdapter(FragmentManager fm, ArrayList<MyFragment> myFragments) {
super(fm);
this.mFragments=myFragments;
}
@Override
public Fragment getItem(int position) {
return mFragments.get(position);
}
@Override
public int getCount() {
return mFragments.size();
}
@Override
public CharSequence getPageTitle(int position) {
return mFragments.get(position).getTitle();
}
}
設定TableLayoutActivity
public class TableLayoutActivity extends FragmentActivity {
@Bind(R.id.tv_title)
TextView tvTitle;
@Bind(R.id.tabLayout)
TabLayout tabLayout;
@Bind(R.id.viewPager)
ViewPager viewPager;
private ArrayList<MyFragment> myFragments;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tab_layout_main);
ButterKnife.bind(this);
tvTitle.setText("TableLayout的使用");
myFragments = new ArrayList<>();
for(int i=0;i<12;i++){
myFragments.add(new MyFragment("标題"+i,"内容"+i));
}
TalbeLayoutAdapter adapter=new TalbeLayoutAdapter(getSupportFragmentManager(),myFragments);
viewPager.setAdapter(adapter);
tabLayout.setupWithViewPager(viewPager);
tabLayout.setTabMode(TabLayout.MODE_SCROLLABLE);
}
}