Tablayout的基础使用

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gradle中添加依赖

*compile'com.android.support:design:26+'

/** * 1--写tablayout * 2--- 写viewPager * 3-- 写viewPagerAdapter * 4-- 让TabLayout和Viewpager关联; */

布局文件代码

<?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"    tools:context="com.bwie.tablayoutdemo2.MainActivity">    <android.support.design.widget.TabLayout        android:id="@+id/tabLayout"        android:layout_width="match_parent"        android:layout_height="wrap_content" />    <android.support.v4.view.ViewPager        android:id="@+id/viewPager"        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="1" /></LinearLayout>

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MainActivity代码,  注意FragmentPagerAdapt中要重写getPageTitle方法;
package com.bwie.tablayoutdemo2;import android.os.Bundle;import android.support.design.widget.TabLayout;import android.support.v4.app.Fragment;import android.support.v4.app.FragmentManager;import android.support.v4.app.FragmentPagerAdapter;import android.support.v4.view.ViewPager;import android.support.v7.app.AppCompatActivity;import java.util.ArrayList;/** * 1--tablayout * 2--- viewPager * 3--viewPagerAdapter * 4-- 让TabLayout和Viewpager关联; */public class MainActivity extends AppCompatActivity {    private TabLayout tabLayout;    private ViewPager viewPager;    ArrayList<Fragment> fragmentList = new ArrayList<Fragment>();    ArrayList<String> titleList = new ArrayList<String>();    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        tabLayout = (TabLayout) findViewById(R.id.tabLayout);        viewPager = (ViewPager) findViewById(R.id.viewPager);        initData();        //ctrl+p 提示参数的快捷键        MPagerAdapter mPagerAdapter = new MPagerAdapter(getSupportFragmentManager());        viewPager.setAdapter(mPagerAdapter);        //设置TabLayout的模式        tabLayout.setTabMode(TabLayout.MODE_FIXED);        //让tablayout和Viewpager关联;        tabLayout.setupWithViewPager(viewPager);    }    private void initData() {        for (int i = 0; i <4 ; i++) {            fragmentList.add(new BlankFragment());            titleList.add("爱因斯坦" +i);        }    }    class  MPagerAdapter extends FragmentPagerAdapter{        public MPagerAdapter(FragmentManager fm) {            super(fm);        }        @Override        public Fragment getItem(int position) {            return fragmentList.get(position);        }        @Override        public int getCount() {            return fragmentList.size();        }        //需要重写个返回标题的方法;        @Override        public CharSequence getPageTitle(int position) {            return titleList.get(position);        }    }}
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Fragment代码,Fragment用的都是V4包里的;
public class BlankFragment extends Fragment {    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        TextView textView = new TextView(getActivity());        double random = Math.random();        textView.setText("xxxxxxxxxxx"+random);        return textView;    }}

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