TabLayout与ViewPager和Fragment、FragmentPagerAdapter的合用
2017-03-20 13:57
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<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context="com.china.anonymous.viewpagedemotwo.MainActivity"> <android.support.design.widget.TabLayout android:id="@+id/tabs" app:tabIndicatorColor="@color/colorAccent" app:tabSelectedTextColor="@color/colorAccent" app:tabTextColor="@color/colorPrimaryDark" app:tabMode="fixed" android:layout_width="match_parent" android:layout_height="wrap_content"></android.support.design.widget.TabLayout> <android.support.v4.view.ViewPager android:id="@+id/viewPager" android:layout_width="match_parent" android:layout_height="wrap_content"></android.support.v4.view.ViewPager> </LinearLayout>
Fragment的布局文件,3个一样的:layout1.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"><ImageViewandroid:src="@mipmap/ic_launcher"android:layout_width="wrap_content"android:layout_height="wrap_content"/><TextViewandroid:text="this is tab1111"android:layout_width="wrap_content"android:layout_height="wrap_content"/></LinearLayout>
3个Fragment的文件,3个也是几乎一样的:
注意,这里要导入的是import android.support.v4.app.Fragment;的fragment,而不是android.app.Fragment.因为ViewPager是import android.support.v4.app.Fragment
package com.china.anonymous.viewpagedemotwo;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;/*** Created by Anonymous on 2016/1/27.*/public class Tab1 extends Fragment {@Nullable@Overridepublic View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {View view = inflater.inflate(R.layout.layout1, null);return view;}}
mainavtivity.java
package com.china.anonymous.viewpagedemotwo;import android.os.Bundle;import android.support.design.widget.TabLayout;import android.support.v4.app.Fragment;import android.support.v4.view.ViewPager;import android.support.v7.app.AppCompatActivity;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {private TabLayout tabs;private ViewPager viewPager;private List<String> mTitle = new ArrayList<String>();private List<Fragment> mFragment = new ArrayList<Fragment>();@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initView();MyAdapter adapter = new MyAdapter(getSupportFragmentManager(), mTitle, mFragment);viewPager.setAdapter(adapter);//为TabLayout设置ViewPagertabs.setupWithViewPager(viewPager);//使用ViewPager的适配器tabs.setTabsFromPagerAdapter(adapter);}//初始化Vprivate void initView() {tabs = (TabLayout) findViewById(R.id.tabs);viewPager = (ViewPager) findViewById(R.id.viewPager);mTitle.add("tab1");mTitle.add("tab2");mTitle.add("tab3");mFragment.add(new Tab1());mFragment.add(new Tab2());mFragment.add(new Tab3());}}
MyAdapter.java
要写上最后一个方法,为tagLayout配置上标题的
package com.china.anonymous.viewpagedemotwo;import android.support.v4.app.Fragment;import android.support.v4.app.FragmentManager;import android.support.v4.app.FragmentPagerAdapter;import java.util.List;public class MyAdapter extends FragmentPagerAdapter {private List<String> title;private List<Fragment> views;public MyAdapter(FragmentManager fm, List<String> title, List<Fragment> views) {super(fm);this.title = title;this.views = views;}@Overridepublic Fragment getItem(int position) {return views.get(position);}@Overridepublic int getCount() {return views.size();}//配置标题的方法@Overridepublic CharSequence getPageTitle(int position) {return title.get(position);}}
运行结果:
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