Android实现底部状态栏切换

Android开发过程中，特别是新开的项目，底部状态栏的切换使用的频率非常的高，主要的实现方式有：

(1)、TabLayout + Fragment
    (2)、FragmentTabHost + Fragment
    (3)、BottomNavigationView + Fragment
    (4)、RidioGroup + Fragment

这里我先介绍前面两种实现方式，后面两种后期再贴出实现方式。

一、使用TabLayout + Fragment + ViewPager实现

1、实现步骤：

(1)、布局文件中定义TabLayout控件
    (2)、定义切换的每个Fragment布局文件
    (3)、定义切换的每个Fragment的 Java 类
    (4)、定义TabLayoutMainActivity类
    (5)、效果图演示

2、实现过程：

(1)、布局文件中定义TabLayout控件(activity_main.xml)

(2)、定义切换的每个Fragment布局文件(fragment_frist.xml)

这里有四个Tab类别(首页、娱乐、游戏、我的)，布局都类似，这里只贴出其中一个

(3)、定义切换的每个Fragment的Java类(FristFragment.class)

这里的Java 类实现方式也相似，贴出其中一个

package com.showly.bottomnavigationbardemo.fragment;

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;
import com.showly.bottomnavigationbardemo.R;

public class FristFragment extends Fragment {

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.fragment_frist, null);
        return view;
    }
}

(4)、定义TabLayoutMainActivity类(TabLayoutMainActivity.class)

package com.showly.bottomnavigationbardemo;


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 com.showly.bottomnavigationbardemo.fragment.FourthlyFragment;
import com.showly.bottomnavigationbardemo.fragment.FristFragment;
import com.showly.bottomnavigationbardemo.fragment.SecondFragment;
import com.showly.bottomnavigationbardemo.fragment.ThirtlyFragment;

public class TabLayoutMainActivity extends AppCompatActivity {

    //未选中的Tab图片
    private int[] unSelectTabRes = new int[]{R.drawable.i8live_menu_home_normal
            , R.drawable.i8live_menu_information_normal, R.drawable.i8live_menu_game_normal, R.drawable.i8live_menu_personl_normal};
    //选中的Tab图片
    private int[] selectTabRes = new int[]{R.drawable.i8live_menu_home_press, R.drawable.i8live_menu_information_press
            , R.drawable.i8live_menu_game_press, R.drawable.i8live_menu_personl_press};
    //Tab标题
    private String[] title = new String[]{"首页", "娱乐", "游戏", "我的"};
    private ViewPager viewPager;
    private TabLayout tabLayout;
    private TabLayout.Tab tabAtOne;
    private TabLayout.Tab tabAttwo;
    private TabLayout.Tab tabAtthree;
    private TabLayout.Tab tabAtfour;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getSupportActionBar().hide();//隐藏掉整个ActionBar
        setContentView(R.layout.activity_main);

        initView();
        initData();
        initListener();
    }

    private void initView() {
        viewPager = (ViewPager) findViewById(R.id.viewpager_content_view);
        tabLayout = (TabLayout) findViewById(R.id.tab_layout_view);

        //使用适配器将ViewPager与Fragment绑定在一起
        viewPager.setAdapter(new MyFragmentPagerAdapter(getSupportFragmentManager()));
        //将TabLayout与ViewPager绑定
        tabLayout.setupWithViewPager(viewPager);

      /*  //设置方式一：
        //获取底部的单个Tab
        tabAtOne= tabLayout.getTabAt(0);
        tabAttwo = tabLayout.getTabAt(1);
        tabAtthree = tabLayout.getTabAt(2);
        tabAtfour = tabLayout.getTabAt(3);

        //设置Tab图片
        tabAtOne.setIcon(R.drawable.i8live_menu_home_press);
        tabAttwo.setIcon(R.drawable.i8live_menu_information_normal);
        tabAtthree.setIcon(R.drawable.i8live_menu_game_normal);
        tabAtfour.setIcon(R.drawable.i8live_menu_personl_normal);*/

        //设置方式二：
        for (int i = 0; i  
 
(5)、效果图演示
 
 
    
 
 
二、使用FragmentTabHost+ Fragment + ViewPager实现
 
 
1、实现步骤：
 
 
(1)、布局文件中定义FragmentTabHost控件
    (2)、定义底部菜单栏布局
    (3)、定义切换的每个Fragment布局文件
    (4)、定义切换的每个Fragment的Java类
    (5)、切换按钮的图片
    (6)、定义FragmentTabHostMainActivity类
    (7)、效果图演示
 
 
2、实现过程：
 
 
(1)、布局文件中定义FragmentTabHost控件(fragment_tabhost_activity.xml)
 
 



    

    

        
    
 
 
(2)、定义底部菜单栏布局(tab_content.xml)
 
 



    

    
 
 
(3)、定义切换的每个Fragment布局文件(fragment_frist.xml)
 
 
这里有四个Tab类别(首页、娱乐、游戏、我的)，布局都类似，这里只贴出其中一个
 
 



    
 
 
(4)、定义切换的每个Fragment的Java类(FristFragment.class)
 
 
这里的Java 类实现方式也相似，贴出其中一个
 
 
package com.showly.bottomnavigationbardemo.fragment;


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;
import com.showly.bottomnavigationbardemo.R;

public class FristFragment extends Fragment {

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.fragment_frist, null);
        return view;
    }
}
 
 
(5)、切换按钮的图片(tab_main.xml)
 
 
这里有四个是相似的，只贴出其中一个
 
 


   
    
    
    
 
 
(6)、定义FragmentTabHostMainActivity类（FragmentTabHostMainActivity.class）
 
 
package com.showly.bottomnavigationbardemo;

import android.graphics.Color;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTabHost;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TabHost;
import android.widget.TabWidget;
import android.widget.TextView;

import com.showly.bottomnavigationbardemo.fragment.FourthlyFragment;
import com.showly.bottomnavigationbardemo.fragment.FristFragment;
import com.showly.bottomnavigationbardemo.fragment.SecondFragment;
import com.showly.bottomnavigationbardemo.fragment.ThirtlyFragment;

import java.util.ArrayList;
import java.util.List;


public class FragmentTabHostMainActivity extends FragmentActivity implements ViewPager.OnPageChangeListener, TabHost.OnTabChangeListener {

    private int[] selectTabRes = new int[]{R.drawable.tab_main, R.drawable.tab_infomation
            , R.drawable.tab_game, R.drawable.tab_personal};
    //Tab标题
    private String[] title = new String[]{"首页", "娱乐", "游戏", "我的"};
    private Class fragmentArry[] = {FristFragment.class, SecondFragment.class, ThirtlyFragment.class, FourthlyFragment.class};
    private List fragmentList = new ArrayList();

    private ViewPager viewPager;
    private FragmentTabHost tabHost;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fragment_tabhost_activity);

        initView();
        initData();
        initListener();
    }

    /**
     * 初始化Fragment并给ViewPager添加适配器
     */
    private void initVaper() {
        FristFragment fristFragment = new FristFragment();
        SecondFragment secOndFragment= new SecondFragment();
        ThirtlyFragment thirtlyFragment = new ThirtlyFragment();
        FourthlyFragment fourthlyFragment = new FourthlyFragment();

        fragmentList.add(fristFragment);
        fragmentList.add(secondFragment);
        fragmentList.add(thirtlyFragment);
        fragmentList.add(fourthlyFragment);

        //ViewPager添加适配器
        viewPager.setAdapter(new MyFragmentAdapter(getSupportFragmentManager(), fragmentList));
        tabHost.getTabWidget().setDividerDrawable(null);
    }

    private void initView() {
        viewPager = (ViewPager) findViewById(R.id.vp_pager);

        tabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);//绑定tabhost
        tabHost.setup(this, getSupportFragmentManager(), R.id.vp_pager);//TabHost绑定viewpager

        //获取item的个数
        int count = title.length;

        for (int i = 0; i  list;

        public MyFragmentAdapter(FragmentManager fm, List list) {
            super(fm);
            this.list = list;
        }

        @Override
        public Fragment getItem(int position) {
            return list.get(position);
        }

        @Override
        public int getCount() {
            return list.size();
        }
    }
}
 
 
(7)、效果图演示
 
 
  
 
 
三、总结
 
 
这两种方式的实现已完成，实现起来相对还是比较简单的，后期有时间会把后面两种的实现方式补上。
 
 
Demo代码地址：底部公众号回复"底部状态栏切换"即可获取。
 
 
以下是个人公众号(longxuanzhigu)，之后发布的文章会同步到该公众号，方便交流学习Android知识及分享个人爱好文章：