Android模拟微信主页面的Demo

效果图如下:

项目结构图如下:

ContanctFragment:

package com.demo.moniwexin;

import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;

public class ContanctFragment extends Fragment {

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

        View view = inflater.inflate(R.layout.fragment_contact, null);
        //测试按钮如何点击
        Button wxBtn = view.findViewById(R.id.btn_test);
        wxBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                System.out.println("点击了通讯录模块");
            }
        });

        return view;

    }
}

DiscoverFragment:

package com.demo.moniwexin;

import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;

public class DiscoverFragment extends Fragment {

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

        View view = inflater.inflate(R.layout.fragment_discover, null);
        //测试按钮如何点击
        Button wxBtn = view.findViewById(R.id.btn_test);
        wxBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                System.out.println("点击了发现模块");
            }
        });

        return view;
    }
}

MainActivity:

package com.demo.moniwexin;

import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

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

        findViewById(R.id.btn_wx).setOnClickListener(this);
        findViewById(R.id.btn_contact).setOnClickListener(this);
        findViewById(R.id.btn_discover).setOnClickListener(this);
        findViewById(R.id.btn_me).setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {

        //获取管理者
        FragmentManager fragmentManager =getFragmentManager();

        FragmentTransaction beginTransaction = fragmentManager.beginTransaction();

        switch (v.getId()){
            case R.id.btn_wx :
                beginTransaction.replace(R.id.ll_l,new WxFragment());
                break;
            case R.id.btn_contact:
                beginTransaction.replace(R.id.ll_l,new ContanctFragment());
                break;
            case R.id.btn_discover:
                beginTransaction.replace(R.id.ll_l,new DiscoverFragment());
                break;
            case R.id.btn_me:
                beginTransaction.replace(R.id.ll_l,new MeFragment());
                break;

                default:

                    break;

        }

        beginTransaction.commit();
    }
}

MeFragment:

package com.demo.moniwexin;

import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;

public class MeFragment extends Fragment {

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

        View view = inflater.inflate(R.layout.fragment_me, null);
        //测试按钮如何点击
        Button wxBtn = view.findViewById(R.id.btn_test);
        wxBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                System.out.println("点击了我模块");
            }
        });

        return view;
    }
}

WxFragment:

package com.demo.moniwexin;

import android.app.Fragment;
import android.os.Bundle;
import android.text.Layout;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;

public class WxFragment extends Fragment {

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

        View view = inflater.inflate(R.layout.fragment_wx, null);
        //测试按钮如何点击
        Button wxBtn = view.findViewById(R.id.btn_test);
        wxBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                System.out.println("点击了微信模块");

            }
        });

        return view;

    }
}

activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
    tools:context=".MainActivity">

    <LinearLayout
        android:id="@+id/ll_l"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn_wx"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="微信" />

        <Button
            android:id="@+id/btn_contact"

            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="通讯录" />

        <Button
            android:id="@+id/btn_discover"

            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="发现" />

        <Button
            android:id="@+id/btn_me"

            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="我" />

    </LinearLayout>

</RelativeLayout>

fragment_contact.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:text="我是通讯录模块的内容"
        android:textSize="20dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Button
        android:id="@+id/btn_test"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="测试"
        />

</LinearLayout>

fragment_discover.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:text="我是发现模块的内容"
        android:textSize="20dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Button
        android:id="@+id/btn_test"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="测试"
        />

</LinearLayout>

fragment_me.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:text="我是我的模块内容"
        android:textSize="20dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Button
        android:id="@+id/btn_test"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="测试"
        />

</LinearLayout>

fragment_wx.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:text="我是微信模块的内容"
        android:textSize="20dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Button
        android:id="@+id/btn_test"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="测试"
        />

</LinearLayout>

原文地址：https://www.cnblogs.com/charlypage/p/10354055.html