[移动开发]Android Stdio编写一个微信界面

一、运行效果图

二、top.xml布局及代码

<?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="50dp"
    android:background="@color/black">


    <TextView
        android:id="@+id/textView5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:gravity="center"
        android:text="微信"
        android:textColor="@color/white"
        android:textSize="30dp" />
</LinearLayout>

三、bottom.xml布局及代码

<?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="80dp"
    android:background="#000000"
    android:baselineAligned="false"
    app:layoutDescription="@xml/bottom_scene">

    <LinearLayout
        android:id="@+id/LinearLayout_weixin"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical">

        <ImageButton
            android:id="@+id/imageButton_weixin"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:background="#000000"
            android:clickable="false"
            android:scaleType="centerInside"
            app:srcCompat="@drawable/weixin" />

        <TextView
            android:id="@+id/textView1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:text="微信"
            android:textColor="#ffffff"
            android:clickable="false"
            android:textSize="20dp" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/LinearLayout_contact"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical">

        <ImageButton
            android:id="@+id/imageButton_contact"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:background="#000000"
            android:scaleType="centerInside"
            android:clickable="false"
            app:srcCompat="@drawable/contact" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:text="联系人"
            android:clickable="false"
            android:textColor="#ffffff"
            android:textSize="20dp" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/LinearLayout_discover"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical">

        <ImageButton
            android:id="@+id/imageButton_discover"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:scaleType="centerInside"
            android:clickable="false"
            android:background="#000000"
            app:srcCompat="@drawable/discover" />

        <TextView
            android:id="@+id/textView3"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:text="发现"
            android:clickable="false"
            android:textColor="#ffffff"
            android:textSize="20dp" />
    </LinearLayout>


    <LinearLayout
        android:id="@+id/LinearLayout_config"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical">

        <ImageButton
            android:id="@+id/imageButton_config"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:clickable="false"
            android:background="#000000"
            android:scaleType="centerInside"
            app:srcCompat="@drawable/config" />

        <TextView
            android:id="@+id/textView4"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:text="设置"
            android:clickable="false"
            android:textColor="#ffffff"
            android:textSize="20dp" />
    </LinearLayout>
</LinearLayout>

四、activity_main.xml布局及代码

<?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=".MainActivity">

    <include layout="@layout/top" />

    <FrameLayout
        android:id="@+id/id_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1">


    </FrameLayout>

    <include layout="@layout/bottom" />
</LinearLayout>

五、MainActivity代码

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;

public class MainActivity extends AppCompatActivity implements View.OnClickListener{


    //创建对象
    private Fragment weixinFragment=new weixinFragment();
    private Fragment contactFragment=new contactFragment();
    private Fragment discoverFragment=new discoverFragment();
    private Fragment configFragment=new configFragment();
    private FragmentManager fragmentManager;
    private LinearLayout linearLayout1,linearLayout2,linearLayout3,linearLayout4;

    private ImageButton mImgweixin;
    private ImageButton mImgcontact;
    private ImageButton mImgdiscover;
    private ImageButton mImgconfig;

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

        linearLayout1=findViewById(R.id.LinearLayout_weixin);
        linearLayout2=findViewById(R.id.LinearLayout_contact);
        linearLayout3=findViewById(R.id.LinearLayout_discover);
        linearLayout4=findViewById(R.id.LinearLayout_config);

        mImgweixin = findViewById(R.id.imageButton_weixin);
        mImgcontact = findViewById(R.id.imageButton_contact);
        mImgdiscover = findViewById(R.id.imageButton_discover);
        mImgconfig = findViewById(R.id.imageButton_config);

        linearLayout1.setOnClickListener(this);
        linearLayout2.setOnClickListener(this);
        linearLayout3.setOnClickListener(this);
        linearLayout4.setOnClickListener(this);

        initFragment();
        selectFragment(0);

    }

    private void initFragment(){
        fragmentManager = getFragmentManager();
        FragmentTransaction transaction = fragmentManager.beginTransaction();
        transaction.add(R.id.id_content,weixinFragment);
        transaction.add(R.id.id_content,contactFragment);
        transaction.add(R.id.id_content,discoverFragment);
        transaction.add(R.id.id_content,configFragment);

        transaction.commit();
    }

    private void hideFragment(FragmentTransaction transaction){
        transaction.hide(weixinFragment);
        transaction.hide(contactFragment);
        transaction.hide(discoverFragment);
        transaction.hide(configFragment);
    }

    @Override
    public void onClick(View v) {
        resetImgs();
        switch (v.getId()){
            case R.id.LinearLayout_weixin:
                selectFragment(0);
                break;
            case R.id.LinearLayout_contact:
                selectFragment(1);
                break;
            case R.id.LinearLayout_discover:
                selectFragment(2);
                break;
            case R.id.LinearLayout_config:
                selectFragment(3);
                break;
            default:
                break;
        }
    }

    private void selectFragment(int i){
        FragmentTransaction transaction=fragmentManager.beginTransaction();
        hideFragment(transaction);
        switch (i){
            case 0:
                transaction.show(weixinFragment);
                mImgweixin.setImageResource(R.drawable.weixin_pressed);
                break;
            case 1:
                transaction.show(contactFragment);
                mImgcontact.setImageResource(R.drawable.contact_pressed);
                break;
            case 2:
                transaction.show(discoverFragment);
                mImgdiscover.setImageResource(R.drawable.discover_pressed);
                break;
            case 3:
                transaction.show(configFragment);
                mImgconfig.setImageResource(R.drawable.config_pressed);
                break;
            default:
                break;
        }
        transaction.commit();
    }
    
    //提供灰暗图片
    private void resetImgs() {
        mImgweixin.setImageResource(R.drawable.weixin);
        mImgcontact.setImageResource(R.drawable.contact);
        mImgdiscover.setImageResource(R.drawable.discover);
        mImgconfig.setImageResource(R.drawable.config);
    }


}

六、页面部分

1、fragment_weixin

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

    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:text="这是微信聊天界面"
        android:textSize="40sp" />

</LinearLayout>

2、fragment_contact

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

    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:text="这是通讯录界面"
        android:textSize="40sp" />

</LinearLayout>

3、fragment_discover

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


    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:text="这是朋友圈界面"
        android:textSize="40sp" />

</LinearLayout>

4、fragment_config

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



    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:text="这是设置界面"
        android:textSize="40sp" />

</LinearLayout>

其他Java部分

1、weixinFragment

package com.example.myapplication;

import android.os.Bundle;

import android.app.Fragment;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;


public class weixinFragment extends Fragment {


    public weixinFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_weixin, container, false);
    }
}

2、contactFragment

package com.example.myapplication;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import android.app.Fragment;


public class contactFragment extends Fragment {


    public contactFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_contact, container, false);
    }
}

3、discoverFragment

package com.example.myapplication;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import android.app.Fragment;


public class discoverFragment extends Fragment {


    public discoverFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_discover, container, false);
    }
}

4、configFragment

package com.example.myapplication;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import android.app.Fragment;


public class configFragment extends Fragment {


    public configFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_config, container, false);
    }
}

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