Android Studio類微信介面

一、類微信介面的功能

1.可展示出四個可切換介面：微信、朋友、通訊錄、設定；
2.上方欄標題居中，介面中間顯示內容，內容隨下方欄的選擇而切換，下方欄可點選切換，點選過的介面的圖示為綠色，沒有點選的介面的圖示為灰色；
3.主要從top、bottom、中間佈局以及MainActivity四個方面分析。

二、top佈局

在res資料夾的layout中新建top.xml，將標題列的內容居中，並將背景色調為黑色，文字調為白色。

<?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="65dp"
    android:gravity="center"
    android:background="#000000"//顏色編碼都是六位
    android:orientation="vertical">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="@string/app_name"
        android:textColor="#ffffff"
        android:textSize="20sp" />
</LinearLayout>

三、bottom佈局

1.將圖示資料夾貼上到drawable中；
2.在res資料夾的layout中新建bottom.xml，拖入TextView拖入ImageButton後會呼叫drawable，選取所需的圖示；
3.複製貼上四個並調整水平平鋪佈局。

<?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="@drawable/bottom_bar"
    android:orientation="horizontal"
    android:baselineAligned="false">

    <LinearLayout
        android:id="@+id/id_tab_weixin"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:gravity="center"
        android:layout_weight="1"
        android:orientation="vertical">

        <ImageButton
            android:id="@+id/id_tab_weixin_img"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="#000000"
            android:clickable="false"
            android:contentDescription="@string/app_name"
            app:srcCompat="@drawable/tab_weixin_pressed" />

        <TextView
            android:id="@+id/textView1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:text="微信"
            android:gravity="center"
            android:textColor="#ffffff"
            android:clickable="false"
            android:textSize="15sp" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/id_tab_frd"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical">

        <ImageButton
            android:id="@+id/id_tab_frd_img"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="#000000"
            android:clickable="false"
            android:contentDescription="@string/app_name"
            app:srcCompat="@drawable/tab_find_frd_normal" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:text="朋友"
            android:gravity="center"
            android:clickable="false"
            android:textColor="#ffffff"
            android:textSize="15sp" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/id_tab_contact"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical">

        <ImageButton
            android:id="@+id/id_tab_contact_img"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="#000000"
            android:clickable="false"
            android:contentDescription="@string/app_name"
            app:srcCompat="@drawable/tab_address_normal" />

        <TextView
            android:id="@+id/textView3"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:text="通訊錄"
            android:gravity="center"
            android:textColor="#ffffff"
            android:clickable="false"
            android:textSize="15sp" />

    </LinearLayout>

    <LinearLayout
        android:id="@+id/id_tab_settings"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical">

        <ImageButton
            android:id="@+id/id_tab_settings_img"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="#000000"
            android:clickable="false"
            android:contentDescription="@string/app_name"
            app:srcCompat="@drawable/tab_settings_normal" />

        <TextView
            android:id="@+id/textView4"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:text="設定"
            android:gravity="center"
            android:textColor="#ffffff"
            android:clickable="false"
            android:textSize="15sp" />
    </LinearLayout>
</LinearLayout>

四、中間佈局

四個tab.xml分別對應四個介面的中間內容，此處是第一個微信介面的。

<?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"
    android:gravity="center"
    android:orientation="horizontal">

    <TextView
        android:id="@+id/textView5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:gravity="center"
        android:layout_weight="1"
        android:text="這是微信聊天介面"
        android:textSize="25sp" />
</LinearLayout>

五、activity_main.xml

activity_main.xml裡需要加上FrameLayout(重疊佈局)和include

<?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"
    android:orientation="vertical">

    <include layout="@layout/top" />
    
    <FrameLayout
        android:id="@+id/id_content"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">
        
    </FrameLayout>

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

六、MainActivity

函數具體作用程式碼中有註釋

package com.example.mywechat;

import androidx.appcompat.app.AppCompatActivity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.ImageButton;
import android.widget.LinearLayout;

public class MainActivity extends AppCompatActivity implements View.OnClickListener{

    private LinearLayout mTabweixin;
    private LinearLayout mTabfrd;
    private LinearLayout mTabcontact;
    private LinearLayout mTabsetting;

    private ImageButton mImgWeixin;
    private ImageButton mImgFrd;
    private ImageButton mImgcontact;
    private ImageButton mImgSettings;

    private Fragment mTab05;
    private Fragment mTab01 = new weixinFragment();
    private Fragment mTab02 = new frdFragment();
    private Fragment mTab03 = new contactFragment();
    private Fragment mTab04 = new settingsFragment();

    private FragmentManager fm;

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

        initView();
        initEvent();
        initFragment();
        selectfragment(0);
    }

    private void initFragment(){
    //fragment的切換
        fm = getFragmentManager();
        FragmentTransaction transaction = fm.beginTransaction();
        transaction.add(R.id.id_content,mTab01);
        transaction.add(R.id.id_content,mTab02);
        transaction.add(R.id.id_content,mTab03);
        transaction.add(R.id.id_content,mTab04);
        transaction.commit();
    }

    private void initEvent(){
        mTabweixin.setOnClickListener(this);
        mTabfrd.setOnClickListener(this);
        mTabcontact.setOnClickListener(this);
        mTabsetting.setOnClickListener(this);
    }

    private void initView() {
    //改變圖示的顏色
        mTabweixin = (LinearLayout)findViewById(R.id.id_tab_weixin);
        mTabfrd = (LinearLayout)findViewById(R.id.id_tab_frd);
        mTabcontact = (LinearLayout)findViewById(R.id.id_tab_contact);
        mTabsetting = (LinearLayout)findViewById(R.id.id_tab_settings);

        mImgWeixin = (ImageButton)findViewById(R.id.id_tab_weixin_img);
        mImgFrd = (ImageButton) findViewById(R.id.id_tab_frd_img);
        mImgcontact = (ImageButton)findViewById(R.id.id_tab_contact_img);
        mImgSettings = (ImageButton)findViewById(R.id.id_tab_settings_img);
    }

    private void selectfragment(int i){
    //顯示選中介面的內容，選中介面圖示為綠色
        FragmentTransaction transaction = fm.beginTransaction();
        hideFragment(transaction);
        switch (i){
            case 0:
                Log.d("setSelect","1");
                transaction.show(mTab01);
                mImgWeixin.setImageResource(R.drawable.tab_weixin_pressed);
                break;
            case 1:
                transaction.show(mTab02);
                mImgFrd.setImageResource(R.drawable.tab_find_frd_pressed);
                break;
            case 2:
                transaction.show(mTab03);
                mImgcontact.setImageResource(R.drawable.tab_address_pressed);
                break;
            case 3:
                transaction.show(mTab04);
                mImgSettings.setImageResource(R.drawable.tab_settings_pressed);
                break;
            default:
                break;
        }
        transaction.commit();
    }

    private void hideFragment(FragmentTransaction transaction) {
    //把沒有使用的介面的內容隱藏
        transaction.hide(mTab01);
        transaction.hide(mTab02);
        transaction.hide(mTab03);
        transaction.hide(mTab04);
    }

    @Override
    public void onClick(View view) {
    //監聽函數，監聽到底是哪一個圖示被擊中從而顯示哪一個介面的內容
        resetimg();
        switch (view.getId()){
            case R.id.id_tab_weixin:
                selectfragment(0);
                break;
            case R.id.id_tab_frd:
                selectfragment(1);
                break;
            case R.id.id_tab_contact:
                selectfragment(2);
                break;
            case R.id.id_tab_settings:
                selectfragment(3);
                break;
        }
    }

    public void resetimg(){
    //沒有使用的介面的圖示為灰色
        mImgWeixin.setImageResource(R.drawable.tab_weixin_normal);
        mImgFrd.setImageResource(R.drawable.tab_find_frd_normal);
        mImgcontact.setImageResource(R.drawable.tab_address_normal);
        mImgSettings.setImageResource(R.drawable.tab_settings_normal);
    }
}

七、其餘Java檔案（分別呼叫四個介面）

1.weixinFragment

package com.example.mywechat;

import android.os.Bundle;

import android.app.Fragment;

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

/**
 * A simple {@link Fragment} subclass.
 * Use the {@link weixinFragment#newInstance} factory method to
 * create an instance of this fragment.
 */
public class weixinFragment extends Fragment {

    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;

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

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     * @param param1 Parameter 1.
     * @param param2 Parameter 2.
     * @return A new instance of fragment BlankFragment.
     */
    // TODO: Rename and change types and number of parameters
    public static weixinFragment newInstance(String param1, String param2) {
        weixinFragment fragment = new weixinFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.tab01, container, false);
    }
}

2.frdFragment

package com.example.mywechat;

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

import android.app.Fragment;

/**
 * A simple {@link Fragment} subclass.
 * Use the {@link frdFragment#newInstance} factory method to
 * create an instance of this fragment.
 */
public class frdFragment extends Fragment {

    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;

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

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     * @param param1 Parameter 1.
     * @param param2 Parameter 2.
     * @return A new instance of fragment BlankFragment.
     */
    // TODO: Rename and change types and number of parameters
    public static frdFragment newInstance(String param1, String param2) {
        frdFragment fragment = new frdFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.tab02, container, false);
    }
}

3.contactFragment

package com.example.mywechat;

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

import android.app.Fragment;

/**
 * A simple {@link Fragment} subclass.
 * Use the {@link contactFragment#newInstance} factory method to
 * create an instance of this fragment.
 */
public class contactFragment extends Fragment {

    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;

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

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     * @param param1 Parameter 1.
     * @param param2 Parameter 2.
     * @return A new instance of fragment BlankFragment.
     */
    // TODO: Rename and change types and number of parameters
    public static contactFragment newInstance(String param1, String param2) {
        contactFragment fragment = new contactFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.tab03, container, false);
    }
}

4.settingsFragment

package com.example.mywechat;

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

import android.app.Fragment;

/**
 * A simple {@link Fragment} subclass.
 * Use the {@link settingsFragment#newInstance} factory method to
 * create an instance of this fragment.
 */
public class settingsFragment extends Fragment {

    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;

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

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     * @param param1 Parameter 1.
     * @param param2 Parameter 2.
     * @return A new instance of fragment BlankFragment.
     */
    // TODO: Rename and change types and number of parameters
    public static settingsFragment newInstance(String param1, String param2) {
        settingsFragment fragment = new settingsFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.tab04, container, false);
    }
}

八、執行介面

原始碼GitHub的地址：
連結: https://github.com/GODFF556/MyWechat.