android 仿微信demo——微信主界面实现

编辑: admin 分类: Android 发布时间: 2021-11-29 来源:互联网
目录
  • 主界面实现
    • 测试
  • 总结

    以往文章中实现微信启动页,登录注册功能,此基础上继续完善仿微信功能。

    主界面实现

    (1)整体采用RelativeLayout相对布局

    (2)最上面是toolbar操作栏,搜索框SearchView,Overflow(含有4个单选菜单项)

    (3)中间使用Fragment组件(不使用ViewPager,有兴趣可以自己添加实现下)。

    (4)最下面是水平的LinearLayout线性布局:含有4个自定义的控件

    在这里插入图片描述

    这一篇主要是实现主界面,其他像顶部(toolbar,SearchView,Overflow),中间的fragment,后续文章在更新。

    创建主界面activity MainWeixin.java

    MainWeixin.java

    package com.example.wxchatdemo;
    import android.annotation.SuppressLint;
    import android.app.AlertDialog;
    import android.app.Dialog;
    import android.app.FragmentManager;
    import android.app.FragmentTransaction;
    import android.content.DialogInterface;
    import android.content.Intent;
    import android.graphics.Color;
    import android.os.Bundle;
    import android.support.v4.app.FragmentActivity;
    import android.view.KeyEvent;
    import android.view.View;
    import android.view.Window;
    import android.widget.ImageView;
    import android.widget.TextView;
    
    public class MainWeixin extends FragmentActivity implements View.OnClickListener {
        private WeixinFragment firstFragment = null;// 用于显示微信界面
        private ContactListFragment secondFragment = null;// 用于显示通讯录界面
        private FindFragment thirdFragment = null;// 用于显示发现界面
        private SelfFragment fourthFragment = null;// 用于显示我界面
        private View firstLayout = null;// 微信显示布局
        private View secondLayout = null;// 通讯录显示布局
        private View thirdLayout = null;// 发现显示布局
        private View fourthLayout = null;// 我显示布局
        /*声明组件变量*/
        private ImageView weixinImg = null;
        private ImageView contactImg = null;
        private ImageView findImg = null;
        private ImageView selfImg = null;
        private TextView weixinText = null;
        private TextView contactText = null;
        private TextView  findText = null;
        private TextView selfText = null;
        private FragmentManager fragmentManager = null;// 用于对Fragment进行管理
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            requestWindowFeature(Window.FEATURE_NO_TITLE);//要求窗口没有title
            super.setContentView(R.layout.main_weixin);
            // 初始化布局元素
            initViews();
            fragmentManager = getFragmentManager();//用于对Fragment进行管理
            // 设置默认的显示界面
            setTabSelection(0);
        }
        /**
         * 在这里面获取到每个需要用到的控件的实例,并给它们设置好必要的点击事件
         */
        @SuppressLint("NewApi")
        public void initViews() {
            fragmentManager = getFragmentManager();
            firstLayout = findViewById(R.id.weixin_layout);
            secondLayout = findViewById(R.id.contacts_layout);
            thirdLayout = findViewById(R.id.find_layout);
            fourthLayout = findViewById(R.id.self_layout);
            weixinImg = (ImageView) findViewById(R.id.weixin_img);
            contactImg = (ImageView) findViewById(R.id.contact_img);
            findImg = (ImageView) findViewById(R.id.find_img);
            selfImg = (ImageView) findViewById(R.id.self_img);
            weixinText = (TextView) findViewById(R.id.weixin_text);
            contactText = (TextView) findViewById(R.id.contact_text);
            findText = (TextView) findViewById(R.id.find_text);
            selfText = (TextView) findViewById(R.id.self_text);
            //处理点击事件
            firstLayout.setOnClickListener(this);
            secondLayout.setOnClickListener(this);
            thirdLayout.setOnClickListener(this);
            fourthLayout.setOnClickListener(this);
        }
        @Override
        public void onClick(View v) {
            switch (v.getId()) {
                case R.id.weixin_layout:
                    setTabSelection(0);// 当点击了微信时,选中第1个tab
                    break;
                case R.id.contacts_layout:
                    setTabSelection(1);// 当点击了通讯录时,选中第2个tab
                    break;
                case R.id.find_layout:
                    setTabSelection(2);// 当点击了发现时,选中第3个tab
                    break;
                case R.id.self_layout:
                    setTabSelection(3);// 当点击了我时,选中第4个tab
                    break;
                default:
                    break;
            }
        }
        /**
         * 根据传入的index参数来设置选中的tab页 每个tab页对应的下标。0表示微信,1表示通讯录,2表示发现,3表示我
         */
        @SuppressLint("NewApi")
        private void setTabSelection(int index) {
            clearSelection();// 每次选中之前先清除掉上次的选中状态
            FragmentTransaction transaction = fragmentManager.beginTransaction();// 开启一个Fragment事务
            hideFragments(transaction);// 先隐藏掉所有的Fragment,以防止有多个Fragment显示在界面上的情况
            switch (index) {
                case 0:
                    // 当点击了我的微信tab时改变控件的图片和文字颜色
                    weixinImg.setImageResource(R.drawable.tab_weixin_pressed);//修改布局中的图片
                    weixinText.setTextColor(Color.parseColor("#0090ff"));//修改字体颜色
                    if (firstFragment == null) {
                        /*获取登录activity传过来的微信号*/
                        Intent intent = getIntent();
                        String number = intent.getStringExtra("weixin_number");
                        // 如果FirstFragment为空,则创建一个并添加到界面上
                        firstFragment = new WeixinFragment(number);
                        transaction.add(R.id.fragment, firstFragment);
                    } else {
                        // 如果FirstFragment不为空,则直接将它显示出来
                        transaction.show(firstFragment);//显示的动作
                    }
                    break;
                // 以下和firstFragment类同
                case 1:
                    contactImg.setImageResource(R.drawable.tab_address_pressed);
                    contactText.setTextColor(Color.parseColor("#0090ff"));
                    if (secondFragment == null) {
                        /*获取登录activity传过来的微信号*/
                        Intent intent = getIntent();
                        String number = intent.getStringExtra("weixin_number");
                        secondFragment = new ContactListFragment(number);
                        transaction.add(R.id.fragment, secondFragment);
                    } else {
                        transaction.show(secondFragment);
                    }
                    break;
                case 2:
                    findImg.setImageResource(R.drawable.tab_find_frd_pressed);
                    findText.setTextColor(Color.parseColor("#0090ff"));
                    if (thirdFragment == null) {
                        thirdFragment = new FindFragment();
                        transaction.add(R.id.fragment, thirdFragment);
                    } else {
                        transaction.show(thirdFragment);
                    }
                    break;
                case 3:
                    selfImg.setImageResource(R.drawable.tab_settings_pressed);
                    selfText.setTextColor(Color.parseColor("#0090ff"));
                    if (fourthFragment == null) {
                        fourthFragment = new SelfFragment();
                        transaction.add(R.id.fragment, fourthFragment);
                    } else {
                        transaction.show(fourthFragment);
                    }
                    break;
            }
            transaction.commit();
        }
        /**
         * 清除掉所有的选中状态
         */
        private void clearSelection() {
            weixinImg.setImageResource(R.drawable.tab_weixin_normal);
            weixinText.setTextColor(Color.parseColor("#82858b"));
            contactImg.setImageResource(R.drawable.tab_address_normal);
            contactText.setTextColor(Color.parseColor("#82858b"));
            findImg.setImageResource(R.drawable.tab_find_frd_normal);
            findText.setTextColor(Color.parseColor("#82858b"));
            selfImg.setImageResource(R.drawable.tab_settings_normal);
            selfText.setTextColor(Color.parseColor("#82858b"));
        }
        /**
         * 将所有的Fragment都设置为隐藏状态 用于对Fragment执行操作的事务
         */
        @SuppressLint("NewApi")
        private void hideFragments(FragmentTransaction transaction) {
            if (firstFragment != null) {
                transaction.hide(firstFragment);
            }
            if (secondFragment != null) {
                transaction.hide(secondFragment);
            }
            if (thirdFragment != null) {
                transaction.hide(thirdFragment);
            }
            if (fourthFragment != null) {
                transaction.hide(fourthFragment);
            }
        }
        //封装一个AlertDialog
        private void exitDialog() {
            Dialog dialog = new AlertDialog.Builder(this)
                    .setTitle("温馨提示")
                    .setMessage("您确定要退出程序吗?")
                    .setPositiveButton("关闭微信", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface arg0, int arg1) {
                            finish();
                        }
                    })
                    .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface arg0, int arg1) {
                        }
                    }).create();
            dialog.show();//显示对话框
        }
        /**
         * 返回菜单键监听事件
         */
        @Override
        public boolean onKeyDown(int keyCode, KeyEvent event) {
            if (keyCode == KeyEvent.KEYCODE_BACK) {//如果是返回按钮
                exitDialog();
            }
            return super.onKeyDown(keyCode, event);
        }
    }
    

    创建主界面activity MainWeixin.java对应的主布局文件main_weixin.xml

    main_weixin.xml

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <FrameLayout
            android:id="@+id/fragment"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@color/white">
        </FrameLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="48dp"
            android:layout_alignParentStart="true"
            android:layout_alignParentLeft="true"
            android:layout_alignParentBottom="true"
            android:background="#f7f7f7"
            android:gravity="center"
            android:orientation="horizontal">
            <LinearLayout
                android:id="@+id/weixin_layout"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_centerVertical="true"
                android:layout_weight="1"
                android:orientation="vertical"
                android:padding="3dp">
                <ImageView
                    android:id="@+id/weixin_img"
                    android:layout_width="wrap_content"
                    android:layout_height="24dp"
                    android:layout_gravity="center_horizontal"
                    android:src="@drawable/tab_weixin_pressed" />
                <TextView
                    android:id="@+id/weixin_text"
                    android:layout_width="wrap_content"
                    android:layout_height="20dp"
                    android:layout_gravity="center_horizontal"
                    android:gravity="top"
                    android:text="微信"
                    android:textColor="#82858b"
                    android:textSize="13dp" />
            </LinearLayout>
            <LinearLayout
                android:id="@+id/contacts_layout"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_centerVertical="true"
                android:layout_weight="1"
                android:orientation="vertical"
                android:padding="3dp">
                <ImageView
                    android:id="@+id/contact_img"
                    android:layout_width="wrap_content"
                    android:layout_height="24dp"
                    android:layout_gravity="center_horizontal"
                    android:src="@drawable/tab_address_normal" />
                <TextView
                    android:id="@+id/contact_text"
                    android:layout_width="wrap_content"
                    android:layout_height="20dp"
                    android:layout_gravity="center_horizontal"
                    android:gravity="top"
                    android:text="通讯录"
                    android:textColor="#82858b"
                    android:textSize="13dp" />
            </LinearLayout>
            <LinearLayout
                android:id="@+id/find_layout"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_centerVertical="true"
                android:layout_weight="1"
                android:orientation="vertical"
                android:padding="3dp">
                <ImageView
                    android:id="@+id/find_img"
                    android:layout_width="wrap_content"
                    android:layout_height="24dp"
                    android:layout_gravity="center_horizontal"
                    android:src="@drawable/tab_find_frd_normal" />
                <TextView
                    android:id="@+id/find_text"
                    android:layout_width="wrap_content"
                    android:layout_height="20dp"
                    android:layout_gravity="center_horizontal"
                    android:gravity="top"
                    android:text="发现"
                    android:textColor="#82858b"
                    android:textSize="13dp" />
            </LinearLayout>
            <LinearLayout
                android:id="@+id/self_layout"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_centerVertical="true"
                android:layout_weight="1"
                android:orientation="vertical"
                android:padding="3dp">
                <ImageView
                    android:id="@+id/self_img"
                    android:layout_width="wrap_content"
                    android:layout_height="24dp"
                    android:layout_gravity="center_horizontal"
                    android:src="@drawable/tab_settings_normal" />
                <TextView
                    android:id="@+id/self_text"
                    android:layout_width="wrap_content"
                    android:layout_height="20dp"
                    android:layout_gravity="center_horizontal"
                    android:gravity="top"
                    android:text="我"
                    android:textColor="#82858b"
                    android:textSize="13dp" />
            </LinearLayout>
        </LinearLayout>
    </RelativeLayout>
    

    创建4个Fragment.class和4个Fragment.xml布局,对应微信,通讯录,发现,我

    WeixinFragment.java

    package com.example.wxchatdemo;
    import android.annotation.SuppressLint;
    import android.app.Fragment;
    import android.os.Bundle;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    
    @SuppressLint("ValidFragment")
    public class WeixinFragment extends Fragment {
        private String number;
        @SuppressLint("ValidFragment")
        WeixinFragment(String number) {
            this.number = number;
        }
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            View view = inflater.inflate(R.layout.weixin_fragment, container, false);
            return view;
        }
    }
    

    ContactListFragment.java

    package com.example.wxchatdemo;
    import android.annotation.SuppressLint;
    import android.app.Fragment;
    import android.os.Bundle;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    
    @SuppressLint("ValidFragment")
    public class ContactListFragment extends Fragment {
        private String number;
        @SuppressLint("ValidFragment")
        ContactListFragment(String number) {
            this.number = number;
        }
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            View view = inflater.inflate(R.layout.weixin_fragment, container, false);
            return view;
        }
    }
    

    FindFragment.java

    package com.example.wxchatdemo;
    import android.app.Fragment;
    import android.os.Bundle;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    public class FindFragment extends Fragment {
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            View view = inflater.inflate(R.layout.find_fragment, container, false);
            return view;
        }
    }
    

    SelfFragment.java

    package com.example.wxchatdemo;
    import android.app.Fragment;
    import android.os.Bundle;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    public class SelfFragment extends Fragment {
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            View view = inflater.inflate(R.layout.self_fragment, container, false);
            return view;
        }
    }
    

    创建四个fragmen布局,代码都一样,只要有就行,后面会完善的,四个fragment布局文件为,weixin_fragment.xml,contactlist_fragment.xml,find_fragment.xml,self_fragment.xml

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    </LinearLayout>
    

    在AndroidMainfest.xml中声明创建的activity,由于创建fragment不是activity,所有不用声明,声明主界面的activity即可(fragment是内嵌在activity中的)

    在这里插入图片描述

    测试

    把之前两个登录activity请求成功跳转的activity代码段注释取消掉,启动项目测试

    在这里插入图片描述

    在这里插入图片描述

    总结

    这篇关于微信demo的文章就到这里了,希望大家可以多多关注海外IDC网的更多精彩内容!

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