Android笔记(六十九) 仿微信界面（一）

2023-08-29 21:15:28

综合之前的Fragment和自定义组件的知识，实现微信界面

MainActivity.java

package cn.lixyz.test;

import android.app.Activity;

import android.os.Bundle;

import android.view.Window;

import android.widget.RadioGroup;

import android.widget.RadioGroup.OnCheckedChangeListener;

import cn.lixyz.test.fragment.DiscoverFragment;

import cn.lixyz.test.fragment.MeFragment;

import cn.lixyz.test.fragment.TXLFragment;

import cn.lixyz.test.fragment.WeChatFragment;

public class MainActivity extends Activity implements OnCheckedChangeListener {

    private RadioGroup rg_tab_buttons;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        requestWindowFeature(Window.FEATURE_NO_TITLE);

        setContentView(R.layout.activity_main);

        getFragmentManager().beginTransaction().add(R.id.layout, new WeChatFragment(), "wechat").commit();

        rg_tab_buttons = (RadioGroup) findViewById(R.id.rg_tab_buttons);

        rg_tab_buttons.setOnCheckedChangeListener(this);

    }

    @Override

    public void onCheckedChanged(RadioGroup group, int checkedId) {

        switch (checkedId) {

        case R.id.rb_wechat:

            getFragmentManager().beginTransaction().replace(R.id.layout, new WeChatFragment(), "wechat").commit();

            break;

        case R.id.rb_txl:

            getFragmentManager().beginTransaction().replace(R.id.layout, new TXLFragment(), "txl").commit();

            break;

        case R.id.rb_discover:

            getFragmentManager().beginTransaction().replace(R.id.layout, new DiscoverFragment(), "discover").commit();

            break;

        case R.id.rb_me:

            getFragmentManager().beginTransaction().replace(R.id.layout, new MeFragment(), "me").commit();

            break;

        }

    }

}

activity_main.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"

    android:background="#f9f9f9"

    android:orientation="vertical" >

    <LinearLayout

        android:id="@+id/layout"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_weight="1"

        android:orientation="vertical" >

    </LinearLayout>

    <RadioGroup

        android:id="@+id/rg_tab_buttons"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_weight="1" />

        <RadioButton

            android:id="@+id/rb_wechat"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:background="@drawable/wechat_icon"

            android:button="@null" />

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_weight="1" />

        <RadioButton

            android:id="@+id/rb_txl"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:background="@drawable/txl_icon"

            android:button="@null" />

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_weight="1" />

        <RadioButton

            android:id="@+id/rb_discover"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:background="@drawable/discover_icon"

            android:button="@null" />

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_weight="1" />

        <RadioButton

            android:id="@+id/rb_me"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:background="@drawable/me_icon"

            android:button="@null" />

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_weight="1" />

    </RadioGroup>

</LinearLayout>

DiscoverFragment.java

package cn.lixyz.test.fragment;

import android.app.Fragment;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import cn.lixyz.test.R;

public class DiscoverFragment extends Fragment {

    @Override

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

        return inflater.inflate(R.layout.discover_fragment, container, false);

    }

}

discover_fragment.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:custom="http://schemas.android.com/apk/res/cn.lixyz.test"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <cn.lixyz.test.view.MyCustomTitleBar

        android:layout_width="wrap_content"

        android:layout_height="33dp"

        custom:titleText="发现"

        custom:titleTextColor="#ffffff"

        custom:titleTextSize="5sp" />

</LinearLayout>

MeFragment.java

package cn.lixyz.test.fragment;

import android.app.Fragment;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import cn.lixyz.test.R;

public class MeFragment extends Fragment {

    @Override

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

        return inflater.inflate(R.layout.me_fragment, container, false);

    }

}

me_fragment.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:custom="http://schemas.android.com/apk/res/cn.lixyz.test"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <cn.lixyz.test.view.MyCustomTitleBar

        android:layout_width="wrap_content"

        android:layout_height="33dp"

        custom:titleText="我"

        custom:titleTextColor="#ffffff"

        custom:titleTextSize="5sp" />

</LinearLayout>

TXLFragment.java

package cn.lixyz.test.fragment;

import android.app.Fragment;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import cn.lixyz.test.R;

public class TXLFragment extends Fragment {

    @Override

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

        return inflater.inflate(R.layout.txl_fragment, container, false);

    }

}

txl_fragment.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:custom="http://schemas.android.com/apk/res/cn.lixyz.test"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <cn.lixyz.test.view.MyCustomTitleBar

        android:layout_width="wrap_content"

        android:layout_height="33dp"

        custom:titleButtonImage="@drawable/image"

        custom:titleText="通讯录"

        custom:titleTextColor="#ffffff"

        custom:titleTextSize="5sp"  />

</LinearLayout>

WeChatFragment.java

package cn.lixyz.test.fragment;

import android.app.Fragment;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import cn.lixyz.test.R;

public class WeChatFragment extends Fragment {

    @Override

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

        return inflater.inflate(R.layout.wechat_fragment, container, false);

    }

}

wechat_fragment.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:custom="http://schemas.android.com/apk/res/cn.lixyz.test"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <cn.lixyz.test.view.MyCustomTitleBar

        android:layout_width="wrap_content"

        android:layout_height="33dp"

        custom:titleButtonImage="@drawable/plus"

        custom:titleText="微信"

        custom:titleTextColor="#ffffff"

        custom:titleTextSize="5sp" />

</LinearLayout>

MyCustomTitleBar.java

package cn.lixyz.test.view;

import android.annotation.SuppressLint;

import android.content.Context;

import android.content.res.TypedArray;

import android.graphics.drawable.Drawable;

import android.util.AttributeSet;

import android.view.View;

import android.widget.ImageButton;

import android.widget.RelativeLayout;

import android.widget.TextView;

import cn.lixyz.test.R;

@SuppressLint("NewApi")

public class MyCustomTitleBar extends RelativeLayout {

    // 定义自定义控件包含的组件

    private TextView title;

    private ImageButton button;

    // 定义控件的属性

    private String titleText;

    private float titleTextSize;

    private int titleTextColor;

    private Drawable titleButtonImage;

    // 为每个控件定义LayoutParams

    private LayoutParams textLayoutParams;

    private LayoutParams buttonLayoutParams;

    private customTitleBarListener listener;

    public interface customTitleBarListener {

        public void click();

    }

    public void setCustomTitleBarListener(customTitleBarListener listener) {

        this.listener = listener;

    }

    public MyCustomTitleBar(Context context, AttributeSet attrs) {

        super(context, attrs);

        // 获取我们定义的属性

        TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.MyCustomTitleBar);

        titleText = array.getString(R.styleable.MyCustomTitleBar_titleText);

        titleTextColor = array.getColor(R.styleable.MyCustomTitleBar_titleTextColor, 0);

        titleTextSize = array.getDimension(R.styleable.MyCustomTitleBar_titleTextSize, 10);

        titleButtonImage = array.getDrawable(R.styleable.MyCustomTitleBar_titleButtonImage);

        // 回收，以防出错

        array.recycle();

        // 新建包含的子组件

        title = new TextView(context);

        button = new ImageButton(context);

        // 为子组件赋值

        title.setText(titleText);

        title.setTextColor(titleTextColor);

        title.setTextSize(titleTextSize);

        button.setBackground(titleButtonImage);

        // 设置背景色

        setBackgroundColor(0xFF38373c);

        // 设置包含控件的属性并添加到view中

        textLayoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

        textLayoutParams.addRule(RelativeLayout.CENTER_IN_PARENT);

        addView(title, textLayoutParams);

        buttonLayoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

        buttonLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);

        addView(button, buttonLayoutParams);

        button.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                listener.click();

            }

        });

    }

}

attrs.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>

    <declare-styleable name="MyCustomTitleBar">

        <attr name="titleText" format="string" />

        <attr name="titleTextSize" format="dimension" />

        <attr name="titleTextColor" format="color" />

        <attr name="titleButtonImage" format="reference" />

    </declare-styleable>

</resources>

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