Android笔记(六十九) 仿微信界面（一）

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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>