ViewPager+Fragment+RadioGroup 实现仿微信界面

用ViewPager + RadioGroup实现的仿微信界面

package com.test.wechatforfragmentdemo;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.Window;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;

public class MainActivity extends FragmentActivity {
	private RadioGroup radioGroup;
	private RadioButton weChatRadio;
	private RadioButton contactsRadio;
	private RadioButton findRadio;
	private RadioButton meRadio;
	
	private ViewPager viewPager;
	private List list;
	
	private MyFragmentPagerAdapter adapter;
	
	@Override
	protected void onCreate（Bundle savedInstanceState） {
		super.onCreate（savedInstanceState）;
		requestWindowFeature（Window.FEATURE_NO_title）;
		setContentView（R.layout.activity_main）;
		
		initView（）;
		initFragment（）;
	}

	private void initFragment（） {
		list = new ArrayList（）;
		MyFragment fr1 = new MyFragment（this）;
		fr1.setText（“One“）;
		MyFragment fr2 = new MyFragment（this）;
		fr2.setText（“Two“）;
		MyFragment fr3 = new MyFragment（this）;
		fr3.setText（“Three“）;
		MyFragment fr4 = new MyFragment（this）;
		fr4.setText（“Four“）;
		
		list.add（fr1）;
		list.add（fr2）;
		list.add（fr3）;
		list.add（fr4）;
		
		adapter = new MyFragmentPagerAdapter（getSupportFragmentManager（） MainActivity.this list）;
		
		viewPager.setAdapter（adapter）;
		weChatRadio.setChecked（true）;

		viewPager.setOnPageChangeListener（new OnPageChangeListener（） {
			
			@Override
			public void onPageSelected（int arg0） {
				switch（arg0）{
				case 0:
					weChatRadio.setChecked（true）;
					break;
				case 1:
					contactsRadio.setChecked（true）;
					break;
				case 2:
					findRadio.setChecked（true）;
					break;
				case 3:
					meRadio.setChecked（true）;
					break;
				}
			}
			@Override
			public void onPageScrolled（int arg0 float arg1 int arg2） {
			}
			@Override
			public void onPageScrollStateChanged（int arg0） {
			}
		}）;
	}

	/**
	 * 初始化View
	 */
	private void initView（） {
		radioGroup = （RadioGroup） findViewById（R.id.radio_group）;
		weChatRadio = （RadioButton） findViewById（R.id.wechat_radio）;
		contactsRadio = （RadioButton） findViewById（R.id.contacts_radio）;
		findRadio = （RadioButton） findViewById（R.id.find_radio）;
		meRadio = （RadioButton） findViewById（R.id.me_radio）;
		viewPager = （ViewPager） findViewById（R.id.pager）;
		
		radioGroup.setOnCheckedChangeListener（new OnCheckedChangeListener（） {
			
			@Override
			public void onCheckedChanged（RadioGroup group int checkedId） {
				switch（checkedId）{
				case R.id.wechat_radio:
					viewPager.setCurrentItem（0）;
					break;
				case R.id.contacts_radio:
					viewPager.setCurrentItem（1）;
					break;
				case R.id.find_radio

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2016-01-22 14:55  WeChatForFragmentDemo\
     文件         475  2016-01-13 14:41  WeChatForFragmentDemo\.classpath
     文件         857  2016-01-13 14:41  WeChatForFragmentDemo\.project
     文件         873  2016-01-13 14:41  WeChatForFragmentDemo\AndroidManifest.xml
     文件       51394  2016-01-13 14:41  WeChatForFragmentDemo\ic_launcher-web.png
     目录           0  2016-01-22 14:55  WeChatForFragmentDemo\libs\
     文件      995624  2016-01-13 14:41  WeChatForFragmentDemo\libs\android-support-v4.jar
     文件         781  2016-01-13 14:41  WeChatForFragmentDemo\proguard-project.txt
     文件         563  2016-01-13 14:41  WeChatForFragmentDemo\project.properties
     目录           0  2016-01-22 14:55  WeChatForFragmentDemo\res\
     目录           0  2016-01-22 14:55  WeChatForFragmentDemo\res\drawable\
     目录           0  2016-01-22 14:55  WeChatForFragmentDemo\res\drawable-hdpi\
     文件        1769  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-hdpi\contacts_normal.png
     文件        1226  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-hdpi\contacts_press.png
     文件        2263  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-hdpi\discovery_normal.png
     文件        1640  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-hdpi\discovery_press.png
     文件        7278  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-hdpi\ic_launcher.png
     文件        1998  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-hdpi\message_normal.png
     文件        1289  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-hdpi\message_press.png
     文件        1636  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-hdpi\me_normal.png
     文件        1021  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-hdpi\me_press.png
     目录           0  2016-01-22 14:55  WeChatForFragmentDemo\res\drawable-ldpi\
     文件        7278  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-ldpi\ic_launcher.png
     目录           0  2016-01-22 14:55  WeChatForFragmentDemo\res\drawable-mdpi\
     文件        7278  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-mdpi\ic_launcher.png
     目录           0  2016-01-22 14:55  WeChatForFragmentDemo\res\drawable-xhdpi\
     文件        7278  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-xhdpi\ic_launcher.png
     目录           0  2016-01-22 14:55  WeChatForFragmentDemo\res\drawable-xxhdpi\
     文件        7278  2016-01-13 16:42  WeChatForFragmentDemo\res\drawable-xxhdpi\ic_launcher.png
     文件         300  2016-01-13 16:45  WeChatForFragmentDemo\res\drawable\contact_bac.xml
     文件         302  2016-01-13 16:46  WeChatForFragmentDemo\res\drawable\find_bac.xml
............此处省略27个文件信息