RadioGroup+Fragment实现页面之间的切换

1.现在好多APP都用的这种方法,自己开发的时候也写了一个这样的框架,点击是可以实现切换的.先上效果图

2.参考代码

MainActivity 

package com.ythl.shouyoufanli;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;

import com.ythl.fragment.FragmentFactory;

/**
 * @author Administrator
 * 主界面的活动界面
 */
public class MainActivity extends FragmentActivity {
	private FragmentManager mFragmentManager;
    private RadioGroup radioGroup;
  
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity);

        //获取FragmentManager
        mFragmentManager = getSupportFragmentManager();
        
        //获取radioGroup控件
        radioGroup = (RadioGroup) findViewById(R.id.rg_tab);
          
        //监听点击按钮事件,实现不同Fragment之间的切换
        radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        	
       @Override
       public void onCheckedChanged(RadioGroup group, int checkedId) {
                FragmentTransaction transaction = mFragmentManager.beginTransaction();
                Fragment fragment = FragmentFactory.getInstanceByIndex(checkedId);
                transaction.replace(R.id.fl_content, fragment);
                transaction.commit();
            }
        });
    }

}

activity.xml

FragmentFactory

package com.ythl.fragment;

import com.ythl.shouyoufanli.R;

import android.support.v4.app.Fragment;

/**
 * @author Administrator
 * 定义一个工厂模式，
 * 来实现根据下标的位置返回相应的Fragment
 */
public class FragmentFactory {
    public static Fragment getInstanceByIndex(int index) {
        Fragment fragment = null;
        switch (index) {
            case R.id.rb_gamecenter:
                fragment = new GameCenterFragment();
                break;
            case R.id.rb_giftcenter:
                fragment = new GiftCenterFragment();
                break;
            case R.id.rb_tradecenter:
                fragment = new TradeCenterFragment();
                break;
            case R.id.rb_accountscenter:
                fragment = new AccountsCenterFragment();
                break;
        }
        return fragment;
    }
}

BaseFragment

package com.ythl.fragment;



import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.ythl.shouyoufanli.MainActivity;

/**
 * @author Administrator
 * fragment的基类
 * 抽取fragment的共性,复用代码
 */
public abstract class BaseFragment extends Fragment {
	//主页面的上下文
	public  MainActivity mContext;
	@Override
	public void onCreate(Bundle savedInstanceState) {
		
		//获取上下文
		mContext = (MainActivity) getActivity();
		super.onCreate(savedInstanceState);
		
	}

	//一定要实现的方法
	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
			Bundle savedInstanceState) {
		return initView();
	}
	
	/**
	 * 定义为抽象方法,子类必须实现
	 * @return
	 */
	public abstract View initView();
	
	/**
	 * 初始化数据
	 */
	public void initData() {
		
	}

	/**
	 * 初始化事件
	 */
	public void initEvent() {
		
	}
	
	//此方法只执行一次
	@Override
	public void onActivityCreated(Bundle savedInstanceState) {
		//只要activity 不销毁,此方法 就只调用一次
		initData();
		initEvent();
		
		super.onActivityCreated(savedInstanceState);
	}
	
	@Override
	public void onStart() {
		
		super.onStart();
	}
}

每一个Fragment中的代码
AccountsCenterFragment

package com.ythl.fragment;

import android.graphics.Color;
import android.view.View;
import android.widget.TextView;


/**
 * @author Administrator
 * 帐号中心的Fragment
 */
public class AccountsCenterFragment extends BaseFragment{

	@Override
	public View initView() {
		TextView tv = new TextView(mContext);
		tv.setText("帐号中心");
		tv.setTextColor(Color.BLACK);
		tv.setTextSize(30);
		return tv;
	}

}

GameCenterFragment

package com.ythl.fragment;

import android.graphics.Color;
import android.view.View;
import android.widget.TextView;


/**
 * @author Administrator
 * 游戏中心的Fragment
 */
public class GameCenterFragment extends BaseFragment{

	@Override
	public View initView() {
		TextView tv = new TextView(mContext);
		tv.setText("游戏中心");
		tv.setTextColor(Color.BLACK);
		tv.setTextSize(30);
		return tv;
	}

}

GiftCenterFragment

package com.ythl.fragment;

import android.graphics.Color;
import android.view.View;
import android.widget.TextView;



/**
 * @author Administrator
 * 礼包中心的Fragment
 */
public class GiftCenterFragment extends BaseFragment{

	@Override
	public View initView() {
		TextView tv = new TextView(mContext);
		tv.setText("礼包中心");
		tv.setTextColor(Color.BLACK);
		tv.setTextSize(30);
		return tv;
	}

}

TradeCenterFragment

package com.ythl.fragment;

import android.graphics.Color;
import android.view.View;
import android.widget.TextView;


/**
 * @author Administrator
 * 交易中心的Fragment
 */
public class TradeCenterFragment extends BaseFragment{

	@Override
	public View initView() {
		TextView tv = new TextView(mContext);
		tv.setText("交易中心");
		tv.setTextColor(Color.BLACK);
		tv.setTextSize(30);
		return tv;
	}

}

主页的底部的图标