Fragment使用

Activity的按钮响应里实现Fragment切换：

package com.sg.zh;

import android.app.Activity;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import com.sg.zh.fragment.FragmentOne;
import com.sg.zh.fragment.FragmentTwo;

public class MainActivity extends Activity {
    private ImageButton imgSurvey;
    private ImageButton imgService;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        imgSurvey = (ImageButton)super.findViewById(R.id.img_survey);
        imgService = (ImageButton)super.findViewById(R.id.img_service);
        
        
        
        imgSurvey.setOnClickListener(new OnClickListenerImpl());
        imgService.setOnClickListener(new OnClickListenerImpl());

    }
    
    public class OnClickListenerImpl implements OnClickListener {

        @Override
        public void onClick(View v) {
            FragmentTransaction ft = getFragmentManager().beginTransaction();
            switch (v.getId()) {
                case R.id.img_survey:
                    
                    FragmentOne survey = new FragmentOne();  
                    ft.replace(R.id.container, survey);  
                    ft.commit(); 
                    break;
                    
                case R.id.img_service:

                    FragmentTwo service = new FragmentTwo();  
                    ft.replace(R.id.container, service);  
                    ft.commit(); 
                    break;

                default:
                    break;
            }

        }

    }

}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/bg"
    tools:context=".MainActivity" >

    <!-- 顶部 -->

    <RelativeLayout
        android:id="@+id/top_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/top_big_bg" >

        <!-- 返回按钮 -->

        <ImageView
            android:id="@+id/btn_back"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:src="@drawable/btn_back" />

        <TextView
            android:id="@+id/txt_title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:text="@string/exhibitors"
            android:textColor="@color/white" />

        <TextView
            android:id="@+id/txt_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:layout_marginRight="5dip"
            android:text="N2馆"
            android:textColor="@color/white" />
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/bottom_menu"
        android:layout_below="@id/top_layout"
        android:paddingLeft="5dip"
        android:paddingRight="5dip" />

    <!-- 底部菜单 -->

    <include
        android:id="@+id/bottom_menu"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        layout="@layout/bottom_menu" />

</RelativeLayout>

package com.sg.zh.fragment;

import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.sg.zh.R;

public class FragmentOne extends Fragment {

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
			Bundle savedInstanceState) {
		View view = inflater.inflate(R.layout.fragment_exhibitors, null);
		return view;
	}
	
}