fragment事物隐藏显示

package com.example.works;

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

import android.content.Intent;
import android.graphics.Color;
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.FragmentPagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

import com.baidu.mapapi.SDKInitializer;
import com.example.fragment.ContentFragment01;
import com.example.fragment.ContentFragment02;
import com.example.fragment.ContentFragment03;

public class MainActivity extends FragmentActivity implements OnClickListener{
    private TextView home;
    private TextView jie;
    private TextView ren;
    private FragmentManager fragmentManager;
    private ContentFragment01 f1;
    private ContentFragment02 f2;
    private ContentFragment03 f3;
    
    

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        SDKInitializer.initialize(getApplicationContext());  
        setContentView(R.layout.activity_main);
        
        home = (TextView) findViewById(R.id.home);
        jie = (TextView) findViewById(R.id.jie);
        ren = (TextView) findViewById(R.id.ren);
        
         fragmentManager = getSupportFragmentManager();
      //得到事务对象fragmentTransaction
       FragmentTransaction fragmentTransaction=fragmentManager.beginTransaction();
       f1 = new ContentFragment01();
          f2 = new ContentFragment02();
          f3 = new ContentFragment03();

           fragmentTransaction.add(R.id.frame, f1, "f1");
           fragmentTransaction.add(R.id.frame, f2, "f2");
           fragmentTransaction.add(R.id.frame, f3, "f3");
           //隐藏指定的fragment
           fragmentTransaction.hide(f3).hide(f2).show(f1);
           
     //提交事务
       fragmentTransaction.commit();

        home.setOnClickListener(this);
        jie.setOnClickListener(this);
        ren.setOnClickListener(this);
        setbuttoncolor(R.id.home);
        
        
    }
@SuppressWarnings("unused")
private void setbuttoncolor(int in){
    switch (in) {
    case R.id.home:
        home.setTextColor(Color.RED);
        jie.setBackgroundResource(R.drawable.u31);
        ren.setTextColor(Color.BLACK);
        
        break;

    case R.id.jie:
        home.setTextColor(Color.BLACK);
        jie.setBackgroundResource(R.drawable.u49);
        ren.setTextColor(Color.BLACK);
        
        break;
    case R.id.ren:
        
        home.setTextColor(Color.BLACK);
        jie.setBackgroundResource(R.drawable.u31);
        ren.setTextColor(Color.RED);
        
        break;
    }
}
    public void onClick(View v) {
        // TODO Auto-generated method stub
        switch (v.getId()) {
        case R.id.home:
            setbuttoncolor(R.id.home);
            FragmentTransaction transaction1=fragmentManager.beginTransaction();
            transaction1.hide(f3).hide(f2).show(f1);
               
             //提交事务
            transaction1.commit();
            
            break;

        case R.id.jie:
            setbuttoncolor(R.id.jie);
            FragmentTransaction transaction2=fragmentManager.beginTransaction();
            transaction2.hide(f3).hide(f1).show(f2);
               
             //提交事务
            transaction2.commit();
            
            break;
        case R.id.ren:
            setbuttoncolor(R.id.ren);
            FragmentTransaction transaction3=fragmentManager.beginTransaction();
            transaction3.hide(f1).hide(f2).show(f3);
               
             //提交事务
            transaction3.commit();
            
            break;
        }
    }


    
}

 <FrameLayout
         android:id="@+id/frame"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:background="#f00"
        android:layout_weight="8"
        android:orientation="horizontal"
           >

    
    </FrameLayout>