Fragemnt和TextView的交互（TextView在LinearLayout中）

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;

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

public class MainActivity extends FragmentActivity {
 private LinearLayout mlinearlayout;    //装载TextView的布局
    private FragmentManager mFragmentManager;
    private List<Fragment> mfragmentList;   //fragment的集合
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //初始化
        init();
        //开启事务   将所有Fragment加入布局
        mFragmentManager = getSupportFragmentManager();
        FragmentTransaction transaction = mFragmentManager.beginTransaction();
        //处理事务
        XinWen_Fragment xinWenFragment= new XinWen_Fragment();
        mfragmentList.add(xinWenFragment);
        transaction.add(R.id.fragment_layout, xinWenFragment, "XINWEN");
        transaction.hide(xinWenFragment);

        TuPian_Fragment tuPinFragment = new TuPin_Fragment();
        mfragmentList.add(tuPinFragment);
        transaction.add(R.id.fragment_layout, tuPinFragment, "TUPIN");
        transaction.hide(tuPinFragment);

        ShiPin_Fragment shiPinFragment = new ShiPin_Fragment();
        mfragmentList.add(shiPinFragment);
        transaction.add(R.id.fragment_layout, shiPinFragment, "SHIPIN");
        transaction.hide(shiPinFragment);

        WoDe_Fragment woDeFragment = new WoDe_Fragment();
        mfragmentList.add(woDeFragment);
        transaction.add(R.id.fragment_layout,woDeFragment,"WODE");
        transaction.hide(woDeFragment);
        //展示一个Fragment
        transaction.show(xinWenFragment);
        //提交事务
        transaction.commit();



    }
   public void init(){
       mlinearlayout = (LinearLayout)findViewById(R.id.main_layout);
       mfragmentList = new ArrayList<Fragment>();
       //设置默认选中的TextView
       mlinearlayout.getChildAt(0).setSelected(true);
       //外层for循环是为view添加标签
       for (int i=0;i<4;i++){
           TextView view = (TextView) mlinearlayout.getChildAt(i);
           view.setTag(i);
           view.setOnClickListener(new View.OnClickListener() {
               @Override
               public void onClick(View v) {
                   int index= (int) v.getTag();
                 FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction();
               //内层循环是把Fragment和TextView交互起来
                   for(int i=0;i<4;i++){
                       if (i==index){
                           mlinearlayout.getChildAt(i).setSelected(true);
                           fragmentTransaction.show(mfragmentList.get(i)) ;
                       }else{
                           mlinearlayout.getChildAt(i).setSelected(false);
                           fragmentTransaction.hide(mfragmentList.get(i)) ;
                       }

                   }
                   fragmentTransaction.commit();
               }
           });
       }
   }
}