FragmentMid.java

package com.example.test4fragment;

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

public class FragmentMid extends Fragment {

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
			Bundle savedInstanceState) {
		View root = inflater.inflate(R.layout.fragment_mid, null);
		root.findViewById(R.id.btn).setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				Log.e("test", "FragmentMid, btn click");
			}
		});
		return root;
	}

}