cannot convert from android.app.FragmentTransaction to support.v4

[qq_33776359]

package com.example.laile;
import android.util.Log;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.widget.RadioGroup;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.Fragment;


import android.widget.RadioGroup.OnCheckedChangeListener;
public class MainActivity extends Activity {
private final String TAG = "SpeedDialActivity";
private RadioGroup mRadioGroup;
private tab22 mSpeeddialFragmentTwo;
private tab11 mSpeeddialFragmentOne;
private tab33 mSpeeddialFragmentThree;
private FragmentTransaction transaction;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.qq);
init_date();
setupWidgets();
}
private void init_date(){
transaction = getFragmentManager().beginTransaction();
if (null == mSpeeddialFragmentOne) {


这里是程序的一部分，红得那个一直解决不了，希望各位高手能指点一下，谢谢
提示是Description Resource Path Location Type
Type mismatch: cannot convert from android.app.FragmentTransaction to android.support.v4.app.FragmentTransaction MainActivity.java /laile/src/com/example/laile line 25 Java Problem

[哎，真难]

继承的fragment包继承错了

[qq_33776359]

应该继承哪一个包？我是新手，希望你能够说得清楚一点，谢谢啦

[qq_33776359]

引用 1 楼 heaimnmn 的回复:

继承的fragment包继承错了

新人看看是不是这样回复的，是继承什么包，具体怎么做，能不能说清楚一点，真的不会怎么操作，谢谢你

[RunningShadow_007]

transaction = getFragmentManager().beginTransaction(); 改成getSupportedFragmentManager.beginTransaction;