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提示错误:The method replace in the type.. is not applicable for the argument......

在最近新学fragment的时候出现了一个错误:

The method replace(int, Fragment) in the type FragmentTransaction is not applicable for the arguments (int, MyFragment)

新建fragment的时候

Fragment newfragment =new MyFragment();
fragmentTransaction.replace(R.layout.activity_main,newfragment ).commit();

提示错误:The method replace(int, Fragment) in the type FragmentTransaction is not applicable for the arguments (int, MyFragment)


错误代码:

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package com.example.testforfragment;import android.os.Bundle;import android.app.Activity;import android.app.FragmentManager;import android.app.FragmentTransaction;import android.support.v4.app.Fragment;import android.support.v4.app.Fragment.*;import android.view.Menu;public class MainActivity extends Activity {

    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        FragmentManager fragmentManager = getFragmentManager();
        FragmentTransaction  fragmentTransaction = fragmentManager.beginTransaction();
        Fragment newfragment =new MyFragment();
        fragmentTransaction.replace(R.layout.activity_main,newfragment ).commit();
    }

    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);        return true;
    }

}

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修改:

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package com.example.testforfragment;import android.os.Bundle;import android.app.Activity;import android.support.v4.app.Fragment;import android.support.v4.app.FragmentActivity;import android.support.v4.app.FragmentManager;import android.support.v4.app.FragmentTransaction;import android.view.Menu;public class MainActivity extends FragmentActivity {

    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        FragmentManager fragmentManager = getSupportFragmentManager();
        FragmentTransaction  fragmentTransaction = fragmentManager.beginTransaction();
        Fragment newfragment =new MyFragment();
        fragmentTransaction.replace(R.layout.activity_main,newfragment ).commit();
    }

    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);        return true;
    }

}

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在出错的时候一直找不到根源,然后网上找了下,找到了问题所在点,转自http://www.cnblogs.com/1114250779boke/p/3867494.html

本文出自 “知行合一” 博客,请务必保留此出处http://poarry.blog.51cto.com/5970996/1570805

提示错误:The method replace in the type.. is not applicable for the argument......