Fragment的向下兼容

Fragment的向下兼容

1. Fragment中导v4包

1. Activity中继承FragmentActivity, 导v4包

2. 附上点击事件的逻辑

//1.创建fragment对象
CVSFragment fg = new CVSFragment();
//2.获取fragment管理器
FragmentManager fm = getSupportFragmentManager();
//3.开启事务
FragmentTransaction ft = fm.beginTransaction();
//4.把fg1设置显示在帧布局中
ft.replace(R.id.fl_content, fg);
//5.提交事务
ft.commit();  

1. 注意CVSFragment中也必须导v4包

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

public class CVSFragment extends Fragment{

    public static CVSFragment getInstance(){
        CVSFragment cvsFragment = new CVSFragment();
        return cvsFragment;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {

        return inflater.inflate(R.layout.fragment_cvs, container, false);
    }
}