如何从一个片段机器人访问活动变量 [英] How to access Activity Variables from a fragment Android

问题描述

在活动，我有：

public class tabsmain extends Activity{
    public static Context appContext;

    public boolean lf_ch=false;

    public void onCreate(Bundle savedInstanceState){

我想访问，并可能从一个片段里tabsmain改变lf_ch;

I would like to access and possibly change lf_ch from a fragment inside tabsmain;

public class tabquests extends Fragment{ 
    public CheckBox lc;
@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)//onCreateView
    { 
lc.setChecked(//set it to lf_ch);

不过，我似乎无法访问lf_ch的价值。

However, I can't seem to access the value of lf_ch.

推荐答案

试试这个：

public View onCreateView(...){
  tabsmain xxx = (tabsmain)getActivity();
  lc.setChecked(xxx.lf_ch);
}

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