我有一个 FragmentActivity ，我添加一个片段。 根据一些情况，我想访问按钮从他们那片段的布局和变化的点击侦听器。

I have a FragmentActivity where I add a Fragment. Depending on some situation, I want to access Buttons from that fragment's layout and change click listeners of them.

我做的是：

View view = myFragment.getView();
Button myButton = (Button) view.findViewById(R.id.my_button);
myButton.setOnClickListener(new MyClickListener());

但视图变量总是空。

我怎样才能获得活动的看法？

How can I get the view of the activity?

推荐答案

如果您要访问你的组件，并设置一些数据，我建议你做这样的片段里面的方法：

If you want to access your component and set some data, I suggest you to make a method inside the fragment like this:

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

public class DetailFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.details, container, false);
        return view;
    }


    public void setSettings(){
        Button button = (Button) getView().findViewById(R.id.my_button);
        button.setOnClickListener(new MyClickListener());
    }
}