在片段按钮点击时无法正常工作 [英] button in fragment not working when clicked

问题描述

我在片段的按钮，该按钮，我不得不重写的onClick（）方法，但它不工作。
我有一个Taost和日志也正在单击按钮时。

I have a button in fragment, and for that button i had override onClick() method, but its not working. i have a Taost and a Log too when the button is being clicked.

public class DataShown extends Fragment  implements OnClickListener{

Button tv;
TextView textview;
Activity activity=getActivity();
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    Log.d("3", "started");
    View rootView = inflater.inflate(R.layout.datashown, container, false);
    Log.d("3", "closed");
    textview=(TextView) rootView.findViewById(R.id.textView1);
    tv = (Button) rootView.findViewById(R.id.configButton);
    tv.setOnClickListener((OnClickListener) activity);
return rootView;
}//onCtreate

@Override
public void onClick(View arg0) {
    // TODO Auto-generated method stub
    Log.d("onClick","1");
    Toast.makeText(activity, "on click", Toast.LENGTH_SHORT).show();
}
}

为什么它发生，我不知道，可能是其愚蠢的错误。
现在，敬酒是显示错误，则接受上下文对象，所以我提供的活动，不工作。

why its happening, i have no idea, may be its silly mistake. Now the toast is showing error, is accepts context object so i provided activity, not working.

推荐答案

修改

tv.setOnClickListener((OnClickListener) activity);

到

tv.setOnClickListener(this);

和的onClick 方法变更

Toast.makeText(activity, "on click", Toast.LENGTH_SHORT).show();

到

Toast.makeText(getActivity(), "on click", Toast.LENGTH_SHORT).show();

和删除

Activity activity=getActivity();

因为你做抛砖引玉吧片段连接到活动之前。

because you did initiate it before fragment attached to activity.

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