如何在片段中添加onClick

Question

Hello i want to add onClick option in a Fragment to a ImageView. I tried a few things but failed. Here is my Fragmet.java

public class Info extends Fragment{

public Info() {
    // Required empty public constructor
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment

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

}

Answer 1

Override

  @Override
  public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {

and use the view object, which is the same View you are returning in onCreateView , to look for the ImageView on which you want to set your onClickListener . Eg

  @Override
  public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        View imageView = view.findViewById(R.id.id_of_image_view);
        imageView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

        }
    });
  }

Answer 2

Instead of returning the view directly ,do this

View v=inflater.inflate(R.layout.info, container, false);

you can then use v to find reference to your ImageViews

ImageView iv=(ImageView)v.findViewById(R.id.imageview_id);

then set onClickListener as usual

iv.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            //do something
        }
    });

Answer 3

You have to have an ImageView in the layout R.layout.info. If the ImageView 's id is ivInLayout , you set an onClik mehtod like this:

public class Info extends Fragment{

    public Info() {
        // Required empty public constructor
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View v = inflater.inflate(R.layout.info, container, false);

        ImageView iv = (ImageView) v.findViwById(R.id.ivInLayout);
        iv.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(){
                 <What you want onClick on the image to do>
            }
        });
        return v;
    }

}