从gridView

Question

我有一张带有照片的GridView。

public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_me, container, false);
        TextView t = (TextView) view.findViewById(R.id.textName);
        name = MySharedPreferences.getInstance(getActivity()).getName();
        t.setText(name);
        gridView = (GridView) view.findViewById(R.id.gridPhoto);
        img = new ImageAdapter(getActivity(), path);
        gridView.setAdapter(img);
        gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                //code
            }
        });
        requestPath();
        return view;
    }

在requestPath（）中，使用图像的url设置ImageAdapter。
在onItemClick我想在网格中获取图像
这是ImageAdapter

public class ImageAdapter extends BaseAdapter {
    private Context context;
    private final LayoutInflater inflater;
    private List<PathImage> path;
    private String username = null;


    public ImageAdapter(Context c, List<PathImage> path){
        context = c;
        this.path = path;
        inflater = LayoutInflater.from(context);
    }


    public ImageAdapter(Context c, List<PathImage> path, String username){
        context = c;
        this.path = path;
        inflater = LayoutInflater.from(context);
        this.username = username;
    }

    @Override
    public int getCount() {
        return path.size();
    }

    @Override
    public Object getItem(int position) {
        return path.get(position);
    }

    @Override
    public long getItemId(int position) {

        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View v = convertView;
        ImageView imageView;

        if (v == null) {
            v = inflater.inflate(R.layout.gridview_item, parent, false);
            v.setTag(R.id.picture, v.findViewById(R.id.picture));
        }
        imageView = (ImageView) v.getTag(R.id.picture);
        String url = "";
        if(username == null) {
             url = "http://example.com/image/" + MySharedPreferences.getInstance(context).getUsername() + "/";
        }else{
            url = "http://example.com/image/" + username + "/";
        }
        Glide.with(context).load(url + path.get(position).getPath()).into(imageView);
        return v;
    }

    public void updatePath(List<PathImage> p){
        path = p;
        this.notifyDataSetChanged();
    }

}

当我点击gridview时，我想在另一个片段中显示图像。
如何将图像从一个片段移动到另一个片段？

Answer 1

在ImageAdapter中

，实现如下所示的客户回调：

private ImageViewClickListener mImageViewClickListener;

public interface ImageViewClickListener {
    void onImageClicked(int position);
}

public void setImageViewClickListener (ViewClickListener viewClickListener) {
    mImageViewClickListener = viewClickListener;
}

现在，在您的活动中，实现ImageViewClickListener接口并调用imageAdapter.setImageViewClickListener（this）并在getview中实现以下代码：

imageView.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {
       mImageViewClickListener.onImageClicked(position);
    }
});