选择后如何在网格视图中放大图像

Question

I want to enlarge my Image when it is selected. My problem is Image is selected, but not enlargened.

I have tried many things like enlarge imageView in XML but no work.

You will see below the code for image selection:

  public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            convertView = mInflater.inflate(R.layout.grid_row, null);
            holder = new ViewHolder();
            holder.mImageView = (ImageView) convertView.findViewById(R.id.image);
            holder.mImageView.setOnClickListener(this);
            holder.mImageNone = (ImageView) convertView.findViewById(R.id.image_none);
            holder.mImageNone.setOnClickListener(this);
            holder.mImageViewSelected = (ImageView) convertView.findViewById(R.id.image_selected);
            holder.mImageViewSelected.setOnClickListener(this);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }
        GridViewData data = mImagePath.get(position);
        holder.mImageNone.setTag(data);
        holder.mImageViewSelected.setTag(data);
        if (data.getSelected()) {
            holder.mImageViewSelected.setVisibility(View.VISIBLE);
        } else {
            holder.mImageViewSelected.setVisibility(View.INVISIBLE);
        }

and the next part of this is

  public void onClick(View v) {
            switch (v.getId()) {
                case R.id.image: {


                    break;
                }
                case R.id.image_none: {
                    GridViewData data = (GridViewData) v.getTag();
    //
                    if (data.getSelected()) {
                        data.setSelcted(false);
                    } else {
                        data.setSelcted(true);
                    }

                    notifyDataSetChanged();
                    break;
                }
                case R.id.image_selected: {
                    GridViewData data = (GridViewData) v.getTag();

                    if (data.getSelected()) {
                        data.setSelcted(false);
                    } else {
                        data.setSelcted(true);
                    }

                    notifyDataSetChanged();
                    break;

Answer 1

Add something like this in to your onClickListener:
imageView.animate().scaleX(1.1).scaleY(1.1f)

// it means when you select this image it will be enlarged. Replace imageview with your Imageview name

and in ViewHolder view bind method don't forger to add 'if, else' check for checking if it is selected and setting scale for selected items.