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用于GridView中Android图像滑块的setOnClickListener

android-viewpager onclick gridview android

Im Batman · 技术社区 · 8 年前

我想既然imageSlider使用touchEvent来滑动图像,它可能已经禁用了click事件。但是我在图书馆里找不到它。

我的gridview中有一个复选框,当用户单击gridview时,我想将其选中或取消选中。

        mViewHolder.imageViewSlider.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Log.e("CLICKED","CLICKED"); // this is not triggering
            }
        });

      convertView.setTag(mViewHolder);
            convertView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
             // This is Working
              mViewHolder.checkBox.setChecked(!mViewHolder.checkBox.isChecked());
                }
       });

使现代化

但是有一种点击滑动的方法。但我不知道如何使用它触发复选框。

for(){
    DefaultSliderView textSliderView = new DefaultSliderView(mContext);
    textSliderView        
        .image(imagePath)
        .setOnSliderClickListener(this)
        .description(""+position)
        .setScaleType(BaseSliderView.ScaleType.FitCenterCrop);

    mViewHolder.imageView.addSlider(textSliderView);
}


   @Override
    public void onSliderClick(BaseSliderView slider) {
      // This one gets triggered but no idea making checkbox trigger
    }

2 回复 | 直到 8 年前

wexeteme 8 年前

首先,制作自己的适配器来扩展gridView元素。在您的情况下,适配器将是AndroidImageSlider元素。

我在我的案例中所做的示例:

public class ImageAdapter extends BaseAdapter {

    private Context mContext;
    private int iw, ih;
    private String tag = "**Template wallpapers**";

    private Activity myActivity;

    private ImageLoader imageLoader = null;

    public ImageAdapter(Activity activity, Context c) {
        myActivity = activity;
        mContext = c;
        iw = commonClass.iwidth;
        ih = commonClass.iheight;

        imageLoader = ImageLoader.getInstance();
    }

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

    @Override
    public String getItem(int position) {
        return MainActivity_GridView.mThumbIds.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    static class ViewHolder {
        ImageView image;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        View row = convertView;
        ViewHolder holder = null;

        if (convertView == null) {

            LayoutInflater inflater = myActivity.getLayoutInflater();
            row = inflater.inflate(R.layout.row_grid, parent, false);
            holder = new ViewHolder();
            holder.image = (ImageView) row.findViewById(R.id.image);
            holder.image.getLayoutParams().width = iw;
            holder.image.getLayoutParams().height = ih;
            holder.image.setScaleType(ImageView.ScaleType.CENTER_CROP);
            holder.image.setPadding(0, 0, 0, 0);
            row.setTag(holder);

        } else {
            holder = (ViewHolder) row.getTag();
        }

        if(MainActivity_GridView.mThumbIds.get(position).matches("\\d+")){
            String imageUri = "drawable://" + MainActivity_GridView.mThumbIds.get(position);
            ImageAware imageAware = new ImageViewAware(holder.image, false);
            imageLoader.displayImage(imageUri, imageAware);
        }else{
            String imageUri = MainActivity_GridView.mThumbIds.get(position);
            ImageAware imageAware = new ImageViewAware(holder.image, false);
            imageLoader.displayImage(imageUri, imageAware);
        }

        return row;
    }
}

然后,只需聆听gridView的点击:

GridView gv = (GridView) findViewById(R.id.gridView);
ImageAdapter imAdapter = new ImageAdapter(this, context);

imAdapter.notifyDataSetChanged();
gv.invalidateViews();
gv.setAdapter(imAdapter);

gridview.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
            // item has been clicked
            // you got the ID - so use that info to do what you want ^
        }
    });

Im Batman 8 年前

我最终使用以下方法更新数据库并重新加载ListView。这样我就可以勾选复选框了。

public void onSliderClick(BaseSliderView slider) {
      // This one gets triggered but no idea making checkbox trigger
 }