我SimpleDraweeView
在ListView
项目中使用过。如果 header url 不为 null,则显示来自网络的图像,或者显示来自本地 drawable 的默认图像。
代码如下:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
convertView = LayoutInflater.from(context).inflate(R.layout.info_contact_item,null);
holder.ivHeader = findViewById(convertView, R.id.iv_header);
holder.setTag(holder);
} else {
holder = (BaseViewHolder) convertView.getTag();
}
final String url = data.get(position).get("headerUrl");
if (StringUtil.isNull(url)){
holder .ivHeader.setBackgroundResource(R.drawable.default_head_icon);
}else{
ImageRequest imageRequest = ImageRequestBuilder.newBuilderWithSource(Uri.parse(uri))
.setAutoRotateEnabled(true)
.setLocalThumbnailPreviewsEnabled(true) //
.setProgressiveRenderingEnabled(true) //
.build();
DraweeController controller = Fresco.newDraweeControllerBuilder()
.setImageRequest(imageRequest)
.setOldController(simpleDraweeView.getController())
.setAutoPlayAnimations(true)
.build();
holder.ivHeader.setController(controller);
}
return convertView;
}
当我滚动ListView
到最后时,SimpleDraweeView
显示与最后一个屏幕图像数据相同的图像。有人有同样的问题吗?