在毕加索加载图片后无法隐藏进度条？

Question

我试图在ma app中集成进度条.但我无法跟踪回调方法.进度条总是显示如何隐藏图像被锁定时？

holder.imageView = (ImageView) localView.findViewById(R.id.imageView1);
holder.progressBar = (ProgressBar) localView.findViewWithTag(R.id.progressBar1);

localView.setTag(holder);
url = getItem(paramInt);
Picasso.with(getApplicationContext())
.load(url)
.placeholder(R.drawable.ic_launcher)
.error(R.drawable.ic_launcher)
.fit()
.into(holder.imageView, new Callback() {

    @Override
    public void onSuccess() {
        holder.imageView.setVisibility(View.VISIBLE);
        holder.progressBar.setVisibility(View.INVISIBLE);        
    }

    @Override
    public void onError() {
        holder.progressBar.setVisibility(View.VISIBLE);
        holder.imageView.setVisibility(View.INVISIBLE);
    }
});

Answer 1

最后我修复了它。Picasso 2.0.0 beta 中有一个错误。使用了官方库