在ArrayAdapter使用ImageFetcher回收问题 [英] Recycling issues in ArrayAdapter using ImageFetcher
问题描述
我目前使用的(或者至少尝试使用)Droidparts ImageFetcher在我的应用程序。
有样品提供code显示它如何与CursorAdapter的,但我一直无法理解这一切和我ArrayAdapter复制。我的认为的我所理解的东西InjectDependency是如何工作的,但如果这既可以进一步解释或不包含在答案,我会很感激。
I'm currently using (or at least attempting to use) Droidparts ImageFetcher in my application. There is sample code available showing how it works with CursorAdapter but I haven't been able to understand all of it and replicate it with my ArrayAdapter. I think I understand how the InjectDependency stuff works, but if that could either be further explained or not included in the answer, I'd be grateful.
不管怎么说,我的问题是,如何从错误的图像加载阻止我imageViews一旦被回收?我试图附加一个imageHolder的作为标记的看法,但它没有工作,我无法看到它背后的逻辑...
Anyways, my question is, how do I stop my imageViews from loading with the wrong images once they have been recycled? I've tried attaching an ImageHolder as a tag to the view but it hasn't worked and I can't see the logic behind it...
下面是我的code:
@Override
public View getView( int position, View view, ViewGroup parent )
{
if( view == null )
{
LayoutInflater inflater = ( LayoutInflater ) m_context.getSystemService( Context.LAYOUT_INFLATER_SERVICE );
view = inflater.inflate( m_resourceId, parent, false );
}
TextView titleView = ( TextView ) view.findViewById( R.id.title );
if( titleView != null ) titleView.setText( m_values.get( position ).title );
ImageView imageView = ( ImageView ) view.findViewById( R.id.image );
if( imageView != null )
{
imageView.setImageDrawable( null );
ViewHolder holder = new ViewHolder();
holder.imageView = imageView;
m_imageFetcher = new ImageFetcher( m_context );
m_imageFetcher.attachImage(m_values.get( position ).imageUrl, holder.imageView, null, 10, null);
view.setTag(holder);
}
return view;
}
任何指针或例子是大大AP preciated,谢谢!
Any pointer or example would be greatly appreciated, thanks!
推荐答案
我建议你到延伸 org.droidparts.adapter.widget.ArrayAdapter
已包含实例 LayoutInflater
。
I'd recommend you to extends org.droidparts.adapter.widget.ArrayAdapter
that already contains an instance of LayoutInflater
.
如果您这样做,这里的code,逻辑应该很容易遵循:
If you do so, here's the code, the logic should be easy to follow:
public class MyArrayAdapter extends ArrayAdapter<MyModel> {
private final ImageFetcher imageFetcher;
public MyArrayAdapter(Context ctx, List<MyModel> list) {
super(ctx, list);
imageFetcher = new ImageFetcher(ctx);
}
@Override
public View getView(int position, View view, ViewGroup parent) {
if (view == null) {
view = layoutInflater.inflate(m_resourceId, null);
ViewHolder holder = new ViewHolder();
holder.titleView = ViewUtils.findViewById(view, R.id.title);
holder.iconView = ViewUtils.findViewById(view, R.id.image);
view.setTag(holder);
}
ViewHolder holder = (ViewHolder) view.getTag();
holder.iconView.setImageDrawable(null);
MyModel item = getItem(position);
holder.titleView.setText(item.title);
imageFetcher.attachImage(item.iconUrl, holder.iconView);
return view;
}
private static class ViewHolder {
TextView titleView;
ImageView iconView;
}
}
还检查了它的 setContent(...)
方法来替代在构造函数中提供对象列表。
当然,确保你已经声明&LT;使用许可权的android:name =android.permission.INTERNET对/&GT;
Also check out it's setContent(...)
method as an alternative to providing object list in the constructor.
And of course make sure that you've declared <uses-permission android:name="android.permission.INTERNET" />
.
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