在 Android 中设置动态画廊时，它对我不起作用
我是 Android 新手。我有一个画廊，其中显示来自 URL 的图像。第一次设置图库时看不到图像，当我滚动图库时，所有图像都已设置。我登录了 Adapter（派生自 BaseAdapter）的 getView()，发现 getView 仅在我单击该项目后才起作用。 怎么解决这个问题..
@Override
public View getView(int arg0, View arg1, ViewGroup arg2) {
ImageView iv = new ImageView(context);<br>
//method that displays image from url
imageLoader.displayImage(myimageurls[arg0], activity, iv);
Log.i("Gallery", "Image URL = " + myimageurls[arg0]);<br>
}
I'm a newbie to Android. I have a gallery in which images are displayed from URL. I cannot see the images when the gallery is set up for the first time, When I scroll the gallery, then all the images are set. I logged in getView() of Adapter (derived from BaseAdapter), and saw that getView works only after I clicked the item.
How to resolve this..
@Override
public View getView(int arg0, View arg1, ViewGroup arg2) {
ImageView iv = new ImageView(context);<br>
//method that displays image from url
imageLoader.displayImage(myimageurls[arg0], activity, iv);
Log.i("Gallery", "Image URL = " + myimageurls[arg0]);<br>
}
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尝试在图库初始化后立即从适配器调用 notificationDataSetChanged() 。这会强制重绘特定的 AdapterView（本例中为图库）
JQCorreia
Try calling notifyDataSetChanged() from your adapter right after the initialization of your gallery. This forces a redraw on that particular AdapterView (Gallery in this case)
JQCorreia