我有两个自定义列表视图,一个是垂直的,另一个是水平的。横向是垂直列表。垂直列表的一部分在
之下 <com.devsmart.android.ui.HorizontalListView
android:id="@+id/hlistview"
android:layout_width="match_parent"
android:layout_height="155dp"
android:layout_margin="6dp"
android:background="#fff"
/>
我已经使用这个库来处理水平列表视图。水平列表视图的行模板就是这个。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="150dp"
android:padding="6dip"
android:orientation="vertical" >
<TextView
android:id="@+id/txtDescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#000"
android:textSize="12sp"
android:gravity="center_horizontal"
android:text="likes"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="6dip"
android:orientation="vertical" >
<ImageView
android:id="@+id/IVImage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:contentDescription="@string/stalker"
/>
</LinearLayout>
</LinearLayout>
当我使用UIL库在My array adapter中的水平列表中填充数据时,它会根据textview的大小显示小图像和图像宽度的变化。当我在textview中写长文本时,它显示我的图像宽度等于textview的宽度。
这是我的水平列表视图的自定义适配器。
public class HomeHoriLVAdapter extends ArrayAdapter<HomeSliderClassForAdapter> {
Context context;
public ImageLoader imageLoader;
DisplayImageOptions options;
public HomeHoriLVAdapter(Context context, int resource,
List<HomeSliderClassForAdapter> objects) {
super(context, resource, objects);
File cacheDir = StorageUtils.getOwnCacheDirectory(context, "MyFolderCache");
imageLoader = ImageLoader.getInstance();
// Create configuration for ImageLoader (all options are optional)
ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(context)
// You can pass your own memory cache implementation
.diskCache(new UnlimitedDiscCache(cacheDir)) // You can pass your own disc cache implementation
.diskCacheFileNameGenerator(new HashCodeFileNameGenerator())
.build();
// Initialize ImageLoader with created configuration. Do it once.
imageLoader.init(config);
//imageLoader.init(ImageLoaderConfiguration.createDefault(a));
// imageLoader=new ImageLoader(activity.getApplicationContext());
options = new DisplayImageOptions.Builder()
.showImageOnLoading(R.drawable.stalker_logo_imageload)
.cacheInMemory(true)
.cacheOnDisk(true)
.displayer(new RoundedBitmapDisplayer(20))
.build();
// https://github.com/nostra13/Android-Universal-Image- Loader/blob/master/library/src/com/nostra13/universalimageloader/core/DisplayImageOptions.java
// link for more functions of DisplayImageOptions();
this.context = context;
}
private class ViewHolder {
TextView txtDescription;
ImageView IVImage;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
HomeSliderClassForAdapter rowItem = getItem(position);
LayoutInflater mInflater = (LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
convertView = mInflater.inflate(R.layout.horizontal_listitem, null);
holder = new ViewHolder();
holder.txtDescription = (TextView) convertView.findViewById(R.id.txtDescription);
holder.IVImage = (ImageView) convertView.findViewById(R.id.IVImage);
holder.IVImage.getLayoutParams().width = LayoutParams.MATCH_PARENT;
holder.IVImage.getLayoutParams().height = LayoutParams.MATCH_PARENT;
convertView.setTag(holder);
} else
holder = (ViewHolder) convertView.getTag();
Session asd = new Session(getContext());
asd.getAccessToken();
holder.txtDescription.setText(rowItem.Description);
display(holder.IVImage, rowItem.PhotoURL.concat("?access_token=" + asd.getAccessToken()));
return convertView;
}
public void display(ImageView img, String url, final ProgressBar spinner)
{
img.getLayoutParams().width = LayoutParams.MATCH_PARENT;
img.getLayoutParams().height = LayoutParams.MATCH_PARENT;
imageLoader.displayImage(url, img, options, new ImageLoadingListener() {
@Override
public void onLoadingStarted(String imageUri, View view) {
spinner.setVisibility(View.VISIBLE);
}
@Override
public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
spinner.setVisibility(View.GONE);
}
@Override
public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
spinner.setVisibility(View.GONE);
}
@Override
public void onLoadingCancelled(String imageUri, View view) {
}
});
}
public void display(ImageView img, String url)
{
imageLoader.displayImage(url, img, options, new ImageLoadingListener() {
@Override
public void onLoadingStarted(String imageUri, View view) {
}
@Override
public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
}
@Override
public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
}
@Override
public void onLoadingCancelled(String imageUri, View view) {
}
});
}
}
我希望我的图像宽度与父级匹配,平均值等于我的屏幕宽度和高度等于水平列表视图的高度,在我的情况下是155dp。
答案 0 :(得分:0)
使用以下代码
LayoutParams param=(LayoutParams) holder.IVImage.getLayoutParams();
param.width=image_dim;
param.height=image_dim;
holder.Places_iv.setLayoutParams(param);