这不是我第一次使用UIL，我是否在我的应用程序中使用了UIl，我无法在活动B 上使用它？有时在我反对后调用UIL onLoadingComplete。如果我将活动B代码转移到单独的项目，图像加载。
public class ExpandableCardListView2 extends FragmentActivity {
static CardArrayAdapter mCardArrayAdapter;
ArrayList<Card> cards;
public static Dialog FDialog;
public static Card card;
ImageView img;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_expandable_card_list_view2);
this.getActionBar().setDisplayHomeAsUpEnabled(true);
this.getActionBar().setDisplayShowHomeEnabled(false);
this.getActionBar().setBackgroundDrawable(new ColorDrawable(Color.parseColor("#d85700")));
setContentView(R.layout.activity_expandable_card_list_view2);
Fragment mFragment = new UniversalImageLoaderFragment();
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.replace(R.id.google_card_main, mFragment, "settings1");
ft.addToBackStack(null);
ft.commit();
}
UniversalImageLoaderFragment.java
public class UniversalImageLoaderFragment extends BaseFragment{
DisplayImageOptions options;
@Override
public String getTitleResourceId() {
return "Title";
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.demo_extras_fragment_picasso, container, false);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
initUniversalImageLoaderLibrary();
initCard();
}
/**
* Android-Universal-Image-Loader config.
*
* DON'T COPY THIS CODE TO YOUR REAL PROJECT! *
* I would recommend doing it in an overloaded Application.onCreate().
* It is just for test purpose
*
*
*/
private void initUniversalImageLoaderLibrary(){
File cacheDir = StorageUtils.getCacheDirectory(getActivity());
ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(getActivity())
.memoryCache(new LruMemoryCache(2 * 1024 * 1024))
.defaultDisplayImageOptions(DisplayImageOptions.createSimple())
.writeDebugLogs()
.build();
ImageLoader.getInstance().init(config);
options = new DisplayImageOptions.Builder()
.cacheInMemory(true)
.displayer(new SimpleBitmapDisplayer())
.showImageOnFail(R.drawable.ab_bg_black)
.build();
}
/**
* This method builds a simple card
*/
private void initCard() {
//Init an array of Cards
ArrayList<Card> cards = new ArrayList<Card>();
for (int i = 0; i < 200; i++) {
UniversalImageLoaderCard card = new UniversalImageLoaderCard(this.getActivity(),options);
card.setTitle("A simple card loaded with Universal-Image-Loader " + i);
card.setSecondaryTitle("Simple text..." + i);
card.setCount(i);
cards.add(card);
}
CardArrayAdapter mCardArrayAdapter = new CardArrayAdapter(getActivity(), cards);
CardListView listView = (CardListView) getActivity().findViewById(R.id.carddemo_extra_list_picasso);
if (listView != null) {
listView.setAdapter(mCardArrayAdapter);
}
}
}
UniversalImageLoaderCard.java
public class UniversalImageLoaderCard extends Card{
protected String mTitle;
protected String mSecondaryTitle;
protected int count;
DisplayImageOptions options;
public UniversalImageLoaderCard(Context context,DisplayImageOptions options) {
this(context, R.layout.dialog_notification2);
this.options=options;
}
public UniversalImageLoaderCard(Context context, int innerLayout) {
super(context, innerLayout);
init();
}
private void init() {
//Add thumbnail
UniversalCardThumbnail cardThumbnail = new UniversalCardThumbnail(mContext);
///cardThumbnail.setExternalUsage(true);
addCardThumbnail(cardThumbnail);
//Add ClickListener
setOnClickListener(new OnCardClickListener() {
@Override
public void onClick(Card card, View view) {
Toast.makeText(getContext(), "Click Listener card=", Toast.LENGTH_SHORT).show();
}
});
}
@Override
public void setupInnerViewElements(ViewGroup parent, View view) {
//Retrieve elements
TextView title = (TextView) parent.findViewById(R.id.textView1);
Log.i("##Inside setupInnerViewElements: ", "UniversalImageLoaderCard");
if (title != null)
title.setText(mTitle);
}
/**
* CardThumbnail which uses Universal-Image-Loader Library.
* If you use an external library you have to provide your login inside #setupInnerViewElements.
*
* This method is called before built-in method.
* If {@link it.gmariotti.cardslib.library.internal.CardThumbnail#isExternalUsage()} is false it uses the built-in method.
*/
class UniversalCardThumbnail extends CardThumbnail {
public UniversalCardThumbnail(Context context) {
super(context);
}
@Override
public void setupInnerViewElements(ViewGroup parent, View viewImage) {
SoftReference<AnimateFirstDisplayListener> animateFirstListener = new SoftReference<AnimateFirstDisplayListener>(new AnimateFirstDisplayListener());
/*
* If your cardthumbnail uses external library you have to provide how to load the image.
* If your cardthumbnail doesn't use an external library it will use a built-in method
*/
//It is just an example.
//In real case you should config better the imageLoader
ImageLoader imageLoader = ImageLoader.getInstance();
imageLoader.init(ImageLoaderConfiguration.createDefault(mContext .getApplicationContext()));
//Here you have to set your image with an external library
//Only for test, use a Resource Id and a Url
Log.i("##Inside setupInnerViewElements: ", "UniversalCardThumbnail");
imageLoader.displayImage("http://jinisyssoftware.com/wp-content/themes/jinisys/images/header-logo.png", (ImageView) viewImage.findViewById(R.id.img2), options, animateFirstListener.get());
/*
viewImage.getLayoutParams().width = 96;
viewImage.getLayoutParams().height = 96;
*/
}
}
public String getTitle() {
return mTitle;
}
public void setTitle(String title) {
mTitle = title;
}
public String getSecondaryTitle() {
return mSecondaryTitle;
}
public void setSecondaryTitle(String secondaryTitle) {
mSecondaryTitle = secondaryTitle;
}
public int getCount() {
return count;
}
public void setCount(int count) {
this.count = count;
}
private static class AnimateFirstDisplayListener extends SimpleImageLoadingListener {
static final List<String> displayedImages = Collections.synchronizedList(new LinkedList<String>());
@Override
public void onLoadingStarted(String imageUri, View view) {
}
@Override
public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
Log.i("##Inside onLoadingFailed: ", "value");
}
@Override
public void onLoadingCancelled(String imageUri, View view) {
Log.i("##Inside onLoadingCancelled: ", "value");
}
@Override
public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
if (loadedImage != null) {
WeakReference<ImageView> imageView = new WeakReference<ImageView>((ImageView) view);
boolean firstDisplay = !displayedImages.contains(imageUri);
if (firstDisplay) {
Log.i("##Inside onLoadingComplete: ", "value");
FadeInBitmapDisplayer.animate(imageView.get(), 500);
displayedImages.add(imageUri);
}
}
}
}
}
答案 0 :(得分：0)
我在我的程序中多次使用UIL，这么多初始化。我所做的是创建了一个包含一个函数的类，该函数将返回UIL的新实例，这样我就可以在程序中访问它。