修复了ImageLoader的警告:"尝试初始化之前已经初始化的ImageLoader"

Question

修复了ImageLoader的警告:"尝试初始化之前已经初始化的ImageLoader"

waw*_*los 2 java android universal-image-loader

在我的应用程序中,我有一些包含一些项目的列表视图.每个项目都有一个从远程网址下载的img.

我使用ImageLoader库将每个图像加载到我的应用程序中.

我的listview很好,我有所有图像,但我在LogCat中有一个警告:

02-05 15:16:17.938:W/ImageLoader(17363):尝试初始化之前已经初始化的ImageLoader.要使用新配置重新初始化ImageLoader,请首先调用ImageLoader.destroy().

我不知道如何解决这个问题？

这是我的适配器的代码:

public class ArticleListAdapterHome extends ArrayAdapter<ArticleHome> {

    Typeface faceLight = Typeface.createFromAsset(getContext().getAssets(), "fonts/Roboto-Light.ttf");
    Typeface faceBold = Typeface.createFromAsset(getContext().getAssets(), "fonts/Roboto-Bold.ttf");

    public ArticleListAdapterHome(Activity activity, List<ArticleHome> articles) {
        super(activity, 0, articles);
    }


    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        Activity activity = (Activity) getContext();

        LayoutInflater inflater = activity.getLayoutInflater();

        View rowView;
        ArticleHome article = getItem(position);

        if (position == 0) {

            rowView = inflater.inflate(R.layout.item_ligne_home_premier, null);

            ////////////////////////////////////////////////////////
            ///// IMAGE
            ///////////////////////////////////////////////////////
            ImageView imgfirst = (ImageView) rowView.findViewById(R.id.imgimg) ;

            DisplayImageOptions options = new DisplayImageOptions.Builder()
            .cacheInMemory(true)
            .cacheOnDisc(true)
            .build();

            ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(getContext())
            .defaultDisplayImageOptions(options)
            .threadPriority(Thread.MAX_PRIORITY)
            .denyCacheImageMultipleSizesInMemory()
            .memoryCacheSize(2 * 1024 * 1024)
            .build();

            ImageLoader imageLoader = ImageLoader.getInstance();
            imageLoader.init(config); 
            imageLoader.displayImage(article.getImage(), imgfirst);

            ListView listV = (ListView)parent;
            boolean pauseOnScroll = false; // or true
            boolean pauseOnFling = true; // or false
            PauseOnScrollListener listener = new PauseOnScrollListener(imageLoader, pauseOnScroll, pauseOnFling);
            listV.setOnScrollListener(listener);

            ////////////////////////////////////////////////////////
            ///// TITLE
            ///////////////////////////////////////////////////////
            TextView textView = (TextView) rowView.findViewById(R.id.titlepremier);     
            textView.setText(article.getTitle());
            textView.setTypeface(faceLight);
        }
        else {
            rowView = inflater.inflate(R.layout.item_ligne_home, null);

            ////////////////////////////////////////////////////////
            ///// IMAGE
            ///////////////////////////////////////////////////////
            ImageView img = (ImageView) rowView.findViewById(R.id.imgimg) ;

            DisplayImageOptions options = new DisplayImageOptions.Builder()
            .cacheInMemory(true)
            .cacheOnDisc(true)
            .build();

            ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(getContext())
            .defaultDisplayImageOptions(options)
            .threadPriority(Thread.MAX_PRIORITY)
            .denyCacheImageMultipleSizesInMemory()
            .memoryCacheSize(2 * 1024 * 1024)
            .build();

            ImageLoader imageLoader = ImageLoader.getInstance();
            imageLoader.init(config); 
            imageLoader.displayImage(article.getImage(), img);

            ListView listV = (ListView)parent;
            boolean pauseOnScroll = false; // or true
            boolean pauseOnFling = true; // or false
            PauseOnScrollListener listener = new PauseOnScrollListener(imageLoader, pauseOnScroll, pauseOnFling);
            listV.setOnScrollListener(listener);

            ////////////////////////////////////////////////////////
            ///// TITLE
            ///////////////////////////////////////////////////////
            TextView title = (TextView) rowView.findViewById(R.id.titlearticleothers);  
            title.setText(article.getTitle());
            title.setTypeface(faceBold);

            ////////////////////////////////////////////////////////
            ///// DESCRIPTION
            ///////////////////////////////////////////////////////
            TextView desc = (TextView) rowView.findViewById(R.id.descriptionarticleothers);
            desc.setText(article.getDescription());
            desc.setTypeface(faceLight);

            ////////////////////////////////////////////////////////
            ///// DATE
            ///////////////////////////////////////////////////////
            TextView date = (TextView) rowView.findViewById(R.id.date);
            String pubDate = article.getPubDate();
            SimpleDateFormat df = new SimpleDateFormat("EEE, dd MMM yyyy kk:mm:ss Z", Locale.ENGLISH);
            Date pDate;
            try {
                pDate = df.parse(pubDate);
                pubDate = DateUtils.getDateDifference(pDate);
                pubDate = pubDate.replace("-", "");
            } catch (ParseException e) {
                Log.e("DATE PARSING", "Error parsing date..");
                pubDate = "published by " + article.getAuthor();
            }
            date.setText("Il y a " +pubDate);

        }

        return rowView;

    }

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Answer 1

erd*_*ter 15

当您尝试初始化ImageLoader时,会发生此错误.

在我的应用程序中,我在不同的活动中以两种方式初始化了ImageLoader:

1:

imageLoader.init(ImageLoaderConfiguration.createDefault(this.getSherlockActivity()));

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2:

initImageLoader(); //where this function contained the configuration settings.

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在我的应用程序中,我使用的ViewPager是导致此错误,这就是原因:

重要的是要知道当您在其中打开选项卡时,ViewPager会自动在后台加载第二个选项卡.

假设这个初始化是在第一个选项卡上设置的.因此,当您转到第二个和第三个选项卡然后返回第二个选项卡然后加载第一个选项卡并尝试再次初始化ImageLoader.

您需要做的是检查它是否已初始化

if (!imageLoader.isInited()) {
    initImageLoader();
 }

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Answer 2

bru*_*max 6

ImageLoader只能初始化一次.每次调用getView()方法时都会初始化.在应用程序扩展的类中,可以更好地初始化imageLoder

public class MyApp extends Application {

    public void onCreate() {
        super.onCreate();
        ContextHolder.context = getApplicationContext();

        // Create global configuration and initialize ImageLoader with this configuration
        ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(getApplicationContext())
        .memoryCache(new UsingFreqLimitedMemoryCache(5 * 1024 * 1024)) // 5 Mb (delete most not used image)
        .build();
        ImageLoader.getInstance().init(config);
    }
}

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之后你的适配器

public class ArticleListAdapterHome extends ArrayAdapter<ArticleHome> {

Typeface faceLight = Typeface.createFromAsset(getContext().getAssets(), "fonts/Roboto-Light.ttf");
Typeface faceBold = Typeface.createFromAsset(getContext().getAssets(), "fonts/Roboto-Bold.ttf");
private ImageLoader imageLoader;

public ArticleListAdapterHome(Activity activity, List<ArticleHome> articles) {
    super(activity, 0, articles);
    imageLoader = ImageLoader.getInstance();
}


@Override
public View getView(int position, View convertView, ViewGroup parent) {

    Activity activity = (Activity) getContext();

    LayoutInflater inflater = activity.getLayoutInflater();

    View rowView;
    ArticleHome article = getItem(position);

    if (position == 0) {

        rowView = inflater.inflate(R.layout.item_ligne_home_premier, null);

        ////////////////////////////////////////////////////////
        ///// IMAGE
        ///////////////////////////////////////////////////////
        ImageView imgfirst = (ImageView) rowView.findViewById(R.id.imgimg) ;

        DisplayImageOptions options = new DisplayImageOptions.Builder()
        .cacheInMemory(true)
        .cacheOnDisc(true)
        .build();

        imageLoader.displayImage(article.getImage(), imgfirst);

        ListView listV = (ListView)parent;
        boolean pauseOnScroll = false; // or true
        boolean pauseOnFling = true; // or false
        PauseOnScrollListener listener = new PauseOnScrollListener(imageLoader, pauseOnScroll, pauseOnFling);
        listV.setOnScrollListener(listener);

        ////////////////////////////////////////////////////////
        ///// TITLE
        ///////////////////////////////////////////////////////
        TextView textView = (TextView) rowView.findViewById(R.id.titlepremier);     
        textView.setText(article.getTitle());
        textView.setTypeface(faceLight);
    }
    else {
        rowView = inflater.inflate(R.layout.item_ligne_home, null);

        ////////////////////////////////////////////////////////
        ///// IMAGE
        ///////////////////////////////////////////////////////
        ImageView img = (ImageView) rowView.findViewById(R.id.imgimg) ;

        DisplayImageOptions options = new DisplayImageOptions.Builder()
        .cacheInMemory(true)
        .cacheOnDisc(true)
        .build();

        ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(getContext())
        .defaultDisplayImageOptions(options)
        .threadPriority(Thread.MAX_PRIORITY)
        .denyCacheImageMultipleSizesInMemory()
        .memoryCacheSize(2 * 1024 * 1024)
        .build();

        ImageLoader imageLoader = ImageLoader.getInstance();
        imageLoader.init(config); 
        imageLoader.displayImage(article.getImage(), img);

        ListView listV = (ListView)parent;
        boolean pauseOnScroll = false; // or true
        boolean pauseOnFling = true; // or false
        PauseOnScrollListener listener = new PauseOnScrollListener(imageLoader, pauseOnScroll, pauseOnFling);
        listV.setOnScrollListener(listener);

        ////////////////////////////////////////////////////////
        ///// TITLE
        ///////////////////////////////////////////////////////
        TextView title = (TextView) rowView.findViewById(R.id.titlearticleothers);  
        title.setText(article.getTitle());
        title.setTypeface(faceBold);

        ////////////////////////////////////////////////////////
        ///// DESCRIPTION
        ///////////////////////////////////////////////////////
        TextView desc = (TextView) rowView.findViewById(R.id.descriptionarticleothers);
        desc.setText(article.getDescription());
        desc.setTypeface(faceLight);

        ////////////////////////////////////////////////////////
        ///// DATE
        ///////////////////////////////////////////////////////
        TextView date = (TextView) rowView.findViewById(R.id.date);
        String pubDate = article.getPubDate();
        SimpleDateFormat df = new SimpleDateFormat("EEE, dd MMM yyyy kk:mm:ss Z", Locale.ENGLISH);
        Date pDate;
        try {
            pDate = df.parse(pubDate);
            pubDate = DateUtils.getDateDifference(pDate);
            pubDate = pubDate.replace("-", "");
        } catch (ParseException e) {
            Log.e("DATE PARSING", "Error parsing date..");
            pubDate = "published by " + article.getAuthor();
        }
        date.setText("Il y a " +pubDate);

    }

    return rowView;

}

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