android - 使用 Universal Image Loader 和图像刷新时出现内存不足错误

Question

我正在使用通用图像加载器将图像显示为 ListView 中的缩略图，但是我遇到了内存不足错误，当我滚动列表时，新 View 显示的是列表未打开时的第一个 View 的图像滚动阶段，但图像被设置为应有的正确图像。

public class NewAdapter extends BaseAdapter {

    private Activity activity;
    private ArrayList<String> movieThumbnail;
    private ArrayList<String> movieText;
    private static LayoutInflater inflater=null;
    static File cacheDir;

    ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(activity)
    .memoryCache(new WeakMemoryCache())
    .denyCacheImageMultipleSizesInMemory()
    .discCache(new UnlimitedDiscCache(cacheDir))
    .threadPoolSize(5)
    .imageDownloader(new URLConnectionImageDownloader(120 * 1000, 120 * 1000))
    .enableLogging()
    .build();

    DisplayImageOptions options = new DisplayImageOptions.Builder()
    .cacheOnDisc()
    .cacheInMemory()
    .bitmapConfig(Bitmap.Config.RGB_565)
    .imageScaleType(ImageScaleType.IN_SAMPLE_INT)
    .build();

    private ImageLoader imageLoader= ImageLoader.getInstance();

    public NewAdapter(Activity a, ArrayList<String> movieThumbnail, ArrayList<String> movieText) {
        activity = a;
        /*data=d;*/
        this.movieThumbnail = movieThumbnail;
        this.movieText = movieText;
        inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED))
            cacheDir=new File(android.os.Environment.getExternalStorageDirectory(),"JunkFolder");
        else
            cacheDir=activity.getCacheDir();
        if(!cacheDir.exists())
            cacheDir.mkdirs();

        imageLoader.init(config);

    }

    public int getCount() {
        return movieText.size();
    }

    public Object getItem(int position) {
        return position;
    }

    public long getItemId(int position) {
        return position;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        View vi=convertView;
        if(convertView==null)
              vi = inflater.inflate(R.layout.listrow, null);

        TextView text=(TextView)vi.findViewById(R.id.rowListTextView);
        ImageView image=(ImageView)vi.findViewById(R.id.movieImage);
        text.setText(movieText.get(position));
        imageLoader.displayImage(movieThumbnail.get(position), image, options);
        return vi;
    }
}

这是 ImageView 和 TextView 的 Xml 布局

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/text_relativelayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/latest_list_toggle" />


    <ImageView
        android:id="@+id/movieImage"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_marginLeft="12dp"
        android:layout_marginTop="14dp" />

    <TextView
        android:id="@+id/rowListTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@+id/movieImage"
        android:paddingBottom="10dp"
        android:paddingLeft="10dp"
        android:paddingRight="21dp"
        android:paddingTop="20dp"
        android:text="@string/app_name"
        android:textColor="@android:color/black"
        android:textSize="17sp"
        android:textStyle="bold" />
</RelativeLayout>

Answer 1

在 DisplayImageOptions 中设置 .resetViewBeforeLoading()。