第一步 :导依赖
compile files('libs/universal-image-loader-1.9.3-with-sources.jar')
第二步:加载图片工具类
public class MyApplic extends Application{ @Override public void onCreate() { super.onCreate(); //初始化IamgeLoader //获取sd卡根目录路径 File files = new File("/sdcard/Rimg"); initImageLoader(getApplicationContext(),files); } public static void initImageLoader(Context context,File file) { ImageLoaderConfiguration.Builder config = new ImageLoaderConfiguration.Builder(context); config.threadPriority(Thread.NORM_PRIORITY - 2); config.denyCacheImageMultipleSizesInMemory(); config.diskCacheFileNameGenerator(new Md5FileNameGenerator()); config.diskCacheSize(50 * 1024 * 1024); // 50 MiB config.tasksProcessingOrder(QueueProcessingType.LIFO); config.writeDebugLogs(); // Remove for release app config .diskCacheFileCount(50);//配置sdcard缓存文件的数量 // Initialize ImageLoader with configuration. ImageLoader.getInstance().init(config.build()); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); } @Override public void onLowMemory() { super.onLowMemory(); } }
第三步:显示图片
DisplayImageOptions options = new DisplayImageOptions.Builder() .showImageOnLoading(R.mipmap.ic_launcher) //加载图片时的图片 .showImageForEmptyUri(R.mipmap.ic_launcher) //没有图片资源时的默认图片 .showImageOnFail(R.mipmap.ic_launcher) //加载失败时的图片 .cacheInMemory(true) //启用内存缓存 .cacheOnDisk(true) //启用外存缓存 .considerExifParams(true) //启用EXIF和JPEG图像格式 .displayer(new RoundedBitmapDisplayer(20)) //设置显示风格这里是圆角矩形 .build(); ImageLoader.getInstance().displayImage(list.get(i).getThumbnail_pic_s(),asd.img,options);