ImageLoader加载本地图片

import android.widget.ImageView;

import com.nostra13.universalimageloader.core.ImageLoader;

/**

• 异步加载本地图片工具类
• @author tony

*/
public class LoadLocalImageUtil {
private LoadLocalImageUtil() {
}

private static LoadLocalImageUtil instance = null;


public static synchronized LoadLocalImageUtil getInstance() {
    if (instance == null) {
        instance = new LoadLocalImageUtil();
    }
    return instance;
}


/**
 * 从内存卡中异步加载本地图片
 * 
 * @param uri
 * @param imageView
 */
public void displayFromSDCard(String uri, ImageView imageView) {
    // String imageUri = "file:///mnt/sdcard/image.png"; // from SD card
    ImageLoader.getInstance().displayImage("file://" + uri, imageView);
}


/**
 * 从assets文件夹中异步加载图片
 * 
 * @param imageName
 *            图片名称，带后缀的，例如：1.png
 * @param imageView
 */
public void dispalyFromAssets(String imageName, ImageView imageView) {
    // String imageUri = "assets://image.png"; // from assets
    ImageLoader.getInstance().displayImage("assets://" + imageName,
            imageView);
}


/**
 * 从drawable中异步加载本地图片
 * 
 * @param imageId
 * @param imageView
 */
public void displayFromDrawable(int imageId, ImageView imageView) {
    // String imageUri = "drawable://" + R.drawable.image; // from drawables
    // (only images, non-9patch)
    ImageLoader.getInstance().displayImage("drawable://" + imageId,
            imageView);
}


/**
 * 从内容提提供者中抓取图片
 */
public void displayFromContent(String uri, ImageView imageView) {
    // String imageUri = "content://media/external/audio/albumart/13"; //
    // from content provider
    ImageLoader.getInstance().displayImage("content://" + uri, imageView);
}