/**
* get one image from three places, imageMemoryCache,imageFileCache,network
*
* @param url The URL of the image to download.
* @return Bitmap return a bitmap
*/
private Bitmap getBitmap(final String url) {
if (null == url || "".equals(url)) {
return null;
}
// get image from mLruMemoryCache
Bitmap result = null;
result = mLruMemoryCache.get(url);
if (result == null) {
// get image from imageFileCache
result = imageFileCache.getImage(url);
if (result == null) {
// get image from network
// result = getImageHttp(url);
result = getImageFromHttp(url);
if (result != null) {
if (mLruMemoryCache.get(url) == null) {
mLruMemoryCache.put(url, result);
}
imageFileCache.addImgToSDTask(url, result);
}
} else {
if (mLruMemoryCache.get(url) == null) {
mLruMemoryCache.put(url, result);
}
}
}
return result;
}
public Bitmap getBitmap(String url) {
// 从内存缓存中获取图片
Bitmap result = memoryCache.getBitmapFromCache(url);
if (result == null) {
// 文件缓存中获取
result = fileCache.getImage(url);
if (result == null) {
// 从网络获取
result = getBitmapFromWeb(url);
if (result != null) {
fileCache.saveBitmap(result, url);
memoryCache.addBitmapToCache(url, result);
System.out.println("图片从网络中获取");
}
} else {
// 添加到内存缓存
memoryCache.addBitmapToCache(url, result);
System.out.println("图片从文件缓存中获取");
}
} else {
System.out.println("图片从内存缓存中获取");
}
return result;
} // end getBitmap
public Bitmap getBitmapCut(String path, int w, int h, boolean isUpload, String extensions) {
String filename = FileUtil.convertUrlToFileName(path);
Bitmap result = memoryCache.getBitmapFromCache(filename);
if (result == null && fileCache != null) {
result = fileCache.getImageFile(path, w, h, isUpload, extensions);
if (result != null) {
memoryCache.addBitmapToCache(filename, result);
}
}
return result;
}
public void setCacheDir(String cacheDir) {
if (cacheDir != null && cacheDir.length() > 0 && fileCache == null) {
fileCache = new ImageFileCache();
fileCache.setCacheDir(cacheDir);
try {
File dirFile = new File(cacheDir);
if (!dirFile.exists()) dirFile.mkdirs();
} catch (Exception ex) {
}
}
}
public Bitmap getBitmap(String url) {
String filename = FileUtil.convertUrlToFileName(url);
boolean isDownload = true;
if (url.startsWith("http") || url.toLowerCase().startsWith("http")) {
url = filename;
} else {
isDownload = false;
}
Bitmap result = memoryCache.getBitmapFromCache(filename);
if (result == null && fileCache != null) {
result = fileCache.getImage(url, isDownload);
if (result != null) {
memoryCache.addBitmapToCache(filename, result);
}
}
return result;
}
public void save(Bitmap img, String path, String extensions) {
fileCache.saveBitmap(img, path, extensions);
}
public String getCacheUploadPath(String filename) {
if (fileCache == null) {
return null;
}
return fileCache.getCacheUploadPath(filename);
}
public void deleteAllImages() {
imageFileCache.deleteAll();
}
/** delete the image files from sd */
public void deleteImagesOfSd() {
imageFileCache.deleteAll();
}