/**
* 从文件中拿图片
*
* @return
*/
private static Bitmap getBitmapFromFile(Context con, String url, boolean blean) {
String imageName = "";
if (!url.startsWith("http")) {
imageName = url.substring(url.lastIndexOf("/") + 1);
} else {
imageName = Utils.getMD5Str(url);
}
if (url.contains("ba57b8e1463b63cb01463b7a18eb0083")) {
MyLogger.commLog().e(imageName);
}
Bitmap bitmap = null;
File file = null;
String cacheDir = Utils.getCacheDir(con, "picture");
if (imageName != null) {
try {
file = new File(cacheDir, imageName);
if (file.exists()) {
// DisplayMetrics dm = context.getResources().getDisplayMetrics();
// int hh = dm.heightPixels;// 这里设置高度为800f
// int ww = dm.widthPixels;// 这里设置宽度为480f
bitmap = decodeSampledBitmapFromFile(cacheDir + "/" + imageName, 100, 100);
}
} catch (Exception e) {
e.printStackTrace();
bitmap = null;
}
}
if (bitmap != null) {
addBitmapToMemoryCache(url, bitmap);
MyLogger.commLog().d(url);
}
return bitmap;
}
public ImageDownloader(Context context) {
super();
ImageDownloader.context = context;
cacheDirPath_ = Utils.getCacheDir(context, cacheDirName);
if (!TextUtils.isEmpty(cacheDirPath_)) {
File cachedir = new File(cacheDirPath_);
if (!cachedir.exists()) {
cachedir.mkdirs();
}
}
if (mMemoryCache == null) {
createLruCache();
}
}
/** 将下载好的图片存放到文件中 */
private void setBitmapToFile(String imageName, InputStream is) {
File file = null;
FileOutputStream fos = null;
try {
file = new File(cacheDirPath_, imageName);
if (!file.exists()) {
File file2 = new File(cacheDirPath_);
file2.mkdirs();
}
if (Utils.hasSDCard()) {
fos = new FileOutputStream(file);
} else {
fos = context.openFileOutput(cacheDirName + "/" + imageName, Context.MODE_PRIVATE);
}
int len = -1;
byte[] buffer = new byte[1024];
while ((len = is.read(buffer)) != -1) {
fos.write(buffer, 0, len);
fos.flush();
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (is != null) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
Bitmap bitmap = decodeSampledBitmapFromFile(file.getAbsolutePath(), 100, 100);
if (null != bitmap) {
Bitmap compressBitmap = BitmapUtil.compressImage(bitmap);
String cachePath = Utils.getCacheDir(context, "picture");
setBitmapToFile(cachePath, imageName, compressBitmap);
}
}
}
