Android项目之本地图片加载

protected void runOnBackground(AsyncResult<Bitmap> asyncResult) {
if (isCancel.get()) {
return;
}

File file = new File(imageLoadOptions.getFilePath());
if (file.exists()) {
// 文件存在，开始加载
int width = imageLoadOptions.getImageLoadSize().getWidth();
int height = imageLoadOptions.getImageLoadSize().getHeight();

Bitmap bitmap;
if (width > 0 || height > 0) {
bitmap = BitmapUtils.decodeFile(file.getAbsolutePath(), width, height);
if (isCancel.get()) {
return;
}
if (bitmap != null) {
try {
ImageLoadSize imageLoadSize = imageLoadOptions.getImageLoadSize();
bitmap = BitmapUtils.scaleBitmap(bitmap, width, height, imageLoadSize.getImageScaleType());
} catch (Exception e) {
e.printStackTrace();
bitmap = null;
}
}
} else {
bitmap = BitmapUtils.decodeFile(imageLoadOptions.getFilePath());
}
if (bitmap == null) {
asyncResult.setResult(OnLoadResultListener.RESULT_LOAD_FAILED);
} else {
asyncResult.setResult(OnLoadResultListener.RESULT_LOAD_SUCCESSFUL);
asyncResult.setData(bitmap);
}
} else {
// 文件不存在
asyncResult.setResult(OnLoadResultListener.RESULT_FILE_NOT_EXISTS);
}
}

protected void runOnUIThread(AsyncResult<Bitmap> asyncResult) {
if (!isCancel.get()) {
onLoadResultListener.onLoadResult(asyncResult.getResult(), asyncResult.getData());
}
}