Android-在不压缩的情况下将位图图像保存在移动存储中 [英] Android - Save Bitmap Image on Mobile Storage without Compressing

问题描述

(基于研究)从远程URL保存位图图像的典型方式是:

The typical way (based on research) for saving bitmap images from a remote url is:

Bitmap bmImage = null;

InputStream in = new java.net.URL(imageUrl).openStream();
bmImage = BitmapFactory.decodeStream(in);

File file = new File(myPath);

FileOutputStream outputStream;
outputStream = new FileOutputStream(file);

bmImage.compress(Bitmap.CompressFormat.PNG, 100, outputStream);

outputStream.close();

除非将位图压缩，否则无法保存(位图始终未压缩). 远程映像大小为32KB，压缩后为110KB. 我知道我必须降低压缩参数才能减小尺寸，但是远程图像是经过优化的并且效率更高.

I cannot save bitmap unless it is compressed (Bitmap is always uncompressed). The remote image size is 32KB, after compression it gets 110KB. I know I have to lower compression parameter to get smaller size, but the remote image is optimize and much more efficient.

有没有一种方法可以将远程映像保存到移动存储中而不进行压缩?

Is there a way I can save the remote image on mobile storage without compressing it?

===== 回答我的问题 =====

===== ANSWER TO MY PROBLEM =====

首先，我对误导性内容深表歉意；我只想保存可能是png | jpeg | gif |等的图像.可能我误导了你们我要保存的图像是BMP格式，但是不是.

First I apologize for misleading content; all I wanted is to save images that could be png|jpeg|gif|etc.. Probably I mislead you guys that the image I am trying to save is in BMP format, but it is not.

尽管如此，对于那些想在不进行压缩的情况下保存图像的人，请查看此 answer

Nevertheless, for those who want to save images WITHOUT compressing, have a look to this answer

推荐答案

使用

Use AndroidBmpUtil as shown in the code below:

new AndroidBmpUtil().save(bmImage, file);

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