Android：从 URL 获取 Drawable 不适用于 .jpg，仅适用于 .png

发布于 2024-10-06 18:12:21 字数 475 浏览 4 评论 0原文

我正在开发一个 Android 应用程序，它可以从互联网页面（特别是 xckd.com）中提取图片。我使用这种基本形式的代码可以很好地工作（见下文），

ImageView iv = new ImageView;
    URL url = new URL(address);
    InputStream content = (InputStream)url.getContent();
    Drawable d = Drawable.createFromStream(content , "src"); 
    iv.setImageDrawable(d)

我注意到当我查看他们的一些旧漫画时，图像不会显示（但我正确地从页面中抓取了其他信息，所以我知道网址是正确的）。我确定只有当图像是 .jpg 文件时才会出现此结果，但当图像是 .png 文件时效果很好。

我在 Google 上搜索了很多，但我不明白为什么会这样，有一个简单的修复方法吗？

原文

I am working on and Android app that pulls a picture from an internet page (specifically xckd.com). I have it working wonderfully using code of this basic form (see below)

ImageView iv = new ImageView;
    URL url = new URL(address);
    InputStream content = (InputStream)url.getContent();
    Drawable d = Drawable.createFromStream(content , "src"); 
    iv.setImageDrawable(d)

I noticed when I was viewing some of their older comics the image would not show (but I was scraping the other information from the page properly so I know the url is correct). I determined that this result only occurs when the image is a .jpg file but works perfectly when it is a .png

I have Googled around plenty and I can't figure out why this is, is there a simple fix for this?

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