最好的方法从URL在Android的下载图像 [英] Best method to download image from url in Android

问题描述

我用下面的方法来下载网址的单个图像

I'm using below method to download single image from url

public static Bitmap getBitmap(String url) {
    try {
        InputStream is = (InputStream) new URL(url).getContent();
        Bitmap d = BitmapFactory.decodeStream(is);
        is.close();
        return d;
    } catch (Exception e) {
        return null;
    }
}

有时候，我得到一个内存不足的异常。

Sometimes I get an outofmemory exception.

我无法赶上内存不足的异常。该应用程序将关闭。如何prevent呢？

I am unable to catch outofmemory exception. The app will close. How to prevent this?

是否有下载图像更好的方法也比较快？

Is there a better method for downloading images that is also faster?

推荐答案

我用这个库，它是真正伟大的，当你必须处理大量的图像。它下载他们异步，缓存它们等。

I use this library, it's really great when you have to deal with lots of images. It downloads them asynchronously, caches them etc.

对于OOM异常，使用<一个href="https://$c$c.google.com/p/android-source-browsing/source/browse/samples/training/bitmapfun/src/com/example/android/bitmapfun/util/RecyclingBitmapDrawable.java?spec=svn.platform--development.4d6574e878e2af2f19b46b28b28748ba2786e05a&repo=platform--development&r=4d6574e878e2af2f19b46b28b28748ba2786e05a">this和<一href="https://$c$c.google.com/p/android-source-browsing/source/browse/samples/training/bitmapfun/src/com/example/android/bitmapfun/ui/RecyclingImageView.java?spec=svn.platform--development.4d6574e878e2af2f19b46b28b28748ba2786e05a&repo=platform--development&r=4d6574e878e2af2f19b46b28b28748ba2786e05a">this一流的大幅减少它们对我来说。

As for the OOM exceptions, using this and this class drastically reduced them for me.

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