java - Android glide 在 Android 4.X 中不加载图片

Question

我使用 Glide v4.11 从网络加载图片，在 android 5.0 或更高版本中一切正常，但在 android 4.X 中图片无法加载。

这是我的代码:

 RequestOptions options = new RequestOptions()
                    .placeholder(android.R.drawable.progress_horizontal)
                    .error(android.R.drawable.presence_offline)
                    .diskCacheStrategy(DiskCacheStrategy.ALL);

   Glide.with(context)
                    .load(data.getImage_url())
                    .apply(options)
                    .into(holder.thumbnail);

这是 Android 4.4 上的 LogCat:

W/Glide: Load failed for https://www.gradientapi.xyz/generate/w/1000/h/500 with size [188x263]
    class com.bumptech.glide.load.engine.GlideException: Failed to load resource
    There was 1 cause:
    javax.net.ssl.SSLHandshakeException(javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0xb85422a0: Failure in SSL library, usually a protocol error
    error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol (external/openssl/ssl/s23_clnt.c:766 0xa744e990:0x00000000))
     call GlideException#logRootCauses(String) for more detail
      Cause (1 of 1): class com.bumptech.glide.load.engine.GlideException: Fetching data failed, class java.io.InputStream, REMOTE
    There was 1 cause:
    javax.net.ssl.SSLHandshakeException(javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0xb85422a0: Failure in SSL library, usually a protocol error
    error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol (external/openssl/ssl/s23_clnt.c:766 0xa744e990:0x00000000))
     call GlideException#logRootCauses(String) for more detail
        Cause (1 of 1): class com.bumptech.glide.load.engine.GlideException: Fetch failed
    There was 1 cause:
    javax.net.ssl.SSLHandshakeException(javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0xb85422a0: Failure in SSL library, usually a protocol error
    error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol (external/openssl/ssl/s23_clnt.c:766 0xa744e990:0x00000000))
     call GlideException#logRootCauses(String) for more detail
          Cause (1 of 1): class javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0xb85422a0: Failure in SSL library, usually a protocol error
    error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol (external/openssl/ssl/s23_clnt.c:766 0xa744e990:0x00000000)

我在网上搜索了一下，发现Android 4.4仅支持TLS 1.0。

这可能是问题所在？如果是的话有什么解决方案吗？

Answer 1

这是一个握手异常。在早于 Android 5.0 的设备上，默认情况下不启用 TLSv1.1 和 TLSv1.2 协议(protocol)，这就是发生此异常的原因。

您可以在应用程序类的 onCreate 方法中尝试此操作:

if (Build.VERSION.SDK_INT == 19) {
        try {
            ProviderInstaller.installIfNeeded(this);
        } catch (Exception ignored) {
        }
    }

此外，您可以查看this github issue以获得更好的解决方案。