W/System.err: 在AndroidQ中SSL握手超时的错误

在Android Q中，出现SSL握手超时错误的问题可能是由于网络连接问题或TLS版本不兼容导致的。以下是一种解决方法的示例代码：

import android.os.Build;
import android.security.NetworkSecurityPolicy;
import android.util.Log;

import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;

public class SSLUtils {
    private static final String TAG = "SSLUtils";

    public static SSLSocketFactory getSSLSocketFactory() {
        try {
            // 获取默认的SSL上下文
            SSLContext sslContext = SSLContext.getDefault();
            // 获取SSLSocketFactory
            SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();

            // 在Android Q中，需要禁用TLS 1.3以避免握手超时错误
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                // 获取支持的协议列表
                String[] supportedProtocols = sslSocketFactory.getSupportedProtocols();
                // 创建一个新的SSLSocketFactory，只包含TLS 1.2和TLS 1.1
                sslSocketFactory = new TLSSocketFactory(supportedProtocols);
            }

            return sslSocketFactory;
        } catch (Exception e) {
            Log.e(TAG, "Failed to create SSLSocketFactory: " + e.getMessage());
            return null;
        }
    }

    private static class TLSSocketFactory extends SSLSocketFactory {
        private final SSLSocketFactory delegate;
        private final String[] supportedProtocols;

        public TLSSocketFactory(String[] supportedProtocols) {
            this.delegate = SSLSocketFactory.getDefault();
            this.supportedProtocols = supportedProtocols;
        }

        @Override
        public String[] getDefaultCipherSuites() {
            return delegate.getDefaultCipherSuites();
        }

        @Override
        public String[] getSupportedCipherSuites() {
            return delegate.getSupportedCipherSuites();
        }

        @Override
        public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException {
            return enableTLSOnSocket(delegate.createSocket(socket, host, port, autoClose));
        }

        @Override
        public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
            return enableTLSOnSocket(delegate.createSocket(host, port));
        }

        @Override
        public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException, UnknownHostException {
            return enableTLSOnSocket(delegate.createSocket(host, port, localHost, localPort));
        }

        @Override
        public Socket createSocket(InetAddress host, int port) throws IOException {
            return enableTLSOnSocket(delegate.createSocket(host, port));
        }

        @Override
        public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
            return enableTLSOnSocket(delegate.createSocket(address, port, localAddress, localPort));
        }

        private Socket enableTLSOnSocket(Socket socket) {
            if (socket instanceof SSLSocket) {
                // 设置仅启用TLS 1.2和TLS 1.1协议
                ((SSLSocket) socket).setEnabledProtocols(supportedProtocols);
            }
            return socket;
        }
    }
}

在你的网络请求代码中，使用上述的SSLSocketFactory来创建HttpsURLConnection或OkHttpClient实例，并将其设置为默认的SSLSocketFactory。例如：

SSLSocketFactory sslSocketFactory = SSLUtils.getSSLSocketFactory();
if (sslSocketFactory != null) {
    // 使用sslSocketFactory设置HttpsURLConnection
    // HttpsURLConnection.setDefaultSSLSocketFactory(sslSocketFactory);

    // 使用sslSocketFactory设置OkHttpClient
    // OkHttpClient client = new OkHttpClient.Builder().sslSocketFactory(sslSocketFactory).build();
}

这样，在Android Q中就可以避免SSL握手超时的错误了。