是否在Android4.x上修复ssl握手错误，SSL库协议错误

Question

我正在开发android本机woocomerce应用程序，我所面临的问题是，当我在Android4.x版本上构建和生成apk并运行时，它不会从api中获取数据，只是显示了协议引起的一个SSL错误：附在下面的 在这里输入图像描述版本4.xi.e 5之上，或者在工作中很好地获取所有数据。

我试过TLS转换，但没有完全成功。

package com.app.androidwoocommerce.network;


import com.app.androidwoocommerce.constant.ConstantValues;
import com.app.androidwoocommerce.oauth.BasicOAuth;
import com.app.androidwoocommerce.oauth.OAuthInterceptor;

import java.util.concurrent.TimeUnit;

import okhttp3.OkHttpClient;
import okhttp3.logging.HttpLoggingInterceptor;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;


/**
 * APIClient handles all the Network API Requests using Retrofit Library
 **/

public class APIClient {

    public static Retrofit retrofit;
    private static APIRequests apiRequests;
    private static final String BASE_URL = ConstantValues.WOOCOMMERCE_URL;


    // Singleton Instance of APIRequests
    public static APIRequests getInstance() {
        if (apiRequests == null) {

            HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
            interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);

            OAuthInterceptor oauth1Woocommerce = new OAuthInterceptor.Builder()
                    .consumerKey(ConstantValues.WOOCOMMERCE_CONSUMER_KEY)
                    .consumerSecret(ConstantValues.WOOCOMMERCE_CONSUMER_SECRET)
                    .build();

            BasicOAuth basicOAuthWoocommerce = new BasicOAuth.Builder()
                    .consumerKey(ConstantValues.WOOCOMMERCE_CONSUMER_KEY)
                    .consumerSecret(ConstantValues.WOOCOMMERCE_CONSUMER_SECRET)
                    .build();

            OkHttpClient okHttpClient = new OkHttpClient.Builder()
                    .addInterceptor(interceptor)
                    .connectTimeout(30, TimeUnit.SECONDS)
                    .readTimeout(30, TimeUnit.SECONDS)
                    .writeTimeout(30, TimeUnit.SECONDS)
                    .addInterceptor(BASE_URL.startsWith("http://")?  oauth1Woocommerce : basicOAuthWoocommerce)
                    .build();
           /* OkHttpClient okHttpClient = new OkHttpClient().newBuilder()
                    .connectTimeout(30, TimeUnit.SECONDS)
                    .readTimeout(30, TimeUnit.SECONDS)
                    .writeTimeout(30, TimeUnit.SECONDS)
                    .addInterceptor(BASE_URL.startsWith("http://")?  oauth1Woocommerce : basicOAuthWoocommerce)
                    .addInterceptor(interceptor)
                    .build();*/


            retrofit = new Retrofit.Builder()
                    .baseUrl(BASE_URL)
                    .client(okHttpClient)
                    .addConverterFactory(GsonConverterFactory.create())
                    .build();


            apiRequests = retrofit.create(APIRequests.class);

            return apiRequests;

        }
        else {
            return apiRequests;
        }
    }

}

我希望API连接到设备4.x，在其他版本中也是如此，min已经被检查过了，它有某种ssl或tls问题，我认为

Answer 1

代码不是由我编写的，但是我在我的项目中得到了它，我可以确认它是有效的。

fun Context.installTls12() {
    // important code starts here
    try {
        ProviderInstaller.installIfNeeded(this)
    } catch (e: GooglePlayServicesRepairableException) {
        // Prompt the user to install/update/enable Google Play services.
        GoogleApiAvailability.getInstance().showErrorNotification(this, e.connectionStatusCode)
    } catch (e: GooglePlayServicesNotAvailableException) {
        // Indicates a non-recoverable error: let the user know.
    }
}

Java版本应该看起来非常类似。早点打电话。Kotlin扩展并不是必需的，但是它非常有用。