TLS 1.2 for Retrofit, Glide and Exoplayer // https://stackoverflow.com/q/61459509

commonClientBuilder.kt

/*
You'll find the extension `enableTls12()`:
- [Gist](https://gist.github.com/ankushg/8c0c3144318b1c17abb228d6211ba996) 
- [The related article](https://ankushg.com/posts/tls-1.2-on-android/)
*/

val clientBuilder by lazy {
    OkHttpClient.Builder()
        .readTimeout(15, TimeUnit.SECONDS)
        .connectTimeout(15, TimeUnit.SECONDS)
        .enableTls12()
}

CustomGlide.kt

/* Important:

You'll need to add these implentation in your gradle

implementation 'com.github.bumptech.glide:annotations:4.11.0'
implementation('com.github.bumptech.glide:okhttp3-integration:4.11.0'){
    exclude group: 'glide-parent'
}
*/

@GlideModule
class CustomGlideModule : AppGlideModule() {

    override fun registerComponents(context: Context, glide: Glide, registry: Registry) {
        registry.replace(
            GlideUrl::class.java,
            InputStream::class.java,
            OkHttpUrlLoader.Factory(clientBuilder.build())
        )
    }
}


// How to use your customGlideModule

GlideApp.with(this)
    .load(URL)
    .into(image)

Exoplayer.kt

/* Important:
You'll need to add this implentation in your gradle
implementation "com.google.android.exoplayer:extension-okhttp:2.11.4"
*/

val dataSourceFactory: DataSource.Factory = OkHttpDataSourceFactory(
    clientBuilder.build(),
    Util.getUserAgent(context, "RecyclerView VideoPlayer")
)

// then just use your dataSourceFactory with your mediaSource and play the video

val videoSource: MediaSource = ProgressiveMediaSource.Factory(dataSourceFactory)
                .createMediaSource(Uri.parse(mediaUrl))

Retrofit.kt

/* just use the clientBuilder we created before*/

val retrofit = Retrofit.Builder()
    .addConverterFactory(MoshiConverterFactory.create(moshi))
    .addCallAdapterFactory(CoroutineCallAdapterFactory())
    .client(clientBuilder.build())
    .baseUrl(BASE_URL)
    .build()