1. Add an Emulator named `pixel5`, if you don't already have one

```
$ sdkmanager --install "system-images;android-29;google_apis;x86"
$ echo "no" | avdmanager --verbose create avd --force --name "pixel5" --device "pixel" --package "system-images;android-29;google_apis;x86" --tag "google_apis" --abi "x86"
```

2. Run an Emulator using Android Studio or from command line.

```
$ emulator -no-window -no-snapshot-load @pixel5

#### Blocking APIs

Blocking APIs are convenient because you get top-to-bottom procedural code without indirection. Network calls work like regular method calls: ask for data and it is returned. If the request fails, you get a stacktrace right where the call was made.

import okhttp3.internal.http.RecordingProxySelector
import okhttp3.tls.HandshakeCertificates
import okhttp3.tls.internal.TlsUtil.localhost

/**
 * OkHttp is usually tested with functional tests: these use public APIs to confirm behavior against
 * MockWebServer. In cases where logic is particularly tricky, we use unit tests. This class makes
 * it easy to get sample values to use in such tests.
 *

  /** True if the agreed upon extensions includes the permessage-deflate extension. */
  @JvmField val perMessageDeflate: Boolean = false,
  /** Should be a value in [8..15]. Only 15 is acceptable by OkHttp as Java APIs are limited. */
  @JvmField val clientMaxWindowBits: Int? = null,
  /** True if the agreed upon extension parameters includes "client_no_context_takeover". */
  @JvmField val clientNoContextTakeover: Boolean = false,

OkHttp 1.x Change Log
=====================

## Version 1.6.0

_2014-05-23_

 * Offer bridges to make it easier to migrate from OkHttp 1.x to OkHttp 2.0.
   This adds `OkUrlFactory`, `Cache`, and `@Deprecated` annotations for APIs
   dropped in 2.0.

## Version 1.5.4

_2014-04-14_

 * Drop ALPN support in Android. There's a concurrency bug in all
   currently-shipping versions.

OkHttp Android
==============

Enhanced APIs for using OkHttp on Android.

At the moment, this will mostly likely only be useful for fastFallback.

Download
--------

```kotlin
implementation("com.squareup.okhttp3:okhttp-android:4.12.0")

- Favour a working external library if appropriate.  There are many examples of OkHttp libraries that can sit on top or hook in via existing APIs.
- Get working code on a personal branch with tests before you submit a PR.
- OkHttp is a small and light dependency.  Don't introduce new dependencies or major new functionality.

    toolVersion = rootProject.libs.versions.checkStyle.get()
    sourceSets = listOf(project.sourceSets["main"])
  }

  // Animal Sniffer confirms we generally don't use APIs not on Java 8.
  configure<AnimalSnifferExtension> {
    annotation = "okhttp3.internal.SuppressSignatureCheck"
    sourceSets = listOf(project.sourceSets["main"])
  }

Debug Logging
=============

OkHttp has internal APIs to enable debug logging. It uses the `java.util.logging` API which can be
tricky to configure. As a shortcut, you can paste [OkHttpDebugLogging.kt]. Then enable debug logging
for whichever features you need:

```
OkHttpDebugLogging.enableHttp2()
OkHttpDebugLogging.enableTaskRunner()
```

### Activating on Android

```
$ adb shell setprop log.tag.okhttp.Http2 DEBUG

import javax.net.ssl.SSLPeerUnverifiedException
import javax.net.ssl.X509TrustManager
import okhttp3.internal.platform.Platform

/**
 * Computes the effective certificate chain from the raw array returned by Java's built in TLS APIs.
 * Cleaning a chain returns a list of certificates where the first element is `chain[0]`, each
 * certificate is signed by the certificate that follows, and the last certificate is a trusted CA
 * certificate.
 *