只在開發時使用 Stetho 的相關配置

http://stackoverflow.com/questions/30172308/include-stetho-only-in-the-debug-build-variant

http://littlerobots.nl/blog/stetho-for-android-debug-builds-only/

build.gradle

  debugCompile 'com.facebook.stetho:stetho:1.4.1'
  debugCompile 'com.facebook.stetho:stetho-okhttp3:1.4.1'

debug/java

public class DebugApplication extends App {
    @Override
    public void onCreate() {
        super.onCreate();
        Stetho.initializeWithDefaults(this);
    }
}

debug/manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest package="demo"
          xmlns:tools="http://schemas.android.com/tools"
          xmlns:android="http://schemas.android.com/apk/res/android">


    <application
        tools:replace="android:name"
        android:name=".DebugApplication">

    </application>

</manifest>

debug/java/OkHttpUtils

public class OkHttpUtils {
    public static OkHttpClient get() {
        return new OkHttpClient.Builder()
                .addNetworkInterceptor(new StethoInterceptor())
                .build();
    }
}

release/java/OkHttpUtils

public class OkHttpUtils {
    public static OkHttpClient get() {
        return new OkHttpClient.Builder()
                .build();
    }
}