I am having a lot of UnknownHostException thrown and the app is disconnected from the internet completely, this issue is happening in multiple apps I am working on the issue happens on Samsung and Xiaomi devices mainly
this issue happens when the user leave the app in the background for a long time for example 12 hours and the user get access to the internet back only when the user restarts the app, I think these devices is clearing something form memory which is introducing this issue.
Non-fatal Exception: java.net.UnknownHostException: Unable to resolve host "ec2-157-175-229-147.me-south-1.compute.amazonaws.com": No address associated with hostname
at java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:124)
at java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:103)
at java.net.InetAddress.getAllByName(InetAddress.java:1152)
at okhttp3.Dns$Companion$DnsSystem.lookup(Dns.kt:49)
at okhttp3.internal.connection.RouteSelector.resetNextInetSocketAddress(RouteSelector.kt:164)
at okhttp3.internal.connection.RouteSelector.nextProxy(RouteSelector.kt:129)
at okhttp3.internal.connection.RouteSelector.next(RouteSelector.kt:71)
at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.kt:205)
at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.kt:106)
at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.kt:74)
at okhttp3.internal.connection.RealCall.initExchange$okhttp(RealCall.kt:255)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:32)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:95)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:83)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:76)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at zerobranch.androidremotedebugger.logging.NetLoggingInterceptor.intercept(NetLoggingInterceptor.java:144)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at com.pluto.plugins.network.PlutoInterceptor.intercept(PlutoInterceptor.kt:42)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at okhttp3.logging.HttpLoggingInterceptor.intercept(HttpLoggingInterceptor.kt:221)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at com.manexcard.manexpress.core.di.network_module.NetworkModule.provideAuthInterceptor$lambda-3(NetworkModule.kt:58)
at com.manexcard.manexpress.core.di.network_module.NetworkModule.$r8$lambda$vr0s-sfISppz0jbkHEnesHFTcFo()
at com.manexcard.manexpress.core.di.network_module.NetworkModule$$ExternalSyntheticLambda1.intercept()
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.kt:201)
at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.kt:517)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1137)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:637)
at java.lang.Thread.run(Thread.java:1012)
I am using Hilt to provide the dependencies and I am creating them as Singletons here is the dagger module:
@Module
@InstallIn(SingletonComponent::class)
object NetworkModule {
@Singleton
@Provides
fun provideManexPressService(retrofit: Retrofit): ManexPressService =
retrofit.create(ManexPressService::class.java)
@Singleton
@Provides
fun provideGson(): Gson = Gson()
@Provides /* provide gson converter */
fun provideConverterFactory(gson: Gson): Converter.Factory {
return GsonConverterFactory.create(gson)
}
@Provides
@Named("AuthInterceptor")
fun provideAuthInterceptor(): Interceptor =
Interceptor { chain ->
val newBuilder = chain.request().newBuilder()
if (chain.request().headers.none { it.first == "Authorization" }) {
TokensManager.requestJwt?.let {
newBuilder.addHeader("Authorization", "Bearer $it")
}
}
newBuilder.build().let { chain.proceed(it) }
}
@Provides
fun providesNetLoggingInterceptor() = NetLoggingInterceptor()
@Provides
@Named("LoggingInterceptor")
@Singleton
fun httpLoggingInterceptor(): Interceptor {
return if (BuildConfig.DEBUG)
HttpLoggingInterceptor { message ->
Timber.tag("OkHttp").d(message)
}.setLevel(HttpLoggingInterceptor.Level.BODY)
else
return LiveOkhttpLoggingInterceptor { message ->
Timber.tag("OkHttp").d(message)
}.setLevel(HttpLoggingInterceptor.Level.BODY)
}
@Singleton
@Provides
fun client(
@Named("AuthInterceptor")
authInterceptor: Interceptor,
@Named("LoggingInterceptor")
loggingInterceptor: Interceptor,
netLoggingInterceptor: NetLoggingInterceptor
): OkHttpClient = OkHttpClient().newBuilder().run {
addInterceptor(authInterceptor)
addInterceptor(loggingInterceptor)
addInterceptor(PlutoInterceptor())
addInterceptor(netLoggingInterceptor)
connectTimeout(2, TimeUnit.MINUTES)
readTimeout(2, TimeUnit.MINUTES)
build()
}
/* operation work of api using retrofit */
@Singleton
@Provides
fun provideRetrofit(
@ApplicationContext context: Context,
okHttpClient: OkHttpClient,
converterFactory: Converter.Factory
): Retrofit = Retrofit.Builder()
.baseUrl(context.getString(R.string.base_url))
.addConverterFactory(converterFactory)
.client(okHttpClient)
.build()
}
I have researched a lot but I cannot find any valid solution I have implemented a workaround it seems to be working for now I have moved the network implementation to ActivityRetainedComponent and I am restarting the activity if it remains in the background for longer than 10 minutes. I know it is not the best practice but this is my only option for now I open for any suggestions.
Finally here are all my related dependencies:
// Retrofit
implementation 'com.squareup.retrofit2:retrofit:2.9.0'
implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
implementation 'com.squareup.okhttp3:okhttp:4.10.0'
implementation 'com.squareup.okhttp3:logging-interceptor:4.9.2'
// hilt implementation.
implementation 'com.google.dagger:hilt-android:2.43.1'
kapt 'com.google.dagger:hilt-android-compiler:2.43.1'
kapt "androidx.hilt:hilt-compiler:1.0.0"
implementation 'androidx.hilt:hilt-navigation-fragment:1.0.0'