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Updated on 2026-08-14

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Tangem 2024-07-09 22:39:27 +04:00
parent 40af5f555b
commit 8fbfee735b
5 changed files with 73 additions and 19 deletions
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23
data/card/src/main/java/com/tangem/data/card/di/CardSdkModule.kt
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@ -1,23 +0,0 @@
package com.tangem.data.card.di
import com.tangem.data.card.sdk.CardSdkOwner
import com.tangem.data.card.sdk.CardSdkProvider
import com.tangem.data.card.sdk.DefaultCardSdkProvider
import dagger.Binds
import dagger.Module
import dagger.hilt.InstallIn
import dagger.hilt.components.SingletonComponent
import javax.inject.Singleton
@Module
@InstallIn(SingletonComponent::class)
internal interface CardSdkModule {
@Binds
@Singleton
fun provideCardSdkProvider(defaultCardSdkProvider: DefaultCardSdkProvider): CardSdkProvider
@Binds
@Singleton
fun providerCardSdkLifecycleObserver(defaultCardSdkProvider: DefaultCardSdkProvider): CardSdkOwner
}

2
data/card/src/main/java/com/tangem/data/card/sdk/CardSdkProvider.kt
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@ -7,7 +7,7 @@ import com.tangem.TangemSdk
*
[REDACTED_AUTHOR]
*/
internal interface CardSdkProvider {
interface CardSdkProvider {
/** CardSDK instance */
val sdk: TangemSdk

123
data/card/src/main/java/com/tangem/data/card/sdk/DefaultCardSdkProvider.kt
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@ -1,123 +0,0 @@
package com.tangem.data.card.sdk
import androidx.fragment.app.FragmentActivity
import androidx.lifecycle.DefaultLifecycleObserver
import androidx.lifecycle.LifecycleObserver
import androidx.lifecycle.LifecycleOwner
import com.tangem.Log
import com.tangem.TangemSdk
import com.tangem.common.CardFilter
import com.tangem.common.authentication.AuthenticationManager
import com.tangem.common.card.FirmwareVersion
import com.tangem.common.core.Config
import com.tangem.common.services.secure.SecureStorage
import com.tangem.crypto.bip39.Wordlist
import com.tangem.sdk.DefaultSessionViewDelegate
import com.tangem.sdk.extensions.*
import com.tangem.sdk.nfc.NfcManager
import com.tangem.sdk.storage.create
import javax.inject.Inject
import javax.inject.Singleton
/**
* Implementation of CardSDK instance provider
*
[REDACTED_AUTHOR]
*/
@Singleton
internal class DefaultCardSdkProvider @Inject constructor() : CardSdkProvider, CardSdkOwner {
override val sdk: TangemSdk
get() = requireNotNull(value = holder?.sdk) {
"Impossible to get the TangemSdk when activity is destroyed"
}
private val observer: LifecycleObserver = Observer()
private var holder: Holder? = null
override fun register(activity: FragmentActivity) {
Log.info { "Tangem SDK owner registered" }
if (holder != null) {
unsubscribeAndCleanup()
}
initialize(activity)
activity.lifecycle.addObserver(observer)
}
private fun initialize(activity: FragmentActivity) {
val secureStorage = SecureStorage.create(activity)
val nfcManager = TangemSdk.initNfcManager(activity)
val authenticationManager = TangemSdk.initAuthenticationManager(activity)
val keystoreManager = TangemSdk.initKeystoreManager(authenticationManager, secureStorage)
val viewDelegate = DefaultSessionViewDelegate(nfcManager, activity)
viewDelegate.sdkConfig = config
val sdk = TangemSdk(
reader = nfcManager.reader,
viewDelegate = viewDelegate,
secureStorage = secureStorage,
authenticationManager = authenticationManager,
keystoreManager = keystoreManager,
wordlist = Wordlist.getWordlist(activity),
config = config,
)
holder = Holder(
activity = activity,
nfcManager = nfcManager,
authenticationManager = authenticationManager,
sdk = sdk,
)
Log.info { "Tangem SDK initialized" }
}
private fun unsubscribeAndCleanup() {
with(receiver = holder ?: return) {
nfcManager.unsubscribe(activity)
authenticationManager.unsubscribe(activity)
activity.lifecycle.removeObserver(observer)
}
holder = null
Log.info { "Tangem SDK unsubscribed and cleaned up" }
}
inner class Observer : DefaultLifecycleObserver {
override fun onDestroy(owner: LifecycleOwner) {
Log.info { "Tangem SDK owner destroyed" }
unsubscribeAndCleanup()
}
}
data class Holder(
val activity: FragmentActivity,
val sdk: TangemSdk,
val nfcManager: NfcManager,
val authenticationManager: AuthenticationManager,
)
private companion object {
val config = Config(
linkedTerminal = true,
allowUntrustedCards = true,
filter = CardFilter(
allowedCardTypes = FirmwareVersion.FirmwareType.entries.toList(),
maxFirmwareVersion = FirmwareVersion(major = 6, minor = 33),
batchIdFilter = CardFilter.Companion.ItemFilter.Deny(
items = setOf("0027", "0030", "0031", "0035"),
),
),
)
}
}