127 lines
4.8 KiB
Kotlin
127 lines
4.8 KiB
Kotlin
package cash.z.ecc.android.sdk.demoapp.demos.getaddress
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import android.os.Bundle
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import android.view.LayoutInflater
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import androidx.lifecycle.lifecycleScope
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import cash.z.ecc.android.bip39.Mnemonics
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import cash.z.ecc.android.bip39.toSeed
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import cash.z.ecc.android.sdk.Synchronizer
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import cash.z.ecc.android.sdk.demoapp.BaseDemoFragment
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import cash.z.ecc.android.sdk.demoapp.databinding.FragmentGetAddressBinding
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import cash.z.ecc.android.sdk.demoapp.ext.requireApplicationContext
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import cash.z.ecc.android.sdk.demoapp.util.ProvideAddressBenchmarkTrace
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import cash.z.ecc.android.sdk.demoapp.util.fromResources
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import cash.z.ecc.android.sdk.model.LightWalletEndpoint
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import cash.z.ecc.android.sdk.model.ZcashNetwork
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import cash.z.ecc.android.sdk.model.defaultForNetwork
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import cash.z.ecc.android.sdk.tool.DerivationTool
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import cash.z.ecc.android.sdk.type.UnifiedFullViewingKey
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import kotlinx.coroutines.launch
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import kotlinx.coroutines.runBlocking
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/**
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* Displays the address associated with the seed defined by the default config. To modify the seed
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* that is used, update the `DemoConfig.seedWords` value.
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*/
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class GetAddressFragment : BaseDemoFragment<FragmentGetAddressBinding>() {
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private lateinit var synchronizer: Synchronizer
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private lateinit var viewingKey: UnifiedFullViewingKey
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private lateinit var seed: ByteArray
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/**
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* Initialize the required values that would normally live outside the demo but are repeated
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* here for completeness so that each demo file can serve as a standalone example.
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*/
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private fun setup() {
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// defaults to the value of `DemoConfig.seedWords` but can also be set by the user
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val seedPhrase = sharedViewModel.seedPhrase.value
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// Use a BIP-39 library to convert a seed phrase into a byte array. Most wallets already
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// have the seed stored
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seed = Mnemonics.MnemonicCode(seedPhrase).toSeed()
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// converting seed into viewingKey
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viewingKey = runBlocking {
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DerivationTool.deriveUnifiedFullViewingKeys(
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seed,
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ZcashNetwork.fromResources(requireApplicationContext())
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).first()
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}
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val network = ZcashNetwork.fromResources(requireApplicationContext())
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synchronizer = Synchronizer.newBlocking(
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requireApplicationContext(),
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network,
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lightWalletEndpoint = LightWalletEndpoint.defaultForNetwork(network),
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seed = seed,
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birthday = network.saplingActivationHeight
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)
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}
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private fun displayAddress() {
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viewLifecycleOwner.lifecycleScope.launchWhenStarted {
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binding.unifiedAddress.apply {
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reportTraceEvent(ProvideAddressBenchmarkTrace.Event.UNIFIED_ADDRESS_START)
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val uaddress = synchronizer.getUnifiedAddress()
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reportTraceEvent(ProvideAddressBenchmarkTrace.Event.UNIFIED_ADDRESS_END)
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text = uaddress
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setOnClickListener { copyToClipboard(uaddress) }
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}
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binding.saplingAddress.apply {
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reportTraceEvent(ProvideAddressBenchmarkTrace.Event.SAPLING_ADDRESS_START)
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val sapling = synchronizer.getSaplingAddress()
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reportTraceEvent(ProvideAddressBenchmarkTrace.Event.SAPLING_ADDRESS_END)
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text = sapling
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setOnClickListener { copyToClipboard(sapling) }
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}
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binding.transparentAddress.apply {
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reportTraceEvent(ProvideAddressBenchmarkTrace.Event.TRANSPARENT_ADDRESS_START)
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val transparent = synchronizer.getTransparentAddress()
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reportTraceEvent(ProvideAddressBenchmarkTrace.Event.TRANSPARENT_ADDRESS_END)
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text = transparent
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setOnClickListener { copyToClipboard(transparent) }
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}
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}
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}
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//
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// Android Lifecycle overrides
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//
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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reportTraceEvent(ProvideAddressBenchmarkTrace.Event.ADDRESS_SCREEN_START)
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setup()
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}
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override fun onResume() {
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super.onResume()
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displayAddress()
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}
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override fun onDestroy() {
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super.onDestroy()
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reportTraceEvent(ProvideAddressBenchmarkTrace.Event.ADDRESS_SCREEN_END)
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}
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//
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// Base Fragment overrides
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//
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override fun onActionButtonClicked() {
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viewLifecycleOwner.lifecycleScope.launch {
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copyToClipboard(
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DerivationTool.deriveUnifiedAddress(
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viewingKey.encoding,
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ZcashNetwork.fromResources(requireApplicationContext())
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),
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"Unified address copied to clipboard!"
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)
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}
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}
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override fun inflateBinding(layoutInflater: LayoutInflater): FragmentGetAddressBinding =
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FragmentGetAddressBinding.inflate(layoutInflater)
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}
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