2022-12-23 02:00:37 -08:00
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package cash.z.ecc.android.sdk.demoapp
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import android.content.ClipData
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import android.content.ClipboardManager
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import android.content.Context
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import android.content.Intent
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import android.net.Uri
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import androidx.activity.viewModels
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import androidx.compose.material3.SnackbarDuration
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import androidx.compose.material3.SnackbarHostState
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.remember
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import androidx.compose.runtime.rememberCoroutineScope
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import androidx.lifecycle.compose.collectAsStateWithLifecycle
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import androidx.navigation.NavHostController
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import androidx.navigation.NavOptionsBuilder
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import androidx.navigation.compose.NavHost
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import androidx.navigation.compose.composable
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import androidx.navigation.compose.rememberNavController
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import cash.z.ecc.android.sdk.SdkSynchronizer
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import cash.z.ecc.android.sdk.demoapp.NavigationTargets.BALANCE
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import cash.z.ecc.android.sdk.demoapp.NavigationTargets.HOME
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import cash.z.ecc.android.sdk.demoapp.NavigationTargets.SEND
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import cash.z.ecc.android.sdk.demoapp.NavigationTargets.TRANSACTIONS
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import cash.z.ecc.android.sdk.demoapp.NavigationTargets.WALLET_ADDRESS_DETAILS
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import cash.z.ecc.android.sdk.demoapp.ui.screen.addresses.view.Addresses
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import cash.z.ecc.android.sdk.demoapp.ui.screen.balance.view.Balance
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import cash.z.ecc.android.sdk.demoapp.ui.screen.home.view.Home
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import cash.z.ecc.android.sdk.demoapp.ui.screen.home.viewmodel.WalletViewModel
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import cash.z.ecc.android.sdk.demoapp.ui.screen.send.view.Send
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import cash.z.ecc.android.sdk.demoapp.ui.screen.transactions.view.Transactions
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import cash.z.ecc.android.sdk.demoapp.util.AndroidApiVersion
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import cash.z.ecc.android.sdk.demoapp.util.fromResources
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import cash.z.ecc.android.sdk.model.ZcashNetwork
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import kotlinx.coroutines.CoroutineScope
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import kotlinx.coroutines.launch
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@Composable
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@Suppress("LongMethod", "ktlint:standard:function-naming")
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internal fun ComposeActivity.Navigation() {
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val navController = rememberNavController()
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val walletViewModel by viewModels<WalletViewModel>()
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NavHost(navController = navController, startDestination = HOME) {
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composable(HOME) {
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val walletSnapshot = walletViewModel.walletSnapshot.collectAsStateWithLifecycle().value
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if (null == walletSnapshot) {
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// Display loading indicator
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} else {
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Home(
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walletSnapshot,
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goBalance = { navController.navigateJustOnce(BALANCE) },
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goSend = { navController.navigateJustOnce(SEND) },
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goAddressDetails = { navController.navigateJustOnce(WALLET_ADDRESS_DETAILS) },
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isTestnet = ZcashNetwork.fromResources(applicationContext) == ZcashNetwork.Testnet,
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goTestnetFaucet = {
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runCatching {
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startActivity(newBrowserIntent("https://faucet.zecpages.com/")) // NON-NLS
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}.onFailure {
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// This could fail on devices without a browser.
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// An improvement here in the future would be showing a snackbar or error dialog.
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}
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},
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goTransactions = { navController.navigateJustOnce(TRANSACTIONS) },
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resetSdk = { walletViewModel.resetSdk() },
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rewind = { walletViewModel.rewind() }
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)
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}
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}
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composable(BALANCE) {
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val synchronizer = walletViewModel.synchronizer.collectAsStateWithLifecycle().value
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val walletSnapshot = walletViewModel.walletSnapshot.collectAsStateWithLifecycle().value
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if (null == synchronizer || null == walletSnapshot) {
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// Display loading indicator
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} else {
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val scope = rememberCoroutineScope()
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Balance(
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walletSnapshot,
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onShieldFunds = { walletViewModel.shieldFunds() },
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sendState = walletViewModel.sendState.collectAsStateWithLifecycle().value,
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onBack = {
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walletViewModel.clearSendOrShieldState()
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navController.popBackStackJustOnce(BALANCE)
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},
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onRefresh = {
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scope.launch {
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(synchronizer as SdkSynchronizer).refreshAllBalances()
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}
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}
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)
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}
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}
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composable(WALLET_ADDRESS_DETAILS) {
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val synchronizer = walletViewModel.synchronizer.collectAsStateWithLifecycle().value
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if (null == synchronizer) {
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// Display loading indicator
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} else {
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val scope = rememberCoroutineScope()
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val snackbarHostState = remember { SnackbarHostState() }
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// I don't like giving synchronizer directly over to the view, but for now it isolates each of the
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// demo app views
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Addresses(
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synchronizer = synchronizer,
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copyToClipboard = { tag, textToCopy ->
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copyToClipboard(
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applicationContext,
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tag,
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textToCopy,
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scope,
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snackbarHostState
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)
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},
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onBack = { navController.popBackStackJustOnce(WALLET_ADDRESS_DETAILS) },
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snackbarHostState = snackbarHostState
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)
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}
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}
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composable(SEND) {
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val synchronizer = walletViewModel.synchronizer.collectAsStateWithLifecycle().value
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val walletSnapshot = walletViewModel.walletSnapshot.collectAsStateWithLifecycle().value
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val spendingKey = walletViewModel.spendingKey.collectAsStateWithLifecycle().value
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if (null == synchronizer || null == walletSnapshot || null == spendingKey) {
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// Display loading indicator
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} else {
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Send(
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walletSnapshot = walletSnapshot,
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sendState = walletViewModel.sendState.collectAsStateWithLifecycle().value,
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onSend = {
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walletViewModel.send(it)
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},
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onBack = {
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walletViewModel.clearSendOrShieldState()
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navController.popBackStackJustOnce(SEND)
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}
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)
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}
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}
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composable(TRANSACTIONS) {
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val synchronizer = walletViewModel.synchronizer.collectAsStateWithLifecycle().value
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if (null == synchronizer) {
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// Display loading indicator
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} else {
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Transactions(
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synchronizer = synchronizer,
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onBack = { navController.popBackStackJustOnce(TRANSACTIONS) }
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)
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}
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}
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}
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}
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private fun NavHostController.navigateJustOnce(
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route: String,
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navOptionsBuilder: (NavOptionsBuilder.() -> Unit)? = null
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) {
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if (currentDestination?.route == route) {
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return
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}
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if (navOptionsBuilder != null) {
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navigate(route, navOptionsBuilder)
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} else {
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navigate(route)
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}
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}
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/**
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* Pops up the current screen from the back stack. Parameter currentRouteToBePopped is meant to be
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* set only to the current screen so we can easily debounce multiple screen popping from the back stack.
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*
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* @param currentRouteToBePopped current screen which should be popped up.
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*/
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private fun NavHostController.popBackStackJustOnce(currentRouteToBePopped: String) {
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if (currentDestination?.route != currentRouteToBePopped) {
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return
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}
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popBackStack()
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}
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private fun copyToClipboard(
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context: Context,
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tag: String,
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textToCopy: String,
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scope: CoroutineScope,
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snackbarHostState: SnackbarHostState
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) {
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val clipboardManager = context.getSystemService(ClipboardManager::class.java)
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val data =
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ClipData.newPlainText(
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tag,
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textToCopy
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)
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clipboardManager.setPrimaryClip(data)
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// Notify users with Snackbar only on Android level 32 and lower, as 33 and higher notifies users by its own system
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// way
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if (!AndroidApiVersion.isAtLeastT) {
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scope.launch {
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snackbarHostState.showSnackbar(
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message = context.getString(R.string.address_copied, textToCopy),
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duration = SnackbarDuration.Short
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)
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}
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}
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}
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private fun newBrowserIntent(url: String): Intent {
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val uri = Uri.parse(url)
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val intent =
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Intent(Intent.ACTION_VIEW, uri).apply {
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addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
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}
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return intent
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}
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object NavigationTargets {
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const val HOME = "home" // NON-NLS
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const val BALANCE = "balance" // NON-NLS
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const val WALLET_ADDRESS_DETAILS = "wallet_address_details" // NON-NLS
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const val SEND = "send" // NON-NLS
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const val TRANSACTIONS = "transactions" // NON-NLS
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}
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