Function Signature
Future<void> deleteKeychain()
Description
Removes all local wallet data from the device keychain. This deletes the signing shares stored locally.
After calling this method, the wallet will need to be recovered from backup to use again. Make sure the wallet is backed up before deleting the keychain.
On iOS, this method is a no-op (does nothing) as iOS doesn’t support programmatic keychain deletion in the same way.
Parameters
This method takes no parameters.
Returns
void
Example
import 'package:portal_flutter/portal_flutter.dart';
final portal = Portal();
// First, ensure wallet is backed up
final isBackedUp = await portal.isWalletBackedUp();
if (isBackedUp) {
// Safe to delete local data
await portal.deleteKeychain();
print('Local wallet data deleted');
} else {
print('Please backup wallet before deleting');
}
Use Cases
Clear Data on Logout
Future<void> logout() async {
final portal = Portal();
// Ensure backup exists
if (await portal.isWalletBackedUp()) {
await portal.deleteKeychain();
}
// Clear other app data...
}
Reset Wallet
Future<void> resetWallet() async {
final portal = Portal();
// Delete local data
await portal.deleteKeychain();
// Create new wallet
final addresses = await portal.createWallet();
print('New wallet created: ${addresses.ethereum}');
}
Errors
| Code | Description |
|---|
NOT_INITIALIZED | Portal was not initialized |
DELETE_FAILED | Failed to delete keychain data |
