Import EVM Tokens

[saltict]

Allow import ERC20/ERC721 Token

[sokol142]

Version test: v0.1.7 (60) Device test: IP 8 Plus (15.5)

Please check the issues

Bugs

• [x] The buttons is covered when opening the virtual keyboard

• List tokens when search token

• List token when search token to delete

• [x] Incorrect message on the empty list of Chain Select screen

• [x] Can't import EVM tokens in case of below Pre-condition: Turn on some EVM chain: Moonbase, Moonbeam, Moonriver, Astar-EVM Steps:

  1. Go to the Import EVM token screen
  2. Enter the valid contract address for Astar-EVM chain (0x03065E84748a9e4a1AEbef15AC89da1Cdf18B202)
  3. Select Astar-EVM chain

Actual: Still show err message "Invalid contract for the selected chain", disable "Add token" button

• When only the Astar-EVM chain then the Add token button is enabled

https://user-images.githubusercontent.com/102292476/192930752-84ef902f-6798-45b4-995d-0c9360262300.MP4

Expected: Add token successfully

• [x] Do not close the Configure EVM Token screen in case of user disconnect chain Pre-condition: Imported any token successfully Steps:
  1. Go to the Network Setting screen
  2. Disconnect to any EVM chain (ex: Astar-EVM chain)
  3. Go to the Manage tokens list
  4. Touch on any custom token of the Astar-EVM chain
  5. On the Configure EVM Token screen, touch on Save button

Actual: Do not close the Configure EVM Token screen

https://user-images.githubusercontent.com/102292476/192935303-8dcfc0c4-dedb-4455-912d-555fd18afbaa.MP4

Expected: Close the Configure EVM Token screen

• [x] The bug happens when deleting tokens in case of a disconnected chain

Improvement

• [x] Add the Scan QR code on the Import Token screen
• [x] Discuss more: Add the "Manage Tokens List", "Custom Tokens" on the empty list
• [x] If the user does not select tokens then disable the "Delete token" button or show a warning message

[sokol142]

Version test: v0.1.7 (61)

• [x] Crash app in case of scan QR while no chain available
• [x] Crash app when scan QR code

[sokol142]

Version test: v0.1.7 (62) Please check bugs:

• [x] Do not showing contract address after scan QR successfully

[sokol142]

Version test: v0.1.7 (65) Validation passed.