[wifi_scan] Checklist for 1.0

[daadu]

APIs

• [x] Future<bool> hasCapability()
• [x] Future<CanStartScan> canStartScan({bool askPermissions = true})
• [x] Future<bool> startScan()
• [x] Future<CanGetScannedResults> canGetScannedResults({bool askPermissions = true})
• [x] Future<List<WiFiAccessPoint>> getScannedResults
• [x] Stream<List<WiFiAccessPoint>> onScannedResultsAvailable

Platform Feature Coverage

• [ ] Android
• constants
  • [ ] WifiManager.ACTION_REQUEST_SCAN_ALWAYS_AVAILABLE
  • [ ] WifiManager.ACTION_WIFI_SCAN_AVAILABILITY_CHANGED
  • [ ] WifiManager.EXTRA_SCAN_AVAILABLE
  • [x] WifiManager.EXTRA_RESULTS_UPDATED
  • [x] WifiManager.SCAN_RESULTS_AVAILABLE_ACTION
  • [ ] WifiManager.WIFI_MODE_SCAN_ONLY
• methods
  • [x] WifiManager.startScan()
  • [x] WifiManager.getScanResults()
  • [ ] WifiManager.isScanAlwaysAvailable()
  • ~~WifiManager.isScanThrottleEnabled()~~ Not useful - modified with only developer options.
  • [ ] WifiManager.registerScanResultsCallback(Executor executor, WifiManager.ScanResultsCallback callback)
  • [ ] WifiManager.unregisterScanResultsCallback(WifiManager.ScanResultsCallback callback)

Documentation

• [x] document API references
• [x] proper README

Test

• [ ] automated unit tests
  • [x] dart code
  • [ ] android code
  • [ ] ios code
• [ ] automated integration tests