How do I change the default text?

[ghost]

Hello, I want to know how I change the default NFCDialogAlertMessage?

[franckbour]

Sorry, This is not yet implemented.

[saamerm]

@franckbour this is how NFCDialogAlertMessage is consumed in the NFC.iOS.cs currently:

/// <summary>
/// Starts tags detection
/// </summary>
public void StartListening()
{
    _customInvalidation = false;
    _isWriting = false;
    _isFormatting = false;

    NfcSession = new NFCTagReaderSession(NFCPollingOption.Iso14443 | NFCPollingOption.Iso15693, this, DispatchQueue.CurrentQueue)
    {
        AlertMessage = UIMessages.NFCDialogAlertMessage
    };
    NfcSession?.BeginSession();
}

How would you like the change to be made?

First way we can solve:

We can either update the interface/API in INFC.shared.cs to this: void StartListening(string listeningMessage = ""); and then change the AlertMessage line in the StartListening() from NFC.iOS.cs shown above, to this: AlertMessage = string.IsNullOrEmpty(listeningMessage)? listeningMessage : UIMessages.NFCDialogAlertMessage

Second way we can solve:

Convert NFCDialogAlertMessage in UIMessages to be a static variable that can be edited:

public static string NFCDialogAlertMessage = "Please hold your phone near an NFC tag";

and create a OverrideiOSDialogAlertMessage() in INFC.shared.cs

void OverrideiOSDialogAlertMessage(string dialogAlertMessage);

that overrides the value of NFCDialogAlertMessage

public void OverrideiOSDialogAlertMessage(string dialogAlertMessage) =>
            UIMessages.NFCDialogAlertMessage = dialogAlertMessage;

[franckbour]

I think the second way is better because there are other messages that users might want to change.

We could add a new configuration object like below and pass it to the CrossNFC.Current instance via a method like CrossNFC.Current.SetConfiguration(cfg)

public class NfcConfiguration
{
    public UserDefinedMessages Messages { get; set; }
}

public class UserDefinedMessages
{
    public string NFCDialogAlertMessage { get; set; } = "Please hold your phone near a NFC tag";
    public string NFCErrorRead { get; set; } = "Read error. Please try again";
    public string NFCErrorEmptyTag { get; set; } = "Tag is empty";
    public string NFCErrorReadOnlyTag { get; set; } = "Tag is not writable";
    public string NFCErrorCapacityTag { get; set; } = "Tag's capacity is too low";
    public string NFCErrorMissingTag { get; set; } = "Tag is missing";
    public string NFCErrorMissingTagInfo { get; set; } = "No Tag Informations: nothing to write";
    public string NFCErrorNotSupportedTag { get; set; } = "Tag is not supported";
    public string NFCErrorNotCompliantTag { get; set; } = "Tag is not NDEF compliant";
    public string NFCErrorWrite { get; set; } = "Nothing to write";
    public string NFCSuccessRead { get; set; } = "Tag Read Success";
    public string NFCSuccessWrite { get; set; } = "Tag Write Success";
    public string NFCSuccessClear { get; set; } = "Tag Clear Success";
}

What do you think?

[saamerm]

I agree! This looks solid