How to toggle NFC on/off programmatically on Android POS devices (Sunmi V2)

[1453alabanda]

Description

I'm developing a React Native application for Sunmi V2 Android POS devices and need to programmatically turn NFC on/off when the user taps the toggle button. Currently, I can check if NFC is enabled using NfcManager.isEnabled() and redirect to settings using NfcManager.goToNfcSetting(), but I want to enable/disable NFC directly from my app without user intervention.

Current Implementation

const toggleNfcScan = async () => {
    const isEnabled = await NfcManager.isEnabled();
    
    if (!isEnabled) {
        // Currently redirecting to settings
        await NfcManager.goToNfcSetting();
        // But I want to enable NFC programmatically
    }
    
    // Start scanning...
};

Use Case Our POS application needs to:

Check NFC status when user taps the scan button If NFC is disabled, enable it automatically Start scanning for NFC cards Disable NFC when done (optional)

Environment

Device: Sunmi V2 Android POS React Native: 0.72.x react-native-nfc-manager: latest Android version: 8.1 (API 27)

Questions

Is it possible to add a method like NfcManager.enable() or NfcManager.disable() to the library? For POS devices with system-level permissions, what would be the best approach? Has anyone successfully implemented this on Sunmi or similar POS devices?

Any guidance or workaround would be greatly appreciated. Thank you!