UICCEditor/app/src/main/java/com/example/uicceditor/MainActivity.kt

package com.example.uicceditor

import android.os.Bundle
import android.telephony.IccOpenLogicalChannelResponse
import android.telephony.TelephonyManager
import android.util.Log
import androidx.activity.enableEdgeToEdge
import androidx.appcompat.app.AppCompatActivity
import androidx.core.view.ViewCompat
import androidx.core.view.WindowInsetsCompat

class MainActivity : AppCompatActivity() {
    private val TAG = "APDU"

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge()
        setContentView(R.layout.activity_main)
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
            insets
        }

        runApdu("00a40004022fe2")
        runApdu("00b000000a")
    }

    fun runApdu(cmd: String): String {
        val cla = cmd.substring(0, 2).toInt(16)
        val ins = cmd.substring(2, 4).toInt(16)
        val p1 = cmd.substring(4, 6).toInt(16)
        val p2 = cmd.substring(6, 8).toInt(16)
        val p3 = cmd.substring(8, 10).toInt(16)
        val data = cmd.substring(10)

        Log.i(TAG, "sendApdu: $cmd")
        val res =
            (getSystemService(TELEPHONY_SERVICE) as TelephonyManager).iccTransmitApduBasicChannel(
                cla,
                ins,
                p1,
                p2,
                p3,
                data
            )
        Log.i(TAG, "apdu response: $res")
        return res
    }
}