Merge remote-tracking branch 'openeuicc/master' into jmp

Mainly a treewide `findViewById` -> `requireViewById`, with
miscellaneous fixes.

app-common/src/main/java/im/angry/openeuicc/core/DefaultEuiccChannelFactory.kt

@@ -24,7 +24,7 @@ open class DefaultEuiccChannelFactory(protected val context: Context) : EuiccCha
 
         Log.i(DefaultEuiccChannelManager.TAG, "Trying OMAPI for physical slot ${port.card.physicalSlotIndex}")
         try {
-            return OmapiChannel(seService!!, port)
+            return EuiccChannel(port, OmapiApduInterface(seService!!, port))
         } catch (e: IllegalArgumentException) {
             // Failed
             Log.w(

app-common/src/main/java/im/angry/openeuicc/core/EuiccChannel.kt

@@ -1,16 +1,21 @@
 package im.angry.openeuicc.core
 
 import im.angry.openeuicc.util.*
+import net.typeblog.lpac_jni.ApduInterface
 import net.typeblog.lpac_jni.LocalProfileAssistant
+import net.typeblog.lpac_jni.impl.HttpInterfaceImpl
+import net.typeblog.lpac_jni.impl.LocalProfileAssistantImpl
 
-abstract class EuiccChannel(
+class EuiccChannel(
-    val port: UiccPortInfoCompat
+    val port: UiccPortInfoCompat,
+    apduInterface: ApduInterface,
 ) {
     val slotId = port.card.physicalSlotIndex // PHYSICAL slot
     val logicalSlotId = port.logicalSlotIndex
     val portId = port.portIndex
 
-    abstract val lpa: LocalProfileAssistant
+    val lpa: LocalProfileAssistant = LocalProfileAssistantImpl(apduInterface, HttpInterfaceImpl())
+
     val valid: Boolean
         get() = lpa.valid
 

app-common/src/main/java/im/angry/openeuicc/core/OmapiApduInterface.kt

@@ -5,9 +5,6 @@ import android.se.omapi.SEService
 import android.se.omapi.Session
 import im.angry.openeuicc.util.*
 import net.typeblog.lpac_jni.ApduInterface
-import net.typeblog.lpac_jni.LocalProfileAssistant
-import net.typeblog.lpac_jni.impl.HttpInterfaceImpl
-import net.typeblog.lpac_jni.impl.LocalProfileAssistantImpl
 
 class OmapiApduInterface(
     private val service: SEService,
@@ -48,12 +45,3 @@ class OmapiApduInterface(
     }
 
 }
-
-class OmapiChannel(
-    service: SEService,
-    port: UiccPortInfoCompat,
-) : EuiccChannel(port) {
-    override val lpa: LocalProfileAssistant = LocalProfileAssistantImpl(
-        OmapiApduInterface(service, port),
-        HttpInterfaceImpl())
-}

app-common/src/main/java/im/angry/openeuicc/di/DefaultUiComponentFactory.kt

@@ -1,9 +1,13 @@
 package im.angry.openeuicc.di
 
+import androidx.fragment.app.Fragment
 import im.angry.openeuicc.core.EuiccChannel
 import im.angry.openeuicc.ui.EuiccManagementFragment
+import im.angry.openeuicc.ui.NoEuiccPlaceholderFragment
 
 open class DefaultUiComponentFactory : UiComponentFactory {
     override fun createEuiccManagementFragment(channel: EuiccChannel): EuiccManagementFragment =
         EuiccManagementFragment.newInstance(channel.slotId, channel.portId)
+
+    override fun createNoEuiccPlaceholderFragment(): Fragment = NoEuiccPlaceholderFragment()
 }

app-common/src/main/java/im/angry/openeuicc/di/UiComponentFactory.kt

@@ -1,8 +1,10 @@
 package im.angry.openeuicc.di
 
+import androidx.fragment.app.Fragment
 import im.angry.openeuicc.core.EuiccChannel
 import im.angry.openeuicc.ui.EuiccManagementFragment
 
 interface UiComponentFactory {
     fun createEuiccManagementFragment(channel: EuiccChannel): EuiccManagementFragment
+    fun createNoEuiccPlaceholderFragment(): Fragment
 }

app-common/src/main/java/im/angry/openeuicc/ui/EuiccManagementFragment.kt

@@ -58,9 +58,9 @@ open class EuiccManagementFragment : Fragment(), EuiccProfilesChangedListener,
     ): View {
         val view = inflater.inflate(R.layout.fragment_euicc, container, false)
 
-        swipeRefresh = view.findViewById(R.id.swipe_refresh)
+        swipeRefresh = view.requireViewById(R.id.swipe_refresh)
-        fab = view.findViewById(R.id.fab)
+        fab = view.requireViewById(R.id.fab)
-        profileList = view.findViewById(R.id.profile_list)
+        profileList = view.requireViewById(R.id.profile_list)
 
         return view
     }
@@ -191,11 +191,11 @@ open class EuiccManagementFragment : Fragment(), EuiccProfilesChangedListener,
     }
 
     inner class ProfileViewHolder(private val root: View) : ViewHolder(root) {
-        private val iccid: TextView = root.findViewById(R.id.iccid)
+        private val iccid: TextView = root.requireViewById(R.id.iccid)
-        private val name: TextView = root.findViewById(R.id.name)
+        private val name: TextView = root.requireViewById(R.id.name)
-        private val state: TextView = root.findViewById(R.id.state)
+        private val state: TextView = root.requireViewById(R.id.state)
-        private val provider: TextView = root.findViewById(R.id.provider)
+        private val provider: TextView = root.requireViewById(R.id.provider)
-        private val profileMenu: ImageButton = root.findViewById(R.id.profile_menu)
+        private val profileMenu: ImageButton = root.requireViewById(R.id.profile_menu)
 
         init {
             iccid.setOnClickListener {

app-common/src/main/java/im/angry/openeuicc/ui/LogsActivity.kt

@@ -39,12 +39,12 @@ class LogsActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_logs)
-        setSupportActionBar(findViewById(R.id.toolbar))
+        setSupportActionBar(requireViewById(R.id.toolbar))
         supportActionBar!!.setDisplayHomeAsUpEnabled(true)
 
-        swipeRefresh = findViewById(R.id.swipe_refresh)
+        swipeRefresh = requireViewById(R.id.swipe_refresh)
-        scrollView = findViewById(R.id.scroll_view)
+        scrollView = requireViewById(R.id.scroll_view)
-        logText = findViewById(R.id.log_text)
+        logText = requireViewById(R.id.log_text)
 
         swipeRefresh.setOnRefreshListener {
             lifecycleScope.launch {

app-common/src/main/java/im/angry/openeuicc/ui/MainActivity.kt

@@ -25,20 +25,22 @@ open class MainActivity : AppCompatActivity(), OpenEuiccContextMarker {
     }
 
     private lateinit var spinnerAdapter: ArrayAdapter<String>
+    private lateinit var spinnerItem: MenuItem
     private lateinit var spinner: Spinner
 
     private val fragments = arrayListOf<EuiccManagementFragment>()
 
-    private lateinit var noEuiccPlaceholder: View
-
     protected lateinit var tm: TelephonyManager
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
-        setSupportActionBar(findViewById(R.id.toolbar))
+        setSupportActionBar(requireViewById(R.id.toolbar))
 
-        noEuiccPlaceholder = findViewById(R.id.no_euicc_placeholder)
+        supportFragmentManager.beginTransaction().replace(
+            R.id.fragment_root,
+            appContainer.uiComponentFactory.createNoEuiccPlaceholderFragment()
+        ).commit()
 
         tm = telephonyManager
 
@@ -53,7 +55,11 @@ open class MainActivity : AppCompatActivity(), OpenEuiccContextMarker {
         menuInflater.inflate(R.menu.activity_main, menu)
 
         if (!this::spinner.isInitialized) {
-            spinner = menu.findItem(R.id.spinner).actionView as Spinner
+            spinnerItem = menu.findItem(R.id.spinner)
+            spinner = spinnerItem.actionView as Spinner
+            if (spinnerAdapter.isEmpty) {
+                spinnerItem.isVisible = false
+            }
             spinner.adapter = spinnerAdapter
             spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
                 override fun onItemSelected(
@@ -108,7 +114,9 @@ open class MainActivity : AppCompatActivity(), OpenEuiccContextMarker {
             }
 
             if (fragments.isNotEmpty()) {
-                noEuiccPlaceholder.visibility = View.GONE
+                if (this@MainActivity::spinner.isInitialized) {
+                    spinnerItem.isVisible = true
+                }
                 supportFragmentManager.beginTransaction().replace(R.id.fragment_root, fragments.first()).commit()
             }
         }

app-common/src/main/java/im/angry/openeuicc/ui/NoEuiccPlaceholderFragment.kt

@@ -0,0 +1,18 @@
+package im.angry.openeuicc.ui
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import im.angry.openeuicc.common.R
+
+class NoEuiccPlaceholderFragment : Fragment() {
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return inflater.inflate(R.layout.fragment_no_euicc_placeholder, container, false)
+    }
+}

app-common/src/main/java/im/angry/openeuicc/ui/NotificationsActivity.kt

@@ -37,14 +37,14 @@ class NotificationsActivity: AppCompatActivity(), OpenEuiccContextMarker {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_notifications)
-        setSupportActionBar(findViewById(R.id.toolbar))
+        setSupportActionBar(requireViewById(R.id.toolbar))
         supportActionBar!!.setDisplayHomeAsUpEnabled(true)
 
         euiccChannel = euiccChannelManager
             .findEuiccChannelBySlotBlocking(intent.getIntExtra("logicalSlotId", 0))!!
 
-        swipeRefresh = findViewById(R.id.swipe_refresh)
+        swipeRefresh = requireViewById(R.id.swipe_refresh)
-        notificationList = findViewById(R.id.recycler_view)
+        notificationList = requireViewById(R.id.recycler_view)
 
         notificationList.layoutManager =
             LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false)
@@ -118,8 +118,8 @@ class NotificationsActivity: AppCompatActivity(), OpenEuiccContextMarker {
     @SuppressLint("ClickableViewAccessibility")
     inner class NotificationViewHolder(private val root: View):
         RecyclerView.ViewHolder(root), View.OnCreateContextMenuListener, OnMenuItemClickListener {
-        private val address: TextView = root.findViewById(R.id.notification_address)
+        private val address: TextView = root.requireViewById(R.id.notification_address)
-        private val profileName: TextView = root.findViewById(R.id.notification_profile_name)
+        private val profileName: TextView = root.requireViewById(R.id.notification_profile_name)
 
         private lateinit var notification: LocalProfileNotificationWrapper
 

app-common/src/main/java/im/angry/openeuicc/ui/ProfileDownloadFragment.kt

@@ -69,13 +69,13 @@ class ProfileDownloadFragment : BaseMaterialDialogFragment(),
     ): View {
         val view = inflater.inflate(R.layout.fragment_profile_download, container, false)
 
-        toolbar = view.findViewById(R.id.toolbar)
+        toolbar = view.requireViewById(R.id.toolbar)
-        profileDownloadServer = view.findViewById(R.id.profile_download_server)
+        profileDownloadServer = view.requireViewById(R.id.profile_download_server)
-        profileDownloadCode = view.findViewById(R.id.profile_download_code)
+        profileDownloadCode = view.requireViewById(R.id.profile_download_code)
-        profileDownloadConfirmationCode = view.findViewById(R.id.profile_download_confirmation_code)
+        profileDownloadConfirmationCode = view.requireViewById(R.id.profile_download_confirmation_code)
-        profileDownloadIMEI = view.findViewById(R.id.profile_download_imei)
+        profileDownloadIMEI = view.requireViewById(R.id.profile_download_imei)
-        profileDownloadFreeSpace = view.findViewById(R.id.profile_download_free_space)
+        profileDownloadFreeSpace = view.requireViewById(R.id.profile_download_free_space)
-        progress = view.findViewById(R.id.progress)
+        progress = view.requireViewById(R.id.progress)
 
         toolbar.inflateMenu(R.menu.fragment_profile_download)
 

app-common/src/main/java/im/angry/openeuicc/ui/ProfileRenameFragment.kt

@@ -46,9 +46,9 @@ class ProfileRenameFragment : BaseMaterialDialogFragment(), EuiccChannelFragment
     ): View {
         val view = inflater.inflate(R.layout.fragment_profile_rename, container, false)
 
-        toolbar = view.findViewById(R.id.toolbar)
+        toolbar = view.requireViewById(R.id.toolbar)
-        profileRenameNewName = view.findViewById(R.id.profile_rename_new_name)
+        profileRenameNewName = view.requireViewById(R.id.profile_rename_new_name)
-        progress = view.findViewById(R.id.progress)
+        progress = view.requireViewById(R.id.progress)
 
         toolbar.inflateMenu(R.menu.fragment_profile_rename)
 

app-common/src/main/java/im/angry/openeuicc/ui/SettingsActivity.kt

@@ -9,7 +9,7 @@ class SettingsActivity: AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_settings)
-        setSupportActionBar(findViewById(R.id.toolbar))
+        setSupportActionBar(requireViewById(R.id.toolbar))
         supportActionBar!!.setDisplayHomeAsUpEnabled(true)
         supportFragmentManager.beginTransaction()
             .replace(R.id.settings_container, SettingsFragment())

app-common/src/main/java/im/angry/openeuicc/ui/SlotSelectFragment.kt

@@ -39,13 +39,13 @@ class SlotSelectFragment : BaseMaterialDialogFragment(), OpenEuiccContextMarker
     ): View? {
         val view = inflater.inflate(R.layout.fragment_slot_select, container, false)
 
-        toolbar = view.findViewById(R.id.toolbar)
+        toolbar = view.requireViewById(R.id.toolbar)
         toolbar.setTitle(R.string.slot_select)
         toolbar.inflateMenu(R.menu.fragment_slot_select)
 
         val adapter = ArrayAdapter<String>(inflater.context, R.layout.spinner_item)
 
-        spinner = view.findViewById(R.id.spinner)
+        spinner = view.requireViewById(R.id.spinner)
         spinner.adapter = adapter
 
         channels.forEach { channel ->

app-common/src/main/java/im/angry/openeuicc/util/Utils.kt

@@ -24,7 +24,7 @@ val Context.selfAppVersion: String
     get() =
         try {
             val pInfo = packageManager.getPackageInfo(packageName, 0)
-            pInfo.versionName
+            pInfo.versionName!!
         } catch (e: PackageManager.NameNotFoundException) {
             throw RuntimeException(e)
         }

app-common/src/main/res/layout/activity_main.xml

@@ -21,15 +21,6 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintLeft_toLeftOf="parent"
         app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/toolbar">
+        app:layout_constraintTop_toBottomOf="@id/toolbar"/>
-        <TextView
-            android:id="@+id/no_euicc_placeholder"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:layout_marginStart="40dp"
-            android:layout_marginEnd="40dp"
-            android:gravity="center"
-            android:text="@string/no_euicc" />
-    </FrameLayout>
 
 </androidx.constraintlayout.widget.ConstraintLayout>

app-common/src/main/res/layout/fragment_no_euicc_placeholder.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+    <TextView
+        android:id="@+id/no_euicc_placeholder"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_marginStart="40dp"
+        android:layout_marginEnd="40dp"
+        android:gravity="center"
+        android:text="@string/no_euicc" />
+</FrameLayout>

app-common/src/main/res/values/strings.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string name="no_euicc">No eUICC card on this device is accessible by this app.\nInsert a supported eUICC card, or try out the privileged OpenEUICC app instead.</string>
+    <string name="no_euicc">No removable eUICC card accessible by this app is detected on this device.</string>
     <string name="unknown">Unknown</string>
     <string name="help">Help</string>
 

app-unpriv/src/main/java/im/angry/openeuicc/UnprivilegedOpenEuiccApplication.kt

@@ -1,12 +1,17 @@
 package im.angry.openeuicc
 
 import android.content.Intent
+import im.angry.openeuicc.di.UnprivilegedAppContainer
 import im.angry.openeuicc.ui.LogsActivity
 import im.angry.openeuicc.util.*
 import kotlinx.coroutines.runBlocking
 import kotlin.system.exitProcess
 
 class UnprivilegedOpenEuiccApplication : OpenEuiccApplication() {
+    override val appContainer by lazy {
+        UnprivilegedAppContainer(this)
+    }
+
     override fun onCreate() {
         super.onCreate()
 

app-unpriv/src/main/java/im/angry/openeuicc/di/UnprivilegedAppContainer.kt

@@ -0,0 +1,9 @@
+package im.angry.openeuicc.di
+
+import android.content.Context
+
+class UnprivilegedAppContainer(context: Context) : DefaultAppContainer(context) {
+    override val uiComponentFactory by lazy {
+        UnprivilegedUiComponentFactory()
+    }
+}

app-unpriv/src/main/java/im/angry/openeuicc/di/UnprivilegedUiComponentFactory.kt

@@ -0,0 +1,9 @@
+package im.angry.openeuicc.di
+
+import androidx.fragment.app.Fragment
+import im.angry.openeuicc.ui.UnprivilegedNoEuiccPlaceholderFragment
+
+class UnprivilegedUiComponentFactory : DefaultUiComponentFactory() {
+    override fun createNoEuiccPlaceholderFragment(): Fragment =
+        UnprivilegedNoEuiccPlaceholderFragment()
+}

app-unpriv/src/main/java/im/angry/openeuicc/ui/CompatibilityCheckActivity.kt

@@ -24,10 +24,10 @@ class CompatibilityCheckActivity: AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_compatibility_check)
-        setSupportActionBar(findViewById(R.id.toolbar))
+        setSupportActionBar(requireViewById(R.id.toolbar))
         supportActionBar!!.setDisplayHomeAsUpEnabled(true)
 
-        compatibilityCheckList = findViewById(R.id.recycler_view)
+        compatibilityCheckList = requireViewById(R.id.recycler_view)
         compatibilityCheckList.layoutManager =
             LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false)
         compatibilityCheckList.addItemDecoration(DividerItemDecoration(this, LinearLayoutManager.VERTICAL))
@@ -51,9 +51,9 @@ class CompatibilityCheckActivity: AppCompatActivity() {
         }
 
     inner class ViewHolder(private val root: View): RecyclerView.ViewHolder(root) {
-        private val titleView: TextView = root.findViewById(R.id.compatibility_check_title)
+        private val titleView: TextView = root.requireViewById(R.id.compatibility_check_title)
-        private val descView: TextView = root.findViewById(R.id.compatibility_check_desc)
+        private val descView: TextView = root.requireViewById(R.id.compatibility_check_desc)
-        private val statusContainer: ViewGroup = root.findViewById(R.id.compatibility_check_status_container)
+        private val statusContainer: ViewGroup = root.requireViewById(R.id.compatibility_check_status_container)
 
         fun bindItem(item: CompatibilityCheck) {
             titleView.text = item.title
@@ -65,16 +65,16 @@ class CompatibilityCheckActivity: AppCompatActivity() {
 
             when (item.state) {
                 CompatibilityCheck.State.SUCCESS -> {
-                    root.findViewById<View>(R.id.compatibility_check_checkmark).visibility = View.VISIBLE
+                    root.requireViewById<View>(R.id.compatibility_check_checkmark).visibility = View.VISIBLE
                 }
                 CompatibilityCheck.State.FAILURE -> {
-                    root.findViewById<View>(R.id.compatibility_check_error).visibility = View.VISIBLE
+                    root.requireViewById<View>(R.id.compatibility_check_error).visibility = View.VISIBLE
                 }
                 CompatibilityCheck.State.FAILURE_UNKNOWN -> {
-                    root.findViewById<View>(R.id.compatibility_check_unknown).visibility = View.VISIBLE
+                    root.requireViewById<View>(R.id.compatibility_check_unknown).visibility = View.VISIBLE
                 }
                 else -> {
-                    root.findViewById<View>(R.id.compatibility_check_progress_bar).visibility = View.VISIBLE
+                    root.requireViewById<View>(R.id.compatibility_check_progress_bar).visibility = View.VISIBLE
                 }
             }
         }

app-unpriv/src/main/java/im/angry/openeuicc/ui/UnprivilegedNoEuiccPlaceholderFragment.kt

@@ -0,0 +1,29 @@
+package im.angry.openeuicc.ui
+
+import android.content.Intent
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import im.angry.easyeuicc.R
+
+class UnprivilegedNoEuiccPlaceholderFragment : Fragment() {
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        val view = inflater.inflate(
+            R.layout.fragment_no_euicc_placeholder_unprivileged,
+            container,
+            false
+        )
+
+        view.findViewById<View>(R.id.compatibility_check).setOnClickListener {
+            startActivity(Intent(requireContext(), CompatibilityCheckActivity::class.java))
+        }
+
+        return view
+    }
+}

app-unpriv/src/main/res/layout/fragment_no_euicc_placeholder_unprivileged.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <TextView
+        android:id="@+id/no_euicc_placeholder"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="40dp"
+        android:layout_marginEnd="40dp"
+        android:gravity="center"
+        android:text="@string/no_euicc"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent" />
+
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/compatibility_check"
+        android:text="@string/compatibility_check"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10dp"
+        app:layout_constraintTop_toBottomOf="@id/no_euicc_placeholder"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/java/im/angry/openeuicc/core/PrivilegedEuiccChannelFactory.kt

@@ -26,9 +26,7 @@ class PrivilegedEuiccChannelFactory(context: Context) : DefaultEuiccChannelFacto
                 "Trying TelephonyManager for slot ${port.card.physicalSlotIndex} port ${port.portIndex}"
             )
             try {
-                return TelephonyManagerChannel(
+                return EuiccChannel(port, TelephonyManagerApduInterface(port, tm))
-                    port, tm
-                )
             } catch (e: IllegalArgumentException) {
                 // Failed
                 Log.w(

app/src/main/java/im/angry/openeuicc/core/TelephonyManagerApduInterface.kt

@@ -3,10 +3,7 @@ package im.angry.openeuicc.core
 import android.telephony.IccOpenLogicalChannelResponse
 import android.telephony.TelephonyManager
 import im.angry.openeuicc.util.*
-import net.typeblog.lpac_jni.LocalProfileAssistant
 import net.typeblog.lpac_jni.ApduInterface
-import net.typeblog.lpac_jni.impl.HttpInterfaceImpl
-import net.typeblog.lpac_jni.impl.LocalProfileAssistantImpl
 
 class TelephonyManagerApduInterface(
     private val port: UiccPortInfoCompat,
@@ -55,13 +52,3 @@ class TelephonyManagerApduInterface(
     }
 
 }
-
-class TelephonyManagerChannel(
-    port: UiccPortInfoCompat,
-    private val tm: TelephonyManager
-) : EuiccChannel(port) {
-    override val lpa: LocalProfileAssistant = LocalProfileAssistantImpl(
-        TelephonyManagerApduInterface(port, tm),
-        HttpInterfaceImpl()
-    )
-}

app/src/main/java/im/angry/openeuicc/service/OpenEuiccService.kt

@@ -104,9 +104,9 @@ class OpenEuiccService : EuiccService(), OpenEuiccContextMarker {
         return GetDefaultDownloadableSubscriptionListResult(RESULT_OK, arrayOf())
     }
 
-    override fun onGetEuiccProfileInfoList(slotId: Int): GetEuiccProfileInfoListResult? {
+    override fun onGetEuiccProfileInfoList(slotId: Int): GetEuiccProfileInfoListResult {
         Log.i(TAG, "onGetEuiccProfileInfoList slotId=$slotId")
-        val channel = findChannel(slotId) ?: return null
+        val channel = findChannel(slotId)!!
         val profiles = channel.lpa.profiles.operational.map {
             EuiccProfileInfo.Builder(it.iccid).apply {
                 setProfileName(it.name)

app/src/main/java/im/angry/openeuicc/ui/LuiActivity.kt

@@ -10,10 +10,10 @@ class LuiActivity : AppCompatActivity() {
         super.onStart()
         setContentView(R.layout.activity_lui)
 
-        findViewById<View>(R.id.lui_skip).setOnClickListener { finish() }
+        requireViewById<View>(R.id.lui_skip).setOnClickListener { finish() }
         // TODO: Deactivate LuiActivity if there is no eSIM found.
         // TODO: Support pre-filled download info (from carrier apps); UX
-        findViewById<View>(R.id.lui_download).setOnClickListener {
+        requireViewById<View>(R.id.lui_download).setOnClickListener {
             startActivity(Intent(this, DirectProfileDownloadActivity::class.java))
         }
     }

app/src/main/java/im/angry/openeuicc/ui/PrivilegedEuiccManagementFragment.kt

@@ -17,7 +17,7 @@ class PrivilegedEuiccManagementFragment: EuiccManagementFragment() {
     override suspend fun onCreateFooterViews(parent: ViewGroup): List<View> =
         if (channel.isMEP) {
             val view = layoutInflater.inflate(R.layout.footer_mep, parent, false)
-            view.findViewById<Button>(R.id.footer_mep_slot_mapping).setOnClickListener {
+            view.requireViewById<Button>(R.id.footer_mep_slot_mapping).setOnClickListener {
                 (requireActivity() as PrivilegedMainActivity).showSlotMappingFragment()
             }
             listOf(view)

app/src/main/java/im/angry/openeuicc/ui/SlotMappingFragment.kt

@@ -51,12 +51,12 @@ class SlotMappingFragment: BaseMaterialDialogFragment(),
         savedInstanceState: Bundle?
     ): View? {
         val view = inflater.inflate(R.layout.fragment_slot_mapping, container, false)
-        toolbar = view.findViewById(R.id.toolbar)
+        toolbar = view.requireViewById(R.id.toolbar)
         toolbar.inflateMenu(R.menu.fragment_slot_mapping)
-        recyclerView = view.findViewById(R.id.mapping_list)
+        recyclerView = view.requireViewById(R.id.mapping_list)
         recyclerView.layoutManager =
             LinearLayoutManager(view.context, LinearLayoutManager.VERTICAL, false)
-        helpTextView = view.findViewById(R.id.mapping_help)
+        helpTextView = view.requireViewById(R.id.mapping_help)
         return view
     }
 
@@ -148,8 +148,8 @@ class SlotMappingFragment: BaseMaterialDialogFragment(),
         }
 
     inner class ViewHolder(root: View): RecyclerView.ViewHolder(root), OnItemSelectedListener {
-        private val textViewLogicalSlot: TextView = root.findViewById(R.id.slot_mapping_logical_slot)
+        private val textViewLogicalSlot: TextView = root.requireViewById(R.id.slot_mapping_logical_slot)
-        private val spinnerPorts: Spinner = root.findViewById(R.id.slot_mapping_ports)
+        private val spinnerPorts: Spinner = root.requireViewById(R.id.slot_mapping_ports)
 
         init {
             spinnerPorts.adapter = ArrayAdapter(requireContext(), im.angry.openeuicc.common.R.layout.spinner_item, portsDesc)

app/src/main/java/im/angry/openeuicc/util/PrivilegedTelephonyCompat.kt

@@ -95,9 +95,9 @@ fun TelephonyManager.iccOpenLogicalChannelByPortCompat(
     slotIndex: Int, portIndex: Int, aid: String?, p2: Int
 ): IccOpenLogicalChannelResponse =
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-        iccOpenLogicalChannelByPort(slotIndex, portIndex, aid, p2)
+        iccOpenLogicalChannelByPort(slotIndex, portIndex, aid, p2)!!
     } else {
-        iccOpenLogicalChannelBySlot(slotIndex, aid, p2)
+        iccOpenLogicalChannelBySlot(slotIndex, aid, p2)!!
     }
 
 fun TelephonyManager.iccCloseLogicalChannelByPortCompat(