refactor: sim toolkit

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

@@ -24,9 +24,8 @@ class UnprivilegedEuiccManagementFragment : EuiccManagementFragment() {
         super.onCreateOptionsMenu(menu, inflater)
         inflater.inflate(R.menu.fragment_sim_toolkit, menu)
         menu.findItem(R.id.open_sim_toolkit).apply {
-            val slot = stk[slotId]
-            if (slot == null) return@apply
-            isVisible = true
+            val slot = stk[slotId] ?: return@apply
+            isVisible = slot.available
             setOnMenuItemClickListener { slot.launch() }
         }
     }

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

@@ -39,6 +39,9 @@ class SIMToolkit(private val context: Context) {
             get() = packageNames.flatMap(context.packageManager::getActivities)
                 .filter { it.exported }.map { ComponentName(it.packageName, it.name) }
 
+        val available: Boolean
+            get() = getIntent() != null || getDisabledPackageName() != null
+
         private fun getIntent(): Intent? {
             try {
                 val component = components.find(activities::contains) ?: return launchIntent