Avoid some analyser warnings

app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt

@@ -712,9 +712,9 @@ class BaresipService: Service() {
                 if (aecAvailable) {
                     aec = AcousticEchoCanceler.create(recorderSessionId)
                     if (aec != null) {
-                        if (!aec!!.getEnabled()) {
+                        if (!aec!!.enabled) {
-                            aec!!.setEnabled(true)
+                            aec!!.enabled = true
-                            if (aec!!.getEnabled())
+                            if (aec!!.enabled)
                                 Log.d(TAG, "AEC is enabled")
                             else
                                 Log.w(TAG, "Failed to enable AEC")
@@ -727,9 +727,9 @@ class BaresipService: Service() {
                 if (agcAvailable) {
                     agc = AutomaticGainControl.create(recorderSessionId)
                     if (agc != null) {
-                        if (!agc!!.getEnabled()) {
+                        if (!agc!!.enabled) {
-                            agc!!.setEnabled(true)
+                            agc!!.enabled = true
-                            if (agc!!.getEnabled())
+                            if (agc!!.enabled)
                                 Log.d(TAG, "AGC is enabled")
                         }
                     } else
@@ -738,9 +738,9 @@ class BaresipService: Service() {
                 if (nsAvailable) {
                     ns = NoiseSuppressor.create(recorderSessionId)
                     if (ns != null) {
-                        if (!ns!!.getEnabled()) {
+                        if (!ns!!.enabled) {
-                            ns!!.setEnabled(true)
+                            ns!!.enabled = true
-                            if (ns!!.getEnabled())
+                            if (ns!!.enabled)
                                 Log.d(TAG, "NS is enabled")
                         }
                     } else

app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt

@@ -20,7 +20,6 @@ import android.widget.Chronometer
 import android.widget.Toast
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
-import androidx.annotation.RequiresApi
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.compose.animation.animateContentSize
 import androidx.compose.foundation.BorderStroke
@@ -240,7 +239,6 @@ private fun MainScreen(
         }
     }
 
-    @RequiresApi(29)
     fun launchBackupRequest() {
         if (Build.VERSION.SDK_INT < 29) {
             if (!Utils.checkPermissions(ctx, arrayOf(WRITE_EXTERNAL_STORAGE))) {
@@ -284,7 +282,6 @@ private fun MainScreen(
         }
     }
     
-    @RequiresApi(29)
     fun launchRestoreRequest() {
         if (Build.VERSION.SDK_INT < 29) {
             if (!Utils.checkPermissions(ctx, arrayOf(READ_EXTERNAL_STORAGE))) {
@@ -1308,7 +1305,7 @@ private fun CallRow(ctx: Context, viewModel: ViewModel) {
                 onClick = {
                     showSuggestions.value = false
                     abandonAudioFocus(ctx)
-                    var ua: UserAgent = UserAgent.ofAor(viewModel.selectedAor.value)!!
+                    val ua: UserAgent = UserAgent.ofAor(viewModel.selectedAor.value)!!
                     val call = ua.currentCall()
                     if (call != null) {
                         val callp = call.callp
@@ -2418,7 +2415,7 @@ fun callAction(ctx: Context, viewModel: ViewModel, uri: Uri?, action: String) {
     Log.d(TAG, "Action $action to $uri")
     if (uri != null) {
         var uriStr: String
-        var uap = 0L
+        var uap: Long
         when (uri.scheme) {
             "sip" -> {
                 uriStr = Utils.uriUnescape(uri.toString())