Trying to prevent crashes seen on Crashlytics

app/src/main/java/org/linphone/activities/assistant/fragments/RemoteProvisioningFragment.kt

@@ -76,6 +76,8 @@ class RemoteProvisioningFragment : GenericFragment<AssistantRemoteProvisioningFr
 
     override fun onDestroy() {
         super.onDestroy()
-        sharedViewModel.remoteProvisioningUrl.value = null
+        if (this::sharedViewModel.isInitialized) {
+            sharedViewModel.remoteProvisioningUrl.value = null
+        }
     }
 }

app/src/main/java/org/linphone/activities/main/contact/viewmodels/ContactEditorViewModel.kt

@@ -89,12 +89,15 @@ class ContactEditorViewModel(val c: Friend?) : ViewModel(), ContactDataInterface
 
         if (contact == null) {
             created = true
-            val nativeId = if (PermissionHelper.get().hasWriteContactsPermission()) {
+            // From Crashlytics it seems both permissions are required...
+            val nativeId = if (PermissionHelper.get().hasReadContactsPermission() &&
+                PermissionHelper.get().hasWriteContactsPermission()
+            ) {
                 Log.i("[Contact Editor] Creating native contact")
                 NativeContactEditor.createAndroidContact(syncAccountName, syncAccountType)
                     .toString()
             } else {
-                Log.e("[Contact Editor] Can't native contact, permission denied")
+                Log.e("[Contact Editor] Can't create native contact, permission denied")
                 null
             }
             contact = coreContext.core.createFriend()

app/src/main/java/org/linphone/activities/main/dialer/fragments/DialerFragment.kt

@@ -349,9 +349,14 @@ class DialerFragment : SecureFragment<DialerFragmentBinding>() {
 
         viewModel.showOkButton(
             {
-                val browserIntent = Intent(Intent.ACTION_VIEW, Uri.parse(url))
+                try {
-                startActivity(browserIntent)
+                    val browserIntent = Intent(Intent.ACTION_VIEW, Uri.parse(url))
-                dialog.dismiss()
+                    startActivity(browserIntent)
+                } catch (ise: IllegalStateException) {
+                    Log.e("[Dialer] Can't start ACTION_VIEW intent, IllegalStateException: $ise")
+                } finally {
+                    dialog.dismiss()
+                }
             },
             getString(R.string.dialog_ok)
         )

app/src/main/java/org/linphone/contact/ContactAvatarView.kt

@@ -51,7 +51,10 @@ class ContactAvatarView : LinearLayout {
         )
     }
 
-    fun setData(data: ContactDataInterface) {
+    fun setData(data: ContactDataInterface?) {
+        // From Crashlytics it seems this function can be called with null parameter...
+        data ?: return
+
         val contact = data.contact.value
         val initials = if (contact != null) {
             AppUtils.getInitials(contact.name ?: "")

app/src/main/java/org/linphone/contact/ContactLoader.kt

@@ -93,7 +93,8 @@ class ContactLoader : LoaderManager.LoaderCallbacks<Cursor> {
 
             withContext(Dispatchers.IO) {
                 try {
-                    while (!cursor.isClosed && cursor.moveToNext()) {
+                    // Cursor can be null now that we are on a different dispatcher according to Crashlytics
+                    while (cursor != null && !cursor.isClosed && cursor.moveToNext()) {
                         try {
                             val id: String =
                                 cursor.getString(cursor.getColumnIndexOrThrow(ContactsContract.Data.CONTACT_ID))
@@ -224,6 +225,8 @@ class ContactLoader : LoaderManager.LoaderCallbacks<Cursor> {
                     Log.e("[Contacts Loader] State Data Exception: $sde")
                 } catch (ise: IllegalStateException) {
                     Log.e("[Contacts Loader] Illegal State Exception: $ise")
+                } catch (e: Exception) {
+                    Log.e("[Contacts Loader] Exception: $e")
                 } finally {
                     cancel()
                 }

app/src/main/java/org/linphone/utils/DataBindingUtils.kt

@@ -203,14 +203,15 @@ fun setEditTextOnFocusChangeVisibilityOf(editText: EditText, view: View) {
 }
 
 @BindingAdapter("selectedIndex", "settingListener")
-fun spinnerSetting(spinner: Spinner, selectedIndex: Int, listener: SettingListener) {
+fun spinnerSetting(spinner: Spinner, selectedIndex: Int, listener: SettingListener?) {
     spinner.setSelection(selectedIndex, true)
 
     spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
         override fun onNothingSelected(parent: AdapterView<*>?) {}
 
         override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
-            listener.onListValueChanged(position)
+            // From Crashlytics it seems this method may be called with a null listener
+            listener?.onListValueChanged(position)
         }
     }
 }

app/src/main/java/org/linphone/utils/LinphoneUtils.kt

@@ -47,11 +47,13 @@ class LinphoneUtils {
                     account.params.identityAddress?.asStringUriOnly() == address.asStringUriOnly()
                 }
                 val localDisplayName = account?.params?.identityAddress?.displayName
-                if (localDisplayName != null) {
+                // Do not return an empty local display name
+                if (localDisplayName != null && localDisplayName.isNotEmpty()) {
                     return localDisplayName
                 }
             }
-            return address.displayName ?: address.username ?: ""
+            // Do not return an empty display name
+            return address.displayName ?: address.username ?: address.asString()
         }
 
         fun getDisplayableAddress(address: Address?): String {