upgrade kotlin to 1.5.0 (#2162)

* upgrade kotlin to 1.5.0

* don't explicitly set kotlin jvmtarget

app/build.gradle

@@ -83,9 +83,6 @@ android {
             enableSplit = false
         }
     }
-    kotlinOptions {
-        jvmTarget = '1.8'
-    }
 }
 
 ext.lifecycleVersion = "2.2.0"

app/src/main/java/com/keylesspalace/tusky/adapter/EmojiAdapter.kt

@@ -30,7 +30,7 @@ class EmojiAdapter(
 ) : RecyclerView.Adapter<BindingHolder<ItemEmojiButtonBinding>>() {
 
     private val emojiList : List<Emoji> = emojiList.filter { emoji -> emoji.visibleInPicker == null || emoji.visibleInPicker }
-            .sortedBy { it.shortcode.toLowerCase(Locale.ROOT) }
+            .sortedBy { it.shortcode.lowercase(Locale.ROOT) }
 
     override fun getItemCount() = emojiList.size
 

app/src/main/java/com/keylesspalace/tusky/components/compose/ComposeViewModel.kt

@@ -351,11 +351,11 @@ class ComposeViewModel @Inject constructor(
             ':' -> {
                 val emojiList = emoji.value ?: return emptyList()
 
-                val incomplete = token.substring(1).toLowerCase(Locale.ROOT)
+                val incomplete = token.substring(1).lowercase(Locale.ROOT)
                 val results = ArrayList<ComposeAutoCompleteAdapter.AutocompleteResult>()
                 val resultsInside = ArrayList<ComposeAutoCompleteAdapter.AutocompleteResult>()
                 for (emoji in emojiList) {
-                    val shortcode = emoji.shortcode.toLowerCase(Locale.ROOT)
+                    val shortcode = emoji.shortcode.lowercase(Locale.ROOT)
                     if (shortcode.startsWith(incomplete)) {
                         results.add(ComposeAutoCompleteAdapter.EmojiResult(emoji))
                     } else if (shortcode.indexOf(incomplete, 1) != -1) {

app/src/main/java/com/keylesspalace/tusky/db/AccountManager.kt

@@ -65,7 +65,7 @@ class AccountManager @Inject constructor(db: AppDatabase) {
 
         val maxAccountId = accounts.maxByOrNull { it.id }?.id ?: 0
         val newAccountId = maxAccountId + 1
-        activeAccount = AccountEntity(id = newAccountId, domain = domain.toLowerCase(Locale.ROOT), accessToken = accessToken, isActive = true)
+        activeAccount = AccountEntity(id = newAccountId, domain = domain.lowercase(Locale.ROOT), accessToken = accessToken, isActive = true)
 
     }
 

app/src/main/java/com/keylesspalace/tusky/util/CustomEmojiHelper.kt

@@ -31,8 +31,6 @@ import com.keylesspalace.tusky.entity.Emoji
 
 import java.lang.ref.WeakReference
 import java.util.regex.Pattern
-import androidx.preference.PreferenceManager
-import com.keylesspalace.tusky.settings.PrefKeys
 
 /**
  * replaces emoji shortcodes in a text with EmojiSpans

build.gradle

@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.4.31'
+    ext.kotlin_version = '1.5.0'
     repositories {
         google()
         jcenter()