fix percent crash

Darkempire78 · Aug 15, 2022 · e3f73af · e3f73af
1 parent f161cbc
commit e3f73af
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/app/src/main/java/com/darkempire78/opencalculator/MainActivity.kt b/app/src/main/java/com/darkempire78/opencalculator/MainActivity.kt
@@ -282,6 +282,9 @@ class MainActivity : AppCompatActivity() {
      */
     private fun getPercentString(calculation: String): String {
         val percentPos = calculation.lastIndexOf('%')
+        if (percentPos < 1) {
+            return calculation
+        }
         // find the last operator before the last %
         val operatorBeforePercentPos = calculation.subSequence(0, percentPos - 1).lastIndexOfAny(charArrayOf('-', '+', '×', '÷', '('))
         if (operatorBeforePercentPos < 1) {