wbrawner/Simple-Calculator
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make lastOperation non nullable

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tibbi 2020-11-06 17:18:19 +01:00
parent 6504233dd2
commit 7b82f163a8
1 changed files with 5 additions and 5 deletions
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10
app/src/main/kotlin/com/simplemobiletools/calculator/helpers/CalculatorImpl.kt
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@ -12,13 +12,13 @@ class CalculatorImpl(calculator: Calculator, val context: Context) {
var displayedFormula: String? = null
var lastKey: String? = null
private var inputDisplayedFormula = "0"
private var lastOperation: String? = null
private var callback: Calculator? = calculator
private var isFirstOperation = false
private var resetValue = false
private var baseValue = 0.0
private var secondValue = 0.0
private var lastOperation = ""
private val operations = listOf("+", "-", "*", "/", "^", "%", "√")
private val operationsRegex = "[+,-,*,/,^,%,√]".toRegex()
private var moreOperationsInRaw = false
@ -129,7 +129,7 @@ class CalculatorImpl(calculator: Calculator, val context: Context) {
baseValue = 1.0
}
val operation = OperationFactory.forId(lastOperation!!, baseValue, secondValue)
val operation = OperationFactory.forId(lastOperation, baseValue, secondValue)
if (operation != null) {
try {
updateResult(operation.getResult())
@ -174,7 +174,7 @@ class CalculatorImpl(calculator: Calculator, val context: Context) {
}
}
if (lastKey == DIGIT && !lastOperation.isNullOrEmpty() && operation == PERCENT) {
if (lastKey == DIGIT && lastOperation != "" && operation == PERCENT) {
val tempOperation = lastOperation
handlePercent()
lastKey = tempOperation
@ -199,7 +199,7 @@ class CalculatorImpl(calculator: Calculator, val context: Context) {
}
private fun handlePercent() {
val operation = PercentOperation(baseValue, getSecondValue(), lastOperation ?: "")
val operation = PercentOperation(baseValue, getSecondValue(), lastOperation)
val result = operation.getResult()
setFormula("${baseValue.format()}${getSign(lastOperation)}${getSecondValue().format()}%")
secondValue = result
@ -302,7 +302,7 @@ class CalculatorImpl(calculator: Calculator, val context: Context) {
}
}
private fun getSign(lastOperation: String?) = when (lastOperation) {
private fun getSign(lastOperation: String) = when (lastOperation) {
PLUS -> "+"
MINUS -> "-"
MULTIPLY -> "*"