在下面的代碼中，它立即回傳 true 并忽略 AlertDialog 的結果...
我正在嘗試創建一個函式來生成回傳布林值的 AlertDialogs，并且我想在程式的其他地方使用該函式。
fun showTwoButtonDialog(
theContext: Context,
theTitle: String = "Yes or no?",
theMessage: String,
): Boolean {
var a = true
AlertDialog.Builder(theContext)
.setTitle(theTitle)
.setMessage(theMessage)
.setPositiveButton("Yes") { _, _ ->
a = true
}
.setNegativeButton("No") { _, _ ->
a = false
}.show()
return a
}
uj5u.com熱心網友回復：
您可以為此使用功能
fun showTwoButtonDialog(
theContext: Context,
theTitle: String = "Yes or no?",
theMessage: String,
resultBoolean: (Boolean) -> Unit
) {
AlertDialog.Builder(theContext)
.setTitle(theTitle)
.setMessage(theMessage)
.setPositiveButton("Yes") { _, _ ->
resultBoolean(true)
}
.setNegativeButton("No") { _, _ ->
resultBoolean(false)
}.show()
}
函式呼叫
showTwoButtonDialog(this,"Title","Message") { result->
if(result){
//Do whatever with result
}
}
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