关闭后重新显示对话框

Question

如何在每次关闭后重新显示相同的对话框？ 我的代码(在 Kotlin 中)：

val alertDialog = AlertDialog.Builder(this)
alertDialog.setMessage(getString(R.string.alert_dialog_main_activity))
val editText = EditText(this)
editText.inputType = InputType.TYPE_CLASS_PHONE
alertDialog.run {
setView(editText)
setOnDismissListener { TODO( "Re-show dialog" }
setPositiveButton("Done", { dialogInterface, i ->
run {
toast(editText.text.toString())
PreferenceManager.getDefaultSharedPreferences(applicationContext).edit().putInt("phoneNumber", editText.text.toString().toInt()).commit()
}
})
show()
}

答案也可能在Java中。

Answer 1

最简单的方法可能是调用显示对话框的函数，如下所示：

fun showDialog() {
val alertDialog = AlertDialog.Builder(this)
alertDialog.setMessage(getString(R.string.alert_dialog_main_activity))
val editText = EditText(this)
editText.inputType = InputType.TYPE_CLASS_PHONE
alertDialog.run {
setView(editText)
setOnDismissListener {
showDialog() // recall the function
}
setPositiveButton("Done", { dialogInterface, i -> {
toast(editText.text.toString())
PreferenceManager.getDefaultSharedPreferences(applicationContext).edit().putInt("phoneNumber", editText.text.toString().toInt()).commit()
}
})
show()
}
}

Answer 2

试试这个：

AlertDialog.Builder(this).apply {
setMessage(getString(R.string.alert_dialog_main_activity))
setView(editText)
setOnDismissListener {
if(/*TODO validate phone number*/)
(it as AlertDialog).show()
}
setPositiveButton("Done", { dialogInterface, i ->
toast(editText.text.toString())
PreferenceManager.getDefaultSharedPreferences(applicationContext).edit().putInt("phoneNumber", editText.text.toString().toInt()).commit()
})
show()
}