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val soundUri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + applicationContext.packageName + "/" + R.raw.d39push1) val notificationBuilder = NotificationCompat.Builder(this, channelId) .setSound(soundUri) if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { val importance = NotificationManager.IMPORTANCE_DEFAULT val notificationChannel = NotificationChannel(channelId, "Notice", i..

let alertTitleStr = "alert title" let alertMessageStr = "alert message" let actionStr = "action" let cancelStr = "cancel" let destructiveStr = "destructive" let alert = UIAlertController(title: alertTitleStr, message: alertMessageStr, preferredStyle: .alert) alert.addAction(UIAlertAction(title: actionStr, style: .default, handler: { UIAlertAction in print(actionStr) })) alert.addAction(UIAlertAc..

terminal) adb tcpip 5555 adb connect ***.***.*.**:5555

android:layout_width="0dp" or android:layout_height="0dp" app:layout_constraintDimensionRatio="***:***" example)

let number = 300 switch number { case 100 : print("백", "number = \(number)", separator: ", ") case 200 : print("이백", "number = \(number)", separator: ", ") case 300 : print("삼백", "number = \(number)", separator: ", ") case 400 : print("사백", "number = \(number)", separator: ", ") case 500 : print("오백", "number = \(number)", separator: ", ") case 600, 700, 800, 900 : print("육백, 칠백, 팔백, 구백", "numbe..

enum characters : Character { case a = "A" // a, raw value : A case b = "B" // b, raw value : B case c = "C" // c, raw value : C case d // error : Enum cases require explicit raw values when the raw type is not expressible by integer or string literal } enum strings : String { case a = "A" // a, raw value : A case b // b, raw value : b case c = "C" // c, raw value : C }

android:maxLines="1" android:ellipsize="end"

run command + r add editor on right control + command + t

// closure - sort import UIKit var sports = ["foot ball", "tenis", "table tenis", "wrestle", "base ball"] sports.sort { $0 $1 } print(sports) // result : ["wrestle", "tenis", "table tenis", "foot ball", "base ball"] sports.sort (by : { $0 < $1 }) print(sports) // result : ["base ball..