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android { defaultConfig { buildConfigField "long", "TIMESTAMP", System.currentTimeMillis() + "L" } } Log.i("TIMESTAMP", BuildConfig.TIMESTAMP.toString())
val array = Array() val arrayList = array.toCollection(ArrayList())
val arrayList = ArrayList() val array = arrayList.toTypeArray() ex) items : Array list : ArrayList items = list.toArray(arrayOfNulls(list.size))
val builder = NotificationCompat.Builder(this, "YOUR_CHANNEL_ID") builder.setShowWhen(false)
ex) xxxxxx as CustomTextView -> xxxxxx as CustomTextView? from Null to Non Null Casting error
val intent = Intent(Intent.ACTION_DIAL, Uri.parse("tel:01012345678")) startActivity(intent) 전화를 직접 거는게 아니라서 퍼미션은 필요없음
val layoutParams = binding.iv.layoutParams layoutParams.width = pixelValue layoutParams.height = pixelValue binding.iv.layoutParams = layoutParams