π 4λ¨κ³ - μ₯λ°κ΅¬λ(μλ) #126
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| private val _items = mutableStateListOf<CartItem>() | ||
| val items: SnapshotStateList<CartItem> get() = _items |
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StateListμ SnapshotListλ‘ λ³κ²½νμ μ΄μ κ° λ¬΄μμΈκ°μ?
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μ λ² λ―Έμ μμ #122 (comment) μ½λ§¨νΈλ₯Ό μμ±νλλ° λ΅λ³μ΄ κ°λ₯νμ€κΉμ?
| IconButton( | ||
| onClick = onClickRemoveOne, | ||
| modifier = Modifier.size(42.dp) | ||
| ) { | ||
| Text( | ||
| text = "-", | ||
| fontSize = 22.sp, | ||
| fontWeight = FontWeight.Bold | ||
| ) | ||
| } |
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+ λ²νΌκ³Ό - λ²νΌμ 곡ν΅μ μ΄ λ§μ κ² κ°μ΅λλ€.
λ°λ³΅λλ λ·°λ₯Ό μ¬μ¬μ©ν μ μλλ‘ κ°μ ν΄λ³΄λ©΄ μ΄λ¨κΉμ?
| ProductCount( | ||
| count = 2, | ||
| onClickAddOne = {}, | ||
| onClickRemoveOne = {} | ||
| ) |
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Previewμλ Interactive modeλΌλ κΈ°λ₯μ μ 곡νκ³ μμ΅λλ€.
Interactive modeλ₯Ό ν΅ν΄ + λ²νΌκ³Ό - λ²νΌμ΄ μ λμνλμ§ νμΈν μ μλλ‘ κ°μ ν΄λ³΄λ©΄ μ΄λ¨κΉμ?
| import androidx.compose.ui.unit.sp | ||
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| @Composable | ||
| fun ProductCount( |
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μ₯λ°κ΅¬λ νλ©΄μμλ ProductCountλ₯Ό μ¬μ©νκ³ μλλ°μ.
μ₯λ°κ΅¬λ νλ©΄μμ μνμ μ κ±°νκ² λλ©΄ μνμ μ΄ν©μ΄ κ°±μ λμ§ μλ κ² κ°μ΅λλ€.
μ₯λ°κ΅¬λ νλ©΄μμ μνμ μ κ±°νμ κ²½μ° μνμ μ΄ν©μ΄ κ°±μ λ μ μλλ‘ κ°μ ν΄λ³΄λ©΄ μ΄λ¨κΉμ?
μλ νμΈμ! μ₯λ°κ΅¬λ 4λ¨κ³ κ³Όμ μ μΆμ΄ λ¦μλ€μγ γ μ λΆνλ립λλ€!