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colorList 에서 빨간줄이 ...
23.12.14 09:21 작성 조회수 103
0
언제나 수고많으신 강사님
늘 건강하시고 부자되세요
실행 후 아래와 같은 오류가 발생합니다
import android.graphics.Color
import android.util.Size
import androidx.compose.foundation.Canvas
import androidx.compose.foundation.layout.BoxWithConstraints
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import com.dongguntech.compose_navi_graphes.ui.theme.Compose_Navi_GraphesTheme
@Composable
fun Graph2() {
GraphPie()
}
@Composable
fun GraphPie() {
val pieSize1 = 25f
val pieSize2 = 75f
val colorList = listOf(Color.RED, Color.BLUE)
PieChart(
pieSize1,
pieSize2,
colorList,
)
}
@Composable
fun PieChart(
pieSize1 : Float,
pieSize2 : Float,
colorList : List<Color>
) {
val totalSize = pieSize1 + pieSize2
BoxWithConstraints(
modifier = Modifier.padding(20.dp)
) {
val pieDetailSize = constraints.maxWidth.toFloat()
Canvas(modifier = Modifier.size(pieDetailSize.dp)){
val sweep1 = 360 * (pieSize1 / totalSize)
drawArc(
color = colorList[0],
startAngle = 0f,
sweepAngle = sweep1,
useCenter = true,
size = Size(pieDetailSize, pieDetailSize)
)
val sweep2 = 360 * (pieSize2 / totalSize)
drawArc(
color = colorList[1],
startAngle = sweep1,
sweepAngle = sweep2,
useCenter = true,
size = Size(pieDetailSize, pieDetailSize)
)
}
}
}
@Preview(showBackground = true)
@Composable
fun Graph2Preview() {
Compose_Navi_GraphesTheme {
Graph2()
}
}
위 코드중에서 아래 캡쳐화면부분중에서
colorList 에서 빨간줄 이 생기네요
또 실행하면 아래와 같은 오류가 발생합니다
답변을 작성해보세요.
1
shafeel2
질문자2023.12.15
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.geometry.Size
위와 같이 import 하니 빨간줄이 사라졌네요
늘 강사님 건강하시고 부자되세요
0
개복치개발자
지식공유자2023.12.14
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import com.example.myapplication.ui.theme.MyApplicationTheme
import androidx.compose.foundation.Canvas
import androidx.compose.foundation.layout.BoxWithConstraints
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.geometry.Size
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.unit.dp
@Composable
fun Graph2() {
GraphPie()
}
@Composable
fun GraphPie() {
val pieSize1 = 25f
val pieSize2 = 75f
val colorList = listOf(Color.Red, Color.Blue)
PieChart(
pieSize1,
pieSize2,
colorList,
)
}
@Composable
fun PieChart(
pieSize1 : Float,
pieSize2 : Float,
colorList : List<Color>
) {
val totalSize = pieSize1 + pieSize2
BoxWithConstraints(
modifier = Modifier.padding(20.dp)
) {
val pieDetailSize = constraints.maxWidth.toFloat()
Canvas(modifier = Modifier.size(pieDetailSize.dp)){
val sweep1 = 360 * (pieSize1 / totalSize)
drawArc(
color = colorList[0],
startAngle = 0f,
sweepAngle = sweep1,
useCenter = true,
size = Size(pieDetailSize,pieDetailSize)
)
val sweep2 = 360 * (pieSize2 / totalSize)
drawArc(
color = colorList[1],
startAngle = sweep1,
sweepAngle = sweep2,
useCenter = true,
size = Size(pieDetailSize, pieDetailSize)
)
}
}
}
이 코드와 비교해서 한번 해보시겠어요?
답변 2