01. Compose 可组合组件之Row And Column
02. Compose 可组合组件之 属性 modifier
03. Compose 可组合组件之Card 图片
04. Compose 字体
05. Compose State
06. Compose SnackBar
07. Compose List
class ListActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContent {
CreateItems()
}
}
@Composable
private fun CreateItemsOne(){
val painter1 = painterResource(id = R.drawable.sheep)
val painter2 = painterResource(id = R.drawable.ic_launcher_background)
LazyColumn(
verticalArrangement = Arrangement.spacedBy(12.dp),
contentPadding = PaddingValues(start = 16.dp, end = 16.dp)
) {
itemsIndexed(
listOf(
"Android",
"Java",
"C",
"C++",
"Python",
"Go",
"Php",
"Kotlin",
"Flutter",
"C#",
"Android",
"Java",
"C",
"C++",
"Python",
"Go",
"Php",
"Kotlin",
"Flutter",
"C#",
"Android",
"Java",
"C",
"C++",
"Python",
"Go",
"Php",
"Kotlin",
"Flutter",
"C#",
"Android",
"Java",
"C",
"C++",
"Python",
"Go",
"Php",
"Kotlin",
"Flutter",
"C#",
),
) { index: Int, item: String ->
Row(
modifier = Modifier
.fillMaxWidth()
.background(color = Color.Gray),
verticalAlignment = Alignment.CenterVertically
) {
Image(
modifier = Modifier
.padding(top = 16.dp)
.height(100.dp)
.width(100.dp),
painter = if (index % 2 == 0) painter1 else painter2,
contentDescription = ""
)
Text(
text = " $item",
fontSize = 20.sp,
fontWeight = FontWeight.Bold,
textAlign = TextAlign.Center,
modifier = Modifier
.fillMaxWidth()
.padding(16.dp)
)
}
}
}
}
@Composable
private fun CreateItems() {
val painter1 = painterResource(id = R.drawable.sheep)
val painter2 = painterResource(id = R.drawable.ic_launcher_background)
LazyColumn() {
items(200) {
Column() {
Text(
text = "Item $it",
fontSize = 20.sp,
fontWeight = FontWeight.Bold,
textAlign = TextAlign.Center,
modifier = Modifier
.fillMaxWidth()
.padding(16.dp)
)
Image(
modifier = Modifier
.padding(top = 16.dp)
.fillMaxWidth(),
painter = if (it % 2 == 0) painter1 else painter2,
contentDescription = ""
)
}
}
}
}
}
