msfjarvis/compose-lobsters
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Borrow some improvements from my previous attempt

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Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>
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Harsh Shandilya 2020-08-30 16:46:57 +05:30
parent 0c3b1d388f
commit bd6f7583c8
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GPG key ID: 366D7BBAD1031E80
1 changed files with 8 additions and 11 deletions
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19
app/src/main/java/dev/msfjarvis/todo/MainActivity.kt
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@ -10,11 +10,8 @@ import androidx.compose.material.MaterialTheme
import androidx.compose.material.Scaffold
import androidx.compose.material.TopAppBar
import androidx.compose.runtime.Composable
import androidx.compose.runtime.State
import androidx.compose.runtime.collectAsState
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.rememberCoroutineScope
import androidx.compose.ui.Modifier
import androidx.compose.ui.platform.setContent
@ -36,8 +33,9 @@ class MainActivity : AppCompatActivity() {
TodoTheme {
val coroutineScope = rememberCoroutineScope()
val itemsDao = Graph.database.todoItemsDao()
val items by itemsDao.getAllItems().collectAsState(initial = emptyList())
TodoApp(
itemsDao.getAllItems().collectAsState(initial = emptyList()),
items,
{ item -> coroutineScope.launch { itemsDao.insert(item) } },
{ item -> coroutineScope.launch { itemsDao.delete(item) } },
)
@ -48,17 +46,16 @@ class MainActivity : AppCompatActivity() {
@Composable
fun TodoApp(
items: State<List<TodoItem>>,
items: List<TodoItem>,
onAdd: (item: TodoItem) -> Unit,
onDelete: (item: TodoItem) -> Unit,
) {
val realItems by items
Scaffold(
topBar = { TopAppBar({ Text(text = "I can Compose?") }) },
floatingActionButton = {
FloatingActionButton(
onClick = { onAdd.invoke(TodoItem("Item ${realItems.size + 1}")) },
onClick = { onAdd.invoke(TodoItem("Item ${items.size + 1}")) },
elevation = 8.dp,
modifier = Modifier.semantics { testTag = "fab" }
) {
@ -70,7 +67,7 @@ fun TodoApp(
},
bodyContent = {
LazyColumnFor(
items = realItems,
items = items,
modifier = Modifier.padding(horizontal = 16.dp)
) { todoItem ->
TodoRowItem(item = todoItem) { onDelete.invoke(todoItem) }
@ -83,11 +80,11 @@ fun TodoApp(
@Composable
fun PreviewApp() {
TodoTheme {
val items = remember { mutableStateOf(listOf(TodoItem("Item 1"))) }
val items = arrayListOf(TodoItem("Item 1"))
TodoApp(
items,
{},
{},
items::add,
items::remove,
)
}
}