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20 changes: 12 additions & 8 deletions
20
app/src/main/java/exchange/dydx/carteraExample/MainActivity.kt
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109 changes: 109 additions & 0 deletions
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app/src/main/java/exchange/dydx/carteraExample/ModalTransitionDialog.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| package exchange.dydx.carteraexample | ||
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|
||
| import androidx.compose.animation.AnimatedVisibility | ||
| import androidx.compose.animation.AnimatedVisibilityScope | ||
| import androidx.compose.animation.core.tween | ||
| import androidx.compose.animation.slideInVertically | ||
| import androidx.compose.animation.slideOutVertically | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.LaunchedEffect | ||
| import androidx.compose.runtime.MutableState | ||
| import androidx.compose.runtime.mutableStateOf | ||
| import androidx.compose.runtime.remember | ||
| import androidx.compose.runtime.rememberCoroutineScope | ||
| import androidx.compose.ui.ExperimentalComposeUiApi | ||
| import androidx.compose.ui.window.Dialog | ||
| import androidx.compose.ui.window.DialogProperties | ||
| import kotlinx.coroutines.CoroutineScope | ||
| import kotlinx.coroutines.delay | ||
| import kotlinx.coroutines.flow.MutableSharedFlow | ||
| import kotlinx.coroutines.flow.asSharedFlow | ||
| import kotlinx.coroutines.flow.collectLatest | ||
| import kotlinx.coroutines.launch | ||
| import kotlinx.coroutines.sync.Mutex | ||
|
|
||
| object ModalTransitionDialog { | ||
| @OptIn(ExperimentalComposeUiApi::class) | ||
| @Composable | ||
| fun ModalTransitionDialog( | ||
| onDismissRequest: () -> Unit, | ||
| dismissOnBackPress: Boolean = true, | ||
| content: @Composable (ModalTransitionDialogHelper) -> Unit | ||
| ) { | ||
|
|
||
| val onCloseSharedFlow: MutableSharedFlow<Unit> = remember { MutableSharedFlow() } | ||
| val coroutineScope: CoroutineScope = rememberCoroutineScope() | ||
| val animateContentBackTrigger = remember { mutableStateOf(false) } | ||
| val mutex = remember { Mutex(true) } | ||
|
|
||
| LaunchedEffect(key1 = Unit) { | ||
| launch { | ||
| //delay(DIALOG_BUILD_TIME) | ||
| animateContentBackTrigger.value = true | ||
| } | ||
| launch { | ||
| onCloseSharedFlow.asSharedFlow().collectLatest { startDismissWithExitAnimation(animateContentBackTrigger, onDismissRequest) } | ||
| } | ||
| } | ||
|
|
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| Dialog( | ||
| onDismissRequest = { coroutineScope.launch { startDismissWithExitAnimation(animateContentBackTrigger, onDismissRequest) } }, | ||
| properties = DialogProperties(usePlatformDefaultWidth = false, dismissOnBackPress = dismissOnBackPress, dismissOnClickOutside = false) | ||
| ) { | ||
| LaunchedEffect(key1 = Unit) { | ||
| if (mutex.isLocked) mutex.unlock() | ||
| } | ||
|
|
||
| AnimatedModalBottomSheetTransition(visible = animateContentBackTrigger.value) { | ||
| content(ModalTransitionDialogHelper(coroutineScope, onCloseSharedFlow)) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private suspend fun startDismissWithExitAnimation( | ||
| animateContentBackTrigger: MutableState<Boolean>, | ||
| onDismissRequest: () -> Unit | ||
| ) { | ||
| animateContentBackTrigger.value = false | ||
| delay(ANIMATION_TIME) | ||
| onDismissRequest() | ||
| } | ||
|
|
||
| /** | ||
| * Helper class that can be used inside the content scope from | ||
| * composables that implement the [ModalTransitionDialog] to hide | ||
| * the [Dialog] with a modal transition animation | ||
| */ | ||
| class ModalTransitionDialogHelper( | ||
| private val coroutineScope: CoroutineScope, | ||
| private val onCloseFlow: MutableSharedFlow<Unit> | ||
| ) { | ||
| fun triggerAnimatedClose() { | ||
| coroutineScope.launch { | ||
| onCloseFlow.emit(Unit) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| internal const val ANIMATION_TIME = 500L | ||
|
|
||
| @Composable | ||
| internal fun AnimatedModalBottomSheetTransition( | ||
| visible: Boolean, | ||
| content: @Composable AnimatedVisibilityScope.() -> Unit | ||
| ) { | ||
| AnimatedVisibility( | ||
| visible = visible, | ||
| enter = slideInVertically( | ||
| animationSpec = tween(ANIMATION_TIME.toInt()), | ||
| initialOffsetY = { fullHeight -> fullHeight } | ||
| ), | ||
| exit = slideOutVertically( | ||
| animationSpec = tween(ANIMATION_TIME.toInt()), | ||
| targetOffsetY = { fullHeight -> fullHeight } | ||
| ), | ||
| content = content | ||
| ) | ||
| } | ||
| } | ||
|
|
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