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/*
* Copyright 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.compose.material3
import androidx.compose.material3.tokens.DialogTokens
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.Shape
import androidx.compose.ui.unit.Dp
import androidx.compose.ui.unit.dp
import androidx.compose.ui.window.Dialog
/**
* Material Design basic dialog.
*
* Dialogs provide important prompts in a user flow. They can require an action, communicate
* information, or help users accomplish a task.
*
* 
*
* The dialog will position its buttons, typically [TextButton]s, based on the available space.
* By default it will try to place them horizontally next to each other and fallback to horizontal
* placement if not enough space is available.
*
* Simple usage:
* @sample androidx.compose.material3.samples.AlertDialogSample
*
* Usage with a "Hero" icon:
* @sample androidx.compose.material3.samples.AlertDialogWithIconSample
*
* @param onDismissRequest called when the user tries to dismiss the Dialog by clicking outside
* or pressing the back button. This is not called when the dismiss button is clicked.
* @param confirmButton button which is meant to confirm a proposed action, thus resolving what
* triggered the dialog. The dialog does not set up any events for this button so they need to be
* set up by the caller.
* @param modifier the [Modifier] to be applied to this dialog
* @param dismissButton button which is meant to dismiss the dialog. The dialog does not set up any
* events for this button so they need to be set up by the caller.
* @param icon optional icon that will appear above the [title] or above the [text], in case a
* title was not provided.
* @param title title which should specify the purpose of the dialog. The title is not mandatory,
* because there may be sufficient information inside the [text].
* @param text text which presents the details regarding the dialog's purpose.
* @param shape defines the shape of this dialog's container
* @param containerColor the color used for the background of this dialog. Use [Color.Transparent]
* to have no color.
* @param tonalElevation when [containerColor] is [ColorScheme.surface], a translucent primary color
* overlay is applied on top of the container. A higher tonal elevation value will result in a
* darker color in light theme and lighter color in dark theme. See also: [Surface].
* @param iconContentColor the content color used for the icon.
* @param titleContentColor the content color used for the title.
* @param textContentColor the content color used for the text.
* @param properties typically platform specific properties to further configure the dialog.
*/
@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun AlertDialog(
onDismissRequest: () -> Unit,
confirmButton: @Composable () -> Unit,
modifier: Modifier = Modifier,
dismissButton: @Composable (() -> Unit)? = null,
icon: @Composable (() -> Unit)? = null,
title: @Composable (() -> Unit)? = null,
text: @Composable (() -> Unit)? = null,
shape: Shape = DialogTokens.ContainerShape.toShape(),
containerColor: Color = DialogTokens.ContainerColor.toColor(),
tonalElevation: Dp = DialogTokens.ContainerElevation,
iconContentColor: Color = DialogTokens.IconColor.toColor(),
titleContentColor: Color = DialogTokens.SubheadColor.toColor(),
textContentColor: Color = DialogTokens.SupportingTextColor.toColor(),
) {
Dialog(
onCloseRequest = onDismissRequest,
) {
AlertDialogContent(
buttons = {
AlertDialogFlowRow(
mainAxisSpacing = ButtonsMainAxisSpacing,
crossAxisSpacing = ButtonsCrossAxisSpacing
) {
dismissButton?.invoke()
confirmButton()
}
},
modifier = modifier,
icon = icon,
title = title,
text = text,
shape = shape,
containerColor = containerColor,
tonalElevation = tonalElevation,
// Note that a button content color is provided here from the dialog's token, but in
// most cases, TextButtons should be used for dismiss and confirm buttons.
// TextButtons will not consume this provided content color value, and will used their
// own defined or default colors.
buttonContentColor = DialogTokens.ActionLabelTextColor.toColor(),
iconContentColor = iconContentColor,
titleContentColor = titleContentColor,
textContentColor = textContentColor,
)
}
}
private val ButtonsMainAxisSpacing = 8.dp
private val ButtonsCrossAxisSpacing = 12.dp
