124 lines
4.4 KiB
Kotlin
124 lines
4.4 KiB
Kotlin
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.cupcake.ui
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import androidx.annotation.StringRes
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import androidx.compose.foundation.Image
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import androidx.compose.foundation.layout.Arrangement
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import androidx.compose.foundation.layout.Column
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import androidx.compose.foundation.layout.Row
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import androidx.compose.foundation.layout.Spacer
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import androidx.compose.foundation.layout.fillMaxHeight
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import androidx.compose.foundation.layout.fillMaxSize
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import androidx.compose.foundation.layout.fillMaxWidth
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import androidx.compose.foundation.layout.height
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import androidx.compose.foundation.layout.padding
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import androidx.compose.foundation.layout.width
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import androidx.compose.foundation.layout.widthIn
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import androidx.compose.material3.Button
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import androidx.compose.material3.MaterialTheme
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import androidx.compose.material3.Text
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import androidx.compose.runtime.Composable
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.res.dimensionResource
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import androidx.compose.ui.res.painterResource
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import androidx.compose.ui.res.stringResource
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import androidx.compose.ui.tooling.preview.Preview
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import androidx.compose.ui.unit.dp
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import com.example.cupcake.R
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import com.example.cupcake.data.DataSource
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/**
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* Composable that allows the user to select the desired cupcake quantity and expects
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* [onNextButtonClicked] lambda that expects the selected quantity and triggers the navigation to
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* next screen
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*/
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@Composable
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fun StartOrderScreen(
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quantityOptions: List<Pair<Int, Int>>,
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onNextButtonClicked: (Int) -> Unit,
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modifier: Modifier = Modifier
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){
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Column(
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modifier = modifier,
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verticalArrangement = Arrangement.SpaceBetween
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) {
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Column(
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modifier = Modifier.fillMaxWidth(),
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horizontalAlignment = Alignment.CenterHorizontally,
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verticalArrangement = Arrangement.spacedBy(dimensionResource(R.dimen.padding_small))
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) {
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Spacer(modifier = Modifier.height(dimensionResource(R.dimen.padding_medium)))
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Image(
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painter = painterResource(R.drawable.cupcake),
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contentDescription = null,
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modifier = Modifier.width(300.dp)
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)
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Spacer(modifier = Modifier.height(dimensionResource(R.dimen.padding_medium)))
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Text(
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text = stringResource(R.string.order_cupcakes),
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style = MaterialTheme.typography.headlineSmall
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)
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Spacer(modifier = Modifier.height(dimensionResource(R.dimen.padding_small)))
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}
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Row(modifier = Modifier.weight(1f, false)) {
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Column(
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modifier = Modifier.fillMaxWidth(),
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horizontalAlignment = Alignment.CenterHorizontally,
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verticalArrangement = Arrangement.spacedBy(
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dimensionResource(id = R.dimen.padding_medium)
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)
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) {
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quantityOptions.forEach { item ->
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SelectQuantityButton(
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labelResourceId = item.first,
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onClick = { onNextButtonClicked(item.second) }
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)
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}
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}
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}
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}
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}
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/**
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* Customizable button composable that displays the [labelResourceId]
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* and triggers [onClick] lambda when this composable is clicked
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*/
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@Composable
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fun SelectQuantityButton(
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@StringRes labelResourceId: Int,
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onClick: () -> Unit,
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modifier: Modifier = Modifier
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){
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Button(
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onClick = onClick,
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modifier = modifier.widthIn(min = 250.dp)
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) {
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Text(stringResource(labelResourceId))
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}
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}
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@Preview
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@Composable
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fun StartOrderPreview(){
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StartOrderScreen(
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quantityOptions = DataSource.quantityOptions,
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onNextButtonClicked = {},
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modifier = Modifier.fillMaxSize().padding(dimensionResource(R.dimen.padding_medium))
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)
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}
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