| /* |
| * Copyright 2019 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.ui.material.studies.rally |
| |
| import android.app.Activity |
| import android.os.Bundle |
| import androidx.compose.Composable |
| import androidx.compose.state |
| import androidx.compose.unaryPlus |
| import androidx.ui.core.dp |
| import androidx.ui.core.setContent |
| import androidx.ui.foundation.VerticalScroller |
| import androidx.ui.layout.Column |
| import androidx.ui.layout.LayoutHeight |
| import androidx.ui.layout.LayoutPadding |
| import androidx.ui.layout.Spacer |
| import androidx.ui.material.Tab |
| import androidx.ui.material.TabRow |
| import androidx.ui.material.studies.Scaffold |
| |
| /** |
| * This Activity recreates the Rally Material Study from |
| * https://material.io/design/material-studies/rally.html |
| */ |
| class RallyActivity : Activity() { |
| override fun onCreate(savedInstanceState: Bundle?) { |
| super.onCreate(savedInstanceState) |
| setContent { |
| RallyApp() |
| } |
| } |
| |
| @Composable |
| fun RallyApp() { |
| RallyTheme { |
| val allScreens = RallyScreenState.values().toList() |
| var currentScreen by +state { RallyScreenState.Overview } |
| Scaffold(appBar = { |
| TabRow(allScreens, selectedIndex = currentScreen.ordinal) { i, screen -> |
| Tab(text = screen.name, selected = currentScreen.ordinal == i) { |
| currentScreen = screen |
| } |
| } |
| }) { |
| currentScreen.body() |
| } |
| } |
| } |
| } |
| |
| @Composable |
| fun RallyBody() { |
| VerticalScroller { |
| Column(modifier = LayoutPadding(16.dp)) { |
| RallyAlertCard() |
| Spacer(LayoutHeight(10.dp)) |
| RallyAccountsOverviewCard() |
| Spacer(LayoutHeight(10.dp)) |
| RallyBillsOverviewCard() |
| } |
| } |
| } |
| |
| private enum class RallyScreenState { |
| Overview, Accounts, Bills |
| } |
| |
| @Composable |
| private fun RallyScreenState.body() = when (this) { |
| RallyScreenState.Overview -> RallyBody() |
| RallyScreenState.Accounts -> RallyAccountsCard() |
| RallyScreenState.Bills -> RallyBillsCard() |
| } |