| /* |
| * Copyright 2022 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.constraintlayout.compose.demos |
| |
| import androidx.compose.foundation.background |
| import androidx.compose.foundation.clickable |
| import androidx.compose.foundation.layout.Arrangement |
| import androidx.compose.foundation.layout.Box |
| import androidx.compose.foundation.layout.Column |
| import androidx.compose.foundation.layout.Row |
| import androidx.compose.foundation.layout.Spacer |
| import androidx.compose.foundation.layout.fillMaxHeight |
| import androidx.compose.foundation.layout.fillMaxWidth |
| import androidx.compose.foundation.layout.height |
| import androidx.compose.foundation.layout.padding |
| import androidx.compose.foundation.shape.RoundedCornerShape |
| import androidx.compose.material.Button |
| import androidx.compose.material.Icon |
| import androidx.compose.material.MaterialTheme |
| import androidx.compose.material.Text |
| import androidx.compose.material.icons.Icons |
| import androidx.compose.material.icons.filled.ArrowBack |
| import androidx.compose.runtime.Composable |
| import androidx.compose.runtime.getValue |
| import androidx.compose.runtime.mutableStateOf |
| import androidx.compose.runtime.remember |
| import androidx.compose.runtime.setValue |
| import androidx.compose.ui.Alignment |
| import androidx.compose.ui.Modifier |
| import androidx.compose.ui.draw.clip |
| import androidx.compose.ui.graphics.Color |
| import androidx.compose.ui.graphics.graphicsLayer |
| import androidx.compose.ui.tooling.preview.Preview |
| import androidx.compose.ui.unit.dp |
| import androidx.compose.ui.unit.sp |
| |
| data class ComposeDemo(val title: String, val content: @Composable () -> Unit) |
| |
| val AllComposeConstraintLayoutDemos: List<ComposeDemo> = |
| listOf( |
| ComposeDemo("CustomColorInKeyAttributes") { CustomColorInKeyAttributesDemo() }, |
| ComposeDemo("Simple OnSwipe") { SimpleOnSwipe() }, |
| ComposeDemo("Multiple OnSwipe") { MultiSwipeDsl() }, |
| ComposeDemo("AnimatedChainOrientation") { ChainsAnimatedOrientationDemo() }, |
| ComposeDemo("CollapsibleToolbar w/ Column") { ToolBarDslDemo() }, |
| ComposeDemo("CollapsibleToolbar w/ LazyColumn") { ToolBarLazyDslDemo() }, |
| ComposeDemo("MotionLayout in LazyList") { MotionInLazyColumnDslDemo() }, |
| ComposeDemo("Animated Graphs") { AnimateGraphsOnRevealDemo() }, |
| ComposeDemo("Animated Reactions Selector") { ReactionSelectorDemo() }, |
| ComposeDemo("Animated Puzzle Pieces") { AnimatedPuzzlePiecesDemo() } |
| ) |
| |
| /** |
| * Main screen to explore and interact with all demos from [AllComposeConstraintLayoutDemos]. |
| */ |
| @Preview |
| @Composable |
| fun ComposeConstraintLayoutDemos() { |
| var displayedDemoIndex by remember { mutableStateOf(-1) } |
| val maxIndex = AllComposeConstraintLayoutDemos.size - 1 |
| Column { |
| Column { |
| when (displayedDemoIndex) { |
| -1 -> { |
| // Main Title |
| Text(text = "ComposeConstraintLayoutDemos", style = MaterialTheme.typography.h6) |
| Spacer(modifier = Modifier.height(8.dp)) |
| } |
| |
| else -> { |
| // Header with back button |
| val composeDemo = AllComposeConstraintLayoutDemos[displayedDemoIndex] |
| Row( |
| modifier = Modifier |
| .fillMaxWidth() |
| .height(50.dp) |
| .background(Color.White) |
| .graphicsLayer(shadowElevation = 2f), |
| verticalAlignment = Alignment.CenterVertically, |
| horizontalArrangement = Arrangement.SpaceBetween |
| ) { |
| Row( |
| modifier = Modifier |
| .fillMaxHeight() |
| .weight(1f, true) |
| .clickable { displayedDemoIndex = -1 }, |
| verticalAlignment = Alignment.CenterVertically |
| ) { |
| Icon(imageVector = Icons.Default.ArrowBack, contentDescription = "Back") |
| Text(text = composeDemo.title) |
| } |
| Row(horizontalArrangement = Arrangement.spacedBy(4.dp)) { |
| Button(onClick = { |
| displayedDemoIndex = if (displayedDemoIndex == 0) { |
| maxIndex |
| } else { |
| displayedDemoIndex - 1 |
| } |
| }) { |
| Text("Prev") |
| } |
| Button(onClick = { |
| displayedDemoIndex = if (displayedDemoIndex == maxIndex) { |
| 0 |
| } else { |
| displayedDemoIndex + 1 |
| } |
| }) { |
| Text("Next") |
| } |
| } |
| } |
| } |
| } |
| } |
| Column(verticalArrangement = Arrangement.spacedBy(8.dp)) { |
| when (displayedDemoIndex) { |
| -1 -> { |
| // Display list of demos |
| AllComposeConstraintLayoutDemos.forEachIndexed { index, composeDemo -> |
| ComposeDemoItem(composeDemo.title) { displayedDemoIndex = index } |
| } |
| } |
| |
| else -> { |
| // Display selected demo |
| Box( |
| Modifier |
| .fillMaxWidth() |
| .weight(1.0f, true) |
| ) { |
| AllComposeConstraintLayoutDemos[displayedDemoIndex].content() |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| @Composable |
| private fun ComposeDemoItem(title: String, modifier: Modifier = Modifier, onClick: () -> Unit) { |
| Box( |
| modifier = modifier |
| .padding(horizontal = 8.dp) |
| .fillMaxWidth() |
| .height(44.dp) |
| .clip(RoundedCornerShape(10.dp)) |
| .background(Color.White) |
| .clickable(onClick = onClick) |
| .padding(start = 8.dp), |
| contentAlignment = Alignment.CenterStart |
| ) { |
| Text( |
| text = title, |
| modifier = Modifier, |
| fontSize = 16.sp |
| ) |
| } |
| } |