``` /* * 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.wear.compose.material3.samples import androidx.annotation.Sampled import androidx.compose.animation.core.Animatable import androidx.compose.animation.core.LinearEasing import androidx.compose.animation.core.tween import androidx.compose.foundation.background import androidx.compose.foundation.focusable import androidx.compose.foundation.layout.Box import androidx.compose.foundation.layout.Spacer import androidx.compose.foundation.layout.fillMaxSize import androidx.compose.foundation.layout.padding import androidx.compose.foundation.layout.size import androidx.compose.foundation.shape.CircleShape import androidx.compose.material.icons.Icons import androidx.compose.material.icons.filled.Close import androidx.compose.material.icons.filled.PlayArrow import androidx.compose.runtime.Composable import androidx.compose.runtime.LaunchedEffect 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.draw.drawBehind import androidx.compose.ui.graphics.Color import androidx.compose.ui.semantics.contentDescription import androidx.compose.ui.semantics.semantics import androidx.compose.ui.unit.dp import androidx.wear.compose.material3.ArcProgressIndicator import androidx.wear.compose.material3.ArcProgressIndicatorDefaults import androidx.wear.compose.material3.CircularProgressIndicator import androidx.wear.compose.material3.CircularProgressIndicatorDefaults import androidx.wear.compose.material3.Icon import androidx.wear.compose.material3.IconButton import androidx.wear.compose.material3.IconButtonDefaults import androidx.wear.compose.material3.MaterialTheme import androidx.wear.compose.material3.ProgressIndicatorDefaults import androidx.wear.compose.material3.SegmentedCircularProgressIndicator import androidx.wear.compose.material3.drawCircularProgressIndicator @Sampled @Composable fun FullScreenProgressIndicatorSample() { Box( modifier = Modifier.background(MaterialTheme.colorScheme.background) .padding(CircularProgressIndicatorDefaults.FullScreenPadding) .fillMaxSize() ) { CircularProgressIndicator(progress = { 0.25f }, startAngle = 120f, endAngle = 60f) } } @Sampled @Composable fun MediaButtonProgressIndicatorSample() { var isPlaying by remember { mutableStateOf(false) } val buttonPadding = 4.dp val progressStrokeWidth = 4.dp val progress = 0.75f Box(modifier = Modifier.fillMaxSize().background(MaterialTheme.colorScheme.background)) { // The CircularProgressIndicator should be around the IconButton, with an extra gap between // then of 'buttonPadding'. We multiply by 2 because the size includes progressStrokeWidth // at top and bottom and the buttonPadding at top and bottom. CircularProgressIndicator( modifier = Modifier.align(Alignment.Center) .size( IconButtonDefaults.DefaultButtonSize + progressStrokeWidth * 2 + buttonPadding * 2 ), progress = { progress }, strokeWidth = progressStrokeWidth, ) IconButton( modifier = Modifier.align(Alignment.Center) .semantics { // Set custom progress semantics for accessibility. contentDescription = String.format( "Play/pause button, track progress: %.0f%%", progress * 100, ) } .clip(CircleShape) .background(MaterialTheme.colorScheme.surfaceContainerLow), onClick = { isPlaying = !isPlaying }, ) { Icon( imageVector = if (isPlaying) Icons.Filled.Close else Icons.Filled.PlayArrow, contentDescription = null, ) } } } @Sampled @Composable fun OverflowProgressIndicatorSample() { Box( modifier = Modifier.background(MaterialTheme.colorScheme.background) .padding(CircularProgressIndicatorDefaults.FullScreenPadding) .fillMaxSize() ) { CircularProgressIndicator( // Overflow value of 120% progress = { 1.2f }, allowProgressOverflow = true, startAngle = 120f, endAngle = 60f, ) } } @Sampled @Composable fun SmallValuesProgressIndicatorSample() { Box { CircularProgressIndicator( // Small progress values like 2% will be rounded up to at least the stroke width. progress = { 0.02f }, modifier = Modifier.fillMaxSize().padding(CircularProgressIndicatorDefaults.FullScreenPadding), startAngle = 120f, endAngle = 60f, strokeWidth = 10.dp, colors = ProgressIndicatorDefaults.colors( indicatorColor = Color.Green, trackColor = Color.White, ), ) } } @Sampled @Composable fun CircularProgressIndicatorCustomAnimationSample() { val animatedProgress = remember { Animatable(0f) } val colors = ProgressIndicatorDefaults.colors(indicatorColor = Color.Green, trackColor = Color.White) LaunchedEffect(Unit) { animatedProgress.animateTo(1f, tween(durationMillis = 1024, easing = LinearEasing)) animatedProgress.animateTo(0f, tween(durationMillis = 1024, easing = LinearEasing)) } Box( modifier = Modifier.background(MaterialTheme.colorScheme.background) .padding(CircularProgressIndicatorDefaults.FullScreenPadding) .fillMaxSize() ) { // Draw the circular progress indicator with custom animation Spacer( Modifier.fillMaxSize().focusable().drawBehind { drawCircularProgressIndicator( progress = animatedProgress.value, strokeWidth = 10.dp, colors = colors, startAngle = 120f, endAngle = 60f, ) } ) } } @Sampled @Composable fun IndeterminateProgressIndicatorSample() { Box(modifier = Modifier.fillMaxSize()) { CircularProgressIndicator(modifier = Modifier.align(Alignment.Center)) } } @Sampled @Composable fun IndeterminateProgressArcSample() { Box(modifier = Modifier.fillMaxSize()) { ArcProgressIndicator( modifier = Modifier.align(Alignment.Center) .size(ArcProgressIndicatorDefaults.recommendedIndeterminateDiameter) ) } } @Sampled @Composable fun SegmentedProgressIndicatorSample() { Box( modifier = Modifier.background(MaterialTheme.colorScheme.background) .padding(CircularProgressIndicatorDefaults.FullScreenPadding) .fillMaxSize() ) { SegmentedCircularProgressIndicator(segmentCount = 5, progress = { 0.5f }) } } @Sampled @Composable fun SegmentedProgressIndicatorBinarySample() { Box( modifier = Modifier.background(MaterialTheme.colorScheme.background) .padding(CircularProgressIndicatorDefaults.FullScreenPadding) .fillMaxSize() ) { SegmentedCircularProgressIndicator(segmentCount = 5, segmentValue = { it % 2 != 0 }) } } @Sampled @Composable fun SmallSegmentedProgressIndicatorSample() { Box(modifier = Modifier.fillMaxSize()) { SegmentedCircularProgressIndicator( segmentCount = 6, progress = { 0.75f }, modifier = Modifier.align(Alignment.Center).size(80.dp), ) } } @Sampled @Composable fun SmallSegmentedProgressIndicatorBinarySample() { Box(modifier = Modifier.fillMaxSize()) { SegmentedCircularProgressIndicator( segmentCount = 8, segmentValue = { it % 2 != 0 }, modifier = Modifier.align(Alignment.Center).size(80.dp), ) } } ```