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| @@ -0,0 +1,22 @@ | ||
| # Connectivity samples | ||
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| > Audio Manager Sample Complete | ||
| ## License | ||
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| ``` | ||
| 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 | ||
| https://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. | ||
| ``` | ||
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| apply from: "$rootDir/gradle/sample-build.gradle" | ||
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| android { | ||
| namespace 'com.example.platform.connectivity.audio' | ||
| } | ||
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| dependencies { | ||
| // Add samples specific dependencies | ||
| } |
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...s/connectivity/audio/src/main/java/com/example/platform/connectivity/audio/AudioSample.kt
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| package com.example.platform.connectivity.audio | ||
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| import android.content.Context | ||
| import android.media.AudioDeviceInfo | ||
| import android.media.AudioManager | ||
| import android.widget.Toast | ||
| import androidx.compose.foundation.clickable | ||
| import androidx.compose.foundation.layout.Box | ||
| import androidx.compose.foundation.layout.Column | ||
| import androidx.compose.foundation.layout.Row | ||
| import androidx.compose.foundation.layout.fillMaxWidth | ||
| import androidx.compose.foundation.layout.padding | ||
| import androidx.compose.foundation.lazy.LazyColumn | ||
| import androidx.compose.foundation.lazy.items | ||
| import androidx.compose.material3.Icon | ||
| import androidx.compose.material3.MaterialTheme | ||
| import androidx.compose.material3.Text | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.collectAsState | ||
| import androidx.compose.runtime.getValue | ||
| import androidx.compose.ui.Alignment | ||
| import androidx.compose.ui.Modifier | ||
| import androidx.compose.ui.graphics.Color | ||
| import androidx.compose.ui.platform.LocalContext | ||
| import androidx.compose.ui.res.painterResource | ||
| import androidx.compose.ui.res.stringResource | ||
| import androidx.compose.ui.unit.dp | ||
| import com.example.platform.connectivity.audio.datasource.PlatformAudioSource | ||
| import com.example.platform.connectivity.audio.viewmodel.AudioDeviceUI | ||
| import com.example.platform.connectivity.audio.viewmodel.AudioDeviceViewModel | ||
| import com.example.platform.connectivity.audio.viewmodel.getDeviceName | ||
| import com.example.platform.connectivity.audio.viewmodel.getStatusColor | ||
| import com.google.android.catalog.framework.annotations.Sample | ||
|
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| @Sample( | ||
| name = "Audio Manager", | ||
| description = "This sample will show you how get all audio sources and set an audio device. Covers Bluetooth, LEA, Wired and internal speakers" | ||
| ) | ||
| @Composable | ||
| fun AudioSample() { | ||
| val context = LocalContext.current | ||
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| val audioManager: AudioManager = context.getSystemService(Context.AUDIO_SERVICE) as AudioManager | ||
| val viewModel = AudioDeviceViewModel(PlatformAudioSource(audioManager)) | ||
| AudioSampleScreen(viewModel) | ||
| } | ||
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| @Composable | ||
| fun AudioSampleScreen(viewModel: AudioDeviceViewModel) { | ||
| val uiStateAvailableDevices by viewModel.availableDeviceUiState.collectAsState() | ||
| val uiStateActiveDevice by viewModel.activeDeviceUiState.collectAsState() | ||
| val uiStateErrorMessage by viewModel.errorUiState.collectAsState() | ||
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| uiStateErrorMessage?.let { | ||
| Toast.makeText(LocalContext.current, uiStateErrorMessage, Toast.LENGTH_LONG).show() | ||
| viewModel.onErrorMessageShown() | ||
| } | ||
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| Column { | ||
| ActiveAudioSource(uiStateActiveDevice) | ||
| Text(stringResource(id = R.string.selectdevice), | ||
| modifier = Modifier | ||
| .padding(8.dp, 12.dp), | ||
| style = MaterialTheme.typography.displayMedium) | ||
| AvailableDevicesList(uiStateAvailableDevices, viewModel::setAudioDevice) | ||
| } | ||
| } | ||
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| @Composable | ||
| fun AvailableDevicesList(audioDeviceWidgetUiState: AudioDeviceViewModel.AudioDeviceListUiState, onDeviceSelected: (AudioDeviceInfo) -> Unit){ | ||
| when(audioDeviceWidgetUiState){ | ||
| AudioDeviceViewModel.AudioDeviceListUiState.Loading -> {} | ||
| is AudioDeviceViewModel.AudioDeviceListUiState.Success -> { | ||
| ListOfAudioDevices(audioDeviceWidgetUiState.audioDevices, onDeviceSelected) | ||
| } | ||
| } | ||
| } | ||
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| @Composable | ||
| fun ActiveAudioSource(activeAudioDeviceUiState: AudioDeviceViewModel.ActiveAudioDeviceUiState) = | ||
| when(activeAudioDeviceUiState){ | ||
| AudioDeviceViewModel.ActiveAudioDeviceUiState.NotActive -> { | ||
| ActiveAudioSource(stringResource(id = R.string.nodevice), "", R.drawable.phone_icon) | ||
| } | ||
| is AudioDeviceViewModel.ActiveAudioDeviceUiState.OnActiveDevice -> { | ||
| ActiveAudioSource(stringResource(id = R.string.connected), | ||
| activeAudioDeviceUiState.audioDevice.getDeviceName(), | ||
| activeAudioDeviceUiState.audioDevice.resIconId) | ||
| } | ||
| } | ||
|
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| /** | ||
| * Shows user the active audio source | ||
| */ | ||
| @Composable | ||
| fun ActiveAudioSource(title: String, subTitle: String, resId: Int){ | ||
| Row(verticalAlignment = Alignment.CenterVertically, | ||
| modifier = Modifier | ||
| .padding(12.dp, 24.dp)){ | ||
| Icon(painterResource(resId), | ||
| contentDescription = null, | ||
| tint = MaterialTheme.colorScheme.primary) | ||
| Column { | ||
| Text(title, modifier = Modifier.padding(8.dp, 0.dp), | ||
| color = MaterialTheme.colorScheme.primary, | ||
| style = MaterialTheme.typography.headlineMedium) | ||
| Text(subTitle, modifier = Modifier.padding(8.dp, 0.dp), | ||
| color = MaterialTheme.colorScheme.primary, | ||
| style = MaterialTheme.typography.headlineSmall) | ||
| } | ||
| } | ||
| } | ||
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| /** | ||
| * Build an list of Audio Devices we can connect to | ||
| */ | ||
| @Composable | ||
| fun ListOfAudioDevices(devices: List<AudioDeviceUI>, onDeviceSelected: (AudioDeviceInfo) -> Unit) { | ||
| LazyColumn() { | ||
| items(devices) { item -> | ||
| AudioItem(audioDevice = item, onDeviceSelected = onDeviceSelected) | ||
| } | ||
| } | ||
| } | ||
|
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| /** | ||
| * Displays the audio device with Icon and Text | ||
| */ | ||
| @Composable | ||
| fun AudioItem( | ||
| audioDevice : AudioDeviceUI, | ||
| onDeviceSelected: (AudioDeviceInfo) -> Unit | ||
| ){ | ||
| Box(modifier = Modifier | ||
| .fillMaxWidth() | ||
| .clickable { onDeviceSelected(audioDevice.audioDeviceInfo) }){ | ||
| Row(modifier = Modifier.padding(12.dp, 8.dp), | ||
| verticalAlignment = Alignment.CenterVertically,) { | ||
| Icon(painterResource(audioDevice.resIconId), | ||
| contentDescription = null, | ||
| tint = Color.White) | ||
| Column { | ||
| Text(audioDevice.getDeviceName(), | ||
| modifier = Modifier | ||
| .padding(8.dp, 0.dp), | ||
| audioDevice.getStatusColor()) | ||
| Text("", | ||
| modifier = Modifier. | ||
| padding(8.dp, 0.dp), | ||
| audioDevice.getStatusColor()) | ||
| } | ||
| } | ||
| } | ||
| } |
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