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Add sample screen for connectedAndInstalledNodes function (#1999)
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165 changes: 165 additions & 0 deletions
165
...m/google/android/horologist/datalayer/sample/screens/nodeslistener/NodesListenerScreen.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,165 @@ | ||
| /* | ||
| * Copyright 2024 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. | ||
| */ | ||
|
|
||
| package com.google.android.horologist.datalayer.sample.screens.nodeslistener | ||
|
|
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| import androidx.compose.foundation.layout.fillMaxSize | ||
| import androidx.compose.foundation.layout.padding | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.SideEffect | ||
| import androidx.compose.runtime.getValue | ||
| import androidx.compose.ui.Modifier | ||
| import androidx.compose.ui.res.stringResource | ||
| import androidx.compose.ui.unit.dp | ||
| import androidx.hilt.navigation.compose.hiltViewModel | ||
| import androidx.lifecycle.compose.collectAsStateWithLifecycle | ||
| import androidx.wear.compose.foundation.lazy.items | ||
| import androidx.wear.compose.material.CircularProgressIndicator | ||
| import androidx.wear.compose.material.Text | ||
| import androidx.wear.compose.ui.tooling.preview.WearPreviewDevices | ||
| import com.google.android.gms.wearable.Node | ||
| import com.google.android.horologist.compose.layout.ScalingLazyColumn | ||
| import com.google.android.horologist.compose.layout.ScalingLazyColumnState | ||
| import com.google.android.horologist.compose.layout.belowTimeTextPreview | ||
| import com.google.android.horologist.compose.material.Chip | ||
| import com.google.android.horologist.compose.material.Title | ||
| import com.google.android.horologist.datalayer.sample.R | ||
|
|
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| @Composable | ||
| fun NodesListenerScreen( | ||
| columnState: ScalingLazyColumnState, | ||
| modifier: Modifier = Modifier, | ||
| viewModel: NodesListenerViewModel = hiltViewModel(), | ||
| ) { | ||
| val state by viewModel.uiState.collectAsStateWithLifecycle() | ||
|
|
||
| if (state == NodesListenerScreenState.Idle) { | ||
| SideEffect { | ||
| viewModel.initialize() | ||
| } | ||
| } | ||
|
|
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| NodesListenerScreen( | ||
| state = state, | ||
| columnState = columnState, | ||
| modifier = modifier, | ||
| ) | ||
| } | ||
|
|
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| @Composable | ||
| fun NodesListenerScreen( | ||
| state: NodesListenerScreenState, | ||
| columnState: ScalingLazyColumnState, | ||
| modifier: Modifier = Modifier, | ||
| ) { | ||
| ScalingLazyColumn( | ||
| columnState = columnState, | ||
| modifier = modifier.fillMaxSize(), | ||
| ) { | ||
| item { | ||
| Title( | ||
| textId = R.string.nodes_listener_screen_header, | ||
| modifier = Modifier.padding(bottom = 10.dp), | ||
| ) | ||
| } | ||
| when (state) { | ||
| NodesListenerScreenState.Idle, | ||
| NodesListenerScreenState.Loading, | ||
| -> { | ||
| item { | ||
| CircularProgressIndicator() | ||
| } | ||
| } | ||
|
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| is NodesListenerScreenState.Loaded -> { | ||
| if (state.nodeList.isNotEmpty()) { | ||
| item { | ||
| Text(stringResource(id = R.string.nodes_listener_screen_message)) | ||
| } | ||
| items(state.nodeList.toList()) { node -> | ||
| Chip( | ||
| label = node.displayName, | ||
| onClick = { /* do nothing */ }, | ||
| secondaryLabel = node.id, | ||
| ) | ||
| } | ||
| } else { | ||
| item { | ||
| Text(stringResource(id = R.string.nodes_listener_screen_no_nodes)) | ||
| } | ||
| } | ||
| } | ||
|
|
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| NodesListenerScreenState.ApiNotAvailable -> { | ||
| item { | ||
| Text(stringResource(id = R.string.wearable_message_api_unavailable)) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| @WearPreviewDevices | ||
| @Composable | ||
| fun NodesListenerScreenPreviewLoaded() { | ||
| NodesListenerScreen( | ||
| state = NodesListenerScreenState.Loaded( | ||
| nodeList = setOf( | ||
| NodePreviewImpl( | ||
| displayName = "Google Pixel Watch", | ||
| id = "903b8371", | ||
| isNearby = true, | ||
| ), | ||
| NodePreviewImpl( | ||
| displayName = "Galaxy Watch4 Classic", | ||
| id = "813d1812", | ||
| isNearby = false, | ||
| ), | ||
| ), | ||
| ), | ||
| columnState = belowTimeTextPreview(), | ||
| ) | ||
| } | ||
|
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| @WearPreviewDevices | ||
| @Composable | ||
| fun NodesListenerScreenPreviewEmptyNodes() { | ||
| NodesListenerScreen( | ||
| state = NodesListenerScreenState.Loaded(emptySet()), | ||
| columnState = belowTimeTextPreview(), | ||
| ) | ||
| } | ||
|
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| @WearPreviewDevices | ||
| @Composable | ||
| fun NodesListenerScreenPreviewApiNotAvailable() { | ||
| NodesListenerScreen( | ||
| state = NodesListenerScreenState.ApiNotAvailable, | ||
| columnState = belowTimeTextPreview(), | ||
| ) | ||
| } | ||
|
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| private class NodePreviewImpl( | ||
| private val displayName: String, | ||
| private val id: String, | ||
| private val isNearby: Boolean, | ||
| ) : Node { | ||
| override fun getDisplayName(): String = displayName | ||
|
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| override fun getId(): String = id | ||
|
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| override fun isNearby(): Boolean = isNearby | ||
| } |
76 changes: 76 additions & 0 deletions
76
...oogle/android/horologist/datalayer/sample/screens/nodeslistener/NodesListenerViewModel.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| /* | ||
| * Copyright 2024 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. | ||
| */ | ||
|
|
||
| package com.google.android.horologist.datalayer.sample.screens.nodeslistener | ||
|
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| import androidx.annotation.MainThread | ||
| import androidx.lifecycle.ViewModel | ||
| import androidx.lifecycle.viewModelScope | ||
| import com.google.android.gms.wearable.Node | ||
| import com.google.android.horologist.datalayer.watch.WearDataLayerAppHelper | ||
| import dagger.hilt.android.lifecycle.HiltViewModel | ||
| import kotlinx.coroutines.flow.MutableStateFlow | ||
| import kotlinx.coroutines.flow.StateFlow | ||
| import kotlinx.coroutines.launch | ||
| import javax.inject.Inject | ||
|
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||
| @HiltViewModel | ||
| class NodesListenerViewModel | ||
| @Inject | ||
| constructor( | ||
| private val wearDataLayerAppHelper: WearDataLayerAppHelper, | ||
| ) : ViewModel() { | ||
|
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| private var initializeCalled = false | ||
|
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| private val _uiState = | ||
| MutableStateFlow<NodesListenerScreenState>(NodesListenerScreenState.Idle) | ||
| public val uiState: StateFlow<NodesListenerScreenState> = _uiState | ||
|
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| @MainThread | ||
| fun initialize() { | ||
| if (initializeCalled) return | ||
| initializeCalled = true | ||
|
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| _uiState.value = NodesListenerScreenState.Loading | ||
|
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| viewModelScope.launch { | ||
| if (!wearDataLayerAppHelper.isAvailable()) { | ||
| _uiState.value = NodesListenerScreenState.ApiNotAvailable | ||
| } else { | ||
| loadNodes() | ||
| } | ||
| } | ||
| } | ||
|
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| private suspend fun loadNodes() { | ||
| _uiState.value = NodesListenerScreenState.Loading | ||
|
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| wearDataLayerAppHelper.connectedAndInstalledNodes.collect { | ||
| _uiState.value = NodesListenerScreenState.Loaded(nodeList = it) | ||
| } | ||
| } | ||
| } | ||
|
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| sealed class NodesListenerScreenState { | ||
| data object Idle : NodesListenerScreenState() | ||
|
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| data object Loading : NodesListenerScreenState() | ||
|
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| data class Loaded(val nodeList: Set<Node>) : NodesListenerScreenState() | ||
|
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| data object ApiNotAvailable : NodesListenerScreenState() | ||
| } |
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