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Add sample screen for connectedAndInstalledNodes function
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174 changes: 174 additions & 0 deletions
174
...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 +1,174 @@ | ||
| /* | ||
| * 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 | ||
|
|
||
| import androidx.compose.foundation.layout.Box | ||
| import androidx.compose.foundation.layout.Column | ||
| import androidx.compose.foundation.layout.fillMaxSize | ||
| 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.Card | ||
| import androidx.compose.material3.CircularProgressIndicator | ||
| import androidx.compose.material3.MaterialTheme | ||
| import androidx.compose.material3.Text | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.getValue | ||
| import androidx.compose.ui.Alignment | ||
| import androidx.compose.ui.Modifier | ||
| import androidx.compose.ui.res.stringResource | ||
| import androidx.compose.ui.tooling.preview.Preview | ||
| import androidx.compose.ui.unit.dp | ||
| import androidx.hilt.navigation.compose.hiltViewModel | ||
| import androidx.lifecycle.compose.collectAsStateWithLifecycle | ||
| import com.google.android.gms.wearable.Node | ||
| import com.google.android.horologist.datalayer.sample.R | ||
|
|
||
| @Composable | ||
| fun NodesListenerScreen( | ||
| modifier: Modifier = Modifier, | ||
| viewModel: NodesListenerViewModel = hiltViewModel(), | ||
| ) { | ||
| val state by viewModel.uiState.collectAsStateWithLifecycle() | ||
|
|
||
| if (state == NodesListenerScreenState.Idle) { | ||
| viewModel.initialize() | ||
| } | ||
|
|
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| NodesListenerScreen( | ||
| state = state, | ||
| modifier = modifier, | ||
| ) | ||
| } | ||
|
|
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| @Composable | ||
| fun NodesListenerScreen( | ||
| state: NodesListenerScreenState, | ||
| modifier: Modifier = Modifier, | ||
| ) { | ||
| LazyColumn( | ||
| modifier = modifier.fillMaxSize(), | ||
| horizontalAlignment = Alignment.CenterHorizontally, | ||
| ) { | ||
| item { | ||
| Text( | ||
| text = stringResource(id = R.string.nodes_listener_screen_header), | ||
| modifier = Modifier.padding(vertical = 10.dp), | ||
| style = MaterialTheme.typography.titleLarge, | ||
| ) | ||
| } | ||
|
|
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| if (state != NodesListenerScreenState.ApiNotAvailable) { | ||
| item { | ||
| Text( | ||
| text = stringResource(id = R.string.nodes_listener_screen_message), | ||
| modifier = Modifier.padding(vertical = 10.dp), | ||
| style = MaterialTheme.typography.bodyLarge, | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| when (state) { | ||
| NodesListenerScreenState.Idle, | ||
| NodesListenerScreenState.Loading -> { | ||
| item { | ||
| CircularProgressIndicator() | ||
| } | ||
| } | ||
|
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||
| is NodesListenerScreenState.Loaded -> { | ||
| if (state.nodeList.isNotEmpty()) { | ||
| items(items = state.nodeList.toList()) { node -> | ||
| Box( | ||
| modifier = modifier | ||
| .padding(16.dp) | ||
| .fillMaxWidth(), | ||
| contentAlignment = Alignment.Center, | ||
| ) { | ||
| Card { | ||
| Column( | ||
| modifier = Modifier | ||
| .padding(16.dp) | ||
| .fillMaxWidth(), | ||
|
|
||
| ) { | ||
| Text( | ||
| stringResource( | ||
| R.string.nodes_listener_screen_node_name_label, | ||
| node.displayName | ||
| ) | ||
| ) | ||
| Text( | ||
| style = MaterialTheme.typography.labelMedium, | ||
| text = stringResource( | ||
| R.string.nodes_listener_screen_node_id_label, | ||
| 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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| @Preview(showBackground = true) | ||
| @Composable | ||
| fun NodesListenerScreenPreview() { | ||
| NodesListenerScreen( | ||
| state = NodesListenerScreenState.Loaded( | ||
| nodeList = setOf( | ||
| NodePreviewImpl( | ||
| displayName = "Google Pixel Watch", | ||
| id = "903b8371", | ||
| isNearby = true | ||
| ), | ||
| NodePreviewImpl( | ||
| displayName = "Galaxy Watch4 Classic", | ||
| id = "813d1812", | ||
| isNearby = false | ||
| ), | ||
| ) | ||
| ) | ||
| ) | ||
| } | ||
|
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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 | ||
| } |
75 changes: 75 additions & 0 deletions
75
...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 +1,75 @@ | ||
| /* | ||
| * 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 | ||
|
|
||
| import androidx.lifecycle.ViewModel | ||
| import androidx.lifecycle.viewModelScope | ||
| import com.google.android.gms.wearable.Node | ||
| import com.google.android.horologist.datalayer.phone.PhoneDataLayerAppHelper | ||
| import dagger.hilt.android.lifecycle.HiltViewModel | ||
| import kotlinx.coroutines.flow.MutableStateFlow | ||
| import kotlinx.coroutines.flow.StateFlow | ||
| import kotlinx.coroutines.launch | ||
| import javax.inject.Inject | ||
|
|
||
| @HiltViewModel | ||
| class NodesListenerViewModel | ||
| @Inject | ||
| constructor( | ||
| private val phoneDataLayerAppHelper: PhoneDataLayerAppHelper, | ||
| ) : 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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| fun initialize() { | ||
| if (initializeCalled) return | ||
| initializeCalled = true | ||
|
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| _uiState.value = NodesListenerScreenState.Loading | ||
|
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| viewModelScope.launch { | ||
| if (!phoneDataLayerAppHelper.isAvailable()) { | ||
| _uiState.value = NodesListenerScreenState.ApiNotAvailable | ||
| } else { | ||
| loadNodes() | ||
| } | ||
| } | ||
| } | ||
|
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| private suspend fun loadNodes() { | ||
| _uiState.value = NodesListenerScreenState.Loading | ||
|
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| phoneDataLayerAppHelper.connectedAndInstalledNodes.collect { | ||
| _uiState.value = NodesListenerScreenState.Loaded(nodeList = it) | ||
| } | ||
| } | ||
|
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| } | ||
|
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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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