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🔀 Merge pull request #13 from snuhcs-course/feat/tts-implementation-f…
…rontend Text-to-speech in the house!
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10 changes: 10 additions & 0 deletions
10
frontend/app/src/main/java/com/example/speechbuddy/ui/models/TextToSpeechUiState.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package com.example.speechbuddy.ui.models | ||
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| data class TextToSpeechUiState( | ||
| val buttonStatus: ButtonStatusType = ButtonStatusType.PLAY | ||
| ) | ||
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| enum class ButtonStatusType { | ||
| PLAY, | ||
| STOP | ||
| } |
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114 changes: 114 additions & 0 deletions
114
frontend/app/src/main/java/com/example/speechbuddy/viewmodel/TextToSpeechViewModel.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| package com.example.speechbuddy.viewmodel | ||
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| import android.content.Context | ||
| import android.os.Bundle | ||
| import android.speech.tts.TextToSpeech | ||
| import android.speech.tts.UtteranceProgressListener | ||
| import androidx.compose.runtime.getValue | ||
| import androidx.compose.runtime.mutableStateOf | ||
| import androidx.compose.runtime.setValue | ||
| import androidx.lifecycle.ViewModel | ||
| import com.example.speechbuddy.ui.models.ButtonStatusType | ||
| import com.example.speechbuddy.ui.models.TextToSpeechUiState | ||
| import dagger.hilt.android.lifecycle.HiltViewModel | ||
| import kotlinx.coroutines.flow.MutableStateFlow | ||
| import kotlinx.coroutines.flow.StateFlow | ||
| import kotlinx.coroutines.flow.asStateFlow | ||
| import kotlinx.coroutines.flow.update | ||
| import java.util.Locale | ||
| import javax.inject.Inject | ||
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| @HiltViewModel | ||
| class TextToSpeechViewModel @Inject internal constructor( | ||
| ) : ViewModel() { | ||
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| private val _uiState = MutableStateFlow(TextToSpeechUiState()) | ||
| val uiState: StateFlow<TextToSpeechUiState> = _uiState.asStateFlow() | ||
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| private var textToSpeech: TextToSpeech? = null | ||
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| var textInput by mutableStateOf("") | ||
| private set | ||
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| fun setText(input: String) { | ||
| textInput = input | ||
| } | ||
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| private fun clearText() { | ||
| textInput = "" | ||
| } | ||
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| fun ttsStop() { | ||
| textToSpeech?.stop() | ||
| } | ||
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| fun ttsStart(context: Context) { | ||
| // disable button | ||
| _uiState.update { currentState -> | ||
| currentState.copy( | ||
| buttonStatus = ButtonStatusType.STOP | ||
| ) | ||
| } | ||
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| textToSpeech = TextToSpeech(context) { | ||
| if (it == TextToSpeech.SUCCESS) { | ||
| textToSpeech?.let { txtToSpeech -> | ||
| txtToSpeech.language = Locale.KOREAN | ||
| txtToSpeech.setSpeechRate(1.0f) | ||
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| val params = Bundle() | ||
| params.putString(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, "") | ||
| txtToSpeech.setOnUtteranceProgressListener(object : | ||
| UtteranceProgressListener() { | ||
| override fun onStart(utteranceId: String?) { | ||
| // Speech has started, button is already disabled | ||
| } | ||
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| override fun onStop(utteranceId: String?, interrupted: Boolean) { | ||
| _uiState.update { currentState -> | ||
| currentState.copy( | ||
| buttonStatus = ButtonStatusType.PLAY | ||
| ) | ||
| } | ||
| } | ||
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| override fun onDone(utteranceId: String?) { | ||
| // Speech has finished, re-enable the button | ||
| _uiState.update { currentState -> | ||
| currentState.copy( | ||
| buttonStatus = ButtonStatusType.PLAY | ||
| ) | ||
| } | ||
| clearText() | ||
| } | ||
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| @Deprecated("Deprecated in Java") | ||
| override fun onError(utteranceId: String?) { | ||
| // There was an error, re-enable the button | ||
| _uiState.update { currentState -> | ||
| currentState.copy( | ||
| buttonStatus = ButtonStatusType.PLAY | ||
| ) | ||
| } | ||
| } | ||
| }) | ||
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| txtToSpeech.speak( | ||
| textInput, | ||
| TextToSpeech.QUEUE_ADD, | ||
| params, | ||
| "UniqueID" | ||
| ) | ||
| } | ||
| } else { | ||
| // Initialization failed, re-enable the button | ||
| _uiState.update { currentState -> | ||
| currentState.copy( | ||
| buttonStatus = ButtonStatusType.PLAY | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| } |
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