优化

app/src/main/java/io/legado/app/help/TTS.kt

@@ -0,0 +1,100 @@
+package io.legado.app.help
+
+import android.speech.tts.TextToSpeech
+import android.speech.tts.UtteranceProgressListener
+import io.legado.app.R
+import io.legado.app.constant.AppLog
+import io.legado.app.utils.splitNotBlank
+import io.legado.app.utils.toastOnUi
+import splitties.init.appCtx
+
+class TTS {
+
+    private val tag = "legado_tts"
+
+    private var textToSpeech: TextToSpeech? = null
+
+    private var text: String? = null
+
+    private val initListener by lazy {
+        InitListener()
+    }
+
+    private val utteranceListener by lazy {
+        TTSUtteranceListener()
+    }
+
+    fun speak(text: String) {
+        this.text = text
+        if (textToSpeech == null) {
+
+        } else {
+
+        }
+    }
+
+    private fun initTts() {
+        textToSpeech == TextToSpeech(appCtx, initListener)
+    }
+
+    private fun clearTts() {
+        textToSpeech?.let { tts ->
+            tts.stop()
+            tts.shutdown()
+        }
+        textToSpeech = null
+    }
+
+    private fun addTextToSpeakList() {
+        textToSpeech?.let { tts ->
+            kotlin.runCatching {
+                var result = tts.speak("", TextToSpeech.QUEUE_FLUSH, null, null)
+                if (result == TextToSpeech.ERROR) {
+                    clearTts()
+                    textToSpeech = TextToSpeech(appCtx, initListener)
+                    return
+                }
+                text?.splitNotBlank("\n")?.forEachIndexed { i, s ->
+                    result = tts.speak(s, TextToSpeech.QUEUE_ADD, null, tag + i)
+                    if (result == TextToSpeech.ERROR) {
+                        AppLog.put("tts朗读出错:$text")
+                    }
+                }
+            }.onFailure {
+                AppLog.put("tts朗读出错", it)
+                appCtx.toastOnUi(it.localizedMessage)
+            }
+        }
+    }
+
+    private inner class InitListener : TextToSpeech.OnInitListener {
+
+        override fun onInit(status: Int) {
+            if (status == TextToSpeech.SUCCESS) {
+                textToSpeech?.setOnUtteranceProgressListener(utteranceListener)
+            } else {
+                appCtx.toastOnUi(R.string.tts_init_failed)
+            }
+        }
+
+    }
+
+    /**
+     * 朗读监听
+     */
+    private inner class TTSUtteranceListener : UtteranceProgressListener() {
+
+        override fun onStart(utteranceId: String?) {
+            TODO("Not yet implemented")
+        }
+
+        override fun onDone(utteranceId: String?) {
+            TODO("Not yet implemented")
+        }
+
+        override fun onError(utteranceId: String?) {
+            TODO("Not yet implemented")
+        }
+
+    }
+}