up

app/src/main/java/io/legado/app/service/ReadAloudService.kt

@@ -1,30 +1,46 @@
 package io.legado.app.service
 
+import android.content.Context
 import android.content.Intent
+import android.media.AudioManager
 import android.speech.tts.TextToSpeech
+import android.speech.tts.UtteranceProgressListener
 import io.legado.app.R
 import io.legado.app.base.BaseService
 import io.legado.app.utils.toast
 import kotlinx.coroutines.launch
 import java.util.*
 
-class ReadAloudService : BaseService(), TextToSpeech.OnInitListener {
+class ReadAloudService : BaseService(), TextToSpeech.OnInitListener, AudioManager.OnAudioFocusChangeListener {
 
     companion object {
-        fun paly() {
+        var isRun = false
+        fun paly(context: Context, title: String, body: String) {
 
         }
 
-        fun pause() {
-
+        fun pause(context: Context) {
+            if (isRun) {
+                val intent = Intent(context, ReadAloudService::class.java)
+                intent.action = "pause"
+                context.startService(intent)
+            }
         }
 
-        fun resume() {
-
+        fun resume(context: Context) {
+            if (isRun) {
+                val intent = Intent(context, ReadAloudService::class.java)
+                intent.action = "resume"
+                context.startService(intent)
+            }
         }
 
-        fun stop() {
-
+        fun stop(context: Context) {
+            if (isRun) {
+                val intent = Intent(context, ReadAloudService::class.java)
+                intent.action = "stop"
+                context.startService(intent)
+            }
         }
     }
 
@@ -33,10 +49,16 @@ class ReadAloudService : BaseService(), TextToSpeech.OnInitListener {
 
     override fun onCreate() {
         super.onCreate()
+        isRun = true
         textToSpeech = TextToSpeech(this, this)
 
     }
 
+    override fun onDestroy() {
+        super.onDestroy()
+        isRun = false
+    }
+
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
         intent?.action?.let { action ->
             when (action) {
@@ -50,7 +72,7 @@ class ReadAloudService : BaseService(), TextToSpeech.OnInitListener {
 
                 }
                 "stop" -> {
-
+                    stopSelf()
                 }
             }
         }
@@ -65,6 +87,7 @@ class ReadAloudService : BaseService(), TextToSpeech.OnInitListener {
                     toast(R.string.tts_fix)
                     toTTSSetting()
                 } else {
+                    textToSpeech?.setOnUtteranceProgressListener(TTSUtteranceListener())
                     ttsIsSuccess = true
                 }
             } else {
@@ -73,9 +96,26 @@ class ReadAloudService : BaseService(), TextToSpeech.OnInitListener {
         }
     }
 
+    override fun onAudioFocusChange(focusChange: Int) {
+        when (focusChange) {
+            AudioManager.AUDIOFOCUS_GAIN -> {
+                // 重新获得焦点,  可做恢复播放，恢复后台音量的操作
+            }
+
+            AudioManager.AUDIOFOCUS_LOSS -> {
+                // 永久丢失焦点除非重新主动获取，这种情况是被其他播放器抢去了焦点，  为避免与其他播放器混音，可将音乐暂停
+            }
+            AudioManager.AUDIOFOCUS_LOSS_TRANSIENT -> {
+                // 暂时丢失焦点，这种情况是被其他应用申请了短暂的焦点，可压低后台音量
+            }
+            AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK -> {
+                // 短暂丢失焦点，这种情况是被其他应用申请了短暂的焦点希望其他声音能压低音量（或者关闭声音）凸显这个声音（比如短信提示音），
+            }
+        }
+    }
+
     private fun toTTSSetting() {
         //跳转到文字转语音设置界面
-
         try {
             val intent = Intent()
             intent.action = "com.android.settings.TTS_SETTINGS"
@@ -86,4 +126,27 @@ class ReadAloudService : BaseService(), TextToSpeech.OnInitListener {
         }
     }
 
+    /**
+     * 朗读监听
+     */
+    private inner class TTSUtteranceListener : UtteranceProgressListener() {
+
+        override fun onStart(s: String) {
+
+        }
+
+        override fun onDone(s: String) {
+
+        }
+
+        override fun onError(s: String) {
+
+        }
+
+        override fun onRangeStart(utteranceId: String, start: Int, end: Int, frame: Int) {
+            super.onRangeStart(utteranceId, start, end, frame)
+
+        }
+    }
+
 }