优化

app/src/main/java/io/legado/app/ui/book/read/config/ReadAloudDialog.kt

@@ -85,7 +85,7 @@ class ReadAloudDialog : BaseDialogFragment(R.layout.dialog_read_aloud) {
         upTimerText(BaseReadAloudService.timeMinute)
         seekTimer.progress = BaseReadAloudService.timeMinute
         cbTtsFollowSys.isChecked = requireContext().getPrefBoolean("ttsFollowSys", true)
-        seekTtsSpeechRate.isEnabled = !cbTtsFollowSys.isChecked
+        upTtsSpeechRateEnabled(!cbTtsFollowSys.isChecked)
         upSeekTimer()
     }
 
@@ -110,7 +110,7 @@ class ReadAloudDialog : BaseDialogFragment(R.layout.dialog_read_aloud) {
         llToBackstage.setOnClickListener { callBack?.finish() }
         cbTtsFollowSys.setOnCheckedChangeListener { _, isChecked ->
             AppConfig.ttsFlowSys = isChecked
-            seekTtsSpeechRate.isEnabled = !isChecked
+            upTtsSpeechRateEnabled(!isChecked)
             upTtsSpeechRate()
         }
         ivTtsSpeechReduce.setOnClickListener {
@@ -142,6 +142,14 @@ class ReadAloudDialog : BaseDialogFragment(R.layout.dialog_read_aloud) {
         })
     }
 
+    private fun upTtsSpeechRateEnabled(enabled: Boolean) {
+        binding.run {
+            seekTtsSpeechRate.isEnabled = enabled
+            ivTtsSpeechReduce.isEnabled = enabled
+            ivTtsSpeechAdd.isEnabled = enabled
+        }
+    }
+
     private fun upPlayState() {
         if (!BaseReadAloudService.pause) {
             binding.ivPlayPause.setImageResource(R.drawable.ic_pause_24dp)