优化

app/src/main/java/io/legado/app/ui/book/audio/AudioPlayActivity.kt

@@ -538,19 +538,7 @@ class AudioPlayActivity :
         binding.cdTimer.setCardBackgroundColor(colorSurfaceContainer)
         binding.cdSpeed.setCardBackgroundColor(colorSurfaceContainer)
 
-        val states = arrayOf(
-            intArrayOf(android.R.attr.state_enabled, android.R.attr.state_checked),
-            intArrayOf(android.R.attr.state_enabled, -android.R.attr.state_checked),
-            intArrayOf(-android.R.attr.state_enabled)
-        )
-
-        val colors = intArrayOf(
-            colorSurface,
-            colorOnSurface,
-            colorOnSurface.copy(alpha = 0.3f)
-        )
-
-        val stateList = ColorStateList(states, colors)
+        val stateList = ColorStateList.valueOf(colorOnSurface)
         listOf(
             binding.ivSkipNext, binding.ivSkipPrevious, binding.ivPlayMode, binding.ivTimer,
             binding.ivChapter, binding.ivFastForward, binding.btnReset, binding.fabPlayStop