diff --git a/app/src/main/java/code/name/monkey/retromusic/fragments/player/circle/CirclePlayerFragment.kt b/app/src/main/java/code/name/monkey/retromusic/fragments/player/circle/CirclePlayerFragment.kt
index e9489f20f..186f29ec3 100644
--- a/app/src/main/java/code/name/monkey/retromusic/fragments/player/circle/CirclePlayerFragment.kt
+++ b/app/src/main/java/code/name/monkey/retromusic/fragments/player/circle/CirclePlayerFragment.kt
@@ -275,7 +275,7 @@ class CirclePlayerFragment : AbsPlayerFragment(R.layout.fragment_circle_player),
     }
 
 
-    override fun onProgressChanged(seekBar: CircularSeekBar?, progress: Float, fromUser: Boolean) {
+    override fun onProgressChanged(circularSeekBar: CircularSeekBar?, progress: Float, fromUser: Boolean) {
         val audioManager = audioManager
         audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, progress.toInt(), 0)
     }
@@ -286,7 +286,7 @@ class CirclePlayerFragment : AbsPlayerFragment(R.layout.fragment_circle_player),
     override fun onStopTrackingTouch(seekBar: CircularSeekBar?) {
     }
 
-    fun setUpProgressSlider() {
+    private fun setUpProgressSlider() {
         binding.progressSlider.applyColor(accentColor())
         binding.progressSlider.setOnSeekBarChangeListener(object : SimpleOnSeekbarChangeListener() {
             override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
diff --git a/app/src/main/java/code/name/monkey/retromusic/helper/MusicProgressViewUpdateHelper.kt b/app/src/main/java/code/name/monkey/retromusic/helper/MusicProgressViewUpdateHelper.kt
index 2e6aefefb..3562ef914 100644
--- a/app/src/main/java/code/name/monkey/retromusic/helper/MusicProgressViewUpdateHelper.kt
+++ b/app/src/main/java/code/name/monkey/retromusic/helper/MusicProgressViewUpdateHelper.kt
@@ -15,6 +15,7 @@
 package code.name.monkey.retromusic.helper
 
 import android.os.Handler
+import android.os.Looper
 import android.os.Message
 import kotlin.math.max
 
@@ -32,13 +33,17 @@ class MusicProgressViewUpdateHelper : Handler {
         removeMessages(CMD_REFRESH_PROGRESS_VIEWS)
     }
 
-    constructor(callback: Callback) {
+    constructor(callback: Callback) : super(Looper.getMainLooper()) {
         this.callback = callback
         this.intervalPlaying = UPDATE_INTERVAL_PLAYING
         this.intervalPaused = UPDATE_INTERVAL_PAUSED
     }
 
-    constructor(callback: Callback, intervalPlaying: Int, intervalPaused: Int) {
+    constructor(
+        callback: Callback,
+        intervalPlaying: Int,
+        intervalPaused: Int,
+    ) : super(Looper.getMainLooper()) {
         this.callback = callback
         this.intervalPlaying = intervalPlaying
         this.intervalPaused = intervalPaused
diff --git a/app/src/main/java/code/name/monkey/retromusic/lyrics/CoverLrcView.kt b/app/src/main/java/code/name/monkey/retromusic/lyrics/CoverLrcView.kt
index bd421250a..0f2d28d91 100644
--- a/app/src/main/java/code/name/monkey/retromusic/lyrics/CoverLrcView.kt
+++ b/app/src/main/java/code/name/monkey/retromusic/lyrics/CoverLrcView.kt
@@ -42,6 +42,7 @@ import kotlin.math.abs
  * 歌词 Created by wcy on 2015/11/9.
  */
 @SuppressLint("StaticFieldLeak")
+@Suppress("deprecation")
 class CoverLrcView @JvmOverloads constructor(
     context: Context?,
     attrs: AttributeSet? = null,
diff --git a/app/src/main/java/code/name/monkey/retromusic/util/PackageValidator.kt b/app/src/main/java/code/name/monkey/retromusic/util/PackageValidator.kt
index cc4124a90..012dfc85a 100644
--- a/app/src/main/java/code/name/monkey/retromusic/util/PackageValidator.kt
+++ b/app/src/main/java/code/name/monkey/retromusic/util/PackageValidator.kt
@@ -205,6 +205,7 @@ class PackageValidator(
      * If the app is not found, or if the app does not have exactly one signature, this method
      * returns `null` as the signature.
      */
+    @Suppress("deprecation")
     private fun getSignature(packageInfo: PackageInfo): String? {
         // Security best practices dictate that an app should be signed with exactly one (1)
         // signature. Because of this, if there are multiple signatures, reject it.
diff --git a/app/src/main/java/code/name/monkey/retromusic/util/PreferenceUtil.kt b/app/src/main/java/code/name/monkey/retromusic/util/PreferenceUtil.kt
index dcdbae20d..c2fe85c2b 100644
--- a/app/src/main/java/code/name/monkey/retromusic/util/PreferenceUtil.kt
+++ b/app/src/main/java/code/name/monkey/retromusic/util/PreferenceUtil.kt
@@ -336,6 +336,7 @@ object PreferenceUtil {
 
     val isLockScreen get() = sharedPreferences.getBoolean(LOCK_SCREEN, false)
 
+    @Suppress("deprecation")
     fun isAllowedToDownloadMetadata(context: Context): Boolean {
         return when (autoDownloadImagesPolicy) {
             "always" -> true