universal7885: FMRadio: Use kotlinx.cororutines library

* Background thread handle system

universal7885-common/apps/FMRadio/Android.bp

@@ -11,6 +11,7 @@ android_app {
     	"androidx.core_core",
     	"androidx.appcompat_appcompat",
     	"com.google.android.material_material",
+    	"kotlinx_coroutines_android",
     ],
     required: [
     	"privapp_whitelist_com.eurekateam.fmradio.xml",

universal7885-common/apps/FMRadio/src/com/eurekateam/fmradio/FMRadioService.kt

@@ -9,10 +9,10 @@ import android.media.MediaMetadata
 import android.media.session.MediaSession
 import android.media.session.PlaybackState
 import android.os.IBinder
-import android.util.Log
 import androidx.core.content.res.ResourcesCompat
 import androidx.core.graphics.drawable.toBitmap
 import com.eurekateam.fmradio.fragments.MainFragment
+import com.eurekateam.fmradio.utils.Log
 import java.io.File
 
 
@@ -38,7 +38,7 @@ class FMRadioService : Service() {
             return super.onStartCommand(intent, flags, startId)
         }
         if (intent != null) {
-            intent.action?.let { Log.i(TAG, it) }
+            intent.action?.let { Log.i(it) }
             when (intent.action) {
                 BEGIN_BG_SERVICE -> {
                     mContext = this
@@ -59,7 +59,7 @@ class FMRadioService : Service() {
                 }
                 ACTION_BEFORE -> {
                     mIsPlaying = true
-                    Log.i(TAG, "onStartCommand: mCurrentIndex $mIndex")
+                    Log.i("onStartCommand: mCurrentIndex $mIndex")
                     if (mIndex > 0)
                         mIndex -= 1
                     if (mIndex >= 1)
@@ -68,7 +68,7 @@ class FMRadioService : Service() {
                 }
                 ACTION_NEXT -> {
                     mIsPlaying = true
-                    Log.i(TAG, "onStartCommand: mCurrentIndex $mIndex")
+                    Log.i("onStartCommand: mCurrentIndex $mIndex")
                     if (mIndex < mTracks.size - 1)
                         mIndex += 1
                     if (mIndex < mTracks.size - 1)
@@ -78,8 +78,8 @@ class FMRadioService : Service() {
                 ACTION_QUIT -> {
                     mAudioManager = getSystemService(AUDIO_SERVICE) as AudioManager
                     mAudioManager.setParameters(FM_RADIO_OFF)
-                    stopForeground(true)
                     mMediaSession.release()
+                    stopSelf()
                 }
                 else -> {
                     throw IllegalAccessException("Unexpected Intent!")
@@ -90,7 +90,7 @@ class FMRadioService : Service() {
         mFilePath = mContext.filesDir
         mNativeFMInterface = NativeFMInterface()
         mTitle = "FM ${mTracks[mIndex].toFloat() / 1000} Mhz"
-        Log.i(TAG, "onStartCommand: mTitle=$mTitle")
+        Log.i("onStartCommand: mTitle=$mTitle")
         mMediaSession = MediaSession(this, "FMRadio")
         setPlaybackState()
         sendMetaData("FM ${mTracks[mIndex].toFloat() / 1000}Mhz")

universal7885-common/apps/FMRadio/src/com/eurekateam/fmradio/MainActivity.kt

@@ -159,10 +159,6 @@ class MainActivity : AppCompatActivity() {
         stopService(mIntent)
     }
 
-    override fun onDestroy() {
-        super.onDestroy()
-        (getSystemService(Context.AUDIO_SERVICE) as AudioManager).setParameters(FM_RADIO_OFF)
-    }
     companion object {
         private const val PACKAGENAME = "com.eurekateam.fmradio"
         private const val BEGIN_BG_SERVICE = "$PACKAGENAME.STARTBG"

universal7885-common/apps/FMRadio/src/com/eurekateam/fmradio/fragments/MainFragment.kt

@@ -5,6 +5,7 @@ import android.graphics.drawable.Drawable
 import android.graphics.drawable.Icon
 import android.media.AudioManager
 import android.os.Bundle
+import android.view.Display
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -21,6 +22,10 @@ import com.eurekateam.fmradio.NativeFMInterface
 import com.eurekateam.fmradio.R
 import com.google.android.material.floatingactionbutton.FloatingActionButton
 import com.google.android.material.textview.MaterialTextView
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import java.text.DecimalFormat
 
 
@@ -93,18 +98,23 @@ class MainFragment : Fragment(R.layout.fragment_main), View.OnClickListener,
                 setBackgroundColor(resources.getColor(android.R.color.system_accent1_700, requireContext().theme))
         }
         var mFMInit = false
+        GlobalScope.launch {
+            withContext(Dispatchers.IO){
                 if (mFreqCurrent == -1) {
                     mAudioManager.setParameters(FM_RADIO_OFF)
+                    withContext(Dispatchers.Main){
                         mUpdateEnableDisable(false, mRootView)
+                    }
                     mFMInit = true
                 }
+
                 if (FileUtilities.checkIfExistFile(FileUtilities.mFMFreqFileName, requireContext())){
                     mFreqCurrent = FileUtilities.readFromFile(
                         FileUtilities.mFMFreqFileName,
                         requireContext()
                     ).toInt()
                     mFMInterface.setFMFreq(fd, mFreqCurrent)
-            requireActivity().runOnUiThread {
+                    withContext(Dispatchers.Main) {
                         mFMFreq.text = mCleanFormat.format(mFreqCurrent.toFloat() / 1000)
                     }
                 }
@@ -114,19 +124,24 @@ class MainFragment : Fragment(R.layout.fragment_main), View.OnClickListener,
                         requireContext()
                     ).toInt()
                     mFMInterface.setFMVolume(fd, mVolume)
-            requireActivity().runOnUiThread {
+                    withContext(Dispatchers.Main) {
                         mSeekBar.progress = mVolume
                     }
                 }
+                withContext(Dispatchers.Main){
                     mSeekBar.min = 1
                     mSeekBar.max = 15
+                }
+                withContext(Dispatchers.IO){
                     if (mVolume == -1) {
                         mVolume = 8
                         mFMInterface.setFMVolume(fd, mVolume)
-            requireActivity().runOnUiThread {
+                        withContext(Dispatchers.Main) {
                             mSeekBar.progress = mVolume
                         }
                     }
+                }
+                withContext(Dispatchers.IO){
                     if (FileUtilities.checkIfExistFile(FileUtilities.mHeadsetFileName, requireContext())){
                         mHeadset = true
                         mAudioManager.mode = AudioManager.MODE_IN_COMMUNICATION
@@ -134,6 +149,7 @@ class MainFragment : Fragment(R.layout.fragment_main), View.OnClickListener,
                         mAudioManager.setParameters(FM_RADIO_OFF)
                         mAudioManager.setParameters(FM_RADIO_ON)
                         mAudioManager.mode = AudioManager.MODE_NORMAL
+                        withContext(Dispatchers.Main){
                             if (mHeadset) {
                                 mOutputSwitch.setImageIcon(
                                     Icon.createWithResource(
@@ -144,6 +160,8 @@ class MainFragment : Fragment(R.layout.fragment_main), View.OnClickListener,
                                 FileUtilities.createFile(FileUtilities.mHeadsetFileName, requireContext())
                             }
                         }
+                    }
+                }
                 mFMInterface.setFMFreq(fd, mFMInterface.getFMLower(fd))
                 mRefreshTracks()
                 if (mFreqCurrent != -1){
@@ -151,7 +169,6 @@ class MainFragment : Fragment(R.layout.fragment_main), View.OnClickListener,
                 } else {
                     mFreqCurrent = mFMInterface.getFMLower(fd)
                 }
-        Thread {
                 mFMInterface.setFMBoot(fd)
                 if (!mFMInit && isAdded) {
                     mFreqCurrent = mFMInterface.getFMFreq(fd).toInt()
@@ -160,10 +177,10 @@ class MainFragment : Fragment(R.layout.fragment_main), View.OnClickListener,
                         mFMFreq.text = mCleanFormat.format( mFreqCurrent.toFloat() / 1000)
                     }
                 }
-            if (mTracks.isEmpty()) return@Thread
+                if (mTracks.isEmpty())
                 if (mFreqCurrent == -1)
                     mFMInterface.setFMThread(fd, true)
-        }.start()
+                withContext(Dispatchers.Main){
                     mFavButton.let {
                         if (mFavStats[mFreqCurrent] == null){
                             mFavStats.putIfAbsent(mFreqCurrent, false)
@@ -174,6 +191,9 @@ class MainFragment : Fragment(R.layout.fragment_main), View.OnClickListener,
                             it.setImageDrawable(mStar)
                         }
                     }
+                }
+            }
+        }
         return mRootView
     }
     private fun View.disable(mTextView : Boolean = false) {