add audio player component

app/src/main/AndroidManifest.xml

@@ -51,8 +51,10 @@
         <activity
             android:name=".activity.ProbeFormatActivity"
             android:screenOrientation="portrait" />
-        <activity android:name=".activity.AudioEffectActivity"
+        <activity
+            android:name=".activity.AudioEffectActivity"
             android:screenOrientation="portrait" />
+        <activity android:name=".activity.AudioPlayActivity"/>
     </application>
 
 </manifest>

app/src/main/java/com/frank/ffmpeg/activity/AudioHandleActivity.kt

@@ -1,6 +1,8 @@
 package com.frank.ffmpeg.activity
 
 import android.annotation.SuppressLint
+import android.content.Intent
+import android.net.Uri
 import android.os.Environment
 import android.os.Handler
 import android.os.Message
@@ -177,7 +179,10 @@ class AudioHandleActivity : BaseActivity() {
             }
             R.id.btn_play_audio//use AudioTrack to play audio
             -> {
-                Thread { AudioPlayer().play(srcFile) }.start()
+//                Thread { AudioPlayer().play(srcFile) }.start()
+                val audioIntent = Intent(this@AudioHandleActivity, AudioPlayActivity::class.java)
+                audioIntent.data = Uri.parse(srcFile)
+                startActivity(audioIntent)
                 return
             }
             R.id.btn_play_opensl//use OpenSL ES to play audio

app/src/main/java/com/frank/ffmpeg/activity/AudioPlayActivity.kt

@@ -0,0 +1,119 @@
+package com.frank.ffmpeg.activity
+
+import android.annotation.SuppressLint
+import android.media.MediaPlayer
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.os.Handler
+import android.os.Message
+import android.text.TextUtils
+import android.util.Log
+import android.widget.ImageView
+import android.widget.SeekBar
+import android.widget.TextView
+import com.frank.ffmpeg.R
+import com.frank.ffmpeg.util.TimeUtil
+
+class AudioPlayActivity : AppCompatActivity() {
+
+    companion object {
+        private val TAG = AudioPlayActivity::class.java.simpleName
+
+        private const val MSG_TIME = 123
+        private const val MSG_DURATION = 234
+    }
+
+    private var txtTitle: TextView? = null
+    private var txtArtist: TextView? = null
+    private var txtTime: TextView? = null
+    private var txtDuration: TextView? = null
+    private var audioBar: SeekBar? = null
+
+    private lateinit var audioPlayer:MediaPlayer
+
+    private val mHandler: Handler = @SuppressLint("HandlerLeak")
+    object : Handler() {
+        override fun handleMessage(msg: Message?) {
+            super.handleMessage(msg)
+            when (msg?.what) {
+                MSG_TIME -> {
+                    audioBar?.progress = audioPlayer.currentPosition
+                    txtTime?.text = TimeUtil.getVideoTime(audioPlayer.currentPosition.toLong())
+                    sendEmptyMessageDelayed(MSG_TIME, 1000)
+                }
+                MSG_DURATION -> {
+                    val duration = msg.obj as Int
+                    txtDuration?.text = TimeUtil.getVideoTime(duration.toLong())
+                    audioBar?.max = duration
+                }
+            }
+        }
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_audio_play)
+
+        initView()
+        initAudioPlayer()
+    }
+
+    private fun initView() {
+        txtTitle = findViewById(R.id.txt_title)
+        txtArtist = findViewById(R.id.txt_artist)
+        txtTime = findViewById(R.id.txt_time)
+        txtDuration = findViewById(R.id.txt_duration)
+        val btnPlay: ImageView = findViewById(R.id.img_play)
+        btnPlay.setOnClickListener {
+            if (isPlaying()) {
+                audioPlayer.pause()
+                btnPlay.setImageResource(R.drawable.ic_play)
+            } else {
+                audioPlayer.start()
+                btnPlay.setImageResource(R.drawable.ic_pause)
+            }
+        }
+        audioBar = findViewById(R.id.audio_bar)
+        audioBar?.setOnSeekBarChangeListener(object :SeekBar.OnSeekBarChangeListener {
+            override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+                if (!fromUser) return
+                audioBar?.progress = progress
+            }
+
+            override fun onStartTrackingTouch(seekBar: SeekBar?) {
+
+            }
+
+            override fun onStopTrackingTouch(seekBar: SeekBar?) {
+                audioPlayer.seekTo(audioBar?.progress!!)
+            }
+        })
+    }
+
+    private fun initAudioPlayer() {
+        val path = intent.data?.path
+        Log.e(TAG, "path=$path")
+        if (TextUtils.isEmpty(path)) return
+        audioPlayer = MediaPlayer()
+        audioPlayer.setDataSource(path)
+        audioPlayer.prepareAsync()
+        audioPlayer.setOnPreparedListener {
+            Log.e(TAG, "onPrepared...")
+            audioPlayer.start()
+            val duration = audioPlayer.duration
+            mHandler.obtainMessage(MSG_TIME).sendToTarget()
+            mHandler.obtainMessage(MSG_DURATION, duration).sendToTarget()
+        }
+    }
+
+    private fun isPlaying() :Boolean {
+        return audioPlayer.isPlaying
+    }
+
+    override fun onStop() {
+        super.onStop()
+        audioPlayer.stop()
+        audioPlayer.release()
+    }
+
+}

app/src/main/res/layout/activity_audio_play.xml

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:id="@+id/txt_title"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="50dp"
+        android:layout_centerHorizontal="true"
+        android:textColor="@color/colorPrimary"
+        android:textSize="18sp"/>
+
+    <TextView
+        android:id="@+id/txt_artist"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/txt_title"
+        android:layout_marginTop="10dp"
+        android:layout_centerHorizontal="true"
+        android:textColor="@color/colorPrimary"
+        android:textSize="18sp"/>
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/list_lyrics"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"/>
+
+    <RelativeLayout
+        android:id="@+id/layout_control"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="16dp"
+        android:layout_marginEnd="16dp"
+        android:layout_alignParentBottom="true"
+        android:layout_marginBottom="30dp">
+
+        <SeekBar
+            android:id="@+id/audio_bar"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="10dp"/>
+
+        <TextView
+            android:id="@+id/txt_time"
+            android:layout_below="@id/audio_bar"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignStart="@id/audio_bar"
+            android:textColor="@color/colorPrimary"/>
+
+        <TextView
+            android:id="@+id/txt_duration"
+            android:layout_below="@+id/audio_bar"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignEnd="@id/audio_bar"
+            android:textColor="@color/colorPrimary"/>
+
+        <ImageView
+            android:id="@+id/img_play"
+            android:layout_below="@+id/audio_bar"
+            android:layout_width="40dp"
+            android:layout_height="40dp"
+            android:layout_centerHorizontal="true"
+            android:src="@drawable/ic_pause"
+            android:contentDescription="@string/audio_play" />
+
+    </RelativeLayout>
+
+</RelativeLayout>