[Kotlin] MediaPlayer

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.jwsoft.kotlinproject">

    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:usesCleartextTraffic="true"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

<uses-permission android:name="android.permission.INTERNET"/>  인터넷 권한 추가

android:usesCleartextTraffic="true"  추가 (에뮬레이터에서 실행하기 위함)

 

 

 

 

 

 

MainActivity.kt

package com.jwsoft.kotlinproject

import android.media.MediaPlayer
import android.net.Uri
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.SurfaceHolder

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        // 소리만 들리는 플레이어 방법 1
        var mediaPlayer = MediaPlayer()
        mediaPlayer.setDataSource("http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4")
        mediaPlayer.prepare()
        mediaPlayer.start()

        // 소리만 들리는 플레이어 방법 2
        var uri = Uri.parse("http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4")
        var mediaPlayer2 = MediaPlayer.create(this, uri)
        mediaPlayer2.start()

        // 소리만 들리는 플레이어 방법 3
        var mediaPlayer3 = MediaPlayer.create(this, R.raw.sample)
        mediaPlayer3.start()

    }

}

실행하면 소리만 재생된다.

 

 

 

 

 

 

 

---

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="10dp"
    tools:context=".MainActivity">

    <SurfaceView
        android:id="@+id/surfaceView"
        android:layout_width="400dp"
        android:layout_height="240dp"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>

activity_main.xml

 

 

 

 

 

Activity_main.xml

package com.jwsoft.kotlinproject

import android.media.MediaPlayer
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.util.Log
import android.view.SurfaceHolder
import kotlinx.android.synthetic.main.activity_main.*
import java.lang.Exception

class MainActivity : AppCompatActivity(), SurfaceHolder.Callback {

    private lateinit var surfaceHolder: SurfaceHolder
    private lateinit var mediaPlayer: MediaPlayer

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        mediaPlayer = MediaPlayer()
        surfaceHolder = surfaceView.holder
        surfaceHolder.addCallback(this)

    }

    override fun surfaceCreated(holder: SurfaceHolder?) {
        try {

            mediaPlayer.setDataSource("http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4")
            mediaPlayer.setDisplay(holder)
            mediaPlayer.prepare()
            mediaPlayer.start()

        } catch (e: Exception) {
            Log.e("", e.toString())
        }
    }

    override fun surfaceChanged(holder: SurfaceHolder?, format: Int, width: Int, height: Int) {

    }

    override fun surfaceDestroyed(holder: SurfaceHolder?) {

    }

    override fun onDestroy() {
        super.onDestroy()
        mediaPlayer.release()
    }

}

실행 결과