⦁ Create an MP3 player application by using services and design

المؤلفPosted at

 activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android=""

    xmlns:app=""

    xmlns:tools=""

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:background="@drawable/button"

    tools:context=".MainActivity">


    <TextView

        android:id="@+id/textView"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_marginBottom="650dp"

        android:text="Mp3 PLayer!"

        android:textAlignment="center"

        android:textColor="@color/Lightpink"

        android:textSize="20dp"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintLeft_toLeftOf="parent"

        app:layout_constraintRight_toRightOf="parent"

        app:layout_constraintTop_toTopOf="parent" />


    <ImageView

        android:id="@+id/imageView"

        android:layout_width="35dp"

        android:layout_height="35dp"

        android:layout_marginLeft="90dp"

        android:layout_marginBottom="650dp"

        android:src="@drawable/ic_baseline_playlist_play_24"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toEndOf="@+id/textView"

        app:layout_constraintTop_toTopOf="parent" />


    <ImageView

        android:id="@+id/imageView3"

        android:layout_width="24dp"

        android:layout_height="24dp"

        android:layout_marginRight="340dp"

        android:layout_marginBottom="650dp"

        android:src="@drawable/ic_baseline_reorder_24"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toStartOf="parent"

        app:layout_constraintTop_toTopOf="parent" />


    <androidx.cardview.widget.CardView

        android:id="@+id/cardView2"

        android:layout_width="390dp"

        android:layout_height="120dp"

        android:layout_marginTop="170dp"

        app:cardCornerRadius="28dp"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toStartOf="parent"

        app:layout_constraintTop_toTopOf="parent">


        <ImageView

            android:layout_width="390dp"

            android:layout_height="120dp"

            android:src="@color/Blackshade"

            app:layout_constraintBottom_toBottomOf="parent"

            app:layout_constraintEnd_toEndOf="parent"

            app:layout_constraintStart_toStartOf="parent"

            app:layout_constraintTop_toBottomOf="@+id/cardView" />


        <TextView

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:layout_marginLeft="45dp"

            android:layout_marginTop="55dp"

            android:text="KING"

            android:textColor="@color/grey"

            android:textSize="17dp" />


        <TextView

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:layout_marginLeft="45dp"

            android:layout_marginTop="80dp"

            android:text="The carnival"

            android:textColor="@color/black" />


        <ImageView

            android:layout_width="40dp"

            android:layout_height="30dp"

            android:layout_marginLeft="320dp"

            android:layout_marginTop="60dp"

            android:src="@drawable/like" />


    </androidx.cardview.widget.CardView>



    <androidx.cardview.widget.CardView

        android:id="@+id/cardView"

        android:layout_width="350dp"

        android:layout_height="350dp"

        android:layout_marginBottom="220dp"

        app:cardCornerRadius="20dp"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toStartOf="parent"

        app:layout_constraintTop_toTopOf="parent">


        <ImageView

            android:layout_width="350dp"

            android:layout_height="350dp"

            android:layout_marginBottom="230dp"

            android:src="@drawable/king"

            app:layout_constraintBottom_toBottomOf="parent"

            app:layout_constraintEnd_toEndOf="parent"

            app:layout_constraintStart_toStartOf="parent"

            app:layout_constraintTop_toTopOf="parent" />

    </androidx.cardview.widget.CardView>


    <ImageView

        android:layout_width="300dp"

        android:layout_height="100dp"

        android:src="@drawable/group"

        app:layout_constraintBottom_toTopOf="@+id/linearLayout"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toStartOf="parent"

        app:layout_constraintTop_toBottomOf="@+id/cardView2" />



   <!-- <androidx.appcompat.widget.AppCompatSeekBar

        android:id="@+id/seekBar"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        app:layout_constraintBottom_toTopOf="@+id/linearLayout"

        app:layout_constraintTop_toBottomOf="@+id/cardView2" />


    <TextView

        android:id="@+id/tv_pass"

        android:layout_width="50dp"

        android:layout_height="wrap_content"

        android:layout_marginBottom="12dp"

        android:layout_marginLeft="20dp"

        app:layout_constraintBottom_toTopOf="@+id/linearLayout"

        app:layout_constraintStart_toStartOf="parent"

        app:layout_constraintTop_toBottomOf="@+id/seekBar" />


    <TextView

        android:id="@+id/tv_due"

        android:layout_width="50dp"

        android:layout_height="wrap_content"

        android:layout_marginBottom="12dp"

        android:layout_marginRight="20dp"

        app:layout_constraintBottom_toTopOf="@+id/linearLayout"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintTop_toBottomOf="@+id/seekBar" />-->


    <LinearLayout

        android:id="@+id/linearLayout"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="650dp"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toStartOf="parent"

        app:layout_constraintTop_toTopOf="parent">


        <ImageView

            android:id="@+id/repeat"

            android:layout_width="32dp"

            android:layout_height="32dp"

            android:layout_marginLeft="50dp"

            android:layout_marginTop="20dp"

            android:layout_marginRight="30dp"

            android:src="@drawable/repeat" />


        <ImageView

            android:id="@+id/backwrad"

            android:layout_width="32dp"

            android:layout_height="32dp"

            android:layout_marginTop="20dp"

            android:layout_marginRight="25dp"

            android:src="@drawable/backward" />


        <ImageView

            android:id="@+id/play"

            android:layout_width="65dp"

            android:layout_height="65dp"

            android:layout_marginBottom="15dp"

            android:background="@drawable/circle"

            android:src="@drawable/ic_baseline_play_arrow_24"

            app:layout_constraintBottom_toBottomOf="parent"

            app:layout_constraintEnd_toEndOf="parent"

            app:layout_constraintStart_toStartOf="parent" />


        <ImageView

            android:id="@+id/forward"

            android:layout_width="35dp"

            android:layout_height="35dp"

            android:layout_marginLeft="34dp"

            android:layout_marginTop="17dp"

            android:src="@drawable/forward" />


        <ImageView

            android:id="@+id/stop"

            android:layout_width="50dp"

            android:layout_height="50dp"

            android:layout_marginLeft="15dp"

            android:layout_marginTop="8dp"

            android:src="@drawable/stop" />

    </LinearLayout>



</androidx.constraintlayout.widget.ConstraintLayout>



Mainactivity.kt

package com.example.musicplayer


import android.annotation.SuppressLint

import android.content.Intent

import android.media.MediaPlayer

import androidx.appcompat.app.AppCompatActivity

import android.os.Bundle

import android.os.Handler

import android.widget.*


//import kotlinx.android.synthetic.main.activity_main.*

private lateinit var mediaPlayer: MediaPlayer

private lateinit var runnable:Runnable

private var handler: Handler = Handler()

private var pause:Boolean = false


class MainActivity : AppCompatActivity() {

    @SuppressLint("WrongViewCast")

    override fun onCreate(savedInstanceState: Bundle?) {

        super.onCreate(savedInstanceState)

        setContentView(R.layout.activity_main)



        var playBtn = findViewById<ImageView>(R.id.play)

        var pauseBtn = findViewById<ImageView>(R.id.repeat)

        var stopBtn = findViewById<ImageView>(R.id.stop)


        playBtn.setOnClickListener {

            Toast.makeText(this, "play", Toast.LENGTH_LONG).show()

            var intent: Intent = Intent(applicationContext, Mediaservice::class.java)

            intent.putExtra("service1", "play")

            startService(intent)

        }



        pauseBtn.setOnClickListener {

            Toast.makeText(this, "pause", Toast.LENGTH_LONG).show()

            var intent: Intent = Intent(applicationContext, Mediaservice::class.java)

            intent.putExtra("service1", "pause")

            startService(intent)

        }



        stopBtn.setOnClickListener {

            Toast.makeText(this, "stop", Toast.LENGTH_LONG).show()

            var intent: Intent = Intent(applicationContext, Mediaservice::class.java)

            intent.putExtra("service1", "stop")

            stopService(intent)

        }

    }

}


Mediaservice.kt

package com.example.musicplayer


import android.app.Service

import android.content.Intent

import android.media.MediaPlayer

import android.os.IBinder


class Mediaservice : Service() {

    lateinit var mediaplayer: MediaPlayer

    override fun onBind(intent: Intent): IBinder {

        TODO("Return the communication channel to the service.")

    }


    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {

        if (!this::mediaplayer.isInitialized) {

            mediaplayer = MediaPlayer.create(this, R.raw.song)

        }

        var string1: String? = intent!!.getStringExtra("service1")

        if (string1 == "play")

            mediaplayer.start()


        else if (string1 == "pause") {

            mediaplayer.pause()

        }

        return START_STICKY

    }


    override fun onDestroy() {

        mediaplayer.stop()

        super.onDestroy()

    }

}


AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android=""

    xmlns:tools=""

    package="com.example.musicplayer">


    <application

        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">

        <service

            android:name=".Mediaservice"

            android:enabled="true"

            android:exported="true"></service>


        <activity

            android:name=".MainActivity"

            android:theme="@style/Theme.AppCompat.NoActionBar">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />


                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>


</manifest>


Button.xml

<?xml version="1.0" encoding="utf-8"?>

<selector xmlns:android="">

<item>

    <shape>

        <gradient

            android:startColor="#232323"

            android:endColor="@color/Brown"

            android:type="linear"/>

    </shape>

</item>

</selector>


Circle.xml

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android=""

    android:shape="oval">

    <solid android:color="@color/Blackshade"></solid>

</shape>


Image.xml

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android="">

    <solid android:color="@color/Blackshade" />

    <corners android:bottomRightRadius="20dp"

        android:bottomLeftRadius="20dp"

        android:topRightRadius="20dp"

        android:topLeftRadius="20dp"/>

</shape>


Color.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>

    <color name="colorPrimary">#6200EE</color>

    <color name="colorPrimaryDark">#3700B3</color>

    <color name="colorAccent">#03DAC5</color>

    <color name="Brown">#563429</color>

    <color name="Lightpink">#f4e3dd</color>

    <color name="Blackshade">#191919</color>

    <color name="grey">#d1d1d1</color>

    <color name="black">#4d4d4d</color>

</resources>


String.xml

<resources>

    <string name="app_name">MusicPlayer</string>

</resources>



Style.xml

<resources>

    <!-- Base application theme. -->

    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">

        <!-- Customize your theme here. -->

        <item name="colorPrimary">@color/colorPrimary</item>

        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>

        <item name="colorAccent">@color/colorAccent</item>

    </style>


</resources>


In also add one directory for music raw file.


Output:-








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