Music App

Develop Android Music application

Step 1.  Create a new Project.

Step 2.  Create an Activity

Step 3.  Go to the design view and select the Text Fields section in the Palette and locate Plain Text

Step 4.  Drag a Button from the Form Widgets section into the layout and design a GUI as given below.

Step 5. Switch to the Text view, XML layout file and verify that the file looks similar to the following listing.

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

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

          xmlns:tools="http://schemas.android.com/tools"

          android:layout_width="match_parent"

          android:layout_height="match_parent"

          android:paddingBottom="@dimen/activity_vertical_margin"

          android:paddingLeft="@dimen/activity_horizontal_margin"

          android:paddingRight="@dimen/activity_horizontal_margin"

          android:paddingTop="@dimen/activity_vertical_margin"

          tools:context="idamithw.music.MainActivity"

          android:id="@+id/meia"

          android:background="@drawable/road">

          <LinearLayout

          android:orientation="horizontal"

          android:layout_width="match_parent"

          android:layout_height="match_parent"

          android:layout_alignParentTop="true"

          android:layout_alignParentLeft="true"

          android:layout_alignParentStart="true">

          <Button

          android:layout_width="wrap_content"

          android:layout_height="wrap_content"

          android:text="PLAY"

          android:id="@+id/button2"

          android:onClick="playButtnClicked"

          android:layout_alignParentTop="true"

          android:layout_gravity="bottom" />

          <Button

          android:layout_width="wrap_content"

          android:layout_height="wrap_content"

          android:text="Pause"

          android:id="@+id/button"

          android:layout_centerVertical="true"

          android:layout_alignParentLeft="true"

          android:layout_alignParentStart="true"

          android:layout_gravity="bottom"

          android:onClick="PauseButtonClicked"/>

          <Button

          android:layout_width="wrap_content"

          android:layout_height="wrap_content"

          android:text="Stop"

          android:id="@+id/button3"

          android:layout_gravity="bottom"

          android:onClick="StopButonClicked"/>

          </LinearLayout>

</RelativeLayout>

Step 6. Change your MainActivity class as given in this sample. Note that onClick will be called based on the OnClick property of your button.

import android.media.MediaPlayer;
import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

public class MainActivity extends AppCompatActivity {

          MediaPlayer mp ;

          @Override

          protected void onCreate(Bundle savedInstanceState) {

                   super.onCreate(savedInstanceState);

                   setContentView(R.layout.activity_main);
                   redyToPlay();

          }

          public void redyToPlay()

          {

                   mp = MediaPlayer.create(this,R.raw.we);

          }

          public void playButtnClicked(View view) {

                   mp.start();

          }

            public void PauseButtonClicked(View view) {

                    mp.pause();

          }

            public void StopButonClicked(View view) {

                   mp.stop();

                   redyToPlay();

          }

}