How to play YouTube video in my Android application?

This is the btn click event

btnvideo.setOnClickListener(new OnClickListener() {public void onClick(View v) {    startActivity(new Intent(Intent.ACTION_VIEW,Uri.parse("http://www.youtube.com/watch?v=Hxy8BZGQ5Jo")));    Log.i("Video", "Video Playing....");    }}); 

this type it opened in another page with the youtube where u can show your video

Steps

1. Create a new Activity, for your player(fullscreen) screen with menu options. Run the mediaplayer and UI in different threads.

2. For playing media - In general to play audio/video there is mediaplayer api in android. FILE_PATH is the path of file - may be url(youtube) stream or local file path

    MediaPlayer mp = new MediaPlayer();    mp.setDataSource(FILE_PATH);    mp.prepare();    mp.start();

Also check: Android YouTube app Play Video Intenthave already discussed this in detail.

Use YouTube Android Player API.

activity_main.xml:

 <?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:id="@+id/activity_main"android:layout_width="match_parent"android:layout_height="match_parent"tools:context="com.example.andreaskonstantakos.vfy.MainActivity"><com.google.android.youtube.player.YouTubePlayerView    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:visibility="visible"    android:layout_centerHorizontal="true"    android:id="@+id/youtube_player"    android:layout_alignParentTop="true" /><Buttonandroid:text="Button"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignParentBottom="true"android:layout_centerHorizontal="true"android:layout_marginBottom="195dp"android:visibility="visible"android:id="@+id/button" /></RelativeLayout>

MainActivity.java:

package com.example.andreaskonstantakos.vfy;import android.os.Bundle;import android.view.View;import android.widget.Button;import com.google.android.youtube.player.YouTubeBaseActivity;import com.google.android.youtube.player.YouTubeInitializationResult;import com.google.android.youtube.player.YouTubePlayer;import com.google.android.youtube.player.YouTubePlayerView;public class MainActivity extends YouTubeBaseActivity {YouTubePlayerView youTubePlayerView;Button button;YouTubePlayer.OnInitializedListener onInitializedListener;@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);     youTubePlayerView = (YouTubePlayerView) findViewById(R.id.youtube_player);     button = (Button) findViewById(R.id.button);     onInitializedListener = new YouTubePlayer.OnInitializedListener(){         @Override         public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer youTubePlayer, boolean b) {            youTubePlayer.loadVideo("Hce74cEAAaE");             youTubePlayer.play();     }         @Override         public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult youTubeInitializationResult) {         }     };    button.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {youTubePlayerView.initialize(PlayerConfig.API_KEY,onInitializedListener);        }    });}}

and the PlayerConfig.java class:

    package com.example.andreaskonstantakos.vfy;/** * Created by Andreas Konstantakos on 13/4/2017. */public class PlayerConfig {PlayerConfig(){}public static final String API_KEY = "xxxxx";}

Replace the "Hce74cEAAaE" with your video ID from https://www.youtube.com/watch?v=Hce74cEAAaE.Get your API_KEY from Console.developers.google.com and also replace it on the PlayerConfig.API_KEY.For any further information you can follow the following tutorial step by step:https://www.youtube.com/watch?v=3LiubyYpEUk