ChromeCast Sender  Android Application Tutorial (How to Create a chrome Cast application)

Code Source -> Source
Follwing Questions can be answerd in this tutorial

How to get default cast player ID
How to use Cast button on another place then top bar
Easy to Use Cast


Requirements

Just need cast Companion library and place it in same directry as your project

https://github.com/googlecast/CastCompanionLibrary-android

Step1:
Make a new android studio Project
Open Settings File and place follwoing line of code in it

include ':CastCompanionLibrary-android'
project(':CastCompanionLibrary-android').projectDir = new File(rootDir, '../CastCompanionLibrary-android')

Step 2:
Open androidManifiest file and place following code inside it

Permissions

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

CastCompanion Services and activities in manifiest
-> Just chnage the name of parent in below code


        <receiver android:name="com.google.android.libraries.cast.companionlibrary.remotecontrol.VideoIntentReceiver" >
            <intent-filter>
                <action android:name="android.media.AUDIO_BECOMING_NOISY" />
                <action android:name="android.intent.action.MEDIA_BUTTON" />
                <action android:name="com.google.android.libraries.cast.companionlibrary.action.toggleplayback" />
                <action android:name="com.google.android.libraries.cast.companionlibrary.action.stop" />
            </intent-filter>
        </receiver>

        <service
            android:name="com.google.android.libraries.cast.companionlibrary.notification.VideoCastNotificationService"
            android:exported="false" >
            <intent-filter>
                <action android:name="com.google.android.libraries.cast.companionlibrary.action.toggleplayback" />
                <action android:name="com.google.android.libraries.cast.companionlibrary.action.stop" />
                <action android:name="com.google.android.libraries.cast.companionlibrary.action.notificationvisibility" />
            </intent-filter>
        </service>

        <service android:name="com.google.android.libraries.cast.companionlibrary.cast.reconnection.ReconnectionService"/>


        <activity
            android:name="com.google.android.libraries.cast.companionlibrary.cast.player.VideoCastControllerActivity"
            android:label="@string/app_name"
            android:launchMode="singleTask"
            android:theme="@style/Theme.AppCompat.Light.NoActionBar"
            android:parentActivityName="com.example.tahir.castapplication.CastActivity"
            android:screenOrientation="portrait" >
            <meta-data
                android:name="android.support.PARENT_ACTIVITY"
                android:value="com.example.tahir.castapplication.CastActivity" />

            <intent-filter>
                <onacti: androidname="android.intent.action.MAIN" />
            </intent-filter>
        </activity>


Step 3:
Create a new class and Extends it to Application
Paste followings lines in onCreate of Application Class

    public void onCreate() {
        super.onCreate();

        VideoCastManager.
                initialize(this, CastMediaControlIntent.DEFAULT_MEDIA_RECEIVER_APPLICATION_ID, null, null).
                setVolumeStep(0.5).
                enableFeatures(VideoCastManager.FEATURE_NOTIFICATION |
                        VideoCastManager.FEATURE_LOCKSCREEN |
                        VideoCastManager.FEATURE_WIFI_RECONNECT |
                        VideoCastManager.FEATURE_CAPTIONS_PREFERENCE)
        ;

    }

This is the line use to get Default media Player ID in Receiver

CastMediaControlIntent.DEFAULT_MEDIA_RECEIVER_APPLICATION_ID




Open Your Activity XML file and place following code for the button

<android.support.v7.app.MediaRouteButton
        android:id="@+id/media_route_button"
        android:layout_width="wrap_content"
        android:layout_alignParentTop="true"
        android:background="@android:color/transparent"
        android:layout_height="wrap_content"
        android:mediaRouteTypes="user"

        />

If you want to show button in Menu Bar , Paste follwing code in menu file

    <item
        android:id="@+id/media_route_menu_item"
        android:title="Cast"
        app:actionProviderClass="android.support.v7.app.MediaRouteActionProvider"
        app:showAsAction="always"/>



Step4:
Now open Activity class to register Cll backs


onCreate
 mCastManager = VideoCastManager.getInstance();

        // -- Adding MiniController
        mMini = (MiniController) findViewById(R.id.miniController);
        mCastManager.addMiniController(mMini);
        mCastManager.addMediaRouterButton(mediaRoutebtn);
        mCastConsumer = new VideoCastConsumerImpl() {


            @Override
            public void onApplicationConnected(ApplicationMetadata appMetadata, String sessionId, boolean wasLaunched) {

                Toast.makeText(CastActivity.this,"Successfully Connected to Receiver Application", Toast.LENGTH_LONG).show();
                super.onApplicationConnected(appMetadata, sessionId, wasLaunched);
            }

            @Override
            public void onFailed(int resourceId, int statusCode) {

            }

            @Override
            public void onConnectionSuspended(int cause) {
            }

            @Override
            public void onConnectivityRecovered() {

            }

            @Override
            public void onCastDeviceDetected(final MediaRouter.RouteInfo info) {

            }

            @Override
            public void onConnectionFailed(ConnectionResult result) {
            }
        };

        mCastManager.reconnectSessionIfPossible(20);



Line of code to add button on anywhere

        mCastManager.addMediaRouterButton(mediaRoutebtn);

OnResume:
protected void onResume() {
        super.onResume();

        mCastManager = VideoCastManager.getInstance();
        mCastManager.addVideoCastConsumer(mCastConsumer);
        mCastManager.incrementUiCounter();

    }

OnPause


protected void onPause() {

        mCastManager.decrementUiCounter();
        mCastManager.removeVideoCastConsumer(mCastConsumer);

        super.onPause();
    }

onDestroy


 protected void onDestroy() {
        super.onDestroy();
        if (null != mCastManager) {
            mMini.removeOnMiniControllerChangedListener(mCastManager);
            if(mMini != null) {
                mCastManager.removeMiniController(mMini);
            }
        }
    }


Code to add button in onOptionItems

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_cast, menu);
        mediaRouteMenuItem = mCastManager.
                addMediaRouterButton(menu, R.id.media_route_menu_item);
        return true;
    }

Now you need to have a function which will start casting any mp4 on you device

    private void startCast(){
        MediaMetadata mediaMetadata = new MediaMetadata( MediaMetadata.MEDIA_TYPE_MOVIE );

        mediaMetadata.putString( MediaMetadata.KEY_TITLE, "Main Title");
        mediaMetadata.putString( MediaMetadata.KEY_SUBTITLE, "Sub Title");

            mediaMetadata.addImage(new WebImage(Uri.parse(""))); // Cast Icon
            mediaMetadata.addImage(new WebImage(Uri.parse(""))); // Wallper


        MediaInfo mediaInfo = new MediaInfo.Builder(urlField.getText().toString())
                .setContentType("video/mp4") //for live -> "application/vnd.apple.mpegurl"
                .setStreamType(MediaInfo.STREAM_TYPE_BUFFERED ) // Repplace for live -> MediaInfo.STREAM_TYPE_LIVE
                .setMetadata(mediaMetadata)
                .build();


        Bundle bundles = com.google.android.libraries.cast.companionlibrary.utils.Utils.mediaInfoToBundle(mediaInfo);



        mCastManager.startVideoCastControllerActivity(CastActivity.this,bundles,0,true);
    }

If you have any Question let me know,

Source is also attached with the tutorial    Code Source