LuizGadao/MainActivityFragment.java

## MainActivityFragment.java
package br.com.mytest.luizgadao.testyoutubewebview;

import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.FrameLayout;

/**
 * A placeholder fragment containing a simple view.
 */
public class MainActivityFragment extends Fragment {

    private WebView webView;
    private FrameLayout customViewContainer;
    private WebChromeClient.CustomViewCallback customViewCallback;
    private View mCustomView;
    private myWebChromeClient mWebChromeClient;
    private myWebViewClient mWebViewClient;

    public MainActivityFragment() {
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_main, container, false);
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        customViewContainer = (FrameLayout) getView().findViewById(R.id.customViewContainer);
        webView = (WebView) getView().findViewById(R.id.webView);

        mWebViewClient = new myWebViewClient();
        webView.setWebViewClient(mWebViewClient);

        mWebChromeClient = new myWebChromeClient();
        webView.setWebChromeClient(mWebChromeClient);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.getSettings().setAppCacheEnabled(true);
        webView.getSettings().setBuiltInZoomControls(true);
        webView.getSettings().setSaveFormData(true);

        String playVideo= "<html><body><iframe class=\"youtube-player\" type=\"text/html\" width=\"100%\" height=\"100%\" src=\"https://www.youtube.com/embed/-eFM737WnHE\" frameborder=\"0\"></body></html>";
        webView.loadData(playVideo, "text/html", "utf-8");
    }

    class myWebViewClient extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            return super.shouldOverrideUrlLoading(view, url);    //To change body of overridden methods use File | Settings | File Templates.
        }
    }


    class myWebChromeClient extends WebChromeClient {
        private Bitmap mDefaultVideoPoster;
        private View mVideoProgressView;

        @Override
        public void onShowCustomView(View view, int requestedOrientation, CustomViewCallback callback) {
            onShowCustomView(view, callback);    //To change body of overridden methods use File | Settings | File Templates.
        }

        @Override
        public void onShowCustomView(View view,CustomViewCallback callback) {

            // if a view already exists then immediately terminate the new one
            if (mCustomView != null) {
                callback.onCustomViewHidden();
                return;
            }
            mCustomView = view;
            webView.setVisibility(View.GONE);
            customViewContainer.setVisibility(View.VISIBLE);
            customViewContainer.addView(view);
            customViewCallback = callback;
        }

        @Override
        public View getVideoLoadingProgressView() {

            if (mVideoProgressView == null) {
                LayoutInflater inflater = LayoutInflater.from(getContext());
                //mVideoProgressView = inflater.inflate(R.layout.video_progress, null);
            }
            return mVideoProgressView;
        }

        @Override
        public void onHideCustomView() {
            super.onHideCustomView();    //To change body of overridden methods use File | Settings | File Templates.
            if (mCustomView == null)
                return;

            webView.setVisibility(View.VISIBLE);
            customViewContainer.setVisibility(View.GONE);

            // Hide the custom view.
            mCustomView.setVisibility(View.GONE);

            // Remove the custom view from its container.
            customViewContainer.removeView(mCustomView);
            customViewCallback.onCustomViewHidden();

            mCustomView = null;
        }
    }
}
	package br.com.mytest.luizgadao.testyoutubewebview;

	import android.graphics.Bitmap;
	import android.os.Bundle;
	import android.support.v4.app.Fragment;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.ViewGroup;
	import android.webkit.WebChromeClient;
	import android.webkit.WebView;
	import android.webkit.WebViewClient;
	import android.widget.FrameLayout;

	/**
	* A placeholder fragment containing a simple view.
	*/
	public class MainActivityFragment extends Fragment {

	private WebView webView;
	private FrameLayout customViewContainer;
	private WebChromeClient.CustomViewCallback customViewCallback;
	private View mCustomView;
	private myWebChromeClient mWebChromeClient;
	private myWebViewClient mWebViewClient;

	public MainActivityFragment() {
	}

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
	Bundle savedInstanceState) {
	return inflater.inflate(R.layout.fragment_main, container, false);
	}

	@Override
	public void onViewCreated(View view, Bundle savedInstanceState) {
	super.onViewCreated(view, savedInstanceState);

	customViewContainer = (FrameLayout) getView().findViewById(R.id.customViewContainer);
	webView = (WebView) getView().findViewById(R.id.webView);

	mWebViewClient = new myWebViewClient();
	webView.setWebViewClient(mWebViewClient);

	mWebChromeClient = new myWebChromeClient();
	webView.setWebChromeClient(mWebChromeClient);
	webView.getSettings().setJavaScriptEnabled(true);
	webView.getSettings().setAppCacheEnabled(true);
	webView.getSettings().setBuiltInZoomControls(true);
	webView.getSettings().setSaveFormData(true);

	String playVideo= "<html><body><iframe class=\"youtube-player\" type=\"text/html\" width=\"100%\" height=\"100%\" src=\"https://www.youtube.com/embed/-eFM737WnHE\" frameborder=\"0\"></body></html>";
	webView.loadData(playVideo, "text/html", "utf-8");
	}

	class myWebViewClient extends WebViewClient {
	@Override
	public boolean shouldOverrideUrlLoading(WebView view, String url) {
	return super.shouldOverrideUrlLoading(view, url); //To change body of overridden methods use File \| Settings \| File Templates.
	}
	}


	class myWebChromeClient extends WebChromeClient {
	private Bitmap mDefaultVideoPoster;
	private View mVideoProgressView;

	@Override
	public void onShowCustomView(View view, int requestedOrientation, CustomViewCallback callback) {
	onShowCustomView(view, callback); //To change body of overridden methods use File \| Settings \| File Templates.
	}

	@Override
	public void onShowCustomView(View view,CustomViewCallback callback) {

	// if a view already exists then immediately terminate the new one
	if (mCustomView != null) {
	callback.onCustomViewHidden();
	return;
	}
	mCustomView = view;
	webView.setVisibility(View.GONE);
	customViewContainer.setVisibility(View.VISIBLE);
	customViewContainer.addView(view);
	customViewCallback = callback;
	}

	@Override
	public View getVideoLoadingProgressView() {

	if (mVideoProgressView == null) {
	LayoutInflater inflater = LayoutInflater.from(getContext());
	//mVideoProgressView = inflater.inflate(R.layout.video_progress, null);
	}
	return mVideoProgressView;
	}

	@Override
	public void onHideCustomView() {
	super.onHideCustomView(); //To change body of overridden methods use File \| Settings \| File Templates.
	if (mCustomView == null)
	return;

	webView.setVisibility(View.VISIBLE);
	customViewContainer.setVisibility(View.GONE);

	// Hide the custom view.
	mCustomView.setVisibility(View.GONE);

	// Remove the custom view from its container.
	customViewContainer.removeView(mCustomView);
	customViewCallback.onCustomViewHidden();

	mCustomView = null;
	}
	}
	}