# Webview Development

For webview we need to enable following settings

```
WebView webView = new WebView(getContext());
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
webSettings.setSupportMultipleWindows(true);
```

The next step should be actual handling of opening of the request new window. It's handled via WebChromeClient.onCreateWindow. Here some code example

```
@Override
public boolean onCreateWindow(WebView view, boolean isDialog, boolean isUserGesture, Message resultMsg) {
WebView webView = new WebView(mContext);
//add webView to your view hierarchy
    WebView.WebViewTransport transport = (WebView.WebViewTransport) resultMsg.obj;
transport.setWebView(webView);
resultMsg.sendToTarget();
return true;
}

//Also don't forget to handle closing of the webview when page requested it in WebChromeClient.onCloseWindow.
//Handling of the URI related to specific app schema can be done in WebViewClient.shouldOverrideUrlLoading (looks like we have this as one of the share option). 
//For example

@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// if the url scheme is one of the following - do not override the url loading
    if (URLUtil.isNetworkUrl(url.toLowerCase())) {
return false;
} else {
// try to launch app
Uri uri = Uri.parse(url);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
return true;
}
}

```

**Use video player in webview**

{% hint style="info" %}
Implementation needs WebChromeClientCustomPoster implementation and to attach it into your webview as shown in the example below**.**
{% endhint %}

```
import android.graphics.Bitmap;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
 
public class PlayerActivity extends AppCompatActivity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_player);
		WebView.setWebContentsDebuggingEnabled(true);
		WebView v = this.findViewById(R.id.playerWebView);
		v.setWebChromeClient(new WebChromeClientCustomPoster());
		WebSettings webSettings = v.getSettings();
		webSettings.setDomStorageEnabled(true);
		webSettings.setJavaScriptEnabled(true);
 
      /**
         * Make sure to apply this on the webview settings.
         * Required for auto play without user gesture in some scenarios.
         */
        webSettings.setMediaPlaybackRequiresUserGesture(false);
		v.loadUrl("https://someurl.com");
    }
 
    /**
     * This will hide the default webview video poster (gray play square)
     * Make sure you are setting the web chrome client on the WebView instance
     * With this one. e.g.   webViewInstance.setWebChromeClient(newWebChromeClientCustomPoster());
     */
    private class WebChromeClientCustomPoster extends WebChromeClient {
 
        @Override
        public Bitmap getDefaultVideoPoster() {
            return Bitmap.createBitmap(10, 10, Bitmap.Config.ARGB_8888);
        }
    }
}

```