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copied!<p>You should add your videoview (or content Parent) as last element in your layout file. and use the next code:</p> <pre><code>private RelativeLayout.LayoutParams paramsNotFullscreen; //if you're using RelativeLatout @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) //To fullscreen { paramsNotFullscreen=(RelativeLayout.LayoutParams)mVideoView.getLayoutParams(); RelativeLayout.LayoutParams params=new LayoutParams(paramsNotFullscreen); params.setMargins(0, 0, 0, 0); params.height=ViewGroup.LayoutParams.MATCH_PARENT; params.width=ViewGroup.LayoutParams.MATCH_PARENT; params.addRule(RelativeLayout.CENTER_IN_PARENT); mVideoView.setLayoutParams(params); } else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT) { mVideoView.setLayoutParams(paramsNotFullscreen); } } </code></pre> <p>It gets a copy of videoview layoutparams and saves it in a global variable. then creates a new layoutparams object with the previous values but setting now the limits to match_parent and sets it in your videoview. You videoview now is in fullscreen. When you put your device in portrait, paramsNotFullscreen restores previous values.</p> <p><strong>UPDATE:</strong></p> <p>In your manifest file you must add into Activity declaration the following code to avoid the activity restart:</p> <pre><code>android:configChanges="screenLayout|screenSize|orientation" </code></pre>

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