replace layout on orientation change

Question

My app has a webview and some buttons inside a LinerLayout.

the problem is, I want the buttons to be on bottom in portrait mode and on left in landscape mode while t

Answer 1

Make your view a relative layout. When the orientation changes just adjust the layout params for each view in code. Have your buttons be contained in a linear layout

As in..

Portrait

LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
lp.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
buttonLinearLayout.setOrientation(LinearLayout.HORIZONTAL);
buttonLinearLayout.setLayoutParams(lp);


LayoutParams webParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
lp.addRule(RelativeLayout.ABOVE, R.id.buttons);
webView.setLayoutParams(webParams);

Landscape

LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
lp.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
buttonLinearLayout.setOrientation(LinearLayout.VERTICAL);
buttonLinearLayout.setLayoutParams(lp);


LayoutParams webParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
lp.addRule(RelativeLayout.TO_RIGHT_OF, R.id.buttons);
webView.setLayoutParams(webParams);

Make sure the LayoutParams you are using are the RelativeLayout params (always use the Layoutparams of the view's parent)