android redraw layout programmatically

Question

My layout sometimes does not position elements properly. I tried a lot of solutions but unique working one is rotate from portrait to landscape and then return from landscape to portrait. Then layout is automaticaly redrawed and fits perfectly. I set orientation|keyboard so content is not reloaded, only redrawed. How to redraw content programmaticaly like landscape-portrait does? Thank you.

EDIT: I tried following and has no effect

getWindow().getDecorView().findViewById(android.R.id.content).invalidate();
getWindow().getDecorView().findViewById(android.R.id.content).requestLayout();

Activity has set main layout on onCreate setContentView(R.layout.main);

Layout "main" contains a TabHost and Admob. Layout "view" contains a webview ("id:myWebview") that is shown on tab1.

And also tried to invalidate them! webview, layout main and layout view and crashes

Answer 1

Did you try to invalidate() the root view?

findViewById(android.R.id.content).invalidate();

This should redraw the whole layout.

Answer 2

When screen orientation changes, Android recreates the current Activity.

Try calling measure(int, int) or requestLayout(). Otherwise there is no chance to programmatically relayout views.