Android get programmatically created view's width

Question

I have TextView created programmatically, like that:

                TextView mTextView = new TextView(getApplicationContext());

                final LayoutPar         


        

Answer 1

You have to use ViewTreeObserver class which is used to register listeners that can be notified of global changes in the view tree. Such global events include, but are not limited to, layout of the whole tree, beginning of the drawing pass, touch mode change.

In the Activity's onCreate mehotd put this:

ViewTreeObserver vto = mTextView.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
    @Override
    public void onGlobalLayout() {
        mTextView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
        int viewWidth = mTextView.getMeasuredWidth();

    }
});