How does one create Buttons with Equal Widths?

Question

I want to display three buttons in the middle of a screen, and have the three buttons all be the same width, though they will have text labels of different lengths.

Answer 1

Just one additional note from my side!

If you will need to set the width (or height) for the buttons (or any other views with a simple changes of code) that are added at runtime, you can use the code below (it does not depend on orientation):

public void AlignButtons(){
    llModules = (LinearLayout) findViewById(R.id.llModules);

    ViewTreeObserver viewTree = llModules.getViewTreeObserver();
    viewTree.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
        public boolean onPreDraw() {

            int childcount = llModules.getChildCount();
            int maxWidth = 0; //int maxHeight = 0;

            String fontPath = "fonts/Isabella-Decor.ttf";
            Typeface tf = Typeface.createFromAsset(getAssets(), fontPath);

            for (int i = 0; i < childcount; i++) {
                LinearLayout v = (LinearLayout)llModules.getChildAt(i);
                View vv = v.getChildAt(0);
                if (vv instanceof Button) {
                    int width = vv.getMeasuredWidth();
                    maxWidth = (maxWidth > width) ? maxWidth : width;
                    //int height = vv.getMeasuredHeight();
                    //maxHeight = (maxHeight > height) ? maxHeight : height;
                }
            }
            for (int i = 0; i < childcount; i++) {
                LinearLayout v = (LinearLayout)llModules.getChildAt(i);
                View vv = v.getChildAt(0);
                if (vv instanceof Button) {
                    LayoutParams params = ((Button) vv).getLayoutParams();
                    params.width = maxWidth;
                    //params.height = maxHeight;
                    ((Button) vv).setLayoutParams(params);

                    // Applying font
                    ((Button) vv).setTypeface(tf);
                }
                vv = v.getChildAt(1);
                if (vv instanceof TextView) {
                    // Applying font
                    ((TextView) vv).setTypeface(tf);
                }
            }

            return true;
        }
    });
}

Here, in my case:

llModule - some layout containing another layout with what we need to align(v.getChildAt(0);) and other(v.getChildAt(1);).

LinearLayout v = (LinearLayout)llModules.getChildAt(i); - obtain layout of buttons to align.

Other parts are clear to understand.

Two cycles in this code are quite identical, but I still can't imagine how to combine them (to speed up the execution time).