ViewUtils.java

package com.lean56.andplug.utils;

import android.view.View;

import static android.view.View.GONE;
import static android.view.View.INVISIBLE;
import static android.view.View.VISIBLE;

/**
 * Utilities for working with the {@link View} class
 *
 * @author Kevin Sawicki <kevinsawicki@gmail.com>
 * @author Charles
 */
public class ViewUtils {

    /**
     * Set visibility of given view to be gone or visible
     * <p/>
     * This method has no effect if the view visibility is currently invisible
     *
     * @param view
     * @param gone
     * @return view
     */
    public static <V extends View> V setGone(final V view, final boolean gone) {
        if (view != null)
            if (gone) {
                if (GONE != view.getVisibility())
                    view.setVisibility(GONE);
            } else {
                if (VISIBLE != view.getVisibility())
                    view.setVisibility(VISIBLE);
            }
        return view;
    }

    /**
     * Set visibility of given view to be invisible or visible
     * <p/>
     * This method has no effect if the view visibility is currently gone
     *
     * @param view
     * @param invisible
     * @return view
     */
    public static <V extends View> V setInvisible(final V view,
                                                  final boolean invisible) {
        if (view != null)
            if (invisible) {
                if (INVISIBLE != view.getVisibility())
                    view.setVisibility(INVISIBLE);
            } else {
                if (VISIBLE != view.getVisibility())
                    view.setVisibility(VISIBLE);
            }
        return view;
    }
}