Colorize

TODO.md

#TODO

• Color text menu items as well as coloring icon's in the menu

ToolbarColorizer.java

import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
import android.widget.ImageView;

/**
 * Created by braunster on 14.07.15.
 */
public class ToolbarColorizer {

    public static void colorToolbar(Toolbar toolbar, int color){
        toolbar.setNavigationIcon(ViewUtils.getTintedDrawable(toolbar.getNavigationIcon(), color));

        ImageView overflow  = ViewUtils.getOverflowMenu(toolbar);

        if (overflow != null){
            overflow.setImageDrawable(ViewUtils.getTintedDrawable(overflow.getDrawable(), color));
        }

        MenuItem item;
        for (int i = 0; i < toolbar.getMenu().size(); i++){
            item = toolbar.getMenu().getItem(i);

            item.setIcon(ViewUtils.getTintedDrawable(item.getIcon(), color));
        }
    }

}

ViewUtils.java

import android.content.res.Resources;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.support.annotation.ColorRes;
import android.support.annotation.DrawableRes;
import android.support.annotation.Nullable;
import android.support.v7.internal.widget.TintImageView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

/**
 * Created by braunster on 10/04/15.
 *
 */
public class ViewUtils {


    @Nullable
    public static Drawable getTintedDrawable(Resources res,
                                             @DrawableRes int drawableResId, @ColorRes int colorResId) {
        Drawable drawable = res.getDrawable(drawableResId);
        int color = res.getColor(colorResId);

        return getTintedDrawable(drawable, color);
    }
 
    /**
    * Code has been taken from this blog post: http://blog.danlew.net/2014/08/18/fast-android-asset-theming-with-colorfilter/
    * You should read it.
    */
    @Nullable
    public static Drawable getTintedDrawable(Drawable drawable,  int color) {

        if (drawable == null)
            return null;

        drawable.setColorFilter(color, PorterDuff.Mode.SRC_IN);

        return drawable;
    }

    /**
    * Used this gist as base: https://gist.github.com/jaredrummler/ec7dfb73f3235ad8e951
    * Check it out for more options.
    **/
    public static ImageView getOverflowMenu(final ViewGroup group) {
        ImageView overflow = null;
        for (int i = 0, l = group.getChildCount(); i < l; i++) {
            final View v = group.getChildAt(i);

            if (v instanceof TintImageView)
            {
                if (v.getClass().getSimpleName().equals("OverflowMenuButton")) {
                    overflow = (ImageView) v;
                }
            }
            else if (v instanceof ViewGroup) {
                overflow = getOverflowMenu((ViewGroup) v);
            }
        }
        return overflow;
    }
}