Porter and Duff Demonstration

gistfile1.txt

import android.annotation.TargetApi;
import android.app.Activity;
import android.graphics.Color;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffColorFilter;
import android.os.Build;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.ViewGroup;
import android.widget.ImageView;

public class DummyActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.porter_duff_demo);
        
        int srcColor = Color.CYAN;
        ViewGroup parent = (ViewGroup) findViewById(R.id.cat_holder);

        tintImage(srcColor, PorterDuff.Mode.ADD, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.CLEAR, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.DARKEN, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.DST, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.DST_ATOP, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.DST_IN, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.DST_OUT, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.DST_OVER, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.LIGHTEN, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.OVERLAY, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.MULTIPLY, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.SCREEN, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.SRC, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.SRC_ATOP, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.SRC_IN, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.SRC_OUT, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.SRC_OVER, inflateCat(parent));
        tintImage(srcColor, PorterDuff.Mode.XOR, inflateCat(parent));
    }

    private ImageView inflateCat(ViewGroup parent) {
        LayoutInflater.from(this).inflate(R.layout.cat_holder, parent);
        return (ImageView) parent.getChildAt(parent.getChildCount() - 1);
    }

    private void tintImage(int color, PorterDuff.Mode mode, ImageView imageView) {
        PorterDuffColorFilter porterDuffColorFilter = new PorterDuffColorFilter(color, mode);
        imageView.setColorFilter(porterDuffColorFilter);
    }
}