CountdownDrawable.java

package com.banking.xc.utils.ui;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.text.TextPaint;
import android.text.TextUtils;

import com.banking.xc.utils.Log;

public class CountdownDrawable extends Drawable {

	private CharSequence text;

	private TextPaint paint;

	private float textSize = 18;

	public CountdownDrawable(Context context) {
		paint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
		paint.setAntiAlias(true);
		paint.setStyle(Style.FILL);
		paint.setTextSize(18);
	}

	public CountdownDrawable(Context context, CharSequence text) {
		this(context);
		this.text = text;
	}

	@Override
	public void draw(Canvas canvas) {
		try {
			if (!TextUtils.isEmpty(text) && text.length() == 11) {

				canvas.save();

				final Rect rect = getBounds();
				final Rect padding = new Rect();
				getPadding(padding);
				
				float x = rect.left + padding.left;
				float y = rect.top + padding.top + textSize + 1;
				
				final String cs1 = text.subSequence(0, 2).toString();
				final String cs2 = text.subSequence(2, 4).toString();
				final String cs3 = text.subSequence(4, 5).toString();
				final String cs4 = text.subSequence(5, 7).toString();
				final String cs5 = text.subSequence(7, 8).toString();
				final String cs6 = text.subSequence(8, 10).toString();
				final String cs7 = text.subSequence(10, text.length()).toString();
				
				paint.setColor(Color.BLACK);
				canvas.drawText(cs1, 0, cs1.length(), x, y, paint);
				
				paint.setColor(Color.RED);
				canvas.drawText(cs2, 0, cs2.length(), x + paint.measureText(cs1), y, paint);
				
				paint.setColor(Color.BLACK);
				canvas.drawText(cs3, 0, cs3.length(), x + paint.measureText(cs1 + cs2), y, paint);
				
				paint.setColor(Color.RED);
				canvas.drawText(cs4, 0, cs4.length(), x + paint.measureText(cs1 + cs2 + cs3), y, paint);
				
				paint.setColor(Color.BLACK);
				canvas.drawText(cs5, 0, cs5.length(), x + paint.measureText(cs1 + cs2 + cs3 + cs4), y, paint);
				
				paint.setColor(Color.RED);
				canvas.drawText(cs6, 0, cs6.length(), x + paint.measureText(cs1 + cs2 + cs3 + cs4 + cs5), y, paint);
				
				paint.setColor(Color.BLACK);
				canvas.drawText(cs7, 0, cs7.length(), x + paint.measureText(cs1 + cs2 + cs3 + cs4 + cs5 + cs6), y, paint);

				canvas.restore();

			}
		} catch (Exception e) {
			if (Log.D) {
				e.printStackTrace();
			}
		}
	}

	@Override
	public void setAlpha(int alpha) {

	}

	@Override
	public void setColorFilter(ColorFilter cf) {

	}

	@Override
	public int getOpacity() {
		return 0;
	}

	public void setText(CharSequence text) {
		this.text = text;
	}

	public void setTextSize(float textSize) {
		this.textSize = textSize;
		if (paint != null) {
			paint.setTextSize(textSize);
		}
	}

}