Draw Bitmap and Drawable : Bitmap « 2D Graphics « Android






  1. Android
  2. 2D Graphics
  3. Bitmap

Draw Bitmap and Drawable

    

import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Bitmap.Config;

public class BitmapUtils {
  public static int BACKGROUND_COLOR = Color.argb(255, 128, 128, 128);
  private static int LINE_COLOR = Color.argb(255, 154,154,154);
  public static Bitmap drawBackground(int cellSize, int height, int widht) {
    Bitmap bitmap = Bitmap.createBitmap(widht, height, Config.ARGB_8888);
    Canvas cv = new Canvas(bitmap);
    Paint background = new Paint();
    background.setColor(BACKGROUND_COLOR);
    cv.drawRect(0, 0, widht, height, background);
    background.setAntiAlias(true);
    background.setColor(LINE_COLOR);
    for (int i = 0; i < widht / cellSize; i++) {
      cv.drawLine(cellSize * i, 0, cellSize * i, height, background);
    }
    for (int i = 0; i < height / cellSize; i++) {
      cv.drawLine(0, cellSize * i, widht, cellSize * i, background);
    }
    return bitmap;
  }
  
  public static Bitmap drawEmptyBackground(int size){
    Bitmap bitmap = Bitmap.createBitmap(size, size, Config.RGB_565);
    Canvas cv = new Canvas(bitmap);
    Paint background = new Paint();
    background.setColor(BACKGROUND_COLOR);
    cv.drawRect(0, 0, size, size, background);
    return bitmap;
  }

}








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