CODEWITHSUNDEEP
androidandroid-canvasandroid-view
himanshu
himanshu

Reputation: 1980

draw(Canvas canvas) method running twice in application

First do look on my code.

Here's my code:-

public GameView(Context context){ 
super(context);

Display display = ((WindowManager)context.getSystemService(
             Context.WINDOW_SERVICE)).getDefaultDisplay();
}

@Override
    public void draw(Canvas canvas) {
        // TODO Auto-generated method stub

        int x = 0;
        int y = 0;

        bmp = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
        int imageWidth = bmp.getWidth();
        int imageHeight = bmp.getHeight();

        int width = display.getWidth();
        System.out.println("Width = " +width);
        int height = display.getHeight();
        System.out.println("Height = " +height);
        Random randomX,randomY;
        randomX = new Random();
        randomY = new Random();

        x = randomX.nextInt(width - imageWidth);
        System.out.println("X = " +x);
        y = randomY.nextInt(height - imageHeight);
        System.out.println("Y = " +y);

        Rect dst = new Rect(x , y , x + imageWidth , y + imageHeight);
        canvas.drawBitmap(bmp, null , dst , null);
        System.out.println("dst = " +dst);


        super.draw(canvas);
    }

My code is running perfectly but my problem is that the draw(Canvas canvas) running twice. Here's logs which i am getting them in Logcat every time with different values:-

Width=480
Height=800
X=247
Y=456
dst = Rect(247 , 456 - 319 , 528) 
Width=480
Height=800
X=119
Y=560
dst = Rect(119 , 560 - 191 , 632)

Every time when I am running my application,draw(Canvas canvas) is running twice.I dont want that it'll run twice every time.Help me to get rid of this problem.Any help would be highly appreciated.

Upvotes: 3

Views: 1236

Answers (1)

sonu thomas
sonu thomas

Reputation: 2161

When you override any method,better call

 super.overridedMethod();

first,then code your implementation.

Try,

 super.draw();
 //NOW YOUR STUFF

or remove super.draw();

Update

You better override onDraw() method than draw().

Again update

Make sure that setContentView(new GameView(this)); is called in onCreate().

Hope this may help you

Upvotes: 1

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