Android Graphics Tutorial

How To draw a circle in android?

Follow the Steps U will get how to a draw a circle .........

These is the NewCircle Activity Class

package com.android;

import android.app.Activity;
import android.os.Bundle;

public class NewCircle extends Activity
{


/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(new CircleView(this, 25, 25, 20));

}
}



This is the Circle View Class


package com.android;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.view.View;

public class CircleView extends View
{

// Variables
private final float x;
private final float y;
private final int r;
private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);

// Constructor
public CircleView(Context context, float x, float y, int r) {
super(context);
mPaint.setColor(0xFFFF0000);
this.x = x;
this.y = y;
this.r = r;
}

/ canvas onDraw Method for drawing a circle

@Override
protected void onDraw(Canvas canvas)
{
super.onDraw(canvas);
canvas.drawCircle(x, y, r, mPaint);
}
}