طراحی دایره

کد جاوا برای درست کردن یک دایره

 

 

 

import android.app.Activity;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.Color;

import android.graphics.Paint;

import android.os.Bundle;

import android.widget.ImageView;

 

public class Test extends Activity{

  ImageView drawingImageView;

 

  @Override

  public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.main);

    drawingImageView = (ImageView)findViewById(R.id.DrawingImageView);

    Bitmap bitmap = Bitmap.createBitmap((int) getWindowManager()

        .getDefaultDisplay().getWidth(), (int) getWindowManager()

        .getDefaultDisplay().getHeight(), Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(bitmap);

    drawingImageView.setImageBitmap(bitmap);

 

    // Circle

 

    Paint paint = new Paint();

    paint.setColor(Color.GREEN);

 

paint.setStyle(Paint.Style.STROKE);

    float x = 50;

    float y = 50;

    float radius = 20;

 canvas.drawCircle(x, y, radius, paint);

 

  }

}