Draw with Canvas : Canvas « 2D Graphics « Android

1. Android
2. 2D Graphics
3. Canvas

Draw with Canvas

   

package app.Test;

import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.Path.Direction;
import android.os.Bundle;
import android.view.View;

public class appTest extends Activity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(new GraphicsView(this));
  }
  static public class GraphicsView extends View {
    private static final String QUOTE = "This is a test. This is a demo.";
    private Path circle;
    private Paint cPaint;
    private Paint tPaint;

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

      int color = Color.BLUE; 

      circle = new Path();
      circle.addCircle(150, 150, 100, Direction.CW);

      cPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
      cPaint.setStyle(Paint.Style.STROKE);
      cPaint.setColor(Color.LTGRAY);
      cPaint.setStrokeWidth(3);

      setBackgroundResource(R.drawable.icon);
    }

    @Override
    protected void onDraw(Canvas canvas) {
      canvas.drawPath(circle, cPaint);
    }
  }
}


//main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
   xmlns:android="http://schemas.android.com/apk/res/android"
   android:orientation="vertical"
   android:layout_width="fill_parent"
   android:layout_height="fill_parent"
   android:background="@drawable/icon">
   <org.example.graphics.Graphics.GraphicsView
      android:id="@+id/graphics"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent" />
</LinearLayout>


//strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">Graphics</string>

</resources>


//colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
   <color name="mycolor">#7fff00ff</color> 
</resources>

   
    
    
  

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