Android CustomView Template

gistfile1.java

public class CustomView extends View {

    public CustomView(Context context) {
        super(context);
        init();
    }

    public CustomView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public CustomView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }
    private void init(){
        setWillNotDraw(false);
    }
    protected void onDraw(Canvas canvas){
        super.onDraw(canvas);

        Paint p = new Paint();
        p.setColor(0xffff0000);
        canvas.drawLine(0 ,0 ,getMeasuredHeight(),getMeasuredWidth(),p);

    }
}