iammert

private Paint mBackgroundAmbientPaint;
private Paint mBackgroundPaintFilled;
private Paint mBackgroundPaintNotFilled;
private Paint mPaintHourText;
private Paint mPaintMinuteText;
private Typeface mTypefaceRobotoThin;
private Typeface mTypefaceRobotoLight;

iammert

  mTypefaceRobotoThin = Typeface.createFromAsset(getAssets(), "robotothin.ttf");
  mTypefaceRobotoLight = Typeface.createFromAsset(getAssets(), "robotolight.ttf");
  
  mBackgroundPaintFilled = new Paint();
  mBackgroundPaintFilled.setColor(getResources().getColor(R.color.color_bg));
  
  mBackgroundPaintNotFilled = new Paint();
  mBackgroundPaintNotFilled.setColor(getResources().getColor(R.color.color_gray));
  
  mPaintHourText = new Paint();

iammert

private int mWidth; 
private int mHeight;
private float mCenterX; 
private float mCenterY;

...

@Override
public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) {
    super.onSurfaceChanged(holder, format, width, height);

iammert

//Formül -- > ((mTime/60f) * mHeight).

//Mavi dikdörtgeni çiziyoruz.
canvas.drawRect(0, mHeight - (mTime.minute / 60f) * mHeight, canvas.getWidth(), canvas.getHeight(), mBackgroundPaintFilled);

//Gri dikdörtgeni çiziyoruz.
canvas.drawRect(0, 0, canvas.getWidth(), mHeight - (mTime.minute / 60f) * mHeight, mBackgroundPaintNotFilled);

iammert

//Yazacağımız saatin genişliğini ve yüksekliğini alıyoruz ve saate ortalıyoruz.
Rect hourBound = new Rect();
mPaintHourText.getTextBounds(mHour, 0, mHour.length(), hourBound);
canvas.drawText(mHour, mCenterX - (hourBound.width() / 2f), mCenterY + (hourBound.height() / 2f), mPaintHourText);

//Yazacağımız dakikanın genişliğini ve yüksekliğini hesaplayıp saatin yanına yazıyoruz.
Rect minuteBound = new Rect();
mPaintMinuteText.getTextBounds(mMinute, 0, mMinute.length(), minuteBound);
canvas.drawText(mMinute, mCenterX + (mCenterX / 2f), mCenterY + (minuteBound.height() / 2f), mPaintMinuteText);

iammert

public class Engine {

    public Engine() {
    }

    public void turnOn(){
        //Engine turned on here.
    }

    public void turnOff(){

iammert

public class Car {

    private Engine engine;

    public Car() {
        engine = new Engine();
    }

    public void start(){
        engine.turnOn();

iammert

public class Main {
    
    public static void main(String[] args){
        Car car = new Car();
        car.start();
        car.stop();
    }
}

iammert

public class Car {

    private Engine engine;

    public Car(Engine engine) {
        this.engine = engine;
    }

    public void start(){
        engine.turnOn();

iammert

public class Car {
 
    private LPGEngine engine;
 
    public Car(LPGEngine engine) {
        this.engine = engine;
    }
 
    public void start(){
        engine.turnOn();