java - 我创建了一个线程吗？

Question

正如标题所示，我不确定我创建的是否是一个单独的线程。我使用过 Handler 和 Runnable 等，但我不知道什么算作线程，什么不算。

我的代码:

Handler hand = new Handler();

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Set full-screen
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);

    setContentView(R.layout.mainlayout);

    // Initialize variables from popup window
    LayoutInflater inflater = (LayoutInflater) this
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    PopupWindow pw = new PopupWindow(inflater.inflate(R.layout.storemenu,
            null, false));
    storeDismiss = (Button) pw.getContentView().findViewById(
            R.id.menudismissid);

    prefs = getSharedPreferences("LeagueClicker", Context.MODE_PRIVATE);

    goldCount = (long) prefs.getFloat("goldCount", 0.0f);

    textGoldCount = (TextView) findViewById(R.id.textviewtop);
    textGoldCount.setText(goldCount + " Gold");
    textGoldCount.setGravity(Gravity.CENTER);
    Typeface tf = Typeface.createFromAsset(getAssets(), "mechanical.ttf");
    textGoldCount.setTypeface(tf);
    textGoldCount.setTextSize(35);

    // Linking the variables
    minionClick = (Button) findViewById(R.id.minioncentreid);
    storeClick = (Button) findViewById(R.id.storeimageid);

    spinningBars = (ImageView) findViewById(R.id.spinningbarsid);

    // Setting onClickListeners
    minionClick.setOnClickListener(this);
    storeClick.setOnClickListener(this);
    storeDismiss.setOnClickListener(this);

    // Begin animation of bars
    Animation rotation = AnimationUtils.loadAnimation(this,
            R.anim.spinningbarsanimation);
    rotation.setRepeatCount(Animation.INFINITE);
    spinningBars.startAnimation(rotation);

    hand.postDelayed(run, 1000);

    /*goldPerSecondMethod();*/


}

Runnable run = new Runnable() {

    @Override
    public void run() {
        // TODO Auto-generated method stub
        longSwordPerSecond();
    }
};

public void longSwordPerSecond() {
    if (goldCount>1)
        goldCount += 0.1f;
        textGoldCount.setText(goldCount + " Gold");
        textGoldCount.setGravity(Gravity.CENTER);
        hand.postDelayed(run, 1000);


}

我还被告知要使用 HandlerThread 或其他东西，但实际上没有简明的教程来解释它们如何工作以及如何创建它们。如有任何帮助，我们将不胜感激。

Answer 1

不，你没有。 Handler 附加到当前线程(在本例中为 UI 线程)的 Looper。如果想将其分配给不同的线程，可以使用以下代码:

    HandlerThread thread = new HandlerThread("ThreadName");
    thread.start();

    hand = new Handler(thread.getLooper());

你的 Handler 对象在哪里