相关疑难解决方法(0)

这个问题发布在某个网站上.我没有在那里找到正确的答案,所以我再次在这里发布.

public class TestThread {
    public static void main(String[] s) {
        // anonymous class extends Thread
        Thread t = new Thread() {
            public void run() {
                // infinite loop
                while (true) {
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                    }
                    // as long as this line printed out, you know it is alive.
                    System.out.println("thread is running...");
                }
            }
        };
        t.start(); // Line A
        t = null; // Line B
        // no more references for Thread t
        // another infinite …

我一直在我们的Android应用程序中注意到,每次我们退出到主屏幕时,我们都会通过ByteArrayOutputStream的数量增加堆大小(泄漏).我能够管理的最好的是添加

this.mByteArrayOutputStream = null;

在run()结束时防止堆大小不断增加.如果有人能够启发我,我将非常感激.我写了下面的例子来说明问题.

MainActivity.java

public class MainActivity extends Activity {
    private Controller mController;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);        
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

    @Override
    protected void onStart() {
        super.onStart();

        this.mController = new Controller();
        mController.connect();
    }

    @Override
    protected void onStop() {
        super.onStop();

        mController.quit();
    }
}

Controller.java

public class Controller {
    public volatile ReaderThread mThread;

    public Controller() {
        super();
    }

    public void connect() {
        mThread = new ReaderThread("ReaderThread"); …