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如果我在我的 HTC 魔术手机上运行以下代码，我会收到java.lang.OutOfMemoryError错误消息。对于我的手机来说，这个简单的短代码要求太多了吗？

我认为代码很简单而且很有效，但我的手机根本吃不下它。如果我将代码切成一半（就在第一个for循环之后），手机就会吃掉它。

我检查了我的手机内存，在“打开高级任务杀手”应用程序的帮助下，它显示 79 MB 可用。

我没有同时打开很多应用程序，而且我尝试执行的代码并不多（在我看来）。

我真的必须买一部新手机还是有其他方法可以解决这个问题？

public class SomeActivity extends Activity 
{
public TextView tv; 
public ImageView imgv;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    tv = (TextView)findViewById(R.id.textview);
    imgv = (ImageView)findViewById(R.id.imageView1);

    tv.setText("This is the new text");

    try 
    {
        String selectedGenre = "http://www.somewebpage.com/";

        Document doc = Jsoup.connect(selectedGenre).timeout(0).get(); 
        Elements liElements = doc.select("ul#navbar li"); 

        String pagesAmount = null;

        int liElementsCounter = 0;

        for (Element element : liElements) 
        {
            if (liElementsCounter < 1 && element.html().contains("Page ("))
            {
                String liElementText = element.html();
                pagesAmount = liElementText.substring((liElementText.indexOf("/") + 2), (liElementText.lastIndexOf(")") - 1));
                liElementsCounter++;
            }
        }

        doc = Jsoup.connect(selectedGenre.replace("p1", "p" + new Random().nextInt(1 + Integer.parseInt(pagesAmount)))).timeout(0).get();

        Elements aNameElements = doc.select("a[name]");

        ArrayList<String> elementsArray = new ArrayList<String>(); 

        int elementsSize = 0;

        for (Element element : aNameElements)
        {   
            if (elementsSize % 3 == 0)
            {
                elementsArray.add(element.attr("href").replaceAll("\\s","")); 
            }

            elementsSize++;
        }
    } 
    catch (Exception ex)
    {
        tv.setText(ex.getMessage());
        System.out.println("Exception! " + ex.getMessage());
    }
}
}

这只是我真正想要执行的代码总量的 1/15

日志猫：

06-22 14:23:18.323: D/InetAddress(2614): SOMEWEBSITE.COM: SOMEIPADDRESS (family 2, proto 6)
06-22 14:23:19.988: I/global(2614): Default buffer size used in BufferedInputStream constructor. It would be better to be explicit if an 8k buffer is required.
06-22 14:23:23.048: D/dalvikvm(2614): GC freed 2144 objects / 375080 bytes in 100ms
06-22 14:23:23.148: D/dalvikvm(2614): GC freed 117 objects / 218976 bytes in 87ms
06-22 14:23:23.518: D/dalvikvm(2614): GC freed 4578 objects / 177480 bytes in 102ms
06-22 14:23:23.908: D/dalvikvm(2614): GC freed 3119 objects / 171824 bytes in 117ms
06-22 14:23:24.158: D/dalvikvm(2614): GC freed 1831 objects / 69416 bytes in 114ms
06-22 14:23:24.488: D/dalvikvm(2614): GC freed 2798 objects / 103000 bytes in 137ms
06-22 14:23:24.908: D/dalvikvm(2614): GC freed 3480 objects / 126832 bytes in 132ms
06-22 14:23:25.408: D/dalvikvm(2614): GC freed 4624 objects / 176448 bytes in 130ms
06-22 14:23:26.028: D/dalvikvm(2614): GC freed 5390 objects / 201136 bytes in 145ms
06-22 14:23:26.738: D/dalvikvm(2614): GC freed 7460 objects / 281696 bytes in 149ms
06-22 14:23:27.658: D/dalvikvm(2614): GC freed 11187 objects / 712496 bytes in 163ms
06-22 14:23:28.398: D/dalvikvm(2614): GC freed 8357 objects / 315152 bytes in 163ms
06-22 14:23:29.138: I/dalvikvm-heap(2614): Clamp target GC heap from 16.463MB to 16.000MB
06-22 14:23:29.138: D/dalvikvm(2614): GC freed 7704 objects / 289080 bytes in 162ms
06-22 14:23:30.688: I/global(2614): Default buffer size used in BufferedInputStream constructor. It would be better to be explicit if an 8k buffer is required.
06-22 14:23:30.878: D/dalvikvm(2614): GC freed 18183 objects / 6667672 bytes in 184ms
06-22 14:23:34.768: D/dalvikvm(2614): GC freed 6048 objects / 694432 bytes in 155ms
06-22 14:23:35.428: D/dalvikvm(2614): GC freed 8257 objects / 311744 bytes in 172ms
06-22 14:23:36.068: I/dalvikvm-heap(2614): Clamp target GC heap from 16.330MB to 16.000MB
06-22 14:23:36.068: D/dalvikvm(2614): GC freed 7544 objects / 284536 bytes in 166ms
06-22 14:23:36.818: I/dalvikvm-heap(2614): Clamp target GC heap from 17.536MB to 16.000MB
06-22 14:23:36.818: D/dalvikvm(2614): GC freed 10209 objects / 482496 bytes in 188ms
06-22 14:23:36.998: I/dalvikvm-heap(2614): Clamp target GC heap from 17.631MB to 16.000MB
06-22 14:23:36.998: D/dalvikvm(2614): GC freed 4 objects / 152 bytes in 171ms
06-22 14:23:36.998: I/dalvikvm-heap(2614): Forcing collection of SoftReferences for 100180-byte allocation
06-22 14:23:37.178: I/dalvikvm-heap(2614): Clamp target GC heap from 17.631MB to 16.000MB
06-22 14:23:37.178: D/dalvikvm(2614): GC freed 0 objects / 0 bytes in 180ms
06-22 14:23:37.178: E/dalvikvm-heap(2614): Out of memory on a 100180-byte allocation.
06-22 14:23:37.178: I/dalvikvm(2614): "main" prio=5 tid=3 RUNNABLE
06-22 14:23:37.178: I/dalvikvm(2614):   | group="main" sCount=0 dsCount=0 s=0 obj=0x40019680
06-22 14:23:37.178: I/dalvikvm(2614):   | sysTid=2614 nice=0 sched=0/0 handle=-1095799844
06-22 14:23:37.178: I/dalvikvm(2614):   at java.lang.String.<init>(String.java:~512)
06-22 14:23:37.178: I/dalvikvm(2614):   at java.lang.String.copyValueOf(String.java:769)
06-22 14:23:37.178: I/dalvikvm(2614):   at java.nio.CharArrayBuffer.toString(CharArrayBuffer.java:99)
06-22 14:23:37.178: I/dalvikvm(2614):   at org.jsoup.helper.DataUtil.parseByteData(DataUtil.java:86)
06-22 14:23:37.178: I/dalvikvm(2614):   at org.jsoup.helper.HttpConnection$Response.parse(HttpConnection.java:469)
06-22 14:23:37.178: I/dalvikvm(2614):   at org.jsoup.helper.HttpConnection.get(HttpConnection.java:147)
06-22 14:23:37.178: I/dalvikvm(2614):   at dk.Activity.onCreate(Activity.java:64)
06-22 14:23:37.188: I/dalvikvm(2614):   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1132)
06-22 14:23:37.188: I/dalvikvm(2614):   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2231)
06-22 14:23:37.188: I/dalvikvm(2614):   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2284)
06-22 14:23:37.188: I/dalvikvm(2614):   at android.app.ActivityThread.access$1800(ActivityThread.java:112)
06-22 14:23:37.188: I/dalvikvm(2614):   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692)
06-22 14:23:37.188: I/dalvikvm(2614):   at android.os.Handler.dispatchMessage(Handler.java:99)
06-22 14:23:37.188: I/dalvikvm(2614):   at android.os.Looper.loop(Looper.java:123)
06-22 14:23:37.188: I/dalvikvm(2614):   at android.app.ActivityThread.main(ActivityThread.java:3948)
06-22 14:23:37.188: I/dalvikvm(2614):   at java.lang.reflect.Method.invokeNative(Native Method)
06-22 14:23:37.188: I/dalvikvm(2614):   at java.lang.reflect.Method.invoke(Method.java:521)
06-22 14:23:37.188: I/dalvikvm(2614):   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782)
06-22 14:23:37.188: I/dalvikvm(2614):   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
06-22 14:23:37.188: I/dalvikvm(2614):   at dalvik.system.NativeStart.main(Native Method)
06-22 14:23:37.198: D/AndroidRuntime(2614): Shutting down VM
06-22 14:23:37.198: W/dalvikvm(2614): threadid=3: thread exiting with uncaught exception (group=0x40013140)
06-22 14:23:37.198: E/AndroidRuntime(2614): Uncaught handler: thread main exiting due to uncaught exception
06-22 14:23:37.208: E/AndroidRuntime(2614): java.lang.OutOfMemoryError
06-22 14:23:37.208: E/AndroidRuntime(2614):     at java.lang.String.<init>(String.java:512)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at java.lang.String.copyValueOf(String.java:769)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at java.nio.CharArrayBuffer.toString(CharArrayBuffer.java:99)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at org.jsoup.helper.DataUtil.parseByteData(DataUtil.java:86)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at org.jsoup.helper.HttpConnection$Response.parse(HttpConnection.java:469)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at org.jsoup.helper.HttpConnection.get(HttpConnection.java:147)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at dk.Activity.onCreate(Activity.java:64)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1132)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2231)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2284)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at android.app.ActivityThread.access$1800(ActivityThread.java:112)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at android.os.Looper.loop(Looper.java:123)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at android.app.ActivityThread.main(ActivityThread.java:3948)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at java.lang.reflect.Method.invokeNative(Native Method)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at java.lang.reflect.Method.invoke(Method.java:521)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
06-22 14:23:37.208: E/AndroidRuntime(2614):     at dalvik.system.NativeStart.main(Native Method)
06-22 14:23:37.218: I/dalvikvm(2614): threadid=7: reacting to signal 3
06-22 14:24:11.958: I/Process(2614): Sending signal. PID: 2614 SIG: 9
4

1 回答 1

3

通过将所有代码分成 2 个活动来解决问题！（为什么这是一个很好的问题，因为第二个 Activity 包含比第一个 Activity 要求更高的代码）

第一个 Activity 包含从第一个 FOR 循环顶部到末尾的代码。

第二个 Activity 包含从第一个 FOR 循环结束到剩余代码结束的代码。

从 1.6.3 降级到 1.5.2 解决了这个问题 - 可能是 Jsoup 1.6.3 中的内存泄漏。

于 2012-06-25T09:25:50.350 回答