Android应用程序：SocketException权限被拒绝(没有这样的文件或目录)

我试图使用Fedor在这个帖子中发布的代码和上传的代码
Lazy load of images in ListView(源码： http://open-pim.com/tmp/LazyList.zip)

Fedor的项目运行良好,但是当我尝试将代码调整到我的项目时,由于我碰到了这个异常(SocketException),所以事情运行得不好.

不知何故,即使在清单中设置权限以获得Internet权限之后,我仍然继续获取它(是的,我有一个Internet连接工作)：

<uses-sdk android:minSdkVersion="8">
    <uses-permission android:name="android.permission.INTERNET"></uses-permission> 
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
</uses-sdk>

例外：SocketException：权限被拒绝.观看LogCat详细信息.

09-24 23:43:00.591: ERROR/File was not found.(1124): /mnt/sdcard/ListViewTest/-421624214 (No such file or directory)
09-24 23:43:00.601: WARN/System.err(1124): java.net.socketException: Permission denied
09-24 23:43:00.611: WARN/System.err(1124):     at org.apache.harmony.luni.platform.OSNetworkSystem.createStreamSocketImpl(Native Method)
09-24 23:43:00.611: WARN/System.err(1124):     at org.apache.harmony.luni.platform.OSNetworkSystem.createStreamSocket(OSNetworkSystem.java:186)
09-24 23:43:00.622: WARN/System.err(1124):     at org.apache.harmony.luni.net.PlainSocketImpl.create(PlainSocketImpl.java:265)
09-24 23:43:00.632: WARN/System.err(1124):     at java.net.socket.checkClosedAndCreate(Socket.java:873)
09-24 23:43:00.632: WARN/System.err(1124):     at java.net.socket.connect(Socket.java:1020)
09-24 23:43:00.632: WARN/System.err(1124):     at org.apache.harmony.luni.internal.net.www.protocol.http.httpconnection.<init>(httpconnection.java:62)
09-24 23:43:00.642: WARN/System.err(1124):     at org.apache.harmony.luni.internal.net.www.protocol.http.httpconnectionPool.get(httpconnectionPool.java:88)
09-24 23:43:00.642: WARN/System.err(1124):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.gethttpconnection(HttpURLConnectionImpl.java:927)
09-24 23:43:00.652: WARN/System.err(1124):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:909)
09-24 23:43:00.661: WARN/System.err(1124):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:1152)
09-24 23:43:00.661: WARN/System.err(1124):     at java.net.URL.openStream(URL.java:653)
09-24 23:43:00.661: WARN/System.err(1124):     at fabiomilheiro.tests.ImageLoader.getBitmap(ImageLoader.java:80)
09-24 23:43:00.671: WARN/System.err(1124):     at fabiomilheiro.tests.ImageLoader.access$0(ImageLoader.java:66)
09-24 23:43:00.671: WARN/System.err(1124):     at fabiomilheiro.tests.ImageLoader$Photosloader.run(ImageLoader.java:173)

错误/ mnt / sdcard / ListViewTest / -421624214(没有这样的文件或目录)让我烦恼.我调试了我对Fedor代码的改编,我不明白为什么找不到这些文件.我检查并确认了我试图在网上存在的文件.

顺便说一句,图像上传器类完全相同.我在代码和Fedor代码之间看到的主要区别是我的主要活动类扩展了ListActivity,而他扩展了BaseActivity.