小编Ale*_*lex的帖子

尝试为我的应用启动JUnit测试(robotium).

public class MainTest extends ActivityInstrumentationTestCase2<MainActivity> {
    private Solo solo;

    public MainTest() {
        super("nix.android.contact", MainActivity.class);// TODO Auto-generated constructor stub
    }

    protected void setUp() throws Exception {
        super.setUp();
        solo = new Solo(getInstrumentation(), getActivity());
    }

    public void AddContact() {
        solo.assertCurrentActivity("main", MainActivity.class);
    }
}

表现

 <instrumentation
    android:name="android.test.InstrumentationTestRunner"
    android:targetPackage="nix.android.contact" />

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name" >
    <uses-librar

y android:name="android.test.runner" />
    </application>

当我尝试运行测试时,进入控制台:

Test run failed: Test run failed to complete. Expected 1 tests, received 0

我尝试为其他应用程序(非常简单的应用程序)创建其他测试 - 工作.

谢谢

我想找到存储在sdCard上的所有文件.我用过这段代码:

List<File> dir = new ArrayList<File>();
List<File> files = new ArrayList<File>();

   File root = new File (Environment.getExternalStorageDirectory().getAbsolutePath());

    scan(root); // find root directories

    for (File f : dir) { // find in root...
       scan(f);
    }

    Log.i("files", "" + files.size());
    Log.i("dir", "" + dir.size());


}

 public void scan (File path) {

    for (File f : path.listFiles()) {
        if (f.isFile()) {
            files.add(f);
        }
        else {
            dir.add(f);
        }
    }
}

但我有这个异常的问题:"java.util.ConcurrentModificationException"我改变列表(dir)并循环它.ListIterator没有帮助.