小编twl*_*yao的帖子

我有Fragment一个ListView.在适配器中我想创建一个对话框.

class ViewHolder {
...
  @Override
  public void onClick(View v) {
    ...
    AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
    ...
   }
...
}

mContext是Context我的Fragment,我在创建适配器时保存全局.我收到了错误.

unable to add window -- token null is not for an application

该方法getActivity()不可用,所以如何得到Context我的Activity？

我是hadoop的新手.在单节点上安装了hadoop-2.2.0之后,我访问了url:localhost:9000,它返回了以下结果:

看起来您正在向Hadoop IPC端口发出HTTP请求.这不是此守护程序上Web界面的正确端口.

我已经配置了我的core-site.xml,如下所示:

<property>
    <name>fs.default.name</name>
    <value>hdfs://localhost:9000</value>
    <description>The name of the defaultfile system. Either the literal string "local" or a host:port.
    </description>
    <final>true</final>
</property>

我该如何解决这个问题？提前致谢.

我是android的新手,我现在正试图实现一个WebView例子.在我的应用程序中,WebView重定向到网页.但是在Logcat中,这是它显示的错误.我试图解决它,但我不能.帮我找到它.如果我的问题困扰你,我真的很抱歉.这是错误:

01-02 22:46:42.764: E/chromium(1223): [ERROR:gl_surface_egl.cc(153)] No suitable EGL configs found.
01-02 22:46:42.764: E/chromium(1223): [ERROR:gl_surface_egl.cc(620)] GLSurfaceEGL::InitializeOneOff failed.
01-02 22:46:42.784: E/chromium(1223): [ERROR:gl_surface_egl.cc(153)] No suitable EGL configs found.
01-02 22:46:42.784: E/chromium(1223): [ERROR:gl_surface_egl.cc(620)] GLSurfaceEGL::InitializeOneOff failed.
01-02 22:46:42.784: E/chromium(1223): [ERROR:gpu_info_collector.cc(86)]  gfx::GLSurface::InitializeOneOff() failed


01-02 22:46:42.764: E/chromium(1223): [ERROR:gl_surface_egl.cc(153)] No suitable EGL configs    found.
01-02 22:46:42.764: E/chromium(1223): [ERROR:gl_surface_egl.cc(620)] GLSurfaceEGL::InitializeOneOff failed.
01-02 22:46:42.784: E/chromium(1223): [ERROR:gl_surface_egl.cc(153)] No suitable EGL configs found.
01-02 22:46:42.784: E/chromium(1223): [ERROR:gl_surface_egl.cc(620)] GLSurfaceEGL::InitializeOneOff failed.
01-02 22:46:42.784: E/chromium(1223): [ERROR:gpu_info_collector.cc(86)] gfx::GLSurface::InitializeOneOff() failed
01-02 22:46:44.724: W/AwContents(1223): …

我正在使用eclipse上的maven 2项目,我有m2e插件,我在Eclipse中遇到以下错误:

Failure to transfer com.thoughtworks.xstream:xstream:pom:1.3.1 from http://repo1.maven.org/maven2 was cached in the 
 local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. 
 Original error: Could not transfer artifact com.thoughtworks.xstream:xstream:pom:1.3.1 from/to central (http://
 repo1.maven.org/maven2): Failed to create a selector. to http://repo1.maven.org/maven2/com/thoughtworks/xstream/
 xstream/1.3.1/xstream-1.3.1.pom

我通过删除.lastUpdated文件然后清理和构建没有运气,仍然得到相同的错误,请遵循类似问题的答案,请指教.

我正在使用Android开发者网站上下载的最新版本的ADT Bundle.我在Windows 7上.由于我从Windows收到以下崩溃消息,我的R.java文件无法正确编译:

这是问题详细输出:

Problem signature:
  Problem Event Name:   APPCRASH
  Application Name: aapt.exe
  Application Version:  0.0.0.0
  Application Timestamp:    52684cb5
  Fault Module Name:    aapt.exe
  Fault Module Version: 0.0.0.0
  Fault Module Timestamp:   52684cb5
  Exception Code:   c0000005
  Exception Offset: 0003cf2a
  OS Version:   6.1.7601.2.1.0.256.1
  Locale ID:    1033
  Additional Information 1: 0a9e
  Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
  Additional Information 3: 0a9e
  Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

Read our privacy statement online:
  http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:
  C:\Windows\system32\en-US\erofflps.txt …

我想启用Android ActionBar,但它对我不起作用.

这是我的MainActivity:

public void onCreate(Bundle savedInstanceState) {

        this.requestWindowFeature(Window.FEATURE_NO_TITLE);


        super.onCreate(savedInstanceState);
        setContentView(R.layout.login);

        ActionBar actionBar = getActionBar();
        actionBar.show();
        //more code............

这是logcat:

03-04 16:31:09.423: E/AndroidRuntime(1441): FATAL EXCEPTION: main
03-04 16:31:09.423: E/AndroidRuntime(1441): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.salebook/com.example.salebook.MainActivity}: java.lang.NullPointerException
03-04 16:31:09.423: E/AndroidRuntime(1441):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
03-04 16:31:09.423: E/AndroidRuntime(1441):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
03-04 16:31:09.423: E/AndroidRuntime(1441):     at android.app.ActivityThread.access$600(ActivityThread.java:141)
03-04 16:31:09.423: E/AndroidRuntime(1441):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
03-04 16:31:09.423: E/AndroidRuntime(1441):     at android.os.Handler.dispatchMessage(Handler.java:99)
03-04 16:31:09.423: E/AndroidRuntime(1441):     at android.os.Looper.loop(Looper.java:137)
03-04 16:31:09.423: E/AndroidRuntime(1441):     at android.app.ActivityThread.main(ActivityThread.java:5041)
03-04 16:31:09.423: E/AndroidRuntime(1441):     at java.lang.reflect.Method.invokeNative(Native Method)
03-04 16:31:09.423: …

我有一个ListView包含RatingBar来表示一些东西,如果你单击LisView的项目它弹出一个包含RatingBar的Dialog(AlertDialog),现在我想知道:

1. 如何自定义Dialog中显示的RatingBar(下面的代码不起作用,我认为这是最终的,这使得它无法定制).
2. 如何将评级从Dialog RatingBar传递到ListView RatingBar.

我目前的代码是:

final RatingBar ratingBar = new RatingBar(getApplicationContext());
ratingBar.setRating(0);
ratingBar.setStepSize(1);
ratingBar.setNumStars(2);
builder.setTitle(R.string.alertdialog_title)
.setIcon(android.R.drawable.ic_dialog_info)
.setView(ratingBar)
.setPositiveButton("Submit", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int which) {
        // do something.
    }
})              
.setNegativeButton("Cancel", null);

Edit1
我已经使用fileListAdapter(FileListAdapater的一个实例作为code1)显示了listview项的评级.现在的问题是:

1. 单击对话框后评级会发生变化,但不是我点击的项目,如何映射具有评级(对话框)更改的项目.
2. 如何存储评级,每次ListView刷新时,评级都会消失.

我已将onItemClickListener上的对话框代码作为code2.
代码1:

public class FileListAdapter extends BaseAdapter {
private Context context;
private ArrayList<File> files; // The ArrayList to store the files
private boolean isSDcard; // To indicate whether the file is the …

我正在尝试使用clang编译器的openmp代码

http://clang-omp.github.io/

我通过git下载了代码并且做了make和make install.它成功安装了具有openmp支持的clang编译器.但是当我尝试编译示例代码(在上面的链接中指定)时,我收到以下错误:

/ usr/bin/ld:找不到-liomp5

我没有指定网站中提到的包含和lib的路径,但我打算在使用-L和-I选项在命令行上编译时指定它们.

$clang -I/usr/lib/gcc/i686-linux-gnu/4.6/include -fopenmp test.c -o test

但是,我找不到iomp5 lib的路径,因此我得到了上述错误.有人可以告诉我如何解决这个问题？

我正在使用Android中的应用程序.它使用我的PC中的本地主机服务器来获取一些数据.但是在跑完之后我会在LotCat中收到警告.

02-07 15:51:48.965:W/System.err(10339):com.sun.jersey.api.client.ClientHandlerException:java.net.ConnectException:无法连接到localhost/127.0.0.1(端口9090):连接失败:ECONNREFUSED(拒绝连接)

我正在使用真实设备连接到PC并运行我的应用程序.android:permission:internet已在AndroidManifest.xml中启用.我使用的真实设备是带有Androidv4.2.2的hTC移动设备.我没有使用asyncTask来调用此Web服务.谁能帮帮我吗....

我使用ibtool从我的Base Storyboard为我的所有语言生成我的String- Files ...出于某种原因,ibtool没有提取UILabel带有"属性"的样式的s ...

我没有那些标签的键/值对...有人知道为什么？!