小编Moh*_*hin的帖子

我刚刚实现了v7 AppCompat支持库,但在MenuItemCompat.getActionView我测试的每个Android版本中总是返回null(4.2.2,2.3.4 ....)

该SearchView显示在操作栏上,但它不响应触摸操作,不会展开,以显示其EditText与就像一个简单的图标.

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.menu, menu);

    MenuItem searchItem = menu.findItem(R.id.action_search);
    SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
    if (searchView != null) {
        SearchViewCompat.setOnQueryTextListener(searchView, mOnQueryTextListener);
        searchView.setIconifiedByDefault(false);
        Log.d(TAG,"SearchView not null");
    } else
        Log.d(TAG, "SearchView is null");
    }
    return super.onCreateOptionsMenu(menu);
}

menu.xml文件

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto">

    <item android:id="@+id/action_search"
          app:showAsAction="always|collapseActionView"
          android:icon="@drawable/abc_ic_search"
          android:title="@string/action_bar_search"
          android:actionViewClass="android.support.v7.widget.SearchView"/>

    <item android:id="@+id/action_refresh"
          android:icon="@drawable/refresh"
          android:title="@string/action_bar_refresh"
          app:showAsAction="ifRoom"/>
</menu>

我有一个线程,但我想等待它完成后再继续下一步行动.我怎么能这样做？

            new Thread(

                    new Runnable() {

                        @Override
                        public void run() {
                            mensaje = getFilesFromUrl(value);
                        }

                    }).start();

在这里我想放一些东西(但循环)知道什么时候线程完成并评估结果(mensaje)

            btnOk.setVisibility(View.VISIBLE);
            progressBar.setVisibility(View.GONE);
            lblEstado.setText(mensaje);

            if(mensaje.equals("Importado"))
                startActivity(new Intent(ScanUrl.this, MainActivity.class));

当我尝试应用标准主题时 AlertDialog

AlertDialog.Builder builder = new AlertDialog.Builder(MyClass.this, AlertDialog.THEME_DEVICE_DEFAULT_LIGHT);

builder.setTitle("Change");

String[] info= this.getResources().getStringArray(R.array.info);

ArrayAdapter arrayAdapter = new ArrayAdapter(this, android.R.layout.select_dialog_singlechoice);

arrayAdapter.addAll(info);

builder.setSingleChoiceItems(arrayAdapter, ....

结果:

注意事项是我没有问题,builder.setItems(...)因为它的文本颜色是Black在应用主题时builder.setSingleChoiceItems(...)具有白色文本颜色.

任何快速修复？或者基于什么方式创建自定义主题AlertDialog.THEME_DEVICE_DEFAULT_LIGHT？

我的自定义样式无法按预期工作:

<style name="AlertDialogCustomTheme" android:parent="android:Theme.Dialog">
    <item name="android:textColor">#7ABDFF</item>
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowBackground">@android:color/transparent</item>


    <!--THE FOLLOWING ITEMS HAVE NOT EFFECT ... !! -->

    <item name="android:layout_centerHorizontal">true</item>
    <item name="android:layout_centerVertical">true</item>
    <item name="android:textColorAlertDialogListItem">#A844BD</item>
    <item name="android:itemBackground">#7ABDFF</item>
</style>

更新

@lopez答案是一个完整的解决方案,但我找到了我的问题的单行修复,一个自定义主题应用于清单中的活动:

<style name="MyTheme">
    <item name="android:textColorAlertDialogListItem">@android:color/black</item>
</style>

我们都知道getParentFragment的Fragment是API 17推出.

那么如果我们想要在API 16及更低版本中获取父片段呢(考虑到我使用native Fragment支持FragmentStatePagerAdapter并且嵌套片段没有问题)

还有比我更好的方法吗？

在父母:

public class ParentFragment extends Fragment {

public static ParentFragment StaticThis;
...

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

StaticThis = this;

...
}

在孩子:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1)
         parentFragment = (ParentFragment) getParentFragment();
else
         parentFragment = ParentFragment.StaticThis;

目前我使用Autofac为IOC和在两个组合物根(一个用于前端和一个用于后端)我注册和解析组件跨越的Service,Business和Data层.

截至目前,我只有一个像'AccountingModule'.现在我要在应用程序中添加几个新模块,名称如下InventoryModule,......

我的问题是我应该在各层之间拆分每个模块类(解决方案1)还是为每个模块分别设置所有层(解决方案2)

解决方案1:

Service Layer

(AccountingMoudle, InventoryModule, ...)

Business Layer

(AccountingMoudle, InventoryModule, ...)

Data Layer

(AccountingModule, InventoryModule, ...)

要么

解决方案2:

AccountingModule
(
 Service Layer,
 Business Layer,
 Data Layer
)

InventoryModule
(
 Service Layer,
 Business Layer,
 Data Layer
)

编辑1

+-----------------------------+                              +----------------------------+
+--+AccountingServiceComponent                               +-+InventoryServiceComponent
|                                      Weak Dependency       |
+--+AccountingBusinessComponent      <------------------+    +-+InventoryBusinessComponent
|                                                            |
+--+AccountingDataComponent                                  +-+InventoryDataComponent
       +                                                         +
       +-+ GetDocumentByID(int id)                               +--+GetProductByID(int id)
       |                                                         |
       +-+ SaveDocument(Document d)                              +--+SaveProduct(Product p)

编辑2 …

我想使用XmlFormatter将类序列化为MVC Web API中的响应,但是在创建共振时我得到以下异常:

MediaTypeFormatter formatter = Configuration.Formatters.XmlFormatter;
HttpResponseMessage resp = Request.CreateResponse<Model>(HttpStatusCode.OK, value: modelObject, formatter: formatter);

例外:

The configured formatter 'System.Web.Http.Tracing.Tracers.XmlMediaTypeFormatterTracer' cannot write an object of type 'Model'.

怎么了 ？

我在C#中有以下数据签名代码

RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();

string PrivateKeyText = "<RSAKeyValue><Modulus>....</D></RSAKeyValue>";

rsa.FromXmlString(PrivateKeyText);

string data = "my data";        

byte[] SignedByteData = rsa.SignData(Encoding.UTF8.GetBytes(data), new SHA1CryptoServiceProvider());

我想在Java(Android)中重现相同的代码:

String modulusElem = "...";
String expElem = "...";

byte[] expBytes = Base64.decode(expElem, Base64.DEFAULT);
byte[] modulusBytes = Base64.decode(modulusElem, Base64.DEFAULT);

BigInteger modulus = new BigInteger(1, modulusBytes);
BigInteger exponent = new BigInteger(1, expBytes);

try {
    KeyFactory factory = KeyFactory.getInstance("RSA");

    Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1PADDING");

    String data = "my data";

    MessageDigest md = MessageDigest.getInstance("SHA-1");
    byte[] hashedData = md.digest(data.getBytes("UTF-8"));

    RSAPublicKeySpec pubSpec = new …

我有一个配置了TransportWithMessageCredential安全性的WCF服务.所有三种实现的IAuthorizationPolicy,ServiceAuthenticationManager和ServiceAuthorizationManager到位,有效.

serviceHost.Credentials.ServiceCertificate.SetCertificate("CN=localhost");
serviceHost.Credentials.UserNameAuthentication.CustomUserNamePasswordValidator = new CustomValidator();
serviceHost.Credentials.UserNameAuthentication.UserNamePasswordValidationMode = System.ServiceModel.Security.UserNamePasswordValidationMode.Custom;

serviceHost.Authorization.PrincipalPermissionMode = PrincipalPermissionMode.Custom;
serviceHost.Authorization.ServiceAuthorizationManager = new MyServiceAuthorizationManager();
serviceHost.Authentication.ServiceAuthenticationManager = new MyServiceAuthenticationManager();
serviceHost.Authorization.ExternalAuthorizationPolicies = 
    new System.Collections.ObjectModel.ReadOnlyCollection<System.IdentityModel.Policy.IAuthorizationPolicy>(
        new MyAuthorizationPolicy[] { new MyAuthorizationPolicy() });

据我所知,在ServiceAuthorizationManager继承的类中,在CheckAccessCore方法中,return false语句表示拒绝访问.这一切都很好,直到我希望客户端知道他有一个访问被拒绝的异常,其中服务停止向客户端返回任何内容,似乎服务线程被绞死.

我尝试了各种各样try catch的客户端甚至添加了一个FaultContract操作,但问题抵制.

我只能看到诊断工具中的两个错误事件.

我的实现中缺少什么来获取服务通知用户访问被拒绝错误？

更新

值得注意的是,我说我正在使用RoutingService,现在我猜真正的原因RoutingService是以某种方式吃异常,但我不知道究竟发生了什么.即使我介入了所有可能的方法,但我没有找到它.

更新2

我IErrorHandler到位了:

   public class ServiceErrorHandler : IErrorHandler
    {
        public bool HandleError(Exception error)
        {
            //You can log …

为了有自定义字体在PreferenceFragment每个偏好,我不得不写一个新的自定义类的每个偏好类型(CustomSwitchPreference,CustomEditTextPreference,CustomListPreference,...),并设置其字体onBindView的方法.

它有效,但这是最好的解决方案吗？不短吗？

@Override
public void onBindView(View view){
    super.onBindView(view);
    TextView title = (TextView) view.findViewById(android.R.id.title);
    TextView summary = (TextView) view.findViewById(android.R.id.summary);
    Utils.setFont(context, title, customfont);
    Utils.setFont(context, summary, customfont);
}

public class Utils{
    public static boolean setFont(Context context, TextView tv, String fontAssetName) {
        Typeface font = Typeface.createFromAsset(context.getResources().getAssets(), fontAssetName);
        if (font != null) {
            tv.setTypeface(font);
            return true;
        }
        return false;
    }
}

有没有办法改变PreferenceFragment包含对话框的所有部分的字体？

我有一个多行的长文本.我希望将TextView内部包裹起来,ScrollView以便在用户滚动文本时ScrollView应用TEMPORARY alpha渐变的边缘TextView.褪色根本没有出现.

我故意为高度设置一个很高的值,TextView但是它不能用于此WRAP_CONTENT或者甚至不能MATCH_PARENT.

<ScrollView android:layout_width="match_parent"
            android:layout_height="300dp"
            android:requiresFadingEdge="vertical"
            android:fadingEdgeLength="200dp">
    <TextView
            android:layout_width="match_parent"
            android:layout_height="1000dp"
            android:text="He has been involved with various online encyclopedia projects.[7]\nHe is the former editor-in-chief of Nupedia,[8] chief organizer (2001–02) of its successor, Wikipedia,[9] and founding editor-in-chief of Citizendium.[10]\nFrom his position at Nupedia, he assembled the process for article development.[11] Sanger proposed implementing a wiki, which led directly to the creation of Wikipedia.[12]\nInitially Wikipedia was a …