reflection

问题 Let's say we define an object like this: let object: AnyObject = { var result = UILabel(frame: CGRect(x: 0, y: 0, width: 150, height: 50)) result.text = "First Text" result.backgroundColor = UIColor.blueColor() return result }() For this example, I explicitly created a UILabel , but in my actual project I don't know what type of object is created, so I'm just treating the result as AnyObject for this example. The object is just a standard UILabel with text of "First Text" on a blue background

问题 I have the following project structure: Web API Class Library A Class Library B Class Library C These are the references between the projects Web API directly references A and B B directly references C C has a method which needs to ensure that A is loaded to use, by reflection, a type defined in it. My code actually is like the following public class C { public void MethodCallingBType( string fullClassName ) { //e.g. "MyNamespace.MyType, MyNamespace" string[] parts = fullClassName.Split( ','

问题 I want to use the method MethodHandleNatives.getTargetMethod(MethodHandle)AccessibleObject. The class MethodHandleNatives is not public. So does anybody know how I can do that? I know that its possible to access private methods and fields via reflections, so I am asking, if this is also possible. Thanks. 回答1: I have found a solution. It is not straight forward but it works =) MethodHandle mh; // a MethodHandle Object Class<?> mhn; try { mhn = Class.forName("java.lang.invoke

问题 I am creating a util-class which writes .java Files that act as coverter - generator. This util-class will generate AConverter.java' (refer below sample) I want know how to write the util-class. I googled, and found the recommendation to use apache bcel. But I couldn't find an example to write the .java File from a String and have it working in my program. The expectation is... class ADTO { private String empId; private String empName; private String dept; //setters and getters } class ABO {

问题 public class Star{ public static ArrayList initdata(String pattern) { ArrayList data = new ArrayList(); if (pattern != "") { ModelCollection mc = Star.find(pattern, 0); Iterator dataIterator = mc.iterator(); while (dataIterator.hasNext()) { Star star = (Star) dataIterator.next(); data.add(star.getName()); Debug.trace("StarName" + star.getName()); } } Collections.sort(data); return data; } } I want to invoke method initdata using reflection, I tried to write something like this , but it does

问题 This question is old now, Dapper data-view binding are fixed as shown answer below :) 回答1: I've added TypeDescriptor -based bindings to DapperRow , which means that anything obtained via Query() (the dynamic API) should now bind to much common UI controls. Anything from 1.60.5 or above should work. Let me know! Caveat: it doesn't currently work for empty results (zero rows). I know how to implement that (see notes here), but that would require some additional changes to the query

问题 This question is old now, Dapper data-view binding are fixed as shown answer below :) 回答1: I've added TypeDescriptor -based bindings to DapperRow , which means that anything obtained via Query() (the dynamic API) should now bind to much common UI controls. Anything from 1.60.5 or above should work. Let me know! Caveat: it doesn't currently work for empty results (zero rows). I know how to implement that (see notes here), but that would require some additional changes to the query

问题 I saw already some of the similar questions, but cannot find an anwser how to solve this problem. I want to have a possibility to order collection using string as property name. Model: public sealed class User : IdentityUser { #region Constructors #endregion #region Properties [Required] [Display(Name = "First name")] public string FirstName { get; set; } [Required] [Display(Name = "Last name")] public string LastName { get; set; } [ForeignKey("Superior")] public string SuperiorId { get; set;

问题 I saw already some of the similar questions, but cannot find an anwser how to solve this problem. I want to have a possibility to order collection using string as property name. Model: public sealed class User : IdentityUser { #region Constructors #endregion #region Properties [Required] [Display(Name = "First name")] public string FirstName { get; set; } [Required] [Display(Name = "Last name")] public string LastName { get; set; } [ForeignKey("Superior")] public string SuperiorId { get; set;

问题 This is the class: public class Foo { public void bar(Integer[] b) { } } Now I'm trying to get this method via reflection: Class cls = Foo.class; Class[] types = { /* what is here */ }; cls.getMethod("bar", types); How to create this "type"? 回答1: Integer[].class - this is the class literal for the integer array. If you need it dynamically, you can use Class.forName("[Ljava.lang.Integer;") as David noted. If you don't know the exact types, you can call getMethods() , iterate the returned array