~ubuntu-branches/ubuntu/trusty/monodevelop/trusty-proposed

<para>This constructor should be called by derived classes when they completely construct the object in managed code and merely want the runtime to allocate and initialize the NSObject. This is required to implement the two-step initialization process that Objective-C uses, the first step is to perform the object allocation, the second step is to initialize the object. When you invoke the constructor that takes the NSObjectFlag.Empty you taking advatnage of a direct path that goes all the way up to NSObject to merely allocate the object's memory and bind the Objective-C and C# objects together. The actual initialization of the object is up to you.</para>

<para>This constructor is typically used by the binding generator to allocate the object, but prevent the actual initialization to take place. Once the allocation has taken place, the constructor has to initialize the object. With constructors generated by the binding generator this means that it manually invokes one of the "init" methods to initialize the object.</para>

<para>It is your responsability to completely initialize the object if you chain up using the NSObjectFlag.Empty path.</para>

<para>In general, if your constructors invokes the NSObjectFlag.Empty base implementation, then it should be calling an Objective-C init method. If this is not the case, you should instead chain to the proper constructor in your class. </para>

<para>The argument value is ignored and merely ensures that the only code that is executed is the construction phase is the basic NSObject allocation and runtime type registration. Typically the chaining would look like this:</para>

<para>This constructor should be called by derived classes when they are initialized using an [Export] attribute. The argument value is ignore, typically the chaining would look like this:</para>

// The NSObjectFlag merely allocates the object and registers the

// C# class with the Objective-C runtime if necessary, but no actual

// initXxx method is invoked, that is done later in the constructor

// This is taken from MonoMac's source code:

[Export ("initWithFrame:")]

public UIView (System.Drawing.RectangleF frame) : base (NSObjectFlag.Empty)

{

// Invoke the init method now.

var initWithFrame = new Selector ("initWithFrame:").Handle;

if (IsDirectBinding)

Handle = MonoMac.ObjCRuntime.Messaging.IntPtr_objc_msgSend_RectangleF (this.Handle, initWithFrame, frame);

else

Handle = MonoMac.ObjCRuntime.Messaging.IntPtr_objc_msgSendSuper_RectangleF (this.SuperHandle, initWithFrame, frame);

}

public class MyClass : BaseClass {

[Export ("initWithFoo:")]

public MyClass (string foo) : base (NSObjectFlag.Empty)

{

...

}

100

</code>

101

</example>

102

100

</remarks>

109

107

110

108

111

109

</AssemblyInfo>

110

111

112

<AttributeName>System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Advanced)</AttributeName>

113

</Attribute>

114

</Attributes>

112

115

113

116

114

117

</Parameters>

243

246

<remarks>To be added.</remarks>

244

247

</Docs>

245

248

</Member>

249

250

251

252

<MemberType>Method</MemberType>

253

254

255

</AssemblyInfo>

256

257

258

<AttributeName>MonoMac.Foundation.Export("filteredArrayUsingPredicate:")</AttributeName>

259

</Attribute>

260

</Attributes>

261

262

<ReturnType>MonoMac.Foundation.NSArray</ReturnType>

263

</ReturnValue>

264

265

266

</Parameters>

267

<Docs>

268

<param name="predicate">To be added.</param>

269

<summary>To be added.</summary>

270

<returns>To be added.</returns>

271

<remarks>To be added.</remarks>

272

</Docs>

273

</Member>

246

274

247

275

<MemberSignature Language="C#" Value="public static T[] FromArray<T> (MonoMac.Foundation.NSArray weakArray) where T : MonoMac.Foundation.NSObject;" />

248

276

<MemberSignature Language="ILAsm" Value=".method public static hidebysig !!T[] FromArray<(class MonoMac.Foundation.NSObject) T>(class MonoMac.Foundation.NSArray weakArray) cil managed" />

342

370

<remarks>To be added.</remarks>

343

371

</Docs>

344

372

</Member>

373

374

375

376

<MemberType>Method</MemberType>

377

378

379

</AssemblyInfo>

380

381

<ReturnType>MonoMac.Foundation.NSArray</ReturnType>

382

</ReturnValue>

383

384

385

386

387

388

<AttributeName>System.ParamArray</AttributeName>

389

</Attribute>

390

</Attributes>

391

</Parameter>

392

</Parameters>

393

<Docs>

394

<param name="count">To be added.</param>

395

<param name="items">To be added.</param>

396

<summary>To be added.</summary>

397

<returns>To be added.</returns>

398

<remarks>To be added.</remarks>

399

</Docs>

400

</Member>

345

401

346

402

347

403

420

476

<remarks>To be added.</remarks>

421

477

</Docs>

422

478

</Member>

479

480

481

482

<MemberType>Method</MemberType>

483

484

485

</AssemblyInfo>

486

487

488

<AttributeName>MonoMac.Foundation.Export("sortedArrayUsingComparator:")</AttributeName>

489

</Attribute>

490

</Attributes>

491

492

<ReturnType>MonoMac.Foundation.NSArray</ReturnType>

493

</ReturnValue>

494

495

496

</Parameters>

497

<Docs>

498

<param name="cmptr">To be added.</param>

499

<summary>To be added.</summary>

500

<returns>To be added.</returns>

501

<remarks>To be added.</remarks>

502

</Docs>

503

</Member>

423

504

424

505

425

506

Older »