xib に view - viewButton を設置 viewButton へ UIButton を 1 個設置 このボタンのレイアウトをコードで変更するときに from のコードを書くと表題のエラーが出る ので、to にすればよい from UIView *buttonView = self.viewButton.subviews[0] to UIView…

UISplitViewController で 2 つの ViewController を 1 つの画面に表示する 結果イメージ 前提 Storyboad, Segue は使わない Xcode 6.3.1 iOS 8.1 登場人物 LabelsViewController(.xib | .h | .m) (左側に出す画面) ButtonsViewController(.xib | .h | .m) (…

delegate(デリゲート) は 何か 他のオブジェクトがイベント通知を受けた時 このオブジェクトの代わりにアクションを実行するオブジェクト an object that acts on behalf of another object when that object encounters an event in a program 何ができるの…

結果イメージ テキストフィールドに @"out me" を入力 Send ボタンを押下する 別画面が開いて @"out me" が表示される 前提 Storyboad, Segue は使わない Xcode 6.3.1 iOS 8.3 登場人物 InputViewController(.xib | .h | .m) (値を受け渡す ViewController) …

to simplify creation of instance for many types Class Clustersdeveloper.apple.com

Draft article what is GoF Delegation The Gang of Four is wrong and you don't understand delegation - Saturn Flyer with Jim Gaywww.saturnflyer.com non-free article Using prototypical objects to implement shared behavior in object-oriented s…

It's just a mark to categorize. No impact on code. reference thanks for your knowledge sharing What is the significance of #pragma marks? Why do we need #pragma marks?stackoverflow.com #pragmanshipster.com

The completion block is used for doing any tasks after presenting the view controller reference thanks for your knowledge sharing what should go into completion in presentViewController?stackoverflow.com UIViewController Class Referencedev…

In this article, let VC as ViewController will output create base VC sub VC add sub VC to base VC create base VC In this article base VC is TopViewController(.h | .m) Main.storyboard Main.storyboard TopViewController.h #import <UIKit/UIKit.h> @interface </uikit/uikit.h>…

error snippet InternalInconsistencyException nib but the view outlet was not set background Created custom ViewController Combined it to another ViewController Could loaded xib with 'initWithNibName' But above error happened after build fi…

error Snippet Terminating app due to uncaught exception ‘NSInternalInconsistencyException', reason: 'Could not load NIB in bundle: check If you're working on project 'testproject' 1 XYZ.xib exist on Xcode IDE under directory 'testproject' …

just have resources or mange the resources Views Manage Your Application’s Visual Content View Controllers Manage Views Manage Resources Respond to Events Coordinate with Other Controllers Often Work with Containers May Be Presented by Oth…

2015-05-05 13:31:24.441 ProjectName[993:42467] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<XYZViewController 0x10caafd70> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key view.' check 1st arg of U</xyzviewcontroller>…

If use 'group by', set will be divided to subgroups. implements CREATE TABLE membeers ( name text, age integer, home text ); -- abbreviated insertion... SELECT * FROM members; name | age | home ---------+-----+--------- shimano | 25 | tott…

description(snippet from reference) The SQL HAVING Clause is used in combination with the GROUP BY Clause to restrict the groups of returned rows to only those whose the condition is TRUE. reference SQL: HAVING Clause

related to NOT IN ; sql - Red > Green > Refactor > Red snippet from reference >>-+-expression1--+-----+--IN--+-(--fullselect1--)---------+-+->< | '-NOT-' | .-,---------------. | | | | V | | | | +-(------expression2---+--)-+ | | '---express…

snippet from reference 4 Concepts 4.1 Data types A data type is a set of representable values. The logical representation of a value is a <literal>. The physical representation of a value is implementation-dependent. A value is primitive in that it</literal>…

snippet from reference The term cardinality actually has two different meanings depending on the context of it’s usage one meaning is in the context of data modeling and the other meaning is in the context of SQL statements. . . when the w…

snippet from reference 8.8 <exists predicate> Function Specify a test for a non-empty set. Format <exists predicate> ::= EXISTS <table subquery> General Rules 1) Let T be the result of the <table subquery>. 2) If the cardinality of T is greater than 0, then the result of the <exists predicate> is tr…</exists></table></table></exists></exists>

solution to odd action at NOT IN (...only result) (avoid record If NULL is included) SELECT * FROM members; id | name | age | home ----+---------+-----+--------- 1 | takagi | 23 | tottori 2 | kinashi | 19 | tottori 3 | itano | 20 | osaka 4…

非参考のお願い ... 内容不正確のため 非参考のお願い ... 内容不正確のため 非参考のお願い ... 内容不正確のため subview on main view will do Set components on Main.storyboard as you want Main.storyboard respond to TopViewController(.m | .h) Cr…

template @try { // process may include exception } @catch(NSException *e) { NSLog(@"Name: %@", [e name]); NSLog(@"Reason: %@", [e reason]); // append if any process exist } ex @try { SampleCustomViewController *viewController = [nib instan…

use instancetype readable (type safe) ex. generally in ‘init’ … ‘init’ returns 'the instance’ so it’s clear if it’s written ‘instancetype is returned’ (id) init; // what type will be returned? (instancetype) init; // ah ... instance will b…

ib(interface builder) Graphical Editor for designing UI components nib The resulting interface is stored as a .nib file short for NeXT Interface Builder xib no-compiled nib (XML formatted) Referred to ib and nib xib

select 'Freeform' at 'Size' in Attributes inspector width and height can be changeable in Size inspector referred to Unable to change the size of a view in IBstackoverflow.com

Difference between release and dealloc in objective-cstackoverflow.com

Difference between in and any operators in sqlstackoverflow.com

Benedict's Soapbox » Defining an Objective-C @property as Publicly readonly and Privately readwrite readonly in outside interface readwrite in inside interface and implementation (and synthesize) XYZViewController.h #import <UIKit/UIKit.h> @interface XYZ</uikit/uikit.h>…

@property can declare getter/setter property equiv to @property getter/setter|yes @property(readwrite) getter/setter (same as above) @property(readonly) getter|yes @synthesize can cut out getter/setter logic if set @property in interface h…

ARC All you have to do is claim ownership of any object you need and remember to relinquish ownership when you’re done with it. retain The retain method claims ownership of an existing object. It’s like telling the operating system, "Hey! …