nsstring

iOS 网络编程 GET 与 POST

由 我们两清 提交于 2019-12-24 01:24:39
// // ViewController.m // NetWork 1 // // Created by Lenny on 3/21/15. // Copyright (c) 2015 Lenny. All rights reserved. // #import "ViewController.h" #import "MBProgressHUD+MJ.h" @interface ViewController ()<</span>NSURLConnectionDataDelegate> @property (weak, nonatomic) IBOutlet UITextField *nameField; @property (weak, nonatomic) IBOutlet UITextField *pwdField; - (IBAction)loginBtnClick; @property(nonatomic,strong)NSMutableData * responseData; @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; } - (IBAction)loginBtnClick { NSString *username = self.nameField.text;

Objective C: How to grab a number after a sub string from string

由 夙愿已清 提交于 2019-12-24 00:43:24
问题 I have a lengthy string as below Please plan to attend to provide upgrade to existing code morning meeting to acoomdate bum team members Meeting Number: 457 231 123 To join this meeting go to http://domainname.com enter password Now i want to grab number after the text "Meeting Number" i.e. 457 231 123 Any help please. thanks EDIT Lets say i have a string NSString *myString = @"Please plan to attend to provide upgrade to existing code morning meeting to acoomdate bum team members Meeting

How to find Multiple NSRange for a string from full string iOS swift

由 痞子三分冷 提交于 2019-12-23 22:15:14
问题 let fullString = "Hello world, there are \(string(07)) continents and \(string(195)) countries." let range = [NSMakeRange(24,2), NSMakeRange(40,3)] Need to find the NSRange for numbers in the entire full string and there is a possibility that both numbers can be same. Currently hard coding like shown above, the message can be dynamic where hard coding values will be problematic. I have split the strings and try to fetch NSRange since there is a possibility of same value. like stringOne and

Split NSString and Limit the response

由 吃可爱长大的小学妹 提交于 2019-12-23 21:29:56
问题 I have a string Hello-World-Test, I want to split this string by the first dash only. String 1:Hello String 2:World-Test What is the best way to do this? What I am doing right now is use componentsSeparatedByString, get the first object in the array and set it as String 1 then perform substring using the length of String 1 as the start index. Thanks! 回答1: I added a category on NSString to split on the first occurrence of a given string. It may not be ideal to return the results in an array,

Automatically adjusting height of a UILabel

由 狂风中的少年 提交于 2019-12-23 19:33:09
问题 I'm using the following two methods (one is a category of NSString and the other a category of UILabel ) to automatically adjust the height of a label based on the text inside it. It's working fine for the mostpart, but it's having some unpredictable results. I'm not quite sure where the issue may be occuring and I'm hoping some of you fine folks can offer a helping hand. First off, here are the methods in question: NSString Category: - (CGFloat) fontSizeWithFont: (UIFont *) font

What Is -[NSURL _fastCharacterContents]:?

由 梦想的初衷 提交于 2019-12-23 17:24:31
问题 So I'm calling this in a method: -(id)initWithContentURL:(NSString *)url { if (self = [super init]) { NSLog(@"xSheetMusicViewController - %@",url); // Casting an NSString object pointer to a CFStringRef: CFStringRef cfString = (CFStringRef)url; CFURLRef pdfURL = CFBundleCopyResourceURL(CFBundleGetMainBundle(), cfString, NULL, NULL); pdf = CGPDFDocumentCreateWithURL((CFURLRef)pdfURL); } return self; } Which crashes right at the NSLog at the line marked: CFURLRef pdfURL =

[转载]NSString常用操作

由 无人久伴 提交于 2019-12-23 16:03:55
字符串的使用 原文地址： NSString常用操作 作者： iphone专家 //1、创建常量字符串。 NSString *astring = @"This is a String!"; //2、创建空字符串，给予赋值。 NSString *astring = [[NSString alloc] init]; astring = @"This is a String!"; NSLog(@"astring:%@",astring); [astring release]; //3、在以上方法中，提升速度:initWithString方法 NSString *astring = [[NSString alloc] initWithString :@"This is a String!"]; NSLog(@"astring:%@",astring); [astring release]; //4、用标准c创建字符串:initWithCString方法 char *Cstring = "This is a String!"; NSString *astring = [[NSString alloc] initWithCString :Cstring]; NSLog(@"astring:%@",astring); [astring release]; //5、创建格式化字符串:占位符（由一个

How to convert to “combining diacritical marks” on iOS

由 久未见 提交于 2019-12-23 15:29:45
问题 In my app, I have characters that are followed by their "modifier diacritical marks" (e.g. "oˆ", where the "ˆ" is unicode 0x02c6) that I want to convert into fully precomposed characters (e.g. "ô" - unicode 0x00f4). I tried using the NSString method precomposedStringWithCanonicalMapping, but after several hours of beating my head against the wall trying to figure out why it wasn't working, I discovered that it only converts "combining diacritical marks" (http://www.unicode.org/charts/PDF

isEqualToString always returns False

由 空扰寡人 提交于 2019-12-23 15:14:14
问题 A little background here before I get started, basically we are looking to compare a UDP response with a string stored in Parse's database for our app. This issue is that I can't seem to get the strings to be considered equal by the isEqualToString function. Here's the code I have running now, I have tried a few work-arounds I've seen in other questions but it still doesn't work. - (BOOL) onUdpSocket:(AsyncUdpSocket *)sock didReceiveData:(NSData *)data withTag:(long)tag fromHost:(NSString *

ios 融云自定义消息

由 瘦欲@ 提交于 2019-12-23 12:56:11
关于在融云上创建自己的应用、集成 SDK、初始化等一些基本的我们在这就不多说了，按照他的教程可以很容易的完成。 ①会话列表的实现 会话列表的实现其实也很简单，就是创建一个继承于RCConversationListViewController的控制器，然后重写 init 的方法，这个里边我们需要设定需要显示的会话类型。 -(id)init{ self = [super init]; /** <设置会话列表头像为圆形> **/ [self setConversationAvatarStyle:RC_USER_AVATAR_CYCLE]; if (self) { //设置需要显示哪些类型的会话 [self setDisplayConversationTypes:@[@(ConversationType_PRIVATE), @(ConversationType_DISCUSSION), @(ConversationType_CHATROOM), @(ConversationType_GROUP), @(ConversationType_APPSERVICE), @(ConversationType_SYSTEM)]]; //设置需要将哪些类型的会话在会话列表中聚合显示 [self setCollectionConversationType:@[@(ConversationType
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