久久久久久夜精品精品免费啦,久久精品国产国产精品四凭,久久er国产精品免费观看8

Wangkeke — Sun, 03 Jun 2012 09:34:00 GMT

1.创徏

通过xib创徏

通过代码创徏

一个UINavigationcontroller包括 navigation bar,可选的navigation toolbar,RootViewController.

2.��D��?/h1>

有四个方�?/p>

– pushViewController:animated:

– popViewControllerAnimated:

– popToRootViewControllerAnimated:

– popToViewController:animated:

- (void)tableView:(UITableView *)tableView
        didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    [[tableView cellForRowAtIndexPath:indexPath] setSelected:NO animated:YES];//1.
 
    DetailsViewController *detailsViewController = [[DetailsViewController alloc]
        initWithNibName:@"DetailsViewController" bundle:nil];
    [self.navigationController pushViewController:detailsViewController];
    [detailsViewController release];
}

3.配置Navigation bar

可能大家想直接访问navigationcontroller 的navigation bar。但是通常我们不这样做。而是�l�护每个viewcontroller�?navigation item�?/p>

�q�里不要��navigation item �?navigation bar ��h��Q�navigation item不是UIView的子�c�R��它是一个用来更新navigtion bar的存储信息的�c�R�?/p>

�q�是上代码说�?

- (void)tableView:(UITableView *)tableView
        didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
  [[tableView cellForRowAtIndexPath:indexPath] setSelected:NO animated:YES];
 
  Person *person;
 
  // Some code that sets person based on the particular cell that was selected
 
  DetailsViewController *detailsViewController = [[DetailsViewController alloc]
    initWithNibName:@"DetailsViewController" bundle:nil];
  detailsViewController.navigationItem.title = person.name;
  [self.navigationController pushViewController:detailsViewController];
  [detailsViewController release];
}

detailsViewController.navigationItem.title = person.name;�q�句话的意思就是把二��界面的导航标题设�|�成person.name

要注意两�?1.我们�q�没有直接操作navigation bar 2.在push 新的controller之前讄��标题

当新的detailcontroller被push后，UINavigationController会自动更新navigation bar�?/p>

4.�q�回按钮

默认情况下，当你��一个新的viewcontroller推入栈的时候，�q�回按钮��显�C�前一个页面的controller�?navigation item的title�?/p>

如果惛_��制返回按钮的标题�q�有事�g的话�Q�可以用以下代码�?/p>

UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@"Back"
      style:UIBarButtonItemStylePlain target:nil action:nil];
self.navigationItem.backBarButtonItem = backButton;
[backButton release];

注意�Q�这里的self是第一�U�的view controller。这��L��话第二��的页面将昄��“Back”

5.左右按钮

navigation item�q�有两个属性leftBarButtonItem rightBarButtonItem�?/p>

一般leftBarButtonItem只出现在RootviewController中��用，因�ؓ其他��面一般都昄��一个返回按钮�?/p>

UIBarButtonItem *settingsButton = [[UIBarButtonItem alloc] initWithTitle:@"Settings"
      style:UIBarButtonItemStylePlain target:self action:@selector(handleSettings)];
self.navigationItem.rightBarButtonItem = settingsButton;
[settingsButton release];

�q�会在右侧添加一�?#8220;Setting”的按钮，�q�触发handleSetting事�g�?/p>

6.在首��隐藏Navigation Bar

在RootViewController.m中实现如下：

- (void)viewWillAppear:(BOOL)animated {
	[super viewWillAppear:animated];
 
	[self.navigationController setNavigationBarHidden:YES animated:YES];
}
 
- (void)viewWillDisappear:(BOOL)animated {
	[super viewWillDisappear:animated];
 
	[self.navigationController setNavigationBarHidden:NO animated:YES];
}

�q�篇文章��译�?a >http://www.iosdevnotes.com/2011/03/uinavigationcontroller-tutorial/

Wangkeke 2012-06-03 17:34 发表评论

IOS5 JSON

Wangkeke — Sat, 02 Jun 2012 15:46:00 GMT

IOS5.0开始支持JSON�Q�所以不用第三方的解析了�?/span>

//��?/span>Foundation(NSDictionary�?/span>NSData) 转换�?/span>JSon格式�?/span>NSData 用来发�?/span>

//+ dataWithJSONObject:options:error:

//��?/span>JSON格式�?/span>Data转换�?/span>Foundation(NSDictionary�?/span>NSData) 用来解析

//+ JSONObjectWithData:options:error:

code:

https://github.com/cokecoffe/ios-demo/tree/master/HTTP

解析json成dic对象
-(void)fetchedData:(NSData*)responseData {//parse out the json dataNSError* error;
NSDictionary* json =[NSJSONSerialization
JSONObjectWithData:responseData //1
options:kNilOptions
error:&error];
NSArray* latestLoans =[json objectForKey:@"loans"]; //2
NSLog(@"loans: %@", latestLoans); //3
}
把对象生成json string
//build an info object and convert to json
NSDictionary* info =[NSDictionary dictionaryWithObjectsAndKeys:[loan objectForKey:@"name"],
@"who",
[(NSDictionary*)[loan objectForKey:@"location"]
objectForKey:@"country"],
@"where",
[NSNumber numberWithFloat: outstandingAmount],
@"what",
nil];
//convert object to data
NSData* jsonData =[NSJSONSerialization dataWithJSONObject:info
options:NSJSONWritingPrettyPrinted error:&error];
//print out the data contents
jsonSummary.text =[[NSString alloc] initWithData:jsonData
encoding:NSUTF8StringEncoding];
��d��json�Ҏ��至dic
@interfaceNSDictionary(JSONCategories)
+(NSDictionary*)dictionaryWithContentsOfJSONURLString:(NSString*)urlAddress;
-(NSData*)toJSON;
@end
@implementationNSDictionary(JSONCategories)
+(NSDictionary*)dictionaryWithContentsOfJSONURLString:(NSString*)urlAddress{
NSData* data =[NSData dataWithContentsOfURL:[NSURL URLWithString: urlAddress]];
__autoreleasing NSError* error =nil;
id result =[NSJSONSerialization JSONObjectWithData:data
options:kNilOptions error:&error];
if(error !=nil)returnnil;
return result;
}
-(NSData*)toJSON{
NSError* error =nil;
id result =[NSJSONSerialization dataWithJSONObject:self
options:kNilOptions error:&error];
if(error !=nil)returnnil;
return result;
}@end
使用列子
NSDictionary* myInfo =[NSDictionary dictionaryWithContentsOfJSONURLString:@"http://www.yahoo.com/news.json"];
NSDictionary* information =[NSDictionary dictionaryWithObjectsAndKeys:@"orange",@"apple",@"banana",@"fig",nil];
NSData* json =[information toJSON];
判断是否可json�?
BOOL isTurnableToJSON =[NSJSONSerialization isValidJSONObject: object]

Wangkeke 2012-06-02 23:46 发表评论

Wangkeke — Thu, 31 May 2012 15:37:00 GMT

看着国外�|�站的教�E�，写了一个小例子�Q�一个联�p�M�h的程序，包括 �Q�姓名、地址、电话）三项内容�Q�通过两个按钮�Q�可以将信息保存或者查询数据库已有的信息�?/p>

UI��׃��说了�Q�比较简单。脓一下关键代码，具体的话�q�是�ȝ��源代�?正想办法传，我这git出点问题)�?/p>

/*�Ҏ��路径创徏数据库�ƈ创徏一个表contact(id nametext addresstext phonetext)*/

- (void)viewDidLoad

{

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

NSString *docsDir;

NSArray *dirPaths;

// Get the documents directory

dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

docsDir = [dirPaths objectAtIndex:0];

// Build the path to the database file

databasePath = [[NSString alloc] initWithString: [docsDir stringByAppendingPathComponent: @"contacts.db"]];

NSFileManager *filemgr = [NSFileManager defaultManager];

if ([filemgr fileExistsAtPath:databasePath] == NO)

{

const char *dbpath = [databasePath UTF8String];

if (sqlite3_open(dbpath, &contactDB)==SQLITE_OK)

{

char *errMsg;

const char *sql_stmt = "CREATE TABLE IF NOT EXISTS CONTACTS(ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT, ADDRESS TEXT,PHONE TEXT)";

if (sqlite3_exec(contactDB, sql_stmt, NULL, NULL, &errMsg)!=SQLITE_OK)

{

status.text = @"创徏表失�?/span>\n";

}

else

{

status.text = @"创徏/打开数据库失�?/span>";

}

/*��数据保存只数据库，当按下保存按钮的时�?/

- (IBAction)SaveToDataBase:(id)sender

{

sqlite3_stmt *statement;

const char *dbpath = [databasePath UTF8String];

if (sqlite3_open(dbpath, &contactDB)==SQLITE_OK) {

NSString *insertSQL = [NSString stringWithFormat:@"INSERT INTO CONTACTS (name,address,phone) VALUES(\"%@\",\"%@\",\"%@\")",name.text,address.text,phone.text];

const char *insert_stmt = [insertSQL UTF8String];

sqlite3_prepare_v2(contactDB, insert_stmt, -1, &statement, NULL);

if (sqlite3_step(statement)==SQLITE_DONE) {

status.text = @"已存储到数据�?/span>";

name.text = @"";

address.text = @"";

phone.text = @"";

}

else

{

status.text = @"保存��p�|";

}

sqlite3_finalize(statement);

sqlite3_close(contactDB);

}

/*�Ҏ��输入的姓名来查询数据*/

- (IBAction)SearchFromDataBase:(id)sender

{

const char *dbpath = [databasePath UTF8String];

sqlite3_stmt *statement;

if (sqlite3_open(dbpath, &contactDB) == SQLITE_OK)

{

NSString *querySQL = [NSString stringWithFormat:@"SELECT address,phone from contacts where name=\"%@\"",name.text];

const char *query_stmt = [querySQL UTF8String];

if (sqlite3_prepare_v2(contactDB, query_stmt, -1, &statement, NULL) == SQLITE_OK)

{

if (sqlite3_step(statement) == SQLITE_ROW)

{

NSString *addressField = [[NSString alloc] initWithUTF8String:(const char *)sqlite3_column_text(statement, 0)];

address.text = addressField;

NSString *phoneField = [[NSString alloc] initWithUTF8String:(const char *)sqlite3_column_text(statement, 1 )];

phone.text = phoneField;

status.text = @"已查到结�?/span>";

[addressField release];

[phoneField release];

}

else {

status.text = @"未查到结�?/span>";

address.text = @"";

phone.text = @"";

}

sqlite3_finalize(statement);

}

sqlite3_close(contactDB);

}

Wangkeke 2012-05-31 23:37 发表评论

IOS block 教程

Wangkeke — Thu, 31 May 2012 05:47:00 GMT

摘要: http://pernghh.pixnet.net/blog/trackback/eac87d412e/33563409 本文来自台湾的某开发�h员的博客�Q�被墙，感觉讲的比较易懂�Q�所以引�q�来。文字简体化了，原来是繁体，变数=变量�Q�这个注意一下�? 本章学习目标�Q?1. 了解何谓block�?2. 了解block的��用方法�?Block 是iOS�?.0之后新增的程式语法，严格来说bloc... 阅读全文

Wangkeke 2012-05-31 13:47 发表评论

Wangkeke — Wed, 23 May 2012 14:51:00 GMT

Objective-C不支持多重��承，但是我们有方法实��C��l�承.

举个例子�Q�加入对象A无法处理消息fun�Q�而对象B可以处理�Q�此时A已经�l�承于类C�Q�所以此时A不能再��承B。我们可以用消息转发的方式，来将消息转发�l�能够处理fun消息的对象B�?/span>

当然可以�q�么实现

1 A: 
2 -fun 
3 { 
4         if([B respondTo:@selector(fun)]) 
5         { 
6                 return [B fun]; 
7         } 
8         return self; 
9 }

�q�样��单的��消息�{发出去，但是此方式欠妥，特别是当很多消息都要A来处理，但是A又无法处理的时候，你需要实现各�U�fun来提供每一�U�方法处理方式。�ƈ且当写下代码的时候，所能处理的消息集合也就必须��定下来�Q�也��是说是静态的�?/span>

有一�U�解��x��案可以解��x��问题 : forwardInvocation�Q�方法，此方法��承与NSObject。不�q�NSObject中此�Ҏ��的实玎ͼ�只是��单的调用�?span style="color: #666666; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; background-color: #ffffff; display: inline !important; float: none;">doesNotRecognizeSelector:

我们要做的是重写需要�{发消息的�c�A�?span style="color: #666666; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; background-color: #ffffff; display: inline !important; font-family: 'Hiragino Sans GB'; font-size: 13px;">forwardInvocation�Ҏ��Q�以实现��消息�{发给能处理fun消息的对象�?/span>

- (void)forwardInvocation:(NSInvocation *)anInvocation

    if ([B respondsToSelector:[anInvocation selector])

        [anInvocation B];

    else

        [super forwardInvocation:anInvocation];

�q�有关键一步，是重�?span style="color: #000000; font-family: Arial; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 26px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; background-color: #ffffff; display: inline !important; float: none;">methodSignatureForSelector�Ҏ��Q�此�Ҏ��是在向对象发送不能处理的消息的时候调用的�Q�此�Ҏ��可判断消息fun是否有效注册。如果注册过fun�Q�那么则�q�回fun消息的地址之类的信息，如果无效则返回nil�Q�那么就crash掉。所以我们要把fun消息注册��Z��个有效的�?/span>

   1 - (NSMethodSignature*)methodSignatureForSelector:(SEL)selector
2 {
3     NSMethodSignature* signature = [super methodSignatureForSelector:selector];
4     
5     if (!signature)//如果父类中无注册fun消息�Q�那么将B注册
6         signature = [B methodSignatureForSelector:selector];
7     
8     return signature;
9 }

�q�样一来，消息fun��被转发至B�?/p>

我们来说一下向一个对象发送消息后�Q�系�l�的处理��程

1.首先发送消息[A fun];

2.�pȝ��会检查A能否响应�q�个fun消息�Q�如果能响应则A响应

3.如果不能响应�Q�则调用methodSignatureForSelector:来询问这个消息是否有效，包括�ȝ��c�M��询问�?/p>

4.接着调用forwardInvocation:此时步骤三返回nil或者可以处理消息的消息地址。如果nil则crash�Q�如果有可以处理fun消息的地址�Q�那么�{发成功�?/p>

Wangkeke 2012-05-23 22:51 发表评论

界面构徏

Wangkeke — Sat, 05 May 2012 09:30:00 GMT

三种�Ҏ��

1.Interface Buider

2.用代码实现在loadview�?/p>

3.loadview中加载xib文�g�Q�将对象解析

Wangkeke 2012-05-05 17:30 发表评论

Wangkeke — Sat, 05 May 2012 02:57:00 GMT

��单的介绍

1.1定义协议:

创徏一�?h文�g

  1: _MyProtocolName.h
  2: @protocol MyProtocolName 

  3: @end

�?协议中没有变�?

是代表在此声明的协议是NSObject协议的衍生协议（不是NSObject�c?;

1.2使用协议:

  1: @interface CustomView:UIView

代表CustomView遵��@我们制定的这个协议，需要实现协议的�Ҏ��

1.3用协议修饰变�?

如果�q�样定义一个变�?

  1:   idmyNewVariable;

那么myNewVaiable是遵循我们制定的�q�个MyProtocolName协议�?/p>

如果定义函数�?

  1: - (void) doSomethingWithThisObject: (id) aObject

那么�q�个函数的参数是需要遵循我们制定的�q�个MyProtocolName协议�?/p>

============接下来看下如何利用协议实现委�?========

目的�Q�将A的事情委托给B来做
步骤1.在A中声明协议，卌��委托出去的事情（�Ҏ��Q��?br /> 步骤2.A中声明一个委托对象，卌��委托�l�谁��d��Q�用id<协议名字>委托对象名；
步骤3.比如惌��B做A的事情，那么B的interface中要宣布自己遵��@A中制定的那个协议�?br /> 步骤4.A调用委托执行那�g事情�?即[delegate fun]

A.h------------------------------------------------

@protocol Mydelegate//协议的声�?/p>

-(void)Fun;

@end

@interface A:NSObject

{

id delegate;//声明一个委托对象，我们要把事情委托�l�实现Mydelegate协议的类

}

@property(assign,nonatomic) id delegate;

@end

A.m---------------------------------------------

@implementation

-(void)init

{

delegate = B;

}

-(void)FunToOther

{

[delegate Fun];//��消息发送给委托��d��?/p>

}

@end

委托对象的实�?/p>

B.h---------------------------------------------

#import"A.h"

@interface B:NSObject

@end

B.m---------------------------------------------

@implementation

-(void)fun

{

//实现Mydelegate中制定的�Ҏ��

}

@end

�q�样的话A��可以委托B��d��fun�q��g事情了�?/p>

Wangkeke 2012-05-05 10:57 发表评论

Objective-C中委托和协议

Wangkeke — Wed, 25 Apr 2012 15:18:00 GMT

摘要: from:http://mobile.51cto.com/iphone-283416.htm Objective-C中委托和协议是本文要介绍的内容，委托和协议是两个概念�Q�协议实际上相当于C++中的�U�虚�cȝ��概念�Q�只定义�q�只能由其它�c�L��实现。而委托类��g��Java中的接口。（Objective-C实现委托�q�种机制是利用协议来实现的，�q�种说法我现在认为是不对的，理由下述�Q�）�?Objective-C�?.. 阅读全文

Wangkeke 2012-04-25 23:18 发表评论

Foundation Kit

Wangkeke — Sun, 22 Apr 2012 08:58:00 GMT

1.NSRange

   1:  typedef struct _NSRange

2:

   3:  {

4:

   5:      unsigned int location;

6:

   7:      usingned int length;

8:

   9:  }NSRange;

三种创徏NSRange的方法：

   1:    1.NSRange range;

2:

   3:        range.location = 17;

4:

   5:        range.length = 4;

6:

   7:    2.NSRange range = {17,4};

8:

   9:    3.NSRange range = NSMakeRange(17,4);

2.NSPoint NSSize NSRect

   1:  typedef struct _NSPoint

   2:  {

   3:    float x;

   4:    float y;

   5:  }NSPoint;

6:

   7:  typedef struct _NSSize

   8:  {

   9:    float width;

  10:    float height;

  11:  }NSSize;

12:

  13:  typedef struct _NSRect

  14:  {

  15:    NSPoint origin;

  16:    NSSize size;

  17:  }NSRect;

创徏�Ҏ��:NSMakePoint();NSMakeSize();NSMakeRect();

//以上几个数据�c�d��不是对象而是struct�Q�原因是因�ؓ满��性能需求�?

3.NSString NSMutableString

创徏�Ҏ��:

   1:  + (id)stringWithFormat:(NSString *)format, ...

2:

   3:  NSString *height;

   4:  height = [NSString initWithFormat:@"Your height is %d feet",5];

5:

创徏�Ҏ��:

   1:  NSMutableString *string;

2:

   3:  string = [NSMutableString stringWithCapacity:42];

4.NSArray NSMutableArray

用来存储Objective-C的对象，而不能存储C语言中的基本数据�c�d��.

创徏�Ҏ��:

   1:  + (id)arrayWithObjects:(id)firstObj, ...

2:

   3:  NSArray *array;

   4:  array = [NSArray arrayWithObjects:@"one",@"two",@"three",nil];

5.NSEnumerator(Tiger�pȝ��)

   1:  NSEnumerator *enumerator

   2:  enumerator = [array objectEnumerator];

3:

   4:  id thingie;

   5:  while(thingie = [enumerator nextObject])

   6:  {

   7:      NSLog(@"i found %@",thingie);

   8:  }

5.1快速枚�?/font>

   1:  for(NSString *string in array)

   2:  {

   3:      NSLog(@"i found %@",string);

   4:  }

6.NSDictionary

创徏�Ҏ��Q?/p>

+(id)dictionaryWithObjectAndKeys:(id)fristObject,...;

��d��元素�Q?/p>

-(void)setObject:(id)anObject forkey:(id)akey;

(fuck!!写到�q�，windows live writer报错�Q�后面写的都没保存�?

7.NSNumber

8.NSValue

9.NSNull

Wangkeke 2012-04-22 16:58 发表评论

OS X Terminal字体颜色讄��

Wangkeke — Fri, 13 Apr 2012 15:28:00 GMT

摘要: OS X 默认�l�端默认白底黑字�Q�看��h��不大舒服�Q�于是想换下字体颜色�Q�按照文件类型来昄��不同的颜�Ԍ�� ?~ 先徏立一个文件 ~/.bash_profile 加入下面的两行：export CLICOLOR=1export LSCOLORS=gxfxaxdxcxegedabagacad存盘�Q?退出Terminal, 重�vTerminal.更改LSCOLORS可以有不同的颜色效果�?--------... 阅读全文

Wangkeke 2012-04-13 23:28 发表评论

NSArray Sort

Wangkeke — Thu, 05 Apr 2012 09:09:00 GMT

Sorting

Parameters

comparator

A selector that identifies the method to use to compare two elements at a time. The method should returnNSOrderedAscending if the receiving array is smaller than the argument, NSOrderedDescending if the receiving array is larger than the argument, and NSOrderedSame if they are equal.

//selector定义了一个比较两个数�l�元素的�Ҏ��Q�如果此�Ҏ��q�回NSOrderedAscending说明此元素比参数元素��，如果�q�回NSOrderedDescending说明接收的数�l�元素比参数元素大，NSOrderedSame相等�?/code>



Example:


一个元素�ؓNSString的数�l�可以通过调用NSString�c�M���?a style="color: #3366cc; text-decoration: none;" href="file:///Users/Escaton/Library/Developer/Shared/Documentation/DocSets/com.apple.adc.documentation.AppleiOS5_1.iOSLibrary.docset/Contents/Resources/Documents/documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html#//apple_ref/occ/instm/NSString/caseInsensitiveCompare:" target="_self">caseInsensitiveCompare:�Ҏ��作�ؓSelector�?/em>


假设anArray已经存在�Q?/em>





 NSArray *sortedArray =




         [anArray sortedArrayUsingSelector:@selector(caseInsensitiveCompare:)];





Wangkeke 2012-04-05 17:09 发表评论



如何在多台机器上�׃�nIOS证书
Wangkeke — Tue, 13 Mar 2012 03:01:00 GMT
1. 下蝲.cer文�g到别的机器。就是在IDP上的那个�?/span>
2. 从发送申��h���Ӟ��certificate Request�Q�后�~�名�ؓcertSigningRequest�Q�的机器上把证书对应的private key�Q?p12文�g�Q�导出，密码自己定，要记住，后面导入的时候要用�?/span>
3. 在你需要的机器上安装证书（.cer�Q�，导入�U�钥文�g(.p12)。安装对应App的provisioning profile�?/span>
4. Over�Q�你可以用其他机器开发了�?/span>


注：必须得从甌���机器上导出private key.到其他机器上
一、成员介�l?/span>
1.    Certification(证书)
证书是对电脑开发资格的认证�Q�每个开发者帐��h��一套，分�ؓ两种�Q?/span>
1)    Developer Certification(开发证�?
安装在电脑上提供权限�Q�开发�h员通过讑֤��q�行真机���试�?/span>
可以生成副本供多台电脑安装；
2)      Distribution Certification(发布证书)
安装在电脑上提供发布iOS�E�序的权限：开发�h员可以制做测试版和发布版的程序�?/span>
不可生成副本�Q�仅有配�|�该证书的电脑才可��用；�Q�副本制做介�l�在下面Keychain中介�l�）

2.    Provisioning Profile(授权文�g)
授权文�g是对讑֤�如iPod Touch、iPad、iPhone的授权，文�g内记录的是设备的UDID和程序的App Id�Q�即使被授权的设备可以安装或调试Bundle identifier与授权文件中记录的App Id对应的程序�?/span>
开发者帐号在创徏授权文�g时候会选择App Id�Q�（开发者帐号下App Id中添加，单选）和UDID�Q�开发者帐号下Devices中添加最�?00个，多选）�?/span>
授权文�g分�ؓ两种�Q�对应相应的证书使用�Q?/span>
1)    Developer Provisioning Profile(开发授权文�?
在装有开发证书或副本的电脑上使用�Q�开发�h员选择该授权文仉���过电脑���程序安装到授权文�g记录的设备中�Q�即可进行真机测试�?/span>
注意�Q�确保电脑有权限真机调试�Q�即安装了开发证书或副本�Q�在开发工具中�E�序的Bundle identifier和选中使用的授权文件的App Id要一��_���q�接调试的设备的UDID在选中的授权文件中有记录�?/span>
2)    Distribution Provisioning Profile(发布授权文�g)
在装有发布证书的电脑上（即配�|�证书的电脑�Q�只有一収ͼ�制做���试版和发布版的�E�序�?/span>
发布版就是发布到App Store上的�E�序文�g�Q�开发者帐号创建授权文件时选择store选项�Q�选择App Id�Q�无需选择UDID�Q?/span>
���试版就是在发布之前交给���试人员可同步到讑֤�上的�E�序文�g�Q�开发者帐号创建授权文件时选择AdHoc�Q�选择App Id和UDID�Q�只有选中的UDID对应的设备才可能安装上通过该授权文件制做的�E�序�?/span>
3.    Keychain(开发密�?
安装证书成功的情况下证书下都会生成Keychain�Q�上面提到的证书副本���是通过配置证书的电脑导出Keychain�Q�就�?p12文�g�Q�安装到其他机子上，让其他机子得到证书对应的权限。Developer Certification���可以制做副本Keychain分发到其他电脑上安装�Q���其可以进行真机测试�?/span>
注意�Q�Distribution Certification只有配置证书的电脑才可��用，因此即��导出导出Keychain安装到其他电脑上�Q�其他电脑也不可能具有证书的权限�?/span>


Wangkeke 2012-03-13 11:01 发表评论


IOS中编码�{换方�?转）
Wangkeke — Mon, 06 Feb 2012 03:18:00 GMT
     摘要: IOS开发中�~�码转换�Ҏ��是本文要介绍的内容，主要是来学习一下编码�{换的内容�Q�不多说�Q�直接来看详�l�内宏V��我们可以��用以下方法进行编码�{换。NSString* str2 = [NSString stringWithCString:str1 encoding:enc1]; 再调用NSString的cStringUsingEncoding:enc...  阅读全文

Wangkeke 2012-02-06 11:18 发表评论


Wangkeke — Sat, 04 Feb 2012 15:09:00 GMT
属性参数有以下三种Writability、Setter、Semantics Atomicity

Writability
These attributes specify whether or not a property has an associated set accessor. They are mutually exclusive.
readwrite Indicates that the property should be treated as read/write. This attribute is the default.readonly  If you use the @synthesize directive in the implementation block, only the getter method is synthesized. Moreover, if you attempt to assign a value using the dot syntax, you get a compiler error.
Setter Semantics

These attributes specify the semantics of a set accessor. They are mutually exclusive.
strong
weak
copy    Specifies that a copy of the object should be used for assignment.The previous value is sent a release message.The copy is made by invoking the copy
                method. This attribute is valid only for object types, which must implement the NSCopying  protocol.
                 指定应该使用对象的副本（深度复制�Q�，前一个值发送一条release消息。基本上像retain�Q�但是没有增加引用计敎ͼ�是分配一块新的内
                 存来攄���它�?br />
assgin Specifies that the setter uses simple assignment. This attribute is the default. You use this attribute for scalar types such as NSInteger and CGRect.
            setter�Ҏ��直接赋��|��而不�q�行retain操作�Q�比如NSInteger和CGRect�Q�它们不是对象，所以不用release�?br />
retain Specifies that retain should be invoked on the object upon assignment.The previous value is sent a release message.
            setter�Ҏ��对参数进行release旧��|��再retain新�?例如�Q?/span>    
　     1.-(void) setObj:(ClassX*) value
         2.{
　      3.         if (obj != value)
　      4.         {
　      5.                   [obj release];
　      6.                   obj = [value retain];
　      7.         }
　      8.}

Atomicity

You can use this attribute to specify that accessor methods are not atomic. (There is no keyword to denote atomic.)
nonatomic Specifies that accessors are nonatomic. By default, accessors are atomic.
 


Wangkeke 2012-02-04 23:09 发表评论


NSDictionary
Wangkeke — Sat, 04 Feb 2012 14:16:00 GMT
     摘要: The NSDictionary class declares the programmatic interface to objects that manage immutable associations of keys and values.NSDictionary�c�d��义了对于objects的接口，用于���键值和数值关联�v来。Use this class or its su...  阅读全文

Wangkeke 2012-02-04 22:16 发表评论


Wangkeke — Tue, 31 Jan 2012 07:15:00 GMT
     摘要: NSRange的定�?typedef struct _NSRange
{
  NSUInteger location;
  NSUInteger length;
} NSRange;
 
NSRange是一个结构体�Q�其中location是一个以0为开始的index�Q�length是表�C�对...  阅读全文

Wangkeke 2012-01-31 15:15 发表评论


nonatomic
Wangkeke — Wed, 30 Nov 2011 11:51:00 GMT
它要与@synthesize一起��用才有意�?
atomic的意思就是setter/getter�q�个函数是一个原语操作。如果有多个�U�程同时调用setter的话�Q�不会出现某一个线�E�执行setter全部语句之前�Q�另一个线�E�开始执行setter情况�Q�相当于函数头尾加了锁一�?
nonatomic不保证setter/getter的原语行�Q�所以你可能会取��C��完整的东�ѝ�?比如setter函数里面改变两个成员变量�Q�如果你用nonatomic的话�Q�getter可能会取到只更改了其中一个变量时候的状�?.


Wangkeke 2011-11-30 19:51 发表评论


Target failed to run: Remote exception encountered: 'Failed to get task for pid #
Wangkeke — Wed, 16 Nov 2011 09:23:00 GMT
I got this error just recently when i tried to use the instrument to profile my iPad application on the device. And when i selected "Profile" from the menu, and instrument was opened. Then i selected "Allocations" or "Leaks", i just heard "Funk" and then nothing happened. So i checked out the Console and found out some errors about missing plug-ins for these selected functions. So bascially, it's because some plug-in in your Xcode application folder was missing or crrupt. So better remove Xcode completely through Command line "sudo /Developer/Library/uninstall-devtools --mode=all",then reinstall it. You should be good to go.  
Then when i rerun my app with instrument i received another error which was the topic of this post. After searching a little bit. It's actually very easy to fix.

1.Make sure, the "Profile" scheme is using "debug" not "release" build configuration

Here is the way how to change it: In Xcode4, select "Product/Edit Scheme" from the top menu then click on the "Profile" button on the left panel. Under the "Info" tab you will see "Build configuration", make sure "Debug" is selected.

Wangkeke 2011-11-16 17:23 发表评论


OpenGL ES multithreading and EAGLSharegroup
Wangkeke — Tue, 15 Nov 2011 09:36:00 GMT
http://developer.apple.com/library/ios/#qa/qa1612/_index.htmlTechnical Q&A QA1612
OpenGL ES multithreading and EAGLSharegroup
Q:  In my multithreading OpenGL ES application, I load textures (or vertices) on a secondary thread then draw them onto screen on the main thread. Occasionally I see blank images or application freezes. What could be causing this?
A: In my multithreading OpenGL ES application, I load textures (or vertices) on a secondary thread then draw them onto screen on the main thread. Occasionally I see blank images or application freezes. What could be causing this?
It is very likely that the main and background threads are accessing the same OpenGL ES context simultaneously.
OpenGL ES commands for a specific context are not reentrant. You should never have more than one thread accessing a single context at the same time. It is highly recommended that you use only one thread per context.
Listing 1 demonstrates how to create and make current a context contextB using the sharegroup property (an EAGLSharegroup object) obtained from another already-allocated context contextA. Such contexts that belong to the same sharegroup can share resources, for example, textures, FBOs, etc. So you may use contextB on the secondary thread to create textures, and contextA on the main thread to draw the textures onto screen.

Listing 1  Creating a context belonging to the same sharegroup

contextB = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1      
                             sharegroup:contextA.sharegroup]; 
if (!contextB || ![EAGLContext setCurrentContext:contextB]) 
{       
 // Handle errors here 
}
 

Important: The only way to get a valid EAGLSharegroup object is to query it from an existing EAGLContext object. Any other method, such as explicitly creating it, will result in crashes or undefined behavior.
When you want to modify a resource on one context, you must first make sure it is not currently in use on another, even if you are accessing them from different threads. Once you modify it, its state is undefined until flushing and binding the object have been completed. You should never use an undefined object, whether you access it from a different context or not.
Take a texture as an example. Listing 2 shows the correct way to deal with multiple contexts. Any other ordering will not ensure consistent and correct behavior. It may result in data corruption, leaks, or crashes otherwise.

Listing 2  Modifying a texture on context B prior to using it on context A

// 1. Ensure context A is not bound to the texture
 [EAGLContext setCurrentContext:contextA];
 glBindTexture(GL_TEXTURE_2D, 0);  

// 2. Call flush on context A  
glFlush();   

// 3. Modify the texture on context B 
[EAGLContext setCurrentContext:contextB]; 
glBindTexture(GL_TEXTURE_2D, texId); 

 //
 Modify the texture data here
 //

// 4. Call flush on context B 
glFlush();  
 
// 5. Rebind the texture on context A 
[EAGLContext setCurrentContext:contextA];
 glBindTexture(GL_TEXTURE_2D, texId); 

// 6. Use the texture as normal on context A
 
For more information on the EAGLContext/-initWithAPI:sharegroup: API and the sharegroup property, see the EAGLContext Class Reference.


Wangkeke 2011-11-15 17:36 发表评论


Wangkeke — Tue, 11 Oct 2011 15:03:00 GMT
    今天���试提出新需求，要求Kpad软�g启动后，默认�l�定戉K����h��路由名称�Q�SSID�Q�的房台�?br />
    �Ҏ��如下�Q?.获取到当前连接的SSID�?br />
                  2.从服务器��d��所有房台的信息�Q�将房台号与获取的SSID�q�行比较�Q�然后绑定此房台�?br />

关于获取路由SSID的方法：
- (id)fetchSSIDInfo
{
    CFArrayRef  ifs = CNCopySupportedInterfaces();

    CFDictionaryRef info = CNCopyCurrentNetworkInfo(CFArrayGetValueAtIndex(ifs, 0));
          
    NSLog(@"SSID: %@",(NSString *)CFDictionaryGetValue (info,kCNNetworkInfoKeySSID ));
    
    [ifs release];
    [info release];

}


Wangkeke 2011-10-11 23:03 发表评论

久久久久久夜精品精品免费啦,久久精品国产国产精品四凭,久久er国产精品免费观看8

1.创徏

通过xib创徏

3.配置Navigation bar

4.�q�回按钮

5.左右按钮

6.在首��隐藏Navigation Bar

IOS5 JSON

IOS block 教程

界面构徏

Objective-C中委托和协议

Foundation Kit

5.NSEnumerator(Tiger�pȝ��)

OS X Terminal字体颜色讄���

NSArray Sort

Sorting

Parameters

如何在多台机器上�׃�nIOS证书

IOS中编码�{换方�?转）

属性参数有以下三种Writability、Setter、Semantics AtomicityWritability

AtomicityYou can use this attribute to specify that accessor methods are not atomic. (There is no keyword to denote atomic.)nonatomic Specifies that accessors are nonatomic. By default, accessors are atomic.

NSDictionary

nonatomic

Target failed to run: Remote exception encountered: 'Failed to get task for pid #

OpenGL ES multithreading and EAGLSharegroup

OpenGL ES multithreading and EAGLSharegroup

Q: In my multithreading OpenGL ES application, I load textures (or vertices) on a secondary thread then draw them onto screen on the main thread. Occasionally I see blank images or application freezes. What could be causing this?

OS X Terminal字体颜色讄��

属性参数有以下三种Writability、Setter、Semantics Atomicity

Writability

Atomicity

You can use this attribute to specify that accessor methods are not atomic. (There is no keyword to denote atomic.)
nonatomic Specifies that accessors are nonatomic. By default, accessors are atomic.