wwwcybcom的专栏

（一）根据给定得图片，从其指定区域截取一张新得图片 -(UIImage *)getImageFromImage{ //大图bigImage //定义myImageRect，截图的区域 CGRect myImageRect = CGRectMake(10.0, 10.0, 57.0, 57.0); UIImage* bigImage= [UIImage

1.你無法得知在相簿中該相片的檔名2.這是我之前的作法，提供您參考：[code]- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo{    //將ImagePicke

对于一个运行在iPhone得app,它只能访问自己根目录下得一些文件（所谓sandbox).一个app发布到iPhone上后，它得目录结构如下：1、其中得 app root 可以用 NSHomeDirectory() 访问到；2、Documents 目录就是我们可以用来写入并保存文件得地方，一般可通过：NSArray *paths = NSSearchPathForDire

Core Image 学习笔记 － 为照片加边框和EXIF信息。http://blog.codingmylife.com/?p=572,433 views, Cocoa, by Allen Dang.最近迷上了摄影，拍了很多照片之后就想上传跟大家分享。到色影无忌和几个摄影论坛上一看，发现很多人的照片都有不错的边框、水印和拍摄信息（相机类型、光圈、快门、拍摄日期等等…

<br />alt+cmd   +上<br />alt+cmd   +左／右 （sdk3.0之后有不同）<br /><br />alt+左/右<br />control+左/右<br />cmd＋左/右<br /><br />alt+shift+左/右<br />control+shift+左/右<br />cmd＋shift+左/右<br /><br />control+shift+e<br /><br />alt+delete<br />control+ delete<br />cmd＋delete<b

<br />如果您希望在 iPhone 应用里加入手动添加大头针的功能，即手指点击屏幕，在接触点上落下一颗大头针，可以看看 CocoaChina 会员“parkerjj”分享的代码<br />- (MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id <MKAnnotation>)annotation<br />{<br />    MKPinAnnotationView *pinView = nil;<br />    if(an

<br />App Icons on iPad and iPhoneQ: How are the icon files in my application bundle used on iPad and iPhone?<br />A: Below are guidelines for handling icon files for iPhone-only apps, iPad-only apps, and universal apps.<br />IMPORTANT: Icons marked with "

<br />App Icons on iPad and iPhoneQ: How are the icon files in my application bundle used on iPad and iPhone?<br />A: Below are guidelines for handling icon files for iPhone-only apps, iPad-only apps, and universal apps.<br />IMPORTANT: Icons marked with "

<br />App Icons on iPad and iPhoneQ: How are the icon files in my application bundle used on iPad and iPhone?<br />A: Below are guidelines for handling icon files for iPhone-only apps, iPad-only apps, and universal apps.<br />IMPORTANT: Icons marked with "

<br />App Icons on iPad and iPhoneQ: How are the icon files in my application bundle used on iPad and iPhone?<br />A: Below are guidelines for handling icon files for iPhone-only apps, iPad-only apps, and universal apps.<br />IMPORTANT: Icons marked with "

 http://blog.airsource.co.uk/index.php/2008/11/11/views-of-uiimagepickercontroller/ Well the new 3.1 OS certainly makes it a lot nicer to change the UI for the UIImagePickerControllerOverlayVi

- (UIImage *) roundCorners: (UIImage*) img{    int w = img.size.width;    int h = img.size.height;        CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();    CGContextRef context = CGBitmap

http://garfieldfox.spaces.live.com/?_c11_BlogPart_BlogPart=blogview&_c=BlogPart&partqs=cat%3DIPhone短信发送和截获方式一：打开/dev/tty.debug使用AT命令操作，这类代码最早的出现在一些开源项目中，改改基本能用，现有的版本用的就是这种方式。缺点：机器必须破解并必须安装到

NSTimer  ＊mTimer = [NSTimer scheduledTimerWithTimeInterval:0.1   target:self selector: @selector(moveUp:) userInfo:nil repeats:YES]; -(void

 #define d_LocalNetAddress http://XXX.XXX.XXX.XXX/a.action        NSString * content = @"Test";        NSInputStream * nis = [[NSInputStream alloc] initWithData:[content dataUsingEncoding:NS

几个网络代码隐藏了真实的服务器IP1、采用CFHTTPMessage等复制代码        CFURLRef myWebserverURLRef = CFURLCreateWithString(kCFAllocatorDefault, CFSTR("http://192.168.0.1234"), NULL);    if(myWebser

异步：（需要实现delegate）NSURLConnection 类：+ (NSURLConnection *)connectionWithRequest:(NSURLRequest *)request delegate:(id)delegate;delegate 方法：接收数据：- (void)connection:(NSURLConnection *)connection

使用NSStream来实现Socket（写的不好的地方，请多批评~）这玩意儿已经折腾我小半年了，因为没有socket开发方面的经验，跌跌撞撞遇到了不少麻烦。以下是目前应用在我程序中的Stream类，真机真网络使用正常，3G和wifi都可以用。只是回调部分写的比较外行……应该还有更好的回调方式。以下代码除了SynthesizeSingleton.h外，都是从我自己的代码里一行一行挑出

 First you need to add your file to the Resources folder of your Xcode project. Then you can access the file like this (assuming the file is called MyFile.txt):NSString *filePath = [

openURL能帮助你运行Maps，SMS，Browser,Phone甚至其他的应用程序。这是Iphone开发中我经常需要用到的一段代码，它仅仅只有一行而已。    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://8004664411"]];这个程序通过基础的协议支持拨打电话的功能译者附：    -(I

http://stackoverflow.com/questions/838266/how-do-i-add-a-uibutton-or-uiswitch-in-tableviewviewforfooterinsection // Need to refactor so that the label is Public Sharing and Priviate Sharing and th

CGLayers are great for drawing - especially when things need to be drawn over and over again. Converting a CGLayer to a UIImage is another story, though. NetSketch uses CGLayers for the drawing canv

- (void)setHoverViewMovedUp:(BOOL)movedUp  {      [UIView beginAnimations:nil context:NULL];      [UIView setAnimationDuration:0.3];        CGRect rect = self.seqHoverView.frame;      if