小编Mic*_*son的帖子

我无法搞清楚NSBundle和DocumentDirectory数据,我有一个相机图片" imageView ",我正在保存NSDocumentDirectoy,然后想要检索它附加到电子邮件,

这里有保存代码:

- (IBAction)saveImage {
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:@"savedImage.png"];
    UIImage *image = imageView.image; // imageView is my image from camera
    NSData *imageData = UIImagePNGRepresentation(image);
    [imageData writeToFile:savedImagePath atomically:NO];   
}

这是新的获取数据代码:

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *appFile = [documentsDirectory stringByAppendingPathComponent:@"savedImage.png"];
    NSData *myData = [[[NSData alloc] initWithContentsOfFile:appFile] autorelease];
    [picker addAttachmentData:myData mimeType:@"image/png" fileName:@"savedImage"];

我一直无法理解这个问题.如果我更改变量名称fifthViewController,则错误消失,但视图控制器不会加载.

丢失.再一次,它可能很简单.

提前致谢.

这是代码:

{
FifthViewController *fifthViewController = [[FifthViewController alloc] initWithNibName:@"FifthView" bundle:nil];

fifthViewController.transactionID = transactionID;
[self.navigationController pushViewController:fifthViewController animated:NO]; 
[fifthViewController release];
 }

我想创建一个NSSagedObject与NsDictionary的内容.和Visa Versa.

我有一个带有对象和键的NSDictionary,它从MYSQL数据库引入并存储到documents目录中.我找不到编辑字典的好信息,所以我想我会尝试NSManaged Object.

如果Object属性发生了变化,我希望能够反转该过程并将对象发回.

找到这个例子的任何帮助都会很棒.

谢谢,

迈克尔

我已经按照以下教程,在模拟器中它工作得很好,但是在我的手机上选择地址时,谷歌地图发布,我想我已经炒了我的大脑.我将它与NavBarContolloer结合使用任何帮助都会很棒.

摘自:Cocoa Touch教程:在iPhone OS上提取地址簿地址值

这是代码:

#import "RootViewController.h"
#import "SecondViewController.h"
#import "ThirdViewController.h"
#import "FourthViewController.h"


@implementation ThirdViewController

@synthesize fourthViewController;
@synthesize firstName;
@synthesize lastName;
@synthesize addressLabel;

-(IBAction)switchPage:(id)sender
{
    if(self.fourthViewController == nil)
    {
        FourthViewController *fourthView = [[FourthViewController alloc]
                                          initWithNibName:@"FourthView" bundle:[NSBundle mainBundle]];
        self.fourthViewController = fourthView;
        [fourthView release];
    }

    [self.navigationController pushViewController:self.fourthViewController animated:YES];
}

-(IBAction)getContact {
    // creating the picker
    ABPeoplePickerNavigationController *picker = [[ABPeoplePickerNavigationController alloc] init];
    // place the delegate of the picker to the controll
    picker.peoplePickerDelegate = self;

    // showing the picker
    [self presentModalViewController:picker animated:YES];
    // …

我有一个想要访问Amazon.com的UIwebview,当我加载amazon.com时,它的格式与我从iphone safari那里去的格式不同.什么告诉像amamzon这样的网站重绘iphone？这是我的代码:

 - (void)viewDidLoad {

NSString *urlAddress = @"http://www.amazon.com/Inventive-Gadgets-Inc-PQFan-Professionally/dp/B000V8ASR6";

//Create a URL object.
NSURL *url = [NSURL URLWithString:urlAddress];

//URL Requst Object
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];

//Load the request in the UIWebView.
[webView loadRequest:requestObj];
 }

- (IBAction) gotofourth{
[self dismissModalViewControllerAnimated:YES];
}

任何帮助都会很棒.

谢谢