我提到太多链接并试过,但没有成功.如果有人有想法,那么请与我分享.我阅读了可可豆荚文件,并多次尝试安装,但由于启动步骤总是失败.我发现一个错误,我无法先安装宝石.任何人都可以逐一给我这些步骤吗?如何安装或演示.
这是我试过的一个链接.
屏幕截图是指我给出的此控制台错误:

我得到的日期字符串是2014-01-08T21:21:22.737 + 05:30这种格式.我如何将其授予NSDate?
我试过了:
NSString *currentDateString = @"2014-01-08T21:21:22.737+05:30";
[dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSS+05:30"];
NSDate *currentDate = [dateFormatter dateFromString:currentDateString];
NSLog(@"CurrentDate:%@", currentDate);
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它返回零.有什么想法吗?
我正在编辑自定义UITableViewCell.进入编辑模式时,标签和图像无法正常移动.

- (IBAction) EditTable:(id)sender{
UIButton *btn = (UIButton *)sender;
if(self.editing) {
[super setEditing:NO animated:NO];
[btn setTitle:@"edit" forState:UIControlStateNormal];
[tblView setEditing:NO animated:NO];
} else {
[super setEditing:YES animated:YES];
[btn setTitle:@"done" forState:UIControlStateNormal];
[tblView setEditing:YES animated:YES];
}
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
int count = [arrData count];
if(self.editing) [arrData count];
return count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
DeleteUserCell *cell = (DeleteUserCell *)[tableView …Run Code Online (Sandbox Code Playgroud) 我的应用程序背景较暗,但在iOS 7中,状态栏变得透明.所以我看不到任何东西,角落里只有绿色电池指示灯.如何将状态栏文本颜色更改为绿色或橙色,就像在主屏幕上一样?
我知道
在plist中设置UIViewControllerBasedStatusBarAppearancetoYES
在viewDidLoad做一个[self setNeedsStatusBarAppearanceUpdate];
添加以下方法:
-(UIStatusBarStyle)preferredStatusBarStyle{
return UIStatusBarStyleLightContent;
}
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提前致谢...
我发现下面的代码是合并两个图像,如果有任何人有另一个代码将这两个图像合并为一个图像.
当我将两个uiimageview合并到一个uiimageview中时,最终图像变为黑色或白色阴影.实际遮蔽图像的颜色不会出现在最终图像中

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
self.navigationController.navigationBarHidden = YES;
imgBack = [UIImage imageNamed:@"img1.jpg"];
imgMask = [UIImage imageNamed:@"img2.png"];
imgBackground.image = imgBack;
imgMasking.image = imgMask;
imgFinally = [self maskImage:imgBack withMask:imgMask];
imgFinal.image = imgFinally;
imgBackground.image= nil;
imgMasking.image = nil;
}
- (UIImage *) maskImage:(UIImage *)image
withMask:(UIImage *)maskImage {
CGImageRef maskRef = maskImage.CGImage;
CGImageRef mask = CGImageMaskCreate(CGImageGetWidth(maskRef),
CGImageGetHeight(maskRef),
CGImageGetBitsPerComponent(maskRef),
CGImageGetBitsPerPixel(maskRef),
CGImageGetBytesPerRow(maskRef),
CGImageGetDataProvider(maskRef), NULL, false);
CGImageRef masked = CGImageCreateWithMask([image CGImage], mask);
return …Run Code Online (Sandbox Code Playgroud) 我得到的日期字符串是1991-01-26T00:00:00 + 05:30这种格式来自网络服务.我如何将其授予NSDate?
我试过了:
NSString *p=@"1991-01-26T00:00:00+05:30";
NSDateFormatter *dateformat=[[NSDateFormatter alloc]init];
[dateformat setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSSZZZZ"];
NSDate *datefor=[dateformat dateFromString:p];
[dateformat setDateFormat:@"MM-dd-yyyy hh:mm a"];
NSString *dateStr=[dateformat stringFromDate:datefor];
NSDate *datetype=[dateformat dateFromString:dateStr];
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它返回零.有什么想法吗?