objective-c

问题 Previously I am using UILocalNotification for reminder purpose in my application. But as above API is deprecated in iOS 10.0 now need to use UserNotifications Framework's UNNotificationRequest . Using UILocalNotification i was able to set fire date as well as repeat interval as below: UILocalNotification *localNotification = [[UILocalNotification alloc] init]; NSDate *tomorrow = [NSDate dateWithTimeInterval:(24*60*60) sinceDate:[NSDate date]]; localNotification.fireDate = tomorrow; if

问题 Previously I am using UILocalNotification for reminder purpose in my application. But as above API is deprecated in iOS 10.0 now need to use UserNotifications Framework's UNNotificationRequest . Using UILocalNotification i was able to set fire date as well as repeat interval as below: UILocalNotification *localNotification = [[UILocalNotification alloc] init]; NSDate *tomorrow = [NSDate dateWithTimeInterval:(24*60*60) sinceDate:[NSDate date]]; localNotification.fireDate = tomorrow; if

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: NSDateFormatter and yyyy-MM-dd I have an NSDate variable in format yyyy-MM-dd that I want to convert to dd/MM/yyyy. How can I do it? NSDateFormatter *f = [[NSDateFormatter alloc] init]; [f setDateFormat:@"yyyy-MM-dd"]; NSDate *date = [f dateFromString:[[jugador objectAtIndex:0] valueForKey:@"FECHA_NAC"]]; Thanks 回答1: Using same NSDateformatter u can format date using setDateFormat and retreive date using

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: NSDateFormatter and yyyy-MM-dd I have an NSDate variable in format yyyy-MM-dd that I want to convert to dd/MM/yyyy. How can I do it? NSDateFormatter *f = [[NSDateFormatter alloc] init]; [f setDateFormat:@"yyyy-MM-dd"]; NSDate *date = [f dateFromString:[[jugador objectAtIndex:0] valueForKey:@"FECHA_NAC"]]; Thanks 回答1: Using same NSDateformatter u can format date using setDateFormat and retreive date using

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: NSDateFormatter and yyyy-MM-dd I have an NSDate variable in format yyyy-MM-dd that I want to convert to dd/MM/yyyy. How can I do it? NSDateFormatter *f = [[NSDateFormatter alloc] init]; [f setDateFormat:@"yyyy-MM-dd"]; NSDate *date = [f dateFromString:[[jugador objectAtIndex:0] valueForKey:@"FECHA_NAC"]]; Thanks 回答1: Using same NSDateformatter u can format date using setDateFormat and retreive date using

问题 Is it possible to create such a UIView fill with color, but in the middle is transparent? I'm thinking about to create 5 UIView s here. Just wondering is it possible to accomplish by using only ONE UIView 回答1: From Duncan C, I get to know where should I start, then I found CALayer with transparent hole in it. UIBezierPath *overlayPath = [UIBezierPath bezierPathWithRect:self.view.bounds]; UIBezierPath *transparentPath = [UIBezierPath bezierPathWithRect:CGRectMake(60, 120, 200, 200)];

问题 Is it possible to create such a UIView fill with color, but in the middle is transparent? I'm thinking about to create 5 UIView s here. Just wondering is it possible to accomplish by using only ONE UIView 回答1: From Duncan C, I get to know where should I start, then I found CALayer with transparent hole in it. UIBezierPath *overlayPath = [UIBezierPath bezierPathWithRect:self.view.bounds]; UIBezierPath *transparentPath = [UIBezierPath bezierPathWithRect:CGRectMake(60, 120, 200, 200)];

问题 Is it possible to create such a UIView fill with color, but in the middle is transparent? I'm thinking about to create 5 UIView s here. Just wondering is it possible to accomplish by using only ONE UIView 回答1: From Duncan C, I get to know where should I start, then I found CALayer with transparent hole in it. UIBezierPath *overlayPath = [UIBezierPath bezierPathWithRect:self.view.bounds]; UIBezierPath *transparentPath = [UIBezierPath bezierPathWithRect:CGRectMake(60, 120, 200, 200)];

问题 Is it possible to create such a UIView fill with color, but in the middle is transparent? I'm thinking about to create 5 UIView s here. Just wondering is it possible to accomplish by using only ONE UIView 回答1: From Duncan C, I get to know where should I start, then I found CALayer with transparent hole in it. UIBezierPath *overlayPath = [UIBezierPath bezierPathWithRect:self.view.bounds]; UIBezierPath *transparentPath = [UIBezierPath bezierPathWithRect:CGRectMake(60, 120, 200, 200)];

问题 Is it possible to create such a UIView fill with color, but in the middle is transparent? I'm thinking about to create 5 UIView s here. Just wondering is it possible to accomplish by using only ONE UIView 回答1: From Duncan C, I get to know where should I start, then I found CALayer with transparent hole in it. UIBezierPath *overlayPath = [UIBezierPath bezierPathWithRect:self.view.bounds]; UIBezierPath *transparentPath = [UIBezierPath bezierPathWithRect:CGRectMake(60, 120, 200, 200)];