每天学习一点点，进步一点点
1、自定义NSLog
#ifdef DEBUG
#define NSLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__)
#else
#define NSLog(...)
#endif
2、Font
#define FontL(s) [UIFont systemFontOfSize:s weight:UIFontWeightLight]
#define FontR(s) [UIFont systemFontOfSize:s weight:UIFontWeightRegular]
#define FontB(s) [UIFont systemFontOfSize:s weight:UIFontWeightBold]
#define FontT(s) [UIFont systemFontOfSize:s weight:UIFontWeightThin]
#define Font(s) FontL(s)
3、FORMAT
#define FORMAT(f, ...) [NSString stringWithFormat:f, ## __VA_ARGS__]
4、在主线程上运行
#define kDISPATCH_MAIN_THREAD(mainQueueBlock) dispatch_async(dispatch_get_main_queue(), mainQueueBlock);
5、开启异步线程
#define kDISPATCH_GLOBAL_QUEUE_DEFAULT(globalQueueBlock) dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), globalQueueBlocl);
6、通知
#define NOTIF_ADD(n, f) [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(f) name:n object:nil]#define NOTIF_POST(n, o) [[NSNotificationCenter defaultCenter] postNotificationName:n object:o]#define NOTIF_REMV() [[NSNotificationCenter defaultCenter] removeObserver:self]
7、随机颜色
+ (UIColor *)RandomColor {
NSInteger aRedValue = arc4random() % 255;
NSInteger aGreenValue = arc4random() % 255;
NSInteger aBlueValue = arc4random() % 255;
UIColor *randColor = [UIColor colorWithRed:aRedValue / 255.0f green:aGreenValue / 255.0f blue:aBlueValue / 255.0f alpha:1.0f];
return randColor;
}
8、获取window
+(UIWindow*)getWindow {UIWindow* win =nil;
//[UIApplication sharedApplication].keyWindow;
for(iditemin[UIApplicationsharedApplication].windows) {if([itemclass] == [UIWindowclass])
{
If
(!((UIWindow*)item).hidden)
{
win = item;
break;
}
}
}
return win;
}
9、修改textField的placeholder的字体颜色、大小
[textField setValue:[UIColor redColor]forKeyPath:@"_placeholderLabel.textColor"];
[textField setValue:[UIFont boldSystemFontOfSize:16]forKeyPath:@"_placeholderLabel.font"];
10、统一收起键盘
[[[UIApplication sharedApplication] keyWindow] endEditing:YES];