edwardean

NSString *imageName = nil;
CGSize screenSize = [[UIScreen mainScreen] bounds].size;
NSString *orientation = @"Portrait";//Landscape
NSDictionary *bundleInfoDict = [[NSBundle mainBundle] infoDictionary];
NSArray *imagesDict = [bundleInfoDict valueForKey:@"UILaunchImages"];
for (NSDictionary *dic in imagesDict) {
    CGSize imageSize = CGSizeFromString(dic[@"UILaunchImageSize"]);
      if (CGSizeEqualToSize(imageSize, screenSize) &&
          [orientation isEqualToString:dic[@"UILaunchImageOrientation"]]) {
          imageName = dic[@"UILaunchImageName"];

edwardean

#define SafeBlock(BlockName, ...) BlockName ? BlockName(__VA_ARGS__) : nil

edwardean

#if __has_feature(nullability)
#   define __ASSUME_NONNULL_BEGIN      NS_ASSUME_NONNULL_BEGIN
#   define __ASSUME_NONNULL_END        NS_ASSUME_NONNULL_END
#   define __NULLABLE                  __nullable
#else
#   define __ASSUME_NONNULL_BEGIN
#   define __ASSUME_NONNULL_END
#   define __NULLABLE
#endif

edwardean

针对Xcode能自动探知重名的category方法的问题，暂时找到了一个办法。
在工程的环境变量中加上OBJC_PRINT_REPLACED_METHODS并且值为YES，那么Xcode会自动log出重名的category方法

edwardean

[UIView transitionWithView:_animatedLabel 
                  duration:0.5 
                   options:UIViewAnimationOptionTransitionCrossDissolve 
                animations:^{ 
                 _animatedLabel.textColor = colorChanged?[UIColor greenColor]:[UIColor blackColor];
              } completion:^(BOOL finished) { 
              }];

edwardean

You want to use %zd for signed, %tu for unsigned, and %tx for hex.
NSInteger integer = 1;NSLog(@"first number: %zd", integer); 
NSUInteger uinteger = 1;NSLog(@"second number: %tu", uinteger);

edwardean

if ([self respondsToSelector:@selector(setSeparatorInset:)]) {
        self.separatorInset = UIEdgeInsetsZero;
    }
if ([self respondsToSelector:@selector(setPreservesSuperviewLayoutMargins:)]) {
        self.preservesSuperviewLayoutMargins = NO;
    }
if ([self respondsToSelector:@selector(setLayoutMargins:)]) {
        self.layoutMargins = UIEdgeInsetsZero;
    }

edwardean

Mac OS:
[someNSView setSubviews:[NSArray array]];

For UIView (iOS development only), you can safely use makeObjectsPerformSelector:
because the subviews property will return a copy of the array of subviews:
iOS:
[[someUIView subviews]
makeObjectsPerformSelector:@selector(removeFromSuperview)];

edwardean

$ class-dump -C Pods_ /Applications/Squire.app | grep -o "Pods_\w+"

edwardean

echo "Current Build Configuration : ${CONFIGURATION}"
if [ "Release" != "${CONFIGURATION}" ]; then

PATH=${PATH}:/usr/local/bin

IFS=$'\n'
buildNumber=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" "${PROJECT_DIR}/${INFOPLIST_FILE}")

versionNumber=$(/usr/libexec/PlistBuddy -c "Print CFBundleShortVersionString" "${PROJECT_DIR}/${INFOPLIST_FILE}")