namanhams

extension UITextField {
    func setTextLeftPadding(left:CGFloat) {
        var leftView:UIView = UIView(frame: CGRectMake(0, 0, left, 1))
        leftView.backgroundColor = UIColor.clearColor()
        self.leftView = leftView;
        self.leftViewMode = UITextFieldViewMode.Always;
    }
}

namanhams

typedef void (^fg_PFArrayResultBlock)(NSArray *PF_NULLABLE_S objects, NSError *PF_NULLABLE_S error, BOOL isCache, BOOL done);

@interface PFQuery (IsCache)
- (void)fg_findObjectsInBackgroundWithBlock:(PF_NULLABLE fg_PFArrayResultBlock)block
						  willLoadFromCache:(void (^ __nullable)())willLoadFromCache
						willLoadFromNetwork:(void  (^ __nullable)())willLoadFromNetwork;
@end


@implementation PFQuery (IsCache)

namanhams

+ (AnyPromise *) retry:(int)count delay:(NSTimeInterval)delay block:(AnyPromise *(^)(void))block {
    AnyPromise* (^attemp)(void) = ^AnyPromise*() {
        return block().catch(^(NSError *error) {
            if(count <= 1) {
                @throw error;
            }
            return PMKAfter(delay).then(^{
                return [AnyPromise retry:count-1 delay:delay block:block];
 });