vpdn

/**

Simple category to adjust a view's frame in a contained scope.
No more need for littered local variable names.

Usage
-----
[view adjustFrame:^(CGRect *frame) {
    frame->origin.x = 42.0;
}];

vpdn

static __weak id currentFirstResponder;

@implementation UIResponder (FirstResponder)

+(id)currentFirstResponder {
    currentFirstResponder = nil;
    [[UIApplication sharedApplication] sendAction:@selector(findFirstResponder:) to:nil from:nil forEvent:nil];
    return currentFirstResponder;
}