added files via upload

Tweaks/FLEX/Utility/Categories/UITextField+Range.m

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+//
+//  UITextField+Range.m
+//  FLEX
+//
+//  Created by Tanner on 6/13/17.
+//
+
+#import "UITextField+Range.h"
+
+@implementation UITextField (Range)
+
+- (NSRange)flex_selectedRange {
+    UITextRange *r = self.selectedTextRange;
+    if (r) {
+        NSInteger loc = [self offsetFromPosition:self.beginningOfDocument toPosition:r.start];
+        NSInteger len = [self offsetFromPosition:r.start toPosition:r.end];
+        return NSMakeRange(loc, len);
+    }
+
+    return NSMakeRange(NSNotFound, 0);
+}
+
+@end