Screen flickering and corrupted when magnifying glass appears.

Hello,

Nice library.

I got a problem when I use this library, there seems to be a screen rendering bug when I try to change the text cursor/caret position while editing text in a UITextView.

To reproduce the bug:

1) Download the iOS-Slide-Menu project 2) Open FriendsViewController.h and add this code:

#import <UIKit/UIKit.h>
#import "SlideNavigationController.h"

@interface FriendsViewController : UITableViewController <SlideNavigationControllerDelegate>

@property (nonatomic, strong) UITextView *textView;

@end

3) Open FriendsViewController.m and add this code:

 - (void)viewDidLoad
{
[super viewDidLoad];

    self.textView = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, 320, 50)];
    self.textView.layer.borderWidth = 1.0;
    self.textView.layer.borderColor = [UIColor redColor].CGColor;

    [self.view addSubview:self.textView];
}

4) Run the app, go to the Friends list screen, you should see a red UITextView input box.

5) Long press on the text view to bring up the magnifying glass and start dragging the magnifying glass around. Everywhere the magnifying glass hovers over, it causes the text to view behind to be clipped/disappear/corrupt/bugged out.

As you can see in the above screenshot I've taken, the search field completely disappears, the hamburger menu icon and the first few rows of text gets clipped.

I'm digging through the code and hopefully can find a fix but I thought I'd post this bug here in case you guys know what's causing it :D

aryaxt / iOS-Slide-Menu

Screen flickering and corrupted when magnifying glass appears. #153