//

// STTools.m

// STWebViewController

//

// Created by linxiaolong on 15/5/11.

// Copyright (c) 2015年 linxiaolong. All rights reserved.

//

#import "STTools.h"

@implementation STTools

#pragma -mark get screen shot

+ (UIImage *)getScreenshot {

CGSize imageSize = [[UIScreen mainScreen] bounds].size;

UIGraphicsBeginImageContextWithOptions(imageSize, NO, 0);

CGContextRef context = UIGraphicsGetCurrentContext();

for (UIWindow *window in [[UIApplication sharedApplication] windows]) {

if (![window respondsToSelector:@selector(screen)] || [window screen] == [UIScreen mainScreen]) {

CGContextSaveGState(context);

CGContextTranslateCTM(context, [window center].x, [window center].y);

CGContextConcatCTM(context, [window transform]);

CGContextTranslateCTM(context,

-[window bounds].size.width * [[window layer] anchorPoint].x,

-[window bounds].size.height * [[window layer] anchorPoint].y);

[[window layer] renderInContext:context];

CGContextRestoreGState(context);

}

}

UIImage *image = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return image;

}

@end