jixin_new/shiku_im/util/UIImage+Tint.m

//
//  UIImage+Tint.m
//  shiku_im
//
//  Created by 1 on 17/3/6.
//  Copyright © 2017年 Reese. All rights reserved.
//

#import "UIImage+Tint.h"

@implementation UIImage (Tint)


-(UIImage *)imageWithTintColor:(UIColor *)tintColor{
    return [self imageWithTintColor:tintColor blendMode:kCGBlendModeDestinationIn];
}

-(UIImage *)imageWithGradientTintColor:(UIColor *)tintColor{
    return [self imageWithTintColor:tintColor blendMode:kCGBlendModeOverlay];
}

-(UIImage *)imageWithTintColor:(UIColor *)tintColor blendMode:(CGBlendMode)blendMode{
    
    //We want to keep alpha, set opaque to NO; Use 0.0f for scale to use the scale factor of the device’s main screen.
    UIGraphicsBeginImageContextWithOptions(self.size, NO, 0.0f);
    [tintColor setFill];
    CGRect bounds = CGRectMake(0, 0, self.size.width, self.size.height);
    UIRectFill(bounds);
    
    //Draw the tinted image in context
    [self drawInRect:bounds blendMode:blendMode alpha:1.0f];
    
    if (blendMode != kCGBlendModeDestinationIn) {
        [self drawInRect:bounds blendMode:kCGBlendModeDestinationIn alpha:1.0f];
    }
    
    UIImage *tintedImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    return tintedImage;
    
}


// 控件绘制成图片
+ (UIImage *)imageWithView:(UIView *)view {
    
    
    //转化成image
//    UIGraphicsBeginImageContext(view.bounds.size);
    UIGraphicsBeginImageContextWithOptions(view.bounds.size, YES,[UIScreen mainScreen].scale);
    CGContextRef ctx = UIGraphicsGetCurrentContext();
    [view.layer renderInContext:ctx];
    UIImage* tImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return tImage;
}

@end