//
//  UIImage+ShotImage.m
//  GIGA
//
//  Created by lianxiang on 2018/9/25.
//  Copyright © 2018年 com.giga.ios. All rights reserved.
//

#import "UIImage+ShotImage.h"

@implementation UIImage (ShotImage)

+(UIImage *)saveLongImage:(UITableView *)table {
    
    UIImage* image = nil;
    // 下面方法，第一个参数表示区域大小。第二个参数表示是否是非透明的。如果需要显示半透明效果，需要传NO，否则传YES。第三个参数就是屏幕密度了，调整清晰度。
    UIGraphicsBeginImageContextWithOptions(CGSizeMake(table.contentSize.width,table.contentSize.height), YES, [UIScreen mainScreen].scale);
    
    CGPoint savedContentOffset = table.contentOffset;
    CGRect savedFrame = table.frame;
    table.contentOffset = CGPointZero;
    table.frame = CGRectMake(0, 0, table.contentSize.width, table.contentSize.height +100);
    [table.layer renderInContext: UIGraphicsGetCurrentContext()];
    image = UIGraphicsGetImageFromCurrentImageContext();
    table.contentOffset = savedContentOffset;
    table.frame = savedFrame;
    UIGraphicsEndImageContext();
    
    return image;
    
}

+(UIImage *)saveNavsuitImage:(UITableView *)table {
    
    UIImage* image = nil;
    // 下面方法，第一个参数表示区域大小。第二个参数表示是否是非透明的。如果需要显示半透明效果，需要传NO，否则传YES。第三个参数就是屏幕密度了，调整清晰度。
 UIGraphicsBeginImageContextWithOptions(CGSizeMake(table.contentSize.width,table.contentSize.height+30), YES, [UIScreen mainScreen].scale);
    
    CGPoint savedContentOffset = table.contentOffset;
    CGRect savedFrame = table.frame;
    table.contentOffset = CGPointZero;
    table.frame = CGRectMake(0, 0, table.contentSize.width, table.contentSize.height +30);
    
    [table.layer renderInContext: UIGraphicsGetCurrentContext()];
    image = UIGraphicsGetImageFromCurrentImageContext();
    table.contentOffset = savedContentOffset;
    table.frame = savedFrame;
    UIGraphicsEndImageContext();
    
    return image;
    
}

@end