40 lines
1.1 KiB
Objective-C
40 lines
1.1 KiB
Objective-C
//
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// UIImage+ShotImage.m
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// GIGA
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//
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// Created by lianxiang on 2018/9/25.
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// Copyright © 2018年 com.giga.ios. All rights reserved.
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//
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#import "UIImage+ShotImage.h"
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@implementation UIImage (ShotImage)
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+(UIImage *)saveLongImage:(UITableView *)table {
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UIImage* image = nil;
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// 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。
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UIGraphicsBeginImageContextWithOptions(table.contentSize, YES, [UIScreen mainScreen].scale);
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CGPoint savedContentOffset = table.contentOffset;
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CGRect savedFrame = table.frame;
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table.contentOffset = CGPointZero;
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table.frame = CGRectMake(0, 0, table.contentSize.width, table.contentSize.height);
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[table.layer renderInContext: UIGraphicsGetCurrentContext()];
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image = UIGraphicsGetImageFromCurrentImageContext();
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table.contentOffset = savedContentOffset;
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table.frame = savedFrame;
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UIGraphicsEndImageContext();
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return image;
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}
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@end
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