dhl613
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| /// 方法一：MPMoviePlayerController | |
| NSString *videoURL = @"http:// or /private(local video)" | |
| NSURL *URL = [NSURL URLWithString: videoURL]; | |
| // NSURL *URL = [NSURL fileURLWithPath:videoURL] | |
| MPMoviePlayerController *iosMPMovie = [[MPMoviePlayerController alloc]initWithContentURL:URL]; iosMPMovie.shouldAutoplay = NO; | |
| UIImage *thumbnail = [iosMPMovie thumbnailImageAtTime:time timeOption:MPMovieTimeOptionNearestKeyFrame]; | |
| /// 方法二：AVAssetImageGenerator | |
| + (UIImage *)getThumbnailImage:(NSString *)videoURL { |
dhl613
/ UIAlertController+HLTapDismiss.m
Created
January 16, 2019 08:20
UIAlertController添加点击空白dismiss手势
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| #import "UIAlertController+JHTapDismiss.h" | |
| @interface UIAlertController ()<UIGestureRecognizerDelegate> | |
| @end | |
| @implementation UIAlertController (JHTapDismiss) | |
| - (void)alertTapDismiss { | |
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| “Content Hugging Priority”，也叫内容紧靠优先级（小名：别扯我），该优先级越高，这越晚轮到被拉伸。 | |
| “Content Compression Resistance Priority”，也叫内容压缩阻力优先级（小名：别挤我），该优先级越高，则越晚轮到被压缩。 | |
| // ⤴️原文: https://www.jianshu.com/p/a4b8e0c8e68d | |
| // 紧靠能力 优先级越低 内容显示得越完整 反之，内容被省略 | |
| [self.nameLabel setContentHuggingPriority:UILayoutPriorityRequired forAxis:UILayoutConstraintAxisHorizontal]; | |
| [self.priceLabel setContentHuggingPriority:UILayoutPriorityDefaultLow forAxis:UILayoutConstraintAxisHorizontal]; |
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| /// 待分组数据 以年为单位分组 | |
| NSMutableArray *data = [NSMutableArray array]; | |
| for (int i = 2018; i > 2010; i--) { | |
| NSString *typeValue = [NSString stringWithFormat:@"%d年",i]; | |
| for (int j = 1; j < 5; j++) { | |
| NSString *other = [NSString stringWithFormat:@"月份: %d月",j+(arc4random() % 5)]; | |
| [data addObject:@{@"year":typeValue,@"month":other}]; | |
| } | |
| } |
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| - (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset { | |
| CGFloat y = scrollView.contentOffset.y; | |
| if (y < -65) { | |
| [self.collectionView.mj_header beginRefreshing]; | |
| // 消除刷新时functionView跳动的问题 动画时间不低于0.25s | |
| UIEdgeInsets inset = scrollView.contentInset; | |
| dispatch_async(dispatch_get_main_queue(), ^{ | |
| [UIView animateWithDuration:0.25 animations:^{ |
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| #### OC版 | |
| /// #import <CommonCrypto/CommonDigest.h> | |
| /// (Category) | |
| - (NSString *)md5 { | |
| const char *str = [self UTF8String]; | |
| if (str == NULL) { | |
| str = ""; | |
| } | |
| unsigned char r[CC_MD5_DIGEST_LENGTH]; |