ios - 渲染一个 UIView，其中的某些东西被动画化并从中导出视频

Question

如何像录制手机屏幕的一部分一样从 UIView 录制一段视频？

Answer 1

使用Glimpse

Glimpse 允许您从 UIView 创建视频。此处提供了更多文档，但基本上它通过拍摄一系列 UIView 的屏幕截图，然后创建 quicktime 视频并将其保存到应用程序的文档文件夹中，来记录动画和 Action 。

这是一个示例用法:

#import <Glimpse/Glimpse.h>

@implementation myViewController
- (void)viewDidAppear
{
        [super viewDidAppear:animated];

        // Create a new Glimpse object.
        Glimpse *glimpse = [[Glimpse alloc] init];

        // Start recording and tell Glimpse what to do when you are finished
        [glimpse startRecordingView:self.view onCompletion:^(NSURL *fileOuputURL) {
            NSLog(@"DONE WITH OUTPUT: %@", fileOuputURL.absoluteString);
        }];

        // Create a subview for this example
        UIView *view = [[UIView alloc] initWithFrame:CGRectInset(self.view.bounds, 40.0f 40.0f)];
        view.backgroundColor = [UIColor greenColor];
        view.alpha = 0.0f;

        [self.view addSubview:view];

        // We are going to record the view fading in.
        [UIView animateWithDuration:5.0 animations:^{
            view.alpha = 1.0f;
        } completion:^(BOOL finished) {
            // Since our animation is complete, lets tell Glimpse to stop recording.
            [glimpse stop];
        }];
 }
@end