如何自动采取无pressing上imagepickercontroller的phototaken按钮的图片？ [英] How to automatically take a picture without pressing the phototaken button on the imagepickercontroller?

问题描述

在我的项目，我需要自动拍照每隔一分钟。但是，我找不到任何解决方案。

这是code这是我实现的，但它不工作...

我用的NSTimer调出摄像头拍照每4秒。而我只需要takepic

  //这个方法是所有的时间设置。你可以将其忽略。 - （*的NSDate）USERINFO {NSDateFormatter * dateFormatter = [[NSDateFormatter的alloc]初始化];[dateFormatter setDateFormat：@YYYY-MM-DD'为'HH：MM：SS];* NSDate的日期= [[[NSDate的页头] INIT]自动释放];* NSString的formattedDateString = [dateFormatter stringFromDate：日期];的NSLog（@formattedDateString：％@，formattedDateString）;归期;
}
 - （无效）targetMethod：（*的NSTimer）theTimer {
   *的NSDate =的startDate [个体经营USERINFO]   //新更改的行。
   *的UIImagePickerController myPicker;
   [myPicker takePicture]
   的NSLog（@定时器开始在％@的startDate）;}
 - （IBAction为）showCameraUI {
   [的NSTimer scheduledTimerWithTimeInterval：4.0
                                 目标：自我
                               选择：@选择（targetMethod :)
                               用户信息：[个体经营USERINFO]
                                重复：YES];}
 

解决方案

最后我想出的解决方案。

我用

  AVCaptureVideoDataOutputSampleBufferDelegate
 

要自动拍照。

   - （无效）captureOutput：（AVCaptureOutput *）captureOutput didOutputSampleBuffer：（CMSampleBufferRef）sampleBuffer
   fromConnection：（AVCaptureConnection *）连接
 

这是pretty简单，谢谢@sch都一样对您有所帮助：）

In my project, I need to take pictures automatically every one minute. But I can't find out any solutions.

This is the code which I implemented but it doesn't work...

I used a NSTimer to call up the camera to take pictures every 4 sec. And I only need the takepic

//This method is all for the time setup. You can ignore it.

-(NSDate *)userInfo {

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];

[dateFormatter setDateFormat:@"yyyy-MM-dd 'at' HH:mm:ss"];

NSDate *date = [[[NSDate alloc]init]autorelease];

NSString *formattedDateString = [dateFormatter stringFromDate:date];

NSLog(@"formattedDateString: %@", formattedDateString);   

return date;    
}


- (void)targetMethod:(NSTimer *)theTimer {
   NSDate *startDate = [self userInfo];

   //newly changed lines.
   UIImagePickerController *myPicker;
   [myPicker takePicture];
   NSLog(@"Timer started on %@", startDate);

}


- (IBAction) showCameraUI {


   [NSTimer scheduledTimerWithTimeInterval:4.0
                                 target:self
                               selector: @selector(targetMethod:)
                               userInfo:[self userInfo]
                                repeats:YES];

}

解决方案

Finally I figured out the solution.

I use the

 AVCaptureVideoDataOutputSampleBufferDelegate

to take pictures automatically.

- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer   
   fromConnection:(AVCaptureConnection *)connection 

It is pretty simple and thank you @sch all the same for your help :)

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