最近不忙，有小伙伴儿让帮忙写个手动（按音量键）自动拍照 并上传照片，想着自己没有这方面的需求 就当学知识了
一、如图：创建相机属性
设定了拍照成功之后的代理方法（因为上传和拍照是分开的）拍照的张数 时间 以及拍照模式等属性
二、创建拍照环境
//搭建设备环境
self.device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
self.input = [AVCaptureDeviceInput deviceInputWithDevice:self.device error:nil];
self.captureOutput = [[AVCaptureStillImageOutput alloc] init];
// ZLCameraView 初始化相机视图
ZLCameraView * caramView = [[ZLCameraView alloc] initWithFrame:CGRectMake(0, 40, viewWidth, viewHeight)];
caramView.backgroundColor = [UIColor clearColor];
caramView.delegate = self;
[self.view addSubview:caramView];
三、创建计时自动拍照 和手动按音量键监听（在使用此方法时候要注意：1、调用时候判断拍照模式；2、中途取消要关闭线程）
/**
* 添加计时线程
*/
- (void)manageCountDown:(int)count{
timeOut = count;
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
_countTimer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0,queue);
dispatch_source_set_timer(_countTimer,dispatch_walltime(NULL, 0),1.0*NSEC_PER_SEC, 0);
dispatch_source_set_event_handler(_countTimer, ^{
if(timeOut <= 0) {
dispatch_source_cancel(_countTimer);
dispatch_async(dispatch_get_main_queue(), ^{
//[self takePhotosCancel];
});
}else {
timeOut--;
dispatch_async(dispatch_get_main_queue(), ^{
int X = count - timeOut;
int F = X % self.everyTime;
if (F == 0) {
NSLog(@"拍照 ");
[self stillImageMotherd:nil];
}
});
}
});
dispatch_resume(_countTimer);
}
#pragma mark 监听点击音量建 注册
-(void)initAudioSession{
NSError * error;
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
[[AVAudioSession sharedInstance] setActive:YES error:&error];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(volumeChanged:) name:@"AVSystemController_SystemVolumeDidChangeNotification" object:nil];
}
#pragma mark 监听点击音量建
- (void)volumeChanged:(NSNotification *)notification
{
NSLog(@"点击了音量键");
[self stillImageMotherd:nil];
}
四、最关键的 调用拍照方法，并获取拍照之后的image 把他座位代理方法的参数传回去上级页面（进行上传之类的操作）
#pragma mark 拍照出zhaopiande方法
-(void)Captureimage
{
AVCaptureConnection * videoConnection = nil;
for (AVCaptureConnection *connection in self.captureOutput.connections) {
for (AVCaptureInputPort *port in [connection inputPorts]) {
if ([[port mediaType] isEqual:AVMediaTypeVideo] ) {
videoConnection = connection;
break;
}
}
if (videoConnection) {
break;
}
}
__weak typeof(self) WeakSelf = self;
[self.captureOutput captureStillImageAsynchronouslyFromConnection:videoConnection completionHandler:
^(CMSampleBufferRef imageSampleBuffer, NSError *error) {
NSData *imageData = [AVCaptureStillImageOutput jpegStillImageNSDataRepresentation:imageSampleBuffer];
UIImage *t_image = [UIImage imageWithData:imageData];
t_image = [WeakSelf cutImage:t_image];
t_image = [WeakSelf fixOrientation:t_image];
NSLog(@"拍照结束：%@",t_image);
if (WeakSelf.cameraType == ZLCameraSingle) {
[WeakSelf.images removeAllObjects];
[WeakSelf.images addObject:t_image];
} else{
[WeakSelf.images addObject:t_image];
}
[WeakSelf.delegete takePhotos:WeakSelf.images];
if (WeakSelf.images.count == WeakSelf.count && !self.IsHandStyle) {
[WeakSelf dismissViewControllerAnimated:NO completion:nil];
}
[_Cameraview doneAction];
}];
}
五、最后获得了image 遵守协议上传给服务器（在第四步对图片进行了压缩处理）
//利用获得的图片和服务器URL上传（由于服务器没有优化完成，相关的加密没有添加，需要的话可以进行添加）
-(void)uploadPhotosWithImage:(UIImage *)image withUrl:(NSString *)url；
AFHTTPSessionManager * manager = [AFHTTPSessionManager manager]; manager.responseSerializer = [AFHTTPResponseSerializer serializer]; [manager.requestSerializer willChangeValueForKey:@"timeoutInterval"]; manager.requestSerializer.timeoutInterval = 10.f; [manager.requestSerializer didChangeValueForKey:@"timeoutInterval"]; [manager POST:url parameters:@{} constructingBodyWithBlock:^(id_Nonnull formData) {
} progress:^(NSProgress * _Nonnull uploadProgress) {
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject){
self.uploadLabel.text = @"上传成功";} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"上传失败 %@", error);}];
附件：Demo地址：https://github.com/JamesBondMine/Camera-Photos
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