• The problem

    Leaders arrange tasks, write a photo function, the interface with the system photo a little different

    After taking a photo, the bottom shows that the photo was taken, and there is a photo upper limit.

    Click on the photo taken, you can preview, zoom in and out to view

  • Train of thought

    System photo definitely not working, can only be customized, did not mention whether to take photos prohibited sound requirements [not candid, serious person]

    In principle, simple is not complex, take AVCapturePhotoOutput brick

  • Smooth your

    First of all, you need a layer for the current scene, which is not mentioned here.

    Second, define session + photoOutput

    Again, define the photo event

    Finally, the agent gets the photo

  • serving

    • Session defines input Settings
    self.session = [[AVCaptureSession alloc] init];
self.session.sessionPreset = AVCaptureSessionPresetPhoto;
AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
self.dInput = [AVCaptureDeviceInput deviceInputWithDevice:device error:nil];
if ([self.session canAddInput:self.dInput]) {
    [self.session addInput:self.dInput];
}
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    • Photo scene layer
    self.preView = [[AVPreView alloc] init];
self.preView.backgroundColor = [UIColor colorWithHexs:0x3f3f3f];
self.preView.session = self.session;
[self.preView setVideoOrientation:AVCaptureVideoOrientationLandscapeRight];
[self.view addSubview:self.preView];
[self.preView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.left.equalTo(self.view);
    make.top.equalTo(self.topView.mas_bottom);
    make.bottom.equalTo(self.collect.mas_top);
    make.right.equalTo(rightView.mas_left);
}];
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    • Set the photoOutput
    self.photoOutput = [[AVCapturePhotoOutput alloc] init];
if ([self.session canAddOutput:self.photoOutput]) {
    [self.session addOutput:self.photoOutput];
}
[self.photoOutput.connections.lastObject setVideoOrientation:AVCaptureVideoOrientationLandscapeRight];
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    • session start
    [self.session startRunning];
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    • Photo click
    AVCapturePhotoSettings *set = [AVCapturePhotoSettings photoSettings];
[self.photoOutput capturePhotoWithSettings:set delegate:self];
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    • AVCapturePhotoCaptureDelegate
    #pragma mark - AVCapturePhotoCaptureDelegate -(void)captureOutput:(AVCapturePhotoOutput *)output DidFinishProcessingPhoto photo: (AVCapturePhoto *) error: (NSError *) error API_AVAILABLE (ios (11.0)) {if (! NSData *data = [photo fileDataRepresentation]; NSData *data = [photo fileDataRepresentation]; UIImage *image = [UIImage imageWithData:data]; // Image}}Copy the code

  • Game Over.

    See me Tomorrow, haha