iOS 相机工具类

来源：互联网发布：mac safari缓存文件编辑：程序博客网时间：2024/06/05 17:51

最近优化一些项目，然后就简单的把调用系统相机封装了一下。

1 首先需要申请权限

2 跳转到UIImagePickerController的代码

+(ImagePickerManager *)shareManager{    static ImagePickerManager *instance = nil;        static dispatch_once_t onceToken;    dispatch_once(&onceToken, ^{        instance = [[ImagePickerManager alloc] init];    });        return instance;}-(void)showImagePickFromAllowsEditing:(BOOL)allowsEditing videoQuality:(UIImagePickerControllerQualityType)videoQuality sourceType:(UIImagePickerControllerSourceType)sourceType modalPresentationStyle:(UIModalPresentationStyle)modalPresentationStyle controller:(UIViewController *)vc completion:(completionBlock)completion{    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {        UIImagePickerController *picker = [[UIImagePickerController alloc] init];        picker.delegate = self;        //可以编辑        picker.allowsEditing = allowsEditing;        //设置图片质量        picker.videoQuality=videoQuality;        picker.sourceType = sourceType;        picker.modalPresentationStyle = modalPresentationStyle;        _vc = vc;        _comBlock = [completion copy];        [_vc presentViewController:picker animated:YES completion:^{                    }];    }else{        if (_comBlock) {            _comBlock(@"不支持拍照",nil);        }    }}

3 取消

-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{    [_vc dismissViewControllerAnimated:YES completion:^{    }];}

4 确定图片之后的回调

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{    //设置为常规的图片    UIImage *img = [info objectForKey:UIImagePickerControllerOriginalImage];    //主线程等待0.5秒回到根视图    dispatch_after(dispatch_time(DISPATCH_TIME_NOW,                                 (int64_t)(0.51 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{        if (![_vc.presentedViewController isBeingDismissed]) {            [_vc dismissViewControllerAnimated:YES completion:^{                            }];        }    });    if (_comBlock) {        _comBlock(nil,img);    }}

5 使用

    [[ImagePickerManager shareManager] showImagePickFromAllowsEditing:YES videoQuality:UIImagePickerControllerQualityTypeLow sourceType:UIImagePickerControllerSourceTypeCamera modalPresentationStyle:UIModalPresentationOverCurrentContext controller:self completion:^(NSString *msg, UIImage *img) {        if (msg) {            NSLog(@"%@",msg);        }        if (img) {            [self showImage:img];        }    }];

Demo http://download.csdn.net/detail/rpf2014/9704191

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