［一句秒懂］iOS调用相机和相册－细节化

#pragma mark - 调用相机 && 拍照

- (void)chooseImagePicker {

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:nil message:@"选择照片来源" preferredStyle:UIAlertControllerStyleActionSheet];

UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
self.imagePickerController = imagePickerController;
imagePickerController.delegate = self;
imagePickerController.allowsEditing = YES;

UIAlertAction *albumAction = [UIAlertAction actionWithTitle:@"从相册选取" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction *action) {
[self chooseAlbum];
}];

UIAlertAction *photoAction = [UIAlertAction actionWithTitle:@"拍照" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction *action) {
[self takePhoto];
}];

UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:(UIAlertActionStyleCancel) handler:^(UIAlertAction *action){}];

// 弹出UIAlertAction窗口
[self presentViewController:alertController animated:YES completion:nil];

//用来判断来源 Xcode中的模拟器是没有拍摄功能的,当用模拟器的时候我们不需要把拍照功能加速
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {

[alertController addAction:albumAction];
[alertController addAction:photoAction];
[alertController addAction:cancelAction];
}else {

[alertController addAction:albumAction];
[alertController addAction:cancelAction];
}
}

#pragma mark - UIImagePickerControllerDelegate代理

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info {
[picker dismissViewControllerAnimated:YES completion:^{}];
//选取裁剪后的图片
UIImage *image = [info objectForKey:UIImagePickerControllerEditedImage];

// 上传图片
[self upLoadImage:image];
}

#pragma mark - 取消选择照片

-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
YLLog(@"取消");
[picker dismissViewControllerAnimated:YES completion:^{}];
}

#pragma mark - 上传图像

- (void)upLoadImage:(UIImage *)image {
[self hudShowLoad];

YLUploadParam *uploadParam = [YLUploadParam new];
uploadParam.data  = UIImageJPEGRepresentation(image, 1);
uploadParam.name = @"file";
uploadParam.fileName = @"avatar.png";
uploadParam.mimeType = @"image/png";

NSMutableDictionary *parameters = [NSMutableDictionary dictionary];
parameters[@"method"] = @"user.setavatar";
parameters[@"userid"] = self.uid;

[YLHttpTool Upload:kApisetAvatar parameters:parameters uploadParam:uploadParam progress:^(id progress) {
} success:^(id responseObject) {
[self hudHide];
if ([responseObject[@"status"] integerValue] == kHttpOk) {
[self hudShowSuccess:@"上传成功"];
YLLog(@"----%@",responseObject[@"data"]);
self.model.avatar = responseObject[@"data"];
NSIndexPath*index=[NSIndexPath indexPathForRow:0 inSection:0];
[self.tableView reloadRowsAtIndexPaths:[NSArray arrayWithObjects:index,nil] withRowAnimation:UITableViewRowAnimationNone];
}else {
[self hudCustom:responseObject[@"msg"] withIcon:nil];
}
} failure:^(NSError *error) {
[self hudHide];
} getFailure:^(NSString *error) {
[self hudHide];
}];

}

/**
*  选择照片
*/

- (void)chooseAlbum {

PHAuthorizationStatus albumStatus = [PHPhotoLibrary authorizationStatus];
if (albumStatus == PHAuthorizationStatusDenied || albumStatus == PHAuthorizationStatusRestricted) { //用户限制和拒绝了(无权限)
//[[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
NSString *message = @"请求访问您的相册,请到设置->隐私->相册 -> 进行相应的授权";
[self addAlertController:message];
}else { // 有权限
_imagePickerController.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
[self presentViewController:_imagePickerController animated:YES completion:^{}];
}

}

/**
*  拍照
*/
- (void)takePhoto {
AVAuthorizationStatus videoStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
if (videoStatus == AVAuthorizationStatusRestricted || videoStatus == AVAuthorizationStatusDenied) { // 未授权
NSString *message = @"请求访问您的相机,请到设置->隐私->相机 -> 进行相应的授权";
[self addAlertController:message];
}else {  //授权了
_imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:_imagePickerController animated:YES completion:^{
}];
}
}

/**
*  权限提示框
*/
- (void)addAlertController:(NSString *)message {
UIAlertController *alertC = [UIAlertController alertControllerWithTitle:@"提示" message:message preferredStyle:UIAlertControllerStyleAlert];
[alertC addAction:[UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {}]];
[self presentViewController:alertC animated:YES completion:nil];
}