iOS相机调用基本使用方法

iOS更新后,相机模块有路一次大的版本调整,最重要的就是添加了权限设置,关于权限设置这里,我们可以把plist文件用sourceCode方式打开,添加

NSCameraUsageDescription    cameraDesciptio

NSContactsUsageDescription    contactsDesciption

NSMicrophoneUsageDescription    microphoneDesciption

NSPhotoLibraryUsageDescription    此 App 需要您的同意才能读取媒体资料库

iOS相机调用基本使用方法_第1张图片
写完之后就是这样的

对的,这个时候我们环境就做好了,我们就可以进行下一步了,遵循协议方法

这是两个协议方法

以及全局变量

@property (nonatomic,strong) UIImagePickerController *pickerController;

接着是具体的实现方法了

- (void)touchUpSenderForBtn {

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"照片选择方式" message:@"" preferredStyle:UIAlertControllerStyleActionSheet];

UIAlertAction *actionOne = [UIAlertAction actionWithTitle:@"相机" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {

if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])

{

self.pickerController.sourceType = UIImagePickerControllerSourceTypeCamera;

[self presentViewController:self.pickerController animated:YES completion:nil];

}

else

{

NSLog(@"打开失败");

}

}];

[alertController addAction:actionOne];

UIAlertAction *actionTwo = [UIAlertAction actionWithTitle:@"相册" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {

if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum])

{

self.pickerController.sourceType=UIImagePickerControllerSourceTypeSavedPhotosAlbum;

self.pickerController.allowsEditing = YES;

//打开相册

[self presentViewController:self.pickerController animated:YES completion:nil];

}

}];

[alertController addAction:actionTwo];

UIAlertAction *actionThree = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {

}];

[alertController addAction:actionThree];

[self presentViewController:alertController animated:YES completion:nil];

}

#pragma  mark - ImagePickerController delegate

- (UIImagePickerController *)pickerController

{

if (!_pickerController)

{

_pickerController=[[UIImagePickerController alloc]init];

_pickerController.delegate=self;

}

return _pickerController;

}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {

[self dismissViewControllerAnimated:YES completion:nil];

}

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary*)info

{

//如果实现了这个代理方法 必须手动退出相册界面

[self dismissViewControllerAnimated:YES completion:nil];

UIImage *selectImage = info[@"UIImagePickerControllerEditedImage"];

if (_isLeft) {//这里的selectImage就是我们选择的图片了 我们只需要赋值就好了

_leftBtn.image = selectImage;

}else {

_rightBtn.image = selectImage;

}

}

这里最基本的步骤就已经写完了,新人第一次发帖子,求评论,在现在这个iOS开发多如狗的年代,我只能不断进步,多写一点东西,来鼓励自己。同样你们也可以鼓励我的说,这些也是我在网上找了好久才找到的,不容易。

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