模仿qq选择头像的控件封装 使用方法:1.遵守三个协议<UIImagePickerControllerDelegate,UINavigationControllerDelegate,TZImagePickerControllerDelegate> 2.在点击头像的方法内部直接复制粘贴改方法: [WQAlert showAlertViewControllerWithTitle:nil message:nil buttonTitles:@[@"拍照",@"从相册选择",@"取消"] showViewController:self completionBlock:^(int index) { switch (index) { case 0: { UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypeCamera; if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) { if ([self checkCameraAuthorization]) { UIImagePickerController* picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = sourceType; if([[[UIDevice currentDevice] systemVersion] floatValue]>=8.0) { self.modalPresentationStyle=UIModalPresentationOverCurrentContext; } [self presentViewController:picker animated:YES completion:^{ }]; } } } break; case 1: { TZImagePickerController* imagePicker = [[TZImagePickerController alloc] initWithMaxImagesCount:1 delegate:self]; [self presentViewController:imagePicker animated:YES completion:^{
}];
}
break;
default:
break;
}
} cancleBlock:^{
}preferredStyle:UIAlertControllerStyleActionSheet ];
3.实现协议方法也是直接复制粘贴
- (void)imagePickerController:(TZImagePickerController *)picker didFinishPickingPhotos:(NSArray<UIImage *> *)photos sourceAssets:(NSArray *)assets isSelectOriginalPhoto:(BOOL)isSelectOriginalPhoto infos:(NSArray<NSDictionary *> *)infos {
TailoringViewController* tailoringVC = [[TailoringViewController alloc] init];
tailoringVC.sourceImage = photos.firstObject;
tailoringVC.picker = picker;
tailoringVC.myBlockImage = ^ (UIImage* image){
self.headerImageView.image = image;
};
[picker pushViewController:tailoringVC animated:YES];
}
-
(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString ,id> )info { TailoringViewController tailoringVC = [[TailoringViewController alloc] init]; tailoringVC.sourceImage = info[UIImagePickerControllerOriginalImage]; tailoringVC.picker = picker; tailoringVC.myBlockImage = ^ (UIImage image){ self.headerImageView.image = image; }; [picker pushViewController:tailoringVC animated:YES]; } 4.在第二个步骤中我会检测摄像头的权限,所以必须引入#import <AVFoundation/AVFoundation.h>头文件,而且要声明一个isIOS7的宏定义#define isIOS7 ([[UIDevice currentDevice].systemVersion doubleValue] >= 7.0)如果你已经声明过了可以直接将报错位置替换 检测代码如下:
-
(BOOL)checkCameraAuthorization { BOOL isAvalible = YES; //ios 7.0以上的系统新增加摄像头权限检测 if (isIOS7) { //获取对摄像头的访问权限。 AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo]; switch (authStatus) { case AVAuthorizationStatusRestricted: break; case AVAuthorizationStatusDenied: isAvalible = NO; break; case AVAuthorizationStatusAuthorized: break; case AVAuthorizationStatusNotDetermined: isAvalible =[UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]; break; default: break; } } if (!isAvalible) { NSDictionary* infoDict =[[NSBundle mainBundle] infoDictionary]; NSString *appName =[infoDict objectForKey:@"CFBundleDisplayName"]; [WQAlert showAlertViewControllerWithTitle:@"" message:[NSString stringWithFormat:@"您关闭了%@的相机权限，无法进行拍照。可以在手机 > 设置 > 隐私 > 相机中开启权限。", appName] buttonTitles:@[@"确定"] showViewController:self completionBlock:^(int index) { [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
} cancleBlock:^{ } preferredStyle:UIAlertControllerStyleAlert];} return isAvalible; } 实现这些内容后就可以更换头像了,但是你的imageview必须进行替换,直接搜索headerImageView,然后替换成你的imageview名称就一切ok了.