IOS 从系统图库中获取图片并设置为头像

总会遇到一些应用要拍照设置图片之类的的总结一个方法备用以后会继续拓展到多图

@interface AddCustomerViewController : UIViewController<UIImagePickerControllerDelegate,UINavigationControllerDelegate>
{
    UIImage *chosenImage;//做显示在self.view 上的image
    NSString *tempImagePath;//图片路径
    UIButton *button_Photo;//点击从系统选图片
}
@end
//以上代理 和参数 都是必须有的

-(void)TakePhoto
{
    UIActionSheet *actionSheet =[[UIActionSheet alloc]initWithTitle:@"您想如何获取照片?" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"拍照", nil];
   [actionSheet showInView:self.view];
}
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    /*
    NSLog(@"%ld",(long)buttonIndex);//2--->取消
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    picker.allowsEditing = YES;
    if(buttonIndex==0)
    {//拍照
        picker.sourceType=UIImagePickerControllerSourceTypeCamera;
    }
    else if(buttonIndex==1)
    {//图库
        picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    }
    [self presentViewController:picker animated:YES completion:NULL];
     */
    NSLog(@"%ld",(long)buttonIndex);//2--->取消
   
    if(buttonIndex==0)
    {//拍照
        UIImagePickerController *picker = [[UIImagePickerController alloc] init];
        picker.delegate = self;
        picker.allowsEditing = YES;
        picker.sourceType=UIImagePickerControllerSourceTypeCamera;
        [self presentViewController:picker animated:YES completion:NULL];
    }
    
    
}

#pragma -mark UIImagePickerController delegate
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    chosenImage = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
    //删除缓存文件
    if ([[NSFileManager defaultManager] fileExistsAtPath:tempImagePath]) {
        NSLog(@"the image is exist");
        NSFileManager *defaultManager;
        
        defaultManager = [NSFileManager defaultManager];
        NSError *error = [[NSError alloc] init];
        [defaultManager removeItemAtPath:tempImagePath error:&error];
        
    }
    [UIImagePNGRepresentation(chosenImage) writeToFile:[ NSTemporaryDirectory() stringByAppendingPathComponent:@"temp_image.png"] atomically:YES];
    
    BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:tempImagePath];
    
    if (fileExists) {
        NSLog(@"success");
        customer_Inform.image_Head=chosenImage;
        [button_Photo setImage:chosenImage forState:UIControlStateNormal];
        
    }
    [picker dismissViewControllerAnimated:YES completion:NULL];
    
    if (fileExists) {
        NSLog(@"success");
        [SGInfoAlert showInfo:@" 照片添加成功! "
                      bgColor:[[UIColor darkGrayColor] CGColor]
                       inView:self.view
                     vertical:0.5];
    }
    else
    {
        [SGInfoAlert showInfo:@" 照片添加不成功! "
                      bgColor:[[UIColor darkGrayColor] CGColor]
                       inView:self.view
                     vertical:0.5];
    }
//    //也能用
//    [button_Photo setImage:[info objectForKey:@"UIImagePickerControllerOriginalImage"] forState:UIControlStateNormal];
//    [picker dismissViewControllerAnimated:YES completion:NULL];
}

IOS 从系统图库中获取 图片 并设置为头像

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IOS 从系统图库中获取图片并设置为头像