iOS选照片

来源：互联网发布：vnc mac版远程控制软件编辑：程序博客网时间：2024/04/28 13:40

<UITextViewDelegate,UIActionSheetDelegate,UINavigationControllerDelegate,UIImagePickerControllerDelegate>
{
    //输入框
    UITextView *_textEditor;

    //下拉菜单
    UIActionSheet *myActionSheet;

    //图片2进制路径
    NSString* filePath;
}

/////////////

- (void)openMenu {
    //在这里呼出下方菜单按钮项
    myActionSheet = [[UIActionSheet alloc]initWithTitle:nil delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles: @"打开照相机", @"从手机相册获取",nil];

    [myActionSheet showInView:self.view];

}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {

    //呼出的菜单按钮点击后的响应
    if (buttonIndex == myActionSheet.cancelButtonIndex)
    {
        NSLog(@"取消");
    }

    switch (buttonIndex)
    {
        case 0: //打开照相机拍照
            [self takePhoto];
            break;

        case 1: //打开本地相册
            [self LocalPhoto];
            break;
    }
}

//开始拍照
-(void)takePhoto
{
    UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypeCamera;
    if ([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera])
    {
        UIImagePickerController *picker = [[UIImagePickerController alloc] init];
        picker.delegate = self;
        //设置拍照后的图片可被编辑
        picker.allowsEditing = YES;
//        picker.showsCameraControls = YES;
        picker.sourceType = sourceType;
        [self presentModalViewController:picker animated:YES];
    }else
    {
        NSLog(@"模拟其中无法打开照相机,请在真机中使用");
    }
}

//打开本地相册
-(void)LocalPhoto
{
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];

    picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    picker.delegate = self;
    //设置选择后的图片可被编辑
//    picker.showsCameraControls = YES;
    picker.allowsEditing = YES;

    [self presentModalViewController:picker animated:YES];
}

//当选择一张图片后进入这里
-(void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

{

    NSString *type = [info objectForKey:UIImagePickerControllerMediaType];

    //当选择的类型是图片
    if ([type isEqualToString:@"public.image"])
    {
        //先把图片转成NSData
//        UIImage* image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
         //获取图片裁剪的图
        UIImage* image = [info objectForKey:UIImagePickerControllerEditedImage];
        NSData *data;
        if (UIImagePNGRepresentation(image) == nil)
        {
            data = UIImageJPEGRepresentation(image, 1.0);
        }
        else
        {
            data = UIImagePNGRepresentation(image);
        }

        //图片保存的路径
        //这里将图片放在沙盒的documents文件夹中
        NSString * DocumentsPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];

        //文件管理器
        NSFileManager *fileManager = [NSFileManager defaultManager];

        //把刚刚图片转换的data对象拷贝至沙盒中并保存为image.png
        [fileManager createDirectoryAtPath:DocumentsPath withIntermediateDirectories:YES attributes:nil error:nil];
        [fileManager createFileAtPath:[DocumentsPath stringByAppendingString:@"/image.png"] contents:data attributes:nil];

        //得到选择后沙盒中图片的完整路径
        filePath = [[NSString alloc]initWithFormat:@"%@%@",DocumentsPath, @"/image.png"];

        //关闭相册界面
        [picker dismissModalViewControllerAnimated:YES];

        //创建一个选择后图片的小图标放在下方
        //类似微薄选择图后的效果
        UIImageView *smallimage = [[UIImageView alloc] initWithFrame:
                                   CGRectMake(50, 120, 40, 40)] ;

        smallimage.image = image;
        //加在视图中
        [self.view addSubview:smallimage];

    }

}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    NSLog(@"您取消了选择图片");
    [picker dismissModalViewControllerAnimated:YES];
}

-(void)sendInfo
{
    NSLog(@"图片的路径是：%@", filePath);

    NSLog(@"您输入框中的内容是：%@", _textEditor.text);
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

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