小编jes*_*bon的帖子

有没有人设法使用Quartz在现有PDF中编写自定义注释？我使用CGPDFDocumentRef等渲染了PDF,现在工作正常:)我成功阅读了Annots dict

    if(!CGPDFDictionaryGetArray(pageDictionary, "Annots", &outputArray)) { ....

但我无法理解,如何写新的注释..

嗯,没有人？这不可能...... :(

我在我的应用程序中使用UIImagePickerControllerSourceTypeCamera,但想要将摄像机视图添加到子视图中.不是模态视图.

现在我正在使用

UIImagePickerController * picker = [[UIImagePickerController alloc] init];
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.delegate = self;
[self presentModalViewController:picker animated:YES];   

我想像这样使用它,但似乎不起作用..

UIImagePickerController * picker = [[UIImagePickerController alloc] init];
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.delegate = self;
[picker.view setFrame:CGRectMake(300, 40, 300, 200)];
[self.view addSubview:picker.view];

我知道UIImagePickerControllerSourceTypeCamera只能用作模态视图.例如Hipstamatic如何使用它？