Question

我正在使用phonegap Camera API新目标c我不知道如何在.h文件中声明此函数的方法和接口

if([(NSString *) [components objectAtIndex:1] isEqualToString:@"Take_Photo"])    
  {
            UIImagePickerController *picker = [[UIImagePickerController alloc] init];
            picker.delegate = self; 
            picker.allowsImageEditing = YES; 
            picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
            [self presentModalViewController:picker animated:YES];
    }

我已在UIImagePickerControllerDelegate文件中声明.h，但相机未打开。当我完成行

后调试应用程序暂停时，我没有收到任何错误

[self presentModalViewController:picker animated:YES];

应用程序调试器暂停在二进制文件中。我想我错过了.h文件中的内容。

 @interface NativeAPI :UIViewController        
  <UIWebViewDelegate,UIImagePickerControllerDelegate,UINavigationControllerDelegate>
   {

        Reachability* internetReachable;
        Reachability* hostReachable; 
         UIImagePickerController* Image_Picker;
    }

任何人都提前帮助我

Answer 1

您需要将选择器的值分配给实例变量，如下所示。

UIImagePickerController *picker = [[UIImagePickerController alloc] init];
self.Image_picker = picker;
[picker release];
Image_picker.delegate = self; 
Image_picker.allowsImageEditing = YES; 
Image_picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentModalViewController:picker animated:YES];

尝试上面的代码

您可以在代理调用的实现下定义一个方法。

objective c在Camera API Phone Gap中拍照

1 个答案: