好吧,我正在学习如何在Mac上编程,而我却厌倦了寻找答案,你能解释一下我在程序中做错了什么。
首先,我在窗口上拖动了2个按钮(加载图像和卸载)。然后,我拖动了一个自定义视图项,这就是我对Test_Loading_ImagesAppDelegate的所作所为。 h :
#import <Cocoa/Cocoa.h>
@interface Test_Loading_ImagesAppDelegate : NSView {
NSWindow *window;
IBOutlet NSView *mypicture;
}
- (IBAction)LoadImage: (id)sender;
- (IBAction)Unload: (id)sender;
@property (assign) IBOutlet NSWindow *window;
@end
之后,我通常在Interface Builder上链接了一些内容并制作了Test_Loading_ImagesAppDelegate。 m :
#import "Test_Loading_ImagesAppDelegate.h"
@implementation Test_Loading_ImagesAppDelegate
@synthesize window;
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
// Insert code here to initialize your application
}
-(IBAction)LoadImage: (id) sender {
NSURL *myurl;
NSImage *image;
NSData *myurldata;
myurl = [NSURL URLWithString:@"http://....jpg"];
myurldata = [NSData dataWithContentsOfURL:myurl];
image = [NSImage initWithData:myurldata];
[mypicture setImage: image];
}
-(IBAction)Unload: (id) sender {
//Well, still thinking how I'm going to do this, and I would like to make another question: If I dealloc the View or something else the image will disappear?
}
@end
提前致谢。
答案 0 :(得分:0)
嗯,再次来到这里之后我发现这个http://www.markj.net/iphone-asynchronous-table-image/适用于iPhone,但可以很容易地适应OS X.感谢。