我知道这可能是一个天真的问题,但它对我来说是一个问题。现在我已经在applicationDidFinishLaunching中声明了对象。如何使用此对象的applicationDidFinishLaunching 外如何使用这些对象在按钮操作功能例如objective c如何从外部访问applicationDidFinishLaunching变量
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
// Insert code here to initialize your application
AKanji *test2=[[AKanji alloc] init];
........
}
- (IBAction)kButton:(id)sender {
//iwant to access test 2 here
}
Wha t是面向对象代码和实例变量的知识史吗? – Wain 2014-12-05 09:46:13
我对他们很陌生。对不起,我搜索了网络机器人没有找到任何答案 – 2014-12-05 09:48:47
你应该阅读https://developer.apple.com/library/ios/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Introduction/Introduction.html#//apple_ref/doc/uid/TP40011210-CH1-SW1,并通过https://developer.apple.com/library/ios/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/EncapsulatingData/EncapsulatingData.html#//apple_ref/doc/uid/TP40011210- CH5-SW2了解这部分 – Wain 2014-12-05 09:52:30