如何让UIButton调用目标类并挂接此方法？(使用theos编译越狱调整)

Question

我正在尝试将UIButton放入iPhones MobileSMS.app (消息应用程序)中。它成功地出现在视图中，但当您按下它时，它当然会崩溃，因为它没有调用任何目标类和挂钩方法。我想挂接的目标类和方法在下面的第二段代码中，我如何实现在按钮被按下时调用它？(我的主要目标是在对话视图中放置一个按钮，当它被点击时，它将强制短信，而不是自动使用iMessage。)

#import <UIKit/UIKit.h>
#import <ChatKit/ChatKit.h>

@interface CKTranscriptCollectionViewController : UIViewController
@end

%hook CKTranscriptCollectionViewController
-(void)loadView {
   %orig;
   UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
   [button setTitle:@"SMS" forState:UIControlStateNormal]; 
   button.frame = CGRectMake(0, 0, 50, 100);
   [button addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
   [self.view addSubview:button]; 
}

-(void)buttonPressed {
    NSLog(@"Button Pressed!");
}

%end

点击按钮时我想调用的类和方法(属于标题"ChatKit/CKConversation.h")：

%hook CKConversation
-(BOOL)forceMMS {

    return TRUE;

}
%end

Answer 1

它崩溃是因为它探测到了一个参数。尝试将方法定义更改为：

-(void)buttonPressed:(id)sender 

或将目标更改为：

[button addTarget:self action:@selector(buttonPressed) forControlEvents:UIControlEventTouchUpInside];

Answer 2

使用徽标定义您必须编写的新操作/方法的Opsss

此操作或方法之前的%new

我建议您创建一个私有类来使用这样的操作

[self buttonPressed];

私有类应该如下所示

@interface CKTranscriptCollectionViewController (TWEAKNAME)
-(void)buttonPressed;
@end

因此，您的代码应该如下所示

#import <UIKit/UIKit.h>
#import <ChatKit/ChatKit.h>

@interface CKTranscriptCollectionViewController : UIViewController
@end

@interface CKTranscriptCollectionViewController (TWEAKNAME)
-(void)buttonPressed;
@end

%hook CKTranscriptCollectionViewController
-(void)loadView {
   %orig;
   UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
   [button setTitle:@"SMS" forState:UIControlStateNormal]; 
   button.frame = CGRectMake(0, 0, 50, 100);
   [button addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
   [self.view addSubview:button]; 
}

%new
-(void)buttonPressed {
    NSLog(@"Button Pressed!");
}

%end

GoodLuck