Unity-IOS交互整理

Posted 2020-10-22 威少小二的园霖（微博：威少orz）

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最近年前谈工作，顺便把ios交互的内容整理一下随笔。

我这里平时用的跟IOS交互的方式，主要分为三部分

1、Asset/Plugins/IOS下面有一个继承自UnityAppController的AppController的类，文件名是AppController.mm

2、在Xcode里面跟Unity交互的类UnityViewController.h和UnityViewController.m

3、在Unity里面跟IOS交互的类

需要注意的是：

Unity调用IOS的方法，是不能直接调用objective-c的方法的，而是调用C语言的方法。

代码如下：

1、

AppController.mm

这个文件丢到Unity的Asset/Plugins/IOS下

#import "UnityAppController.h" //导入Unity的UnityAppController.h
#import "UnityViewController.h"//导入我们自己写接口的类的.h文件

@interface AppController : UnityAppController
@property(nonatomic,strong) UINavigationController *naVC;
-(void) createUI;
@end



@implementation AppController

-(void) createUI
{
    _rootController = [[UIViewController alloc]init];
    _rootView = [[UIView alloc]initWithFrame:[UIScreen mainScreen].bounds];
    _rootController.view = _rootView;
    
    UnityViewController *vc = [[UnityViewController alloc]init];
    self.naVC =[[UINavigationController alloc]initWithRootViewController:vc];
    
    [_rootView addSubview:self.naVC.view];
    
    _window.rootViewController = _rootController;
    [_window bringSubviewToFront:_rootView];
    [_window makeKeyAndVisible];
}

@end


IMPL_APP_CONTROLLER_SUBCLASS(AppController); //这是一个固定写法，因为这个代码，所以启动界面是从这里启动

2、

UnityViewController.h

这个文件是放在Xcode工程目录下的

#import "UnityAppController.h"

@interface UnityViewController : UIViewController
@property (nonatomic,strong) NSString *str;
@end

UnityViewController.m　

这个文件是放在Xcode工程目录下的

#import "UnityViewController.h"
#import "UnityAppController+ViewHandling.h"
#import <UI/UnityView.h>
@interface UnityViewController ()

@end

@implementation UnityViewController

static id object;
- (void)viewDidLoad {
    
    [super viewDidLoad];
    // self.view.backgroundColor = [UIColor blueColor];
    object = self.navigationController;
    self.str = @"我是威少，我成功调用了ios的接口";
    [self.view addSubview:GetAppController().unityView];
    GetAppController().unityView.frame = self.view.frame;
    
    // Do any additional setup after loading the view.
}

//视图已经完全过渡到屏幕上时调用的方法
-(void)viewDidAppear:(BOOL)animated{
    
    UnitySendMessage("ReceiveiOSMessage", "ReceiveiOSInputMessage", [self.str UTF8String]);
    //1.参数1接受消息所挂的脚本的物体名称
    //2.参数2接受消息的方法名
    //3.参数3发送的字符串
    
}

//返回字符串类型，注意字符串类型在返回的时候一定要加上strdup，
//Unity可以调用这个方法
const char * _BackStringParm(const char *parm)
{
    const char *parm1 = strcat(strdup(parm),"dddd");
    return strdup(parm1);
}
//C语言返回int类型，
//Unity可以调用这个方法
int _BackIntParm(int parm)
{
    return parm;
}

//c语言返回void,
//Unity可以调用这个方法
void _BackBtnPress()
{
    UnitySendMessage("ReceiveiOSMessage", "ReceiveiOSInputMessage", "点击我返回");
    //[object popViewControllerAnimated:YES];
}

-(void)viewWillAppear:(BOOL)animated{
    self.navigationController.navigationBar.hidden = YES;
}

-(void)viewDidDisappear:(BOOL)animated
{
    self.navigationController.navigationBar.hidden = NO;
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
 #pragma mark - Navigation
 
 // In a storyboard-based application, you will often want to do a little preparation before navigation
 - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
 // Get the new view controller using [segue destinationViewController].
 // Pass the selected object to the new view controller.
 }
 */

@end