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Unity3D和iOS的对接及界面跳转

2016-08-08  本文已影响7753人  一只不靠谱的猿_

界面1 界面2 界面3 界面4
所需工具:
  1. Unity3d 5.0版本
  2. Xcode 6.2版本 模拟器的操作系统8.2v

步骤1. 创建一个unity项目
创建unity
#import <UIKit/UIKit.h>
#import "UnityAppController.h"
#import "UI/UnityView.h"
#import "UI/UnityViewControllerBase.h"
#import "HelloViewController.h"


@interface TNAppController : UnityAppController

@property (nonatomic, strong) UINavigationController *navController;

- (void)willStartWithViewController:(UIViewController*)controller;

@end

@implementation TNAppController

- (void)willStartWithViewController:(UIViewController*)controller
{
    _rootController = [[UIViewController alloc] init];
    _rootView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    _rootController.view = _rootView;
    
    HelloViewController *helloVC = [[HelloViewController alloc] initWithNibName:nil bundle:nil];
    self.navController = [[UINavigationController alloc] initWithRootViewController:helloVC];
    [_rootView addSubview:self.navController.view];
}

@end

IMPL_APP_CONTROLLER_SUBCLASS(TNAppController)

说明:
a. 导入的部分都为Untiy生成xcode项目中自带的.h文件,以后再导入也可以,HelloViewController.h文件为我们以后要创建的文件。
b. 这个文件继承UnityAppController.h这个文件,这点很重要,UnityAppController中提供了很多我们可以直接调用的属性,以便我们自己写的iOS文件可以使用window,rootController等属性,这些属性要和Untiy导出的iOS项目使用的是同一个。
c. willStartWithViewController这个方法好像是只有Unity 5左右的版本才用的是这个方法,4.x以前的版本使用的不是这个方法。这个方法是将要打开视图控制器的初始化方法。初始化根视图控制器和根视图。
d. IMPL_APP_CONTROLLER_SUBCLASS 这个很重要,它决定了我们的TNAppController.h 这个文件将被重载。UnityAppController.h 文件中有解释,如下图:

unityAppController.h C# javascript脚本文件

说明:
a. [DllImport ("__Internal")] 引入一个dll的内部文件.
b. 声明一个可调用的接口, private static extern int ActivateUI_iOS(int index);该方法可以有任意多个参数,这个参数的使用,到时候我们在iOS模拟器上可以看到,并且可以接收到iOS的返回值。
c. Start方法初始化Button,将button.cs文件与Hierarchy中的创建的Button组件进行关联。

test.js脚本文件

说明:
a. SetText(Input)方法,我们将在ios项目中调用这个方法,动态修改cube的名字。returnVal()方法是没有用的。
b. 我们将test.js文件和Hierarchy中的cube组件关联,在将text组件和cube关联,text组件作为cube组件的名称。

cube组件

步骤2. 配置iOS项目
生成的iOS目录

我们在untiy中创建的TNAppController.mm文件会出现在Libraries包中,创建的test.js,和button.cs文件会编译成dll.s文件中去
我们在classes文件夹中创建如下文件, MyViewInit.h和MyViewInit.mm文件,mm结尾的,是c++识别的文件,其中有c++代码

//
//  MyViewInit.h
//  Unity-iPhone
//
//  Created by wencun on 4/3/15.
//
//

#import <Foundation/Foundation.h>

@interface MyViewInit : NSObject

+ (void) enabled;
+ (void) disabled;
+ (void) setEnabled:(NSString *)foo;
+ (int) value;
@end

#pragma mark cplusplus code

#ifdef __cplusplus
extern "C" {
#endif
    
    int ActivateUI_iOS(int index);
    
#ifdef __cplusplus
} // extern "C"
#endif
//
//  MyViewInit.m
//  Unity-iPhone
//
//  Created by wencun on 4/3/15.
//
//

#import "MyViewInit.h"
#import "UnityInterface.h"

@implementation MyViewInit

+ (void) enabled{
    UnitySendMessage("Cube", "Enabled", "");
}

+ (void) disabled{
    UnitySendMessage("Cube", "Disabled", "");
}

+ (void) setEnabled:(NSString *)foo{
    UnitySendMessage("Cube", "SetText", [foo UTF8String]);
}

+ (int) value{
//    return UnitySendMessage("Cube", "returnVal", "");
    return 11;
}

@end

#pragma mark cplusplus code
extern "C"{
    int ActivateUI_iOS(int index){
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Unity调用了IOS方法" message:[NSString stringWithFormat:@"我是第%i次从Unity过来的!",index] delegate:nil cancelButtonTitle:@"取消" otherButtonTitles:nil, nil];
        [alert show];
//        NSString *s = [NSString stringWithCharacters:index length:99];
//        NSNumber *num = [NSNumber numberWithChar:index];
        return ++index;
    }
}

其中,UnitySendMessage为iOS调用Unity中的方法,第一个参数为组件名称,第二个参数为方法名,第三个参数为方法的参数,该方法的返回值为void,所有不能接受调用Unity方法中的返回值
pragma下方的代码为c++代码,为ActivateUI_iOS的实现,这样,点击Unity中的按钮就可以调用这个方法了,该方法有一个返回值,Unity中可以接收到

//
//  HelloViewController.m
//  Unity-iPhone
//
//  Created by wencun on 4/3/15.
//
//

#import "HelloViewController.h"
#import "CoolUnitySceneviewController.h"

@interface HelloViewController ()

@end

@implementation HelloViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.view.backgroundColor = [UIColor whiteColor];
    
    UIButton *btnNext = [UIButton buttonWithType:UIButtonTypeSystem];
    [btnNext setTitle:@"这是一个IOS界面,点我进入Unity界面。" forState:UIControlStateNormal];
    btnNext.frame = CGRectMake(40, 200, 300, 44);
    btnNext.layer.borderWidth = 1;
//    btnNext.layer.borderColor = [UIColor grayColor];
    btnNext.layer.cornerRadius = 3;
    btnNext.backgroundColor = [UIColor greenColor];
//    btnNext.center = CGPointMake(self.view.bounds.size.height / 2, 200);
    [self.view addSubview:btnNext];
    self.view.backgroundColor = [UIColor grayColor];
    
    [btnNext addTarget:self action:@selector(gotoUnityScene:) forControlEvents:UIControlEventTouchUpInside];
}

#pragma mark - Private methods
- (void)gotoUnityScene:(id)sender {
    NSLog(@"[HelloVC] Go to unity scene");
    
    CoolUnitySceneViewController *coolUnityVC = [[CoolUnitySceneViewController alloc] initWithNibName:nil bundle:nil];
    [self.navigationController pushViewController:coolUnityVC animated:YES];
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


@end
//
//  CoolUnitySceneviewController.m
//  Unity-iPhone
//
//  Created by wencun on 4/3/15.
//
//

#import "CoolUnitySceneViewController.h"
#import "GoodByeViewController.h"
#include "UI/UnityViewControllerBase.h"
#include "UnityAppController+ViewHandling.h"
#import "MyViewInit.h"

@interface CoolUnitySceneViewController ()

@end

@implementation CoolUnitySceneViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    [self.view addSubview:GetAppController().unityView];
    
    GetAppController().unityView.frame = self.view.frame;
    
    UILabel *text = [[UILabel alloc] initWithFrame:CGRectMake(40, 50, 300, 40)];
    text.text = @"欢迎进入Unity界面!(IOS)";
    text.textAlignment = NSTextAlignmentCenter;
    text.backgroundColor = [UIColor greenColor];
    [self.view addSubview:text];
    
    UITextField *tv = [[UITextField alloc] initWithFrame:CGRectMake(40, 100, 300, 40)];
    tv.textAlignment = NSTextAlignmentCenter;
    tv.layer.borderWidth = 1;
    tv.layer.cornerRadius = 3;
    [tv setPlaceholder:@"请键入文字..."];
    tv.tag = 101;
    [self.view addSubview:tv];
    
    UIButton *btnNext = [UIButton buttonWithType:UIButtonTypeSystem];
    [btnNext setTitle:@"点我可以修改CUBE中的文字(IOS)" forState:UIControlStateNormal];
    btnNext.frame = CGRectMake(40, 150, 300, 44);
    btnNext.backgroundColor = [UIColor whiteColor];
    btnNext.layer.borderWidth = 1;
    btnNext.layer.cornerRadius = 3;
    [self.view addSubview:btnNext];
    
    [btnNext addTarget:self action:@selector(goToLastScene:) forControlEvents:UIControlEventTouchUpInside];

    
    UIButton *recevied = [UIButton buttonWithType:UIButtonTypeSystem];
    [recevied setTitle:@"点我可以进入到另外一个IOS界面哦!(IOS)" forState:UIControlStateNormal];
    recevied.frame = CGRectMake(40, 450, 300, 44);
    recevied.backgroundColor = [UIColor whiteColor];
    recevied.layer.borderWidth = 1;
    recevied.layer.cornerRadius = 3;
    //    btnNext.center = CGPointMake(self.view.bounds.size.height / 2, self.view.bounds.size.width / 2);
    [self.view addSubview:recevied];
    
    [recevied addTarget:self action:@selector(recevied:) forControlEvents:UIControlEventTouchUpInside];
}

#pragma mark - Private methods
- (void)goToLastScene:(id)sender {
//    NSLog(@"[CoolUnitySceneVC] Go to the last scene");
    NSString *text = ((UITextField *)[self.view viewWithTag:101]).text;
    if ([text isEqualToString:@""]) {
        text = @"还没有给我一个名字哦!";
    }
    [MyViewInit setEnabled:text];
}

- (void)show:(id)sender{
    [MyViewInit setEnabled:@"show"];
}

- (void)recevied:(id)sender{
        GoodByeViewController *goodByeVC = [[GoodByeViewController alloc] initWithNibName:nil bundle:nil];
        [self.navigationController pushViewController:goodByeVC animated:YES];
}


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

@end

GetAppController().unityView,获取Unity中的视图,把这个视图添加到CoolUnitySceneViewController.h视图上,并设置该视图的框架

//
//  GoodByeViewController.m
//  Unity-iPhone
//
//  Created by wencun on 4/3/15.
//
//

#import "GoodByeViewController.h"
#import "CoolUnitySceneviewController.h"


@interface GoodByeViewController ()

@end

@implementation GoodByeViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.view.backgroundColor = [UIColor grayColor];
    
    UILabel *lblTheEnd = [[UILabel alloc] initWithFrame:CGRectMake(50, 200, 300, 44)];
    lblTheEnd.text = @"我是第二个IOS界面,欢迎回来!";
    
//    lblTheEnd.center = CGPointMake(self.view.bounds.size.height / 2, self.view.bounds.size.width / 2);
    
    [self.view addSubview:lblTheEnd];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}


@end

做一个UILabel,显示是IOS界面

iOS调用Unity方法的限制:
  1. iOS无法接受到Unity方法中的返回值,因为UnitySendMessage是void的类型
  2. iOS调用Unity方法只能传一个参数,若有多个参数,要拼接成字符串
Unity调用iOS方法:
  1. 调用方法的参数可以有任意个
  2. 可以接受到iOS的返回值
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