ios - 在 Unity iOS 上打开设置应用程序

Question

我需要一种方法让用户进入“设置”应用程序以禁用多任务手势。我知道在 iOS 8 中，您可以通过 Objective-C 中的 URL 以编程方式启动设置应用程序:

NSURL * url = [NSURL URLWithString: UIApplicationOpenSettingsURLString];

但我不知道如何在 Unity 中获取此 URL 以与 Application.OpenURL() 一起使用

Answer 1

您需要为此编写一个小型 iOS 插件，这里有更多相关信息:http://docs.unity3d.com/Manual/PluginsForIOS.html

这是您的解决方案，询问是否有不清楚的地方。

脚本/Example.cs

using UnityEngine;

public class Example 
{
    public void OpenSettings()
    {
        #if UNITY_IPHONE
            string url = MyNativeBindings.GetSettingsURL();
            Debug.Log("the settings url is:" + url);
            Application.OpenURL(url);
        #endif
    }
}

插件/MyNativeBindings.cs

public class MyNativeBindings 
{
    #if UNITY_IPHONE
        [DllImport ("__Internal")]
        public static extern string GetSettingsURL();

        [DllImport ("__Internal")]
        public static extern void OpenSettings();
    #endif
}

插件/iOS/MyNativeBindings.mm

extern "C" {
    // Helper method to create C string copy
    char* MakeStringCopy (NSString* nsstring)
    {
        if (nsstring == NULL) {
            return NULL;
        }
        // convert from NSString to char with utf8 encoding
        const char* string = [nsstring cStringUsingEncoding:NSUTF8StringEncoding];
        if (string == NULL) {
            return NULL;
        }

        // create char copy with malloc and strcpy
        char* res = (char*)malloc(strlen(string) + 1);
        strcpy(res, string);
        return res;
    }

    const char* GetSettingsURL () {
         NSURL * url = [NSURL URLWithString: UIApplicationOpenSettingsURLString];
         return MakeStringCopy(url.absoluteString);
    }

    void OpenSettings () {
        NSURL * url = [NSURL URLWithString: UIApplicationOpenSettingsURLString];
        [[UIApplication sharedApplication] openURL: url];
    }
}