unity探索者之复制内容到剪贴板

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unity中提供的TextEditor类，只能在windows环境下使用，对于安卓和iOS，就不得不使用原生代码了

在unity中使用宏区分下平台：

    public void CopyToClipboard(string input)
    {
#if UNITY_EDITOR
        TextEditor t = new TextEditor();
        t.text = input;
        t.OnFocus();
        t.Copy();
#elif UNITY_IPHONE
        CopyTextToClipboard_iOS(input);
#elif UNITY_ANDROID
        AndroidJavaClass unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
        AndroidJavaObject currentActivity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity");
        AndroidJavaClass tool = new AndroidJavaClass("com.my.ugcf.Tool");
        tool.CallStatic("CopyTextToClipboard", currentActivity, input);
#endif
    }

java：

    public static void CopyTextToClipboard(final Context activity, final String str) throws Exception {
        if (Looper.myLooper() == null){
            Looper.prepare();
        }
        clipboard = (ClipboardManager) activity.getSystemService(Activity.CLIPBOARD_SERVICE);
        ClipData textCd = ClipData.newPlainText("data", str);
        clipboard.setPrimaryClip(textCd);
    }

objective-c：

　　void CopyTextToClipboard_iOS(const char *text)
    {
        UIPasteboard *pasteboard = [UIPasteboard generalPasteboard];
        pasteboard.string = _CreateNSString(text);
    }