有没有什么办法来检查，如果在机器人的活动注册在manifest文件开始之前？

Is there any way to check if an Activity in android is registered in manifest file before starting it?

说，例如：

 String test = "com.Hy5.activity.Navigate";  
             Intent intent = new Intent().setClassName(this.context,
                 test);                  intent.putExtra("params", params);  


            try {  
                ((Activity) context).startActivity(intent);  
            } catch (Exception e) {  
                            //e.printStackTrace();
        } // This Activity will implement 

在这里，我要检查，如果测试活动已登记在清单或不。

Here I want to check if Test activity has been registered in manifest or not.

或者有什么办法可以读/解析这个manifest.xml的在应用程序包，就像我做的说：getResources（）的getString（R.string.Sprint1）？

Or is there any way I can read/parse this manifest.xml in application package just like i do for say: getResources().getString(R.string.Sprint1)??

推荐答案

使用PackageManager.getActivityInfo（） 这将引发PackageManager.NameNotFoundException如果它不存在

Use PackageManager.getActivityInfo() It will throw PackageManager.NameNotFoundException if it's not there

不知道你会做这个，虽然赢得任何东西。

Not sure you will gain anything by doing this though.