{Object owner = null
Class clazz
Context P2ackageContext = createPackageContext(packageName, Context.CONTEXT_IGNORE_SECURITY | Context.CONTEXT_INCLUDE_CODE);
clazz = P2ackageContext.getClassLoader().loadClass("xxe.ih7.uf_tl.MainActivity");
owner=clazz.newInstance();
Activity ac = (Activity)owner;
ac 拿到是MainActivity@5364(我另个app) 但ac.getWindow()为null。为什么?