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POGet Singleton of class that WILL be included
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copied!<p>i currently have this classes:</p> <p><code>Activity</code>, <code>ActivityManager</code> (that extends <code>Activity</code>).</p> <p>I have one method in <code>Activity</code>, that gets the singleton object of <code>ActivityManager</code>.</p> <p>After a while, i saw that i got into a "live without life" paradox, as ActivityManager will only be "created" by the compiler, AFTER Activity is. So, how do i do this sort of stuff?</p> <p>I mean, how can i get a class of an object that is extended from the first one?</p> <p>I don't even know how to put this on google, so, help me please! Thanks</p> <p><strong>EDIT</strong></p> <p>Simplified <code>Activity</code></p> <pre><code>class Activity { public: void start(); }; void Activity::start(void){ // Start current Activity on the ActivityManager Stack ActivityManager *am; am = ActivityManager::getInstance(); am->start(this); } </code></pre> <p>Simplified <code>ActivityManager</code>:</p> <pre><code>class ActivityManager: public Activity { private: // Singleton Object static ActivityManager *singleton; public: // Singleton method to return defauld object instance static ActivityManager* getInstance(void); // Overload method, used to run others Activityes void start(Activity& activity); }; // Singleton method to return default ActivityManager object instance ActivityManager* ActivityManager::getInstance(){ if(!singleton) singleton = new ActivityManager(); return singleton; } // Function called on request to start new activity void ActivityManager::start(Activity& activity){ } </code></pre>

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