android - Start two activities simultaneously one in foreground other in background -


i have 2 activities splashscreen , mainactivity.

mainactvity download data , show it.

now want start both activities on application start, mainactivity in background , splashscreen in foreground , when data of mainactivity download complete want make mainactivity foreground , finish splashscreen.

i have seen many solution no 1 going in situation. please give me suggestion or example .

i think it's better make splash screen download data , when completed show new activity (mainactivity). in onstart metod use downloaded data stored on phone.

your example: way can have resolve way start mainactivity first , onstart start splashscreen: 

class splashscreen extends activitiy {      public void onstart() {        eventbus.register(this);     }      @subscribe     public void finisheddownload(finisheddownloadevent) {        this.finish()     } }   class mainactivity extens activity () {     public void onstart () {         open(new intent(splashscreen.class)); // have           download();    }     public void download (onfinish onfinish) {         ... download         eventbus.post(new finisheddownloadevent());    } }

i forgot: 

 class eventbus {      private final static bus instance = new bus();      public static void register (object obj) {         instance.register(obj)     }       public static void post (event obj) {         instance.post(obj)     }    }

eventbuss


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