Queue-handling priority information in Android

Requirements: When the interface in processing message A, suddenly received message B, need to immediately display B information, and then continue to display message A, or receive message C, and then display the message a after the message C;

The principle is simple. In a poll, the element in the message list is queried, first the highest priority is processed, and then the higher priority is processed;

Do an object class first

    Private class obj{        int  val;          int Times ;          Public OBJ (intint times ) {            this. val = val;              this. Times = times ;        }    }

Make a list of saved messages again

New Arraylist<fragment_1.obj> ();

To do a polling mechanism again

PrivateRunnable Handlermsg_run =NewRunnable () {@Override Public voidrun () {if(Mlist.size ()! = 0) {OBJ val= Mlist.get (0); inttt =DoSomething (Val); State.settext (Val.val+" + " +TT); if(TT = = 0) {Mlist.remove (0);                    Tv.settext (GetList (mlist)); System.out.println ("-Remove-" + Val.val + ">>" +getList (mlist)); }            } han.postdelayed ( This, 500); 　　}    }; Han=NewHandler (Looper.getmainlooper ()); Han.post (Handlermsg_run);

Handling Insert List information

    Private voidInsertintrandom) {        intTimes = 5; intNewValue =Random; synchronized(mlist) {if(mlist.size () = = 0) Mlist.add (NewObj (random, Times)); Else if(Mlist.get (0). val! =newvalue) {                    BooleanSHas =false;  for(Obj obj:mlist) {if(Obj.val = =newvalue) {SHas=true;  Break; }                    }                    if(!SHas) {Mlist.add (0,NewObj (NewValue, Times));                    Sort (mlist); } } }　　}

To sort the inserted messages

    Private Static Super New Comparator<obj>() {        @Override        publicint  compare (obj arg0, obj arg1) {             return arg0.val- arg1.val;        }    };     Private Static void Sort (list<obj> mlist) {        collections.sort (mlist, comparator);    }

Queue-handling priority information in Android