Actionbar spinner-Usage Examples

Today needs to change a actionbar on the spinner font color, the results have not been solved for a long time, and finally found that he is in the code to add a TextView, and then use adapter loaded, not directly under the framework of the layout. Now summarize the use of spinner, see the following code directly

1) First, you need to have a spinneradapter to load the data with spinner.

 PrivateBaseadapter Mstackadapter =NewBaseadapter () {@Override Public intGetCount () {returnmState.stack.size (); } @Override PublicDocumentinfo GetItem (intposition) {            returnMState.stack.get (MState.stack.size ()-position-1); } @Override Public LongGetitemid (intposition) {            returnposition; } @Override PublicView GetView (intposition, View Convertview, ViewGroup parent) {            if(Convertview = =NULL) {Convertview=Layoutinflater.from (Parent.getcontext ()). Inflate (R.layout.item_title, parent,false); }            FinalTextView title =(TextView) Convertview.findviewbyid (Android.            R.id.title); FinalDocumentinfo doc =GetItem (position); if(Position = = 0) {                 FinalRootinfo root =Getcurrentroot ();            Title.settext (Root.title); } Else{title.settext (doc.displayname); }                //No padding when shown in ActionbarConvertview.setpadding (0, 0, 0, 0); returnConvertview; } @Override PublicView Getdropdownview (intposition, View Convertview, ViewGroup parent) {            if(Convertview = =NULL) {Convertview=Layoutinflater.from (Parent.getcontext ()). Inflate (R.layout.item_title, parent,false); }            FinalImageView subdir =(ImageView) Convertview.findviewbyid (R.id.subdir); FinalTextView title =(TextView) Convertview.findviewbyid (Android.            R.id.title); FinalDocumentinfo doc =GetItem (position); if(Position = = 0) {                FinalRootinfo root =Getcurrentroot ();                Title.settext (Root.title);            Subdir.setvisibility (View.gone); } Else{title.settext (doc.displayname);            Subdir.setvisibility (view.visible); }            returnConvertview; }    };

There are two more important methods.

One is GetView: This method is loaded with hints for prompt

One is Getdropview: This is for loading the dropdown box

2) Add Dropview Click to listen for events

    PrivateOnnavigationlistener Mstacklistener =NewOnnavigationlistener () {@Override Public BooleanOnnavigationitemselected (intItemposition,LongitemId) {            if(mignorenextnavigation) {mignorenextnavigation=false; return false; }                 while(MState.stack.size () > itemposition + 1) {mstate.stacktouched=true;            MState.stack.pop ();            } oncurrentdirectorychanged (ANIM_UP); return true; }        }; 

3) Add Spinneradapter and Dropview

-1);

Actionbar spinner-Usage Examples