Java Key Binding Not Working -


i have code:

        frame = new jframe();     frame.addwindowlistener(new windowadapter() {         @override         public void windowclosing(windowevent e) {             isrunning = false;         }     });     frame.setdefaultcloseoperation(windowconstants.do_nothing_on_close);     frame.setsize(width * scale, height * scale);     frame.setresizable(false);     frame.setvisible(true);      jpanel panel = new jpanel();     frame.add(panel);     panel.setfocusable(true);     panel.requestfocusinwindow();      // keybinds     keymanager.start(panel);

and in keymanager:

    public static void start(jcomponent comp) {     comp.requestfocus();     comp.requestfocusinwindow();      comp.getinputmap(jcomponent.when_in_focused_window).put(keystroke.getkeystroke(keyevent.vk_w, 0), "w");     comp.getactionmap().put("w", new abstractaction() {         public void actionperformed(actionevent e) {             pressedkeys.put(keystroke.getkeystroke("w"), true);         }     });

but code works sometimes. there problem somewhere? there line of code need add?

well, fixed problem. used hashmap (keystroke, boolean) store key values. read using keystroke.getkeystroke(string key) not idea, changed hashmap using (integer, boolean) integer being keyevent.vk_(key). works :)


Comments

Post a Comment

Popular posts from this blog

android - How to save instance state of selected radiobutton on menu -

i have options menu in toolbar radibutton item : <item android:id="@+id/map_menu" android:icon="@drawable/ic_layer" android:orderincategory="102" app:showasaction="always" android:title="@string/action_settings"> <menu> <group android:id="@+id/map_types_group" android:checkablebehavior="single" > <item android:id="@+id/map_terrain" android:orderincategory="1" app:showasaction="ifroom" android:title="@string/map_terrain"/> <item android:id="@+id/map_normal" android:orderincategory="2" android:checked="true" app:showasaction="ifroom" android:title="@string/map_normal"/> ...
Read more

python 3 IndexError: list index out of range -

my problem average value on won't show returns error traceback (most recent call last): (file location), line 29, in <module> average_score = [[x[8],x[0]] x in a_list] (file location), line 29, in <listcomp> average_score = [[x[8],x[0]] x in a_list] indexerror: list index out of range the code import csv class_a = open('class_a.txt') csv_a = csv.reader(class_a) a_list = [] row in csv_a: row[3] = int(row[3]) row[4] = int(row[4]) row[5] = int(row[5]) minimum = min(row[3:5]) row.append(minimum) maximum = max(row[3:5]) row.append(maximum) average = sum(row[3:5])//3 row.append(average) a_list.append(row[0:8]) print(row[8]) this works when test out values 0 7 ,even if change location of avarage sum still error when call a_list.append(row[0:8]) you're appending array using indexes 0, 1, 2, 3, 4, 5, 6, , 7 row . means when later iterate a_list , x variable has indexes 7, , you're trying a...
Read more

IF statement in MySQL trigger -

this query code in mysql trigger. if 1=2 select 'yes'; else select 'no'; end if; but has following error: if '1'='2' select 'yes' error code: 1064. have error in sql syntax; check manual corresponds mysql server version right syntax use near 'if '1'='2' select 'yes'' @ line 1 0.000 sec what solution?
Read more