timer - Stop a updatetimer in android -


i try create custome elapse time , start timer once hold volume key , suppose time must stop after release key have problem when release key timer still moving. please advise on i'm missing thanks

public boolean onkeydown(int keycode, keyevent event) { if ((keycode == keyevent.keycode_volume_down && shouldcont == true && event.getaction() == keyevent.action_down)){ startrecord(); repeat = true; if(repeat == true && event.getaction() == keyevent.action_down ){ t.scheduleatfixedrate(new timertask() {

            public void run() {                 runonuithread(new runnable() {                      public void run() {                         long timegonemillis = system.currenttimemillis() - starttime;                          textview tv = (textview) findviewbyid(r.id.timer);                          tv.settext(""+util.millisecondstotimer(timegonemillis));                                              }                  });             }          },         //set how long before start calling timertask (in milliseconds)         0,         //set amount of time between each execution (in milliseconds)         1000);}         shouldcont = false;     }

i found out cant kill timer instances using cancel() added t.cancel() , timer instances stop.


Comments

Post a Comment

Popular posts from this blog

linux - xterm copying to CLIPBOARD using copy-selection causes automatic updating of CLIPBOARD upon mouse selection -

i've tried various ways coerce xterm (versions 285 , 292) copy selection clipboard clipboard whenever press ctrl-shift-c. promising way far has been, in ~/.xresources, put this: xterm*vt100.translations: #override \ ctrl shift <keypress> c: copy-selection(clipboard) \n\ ctrl shift <keypress> v: insert-selection(clipboard) ctrl-shift-v works perfectly, copying has nuance... if restart xterm, highlighting text puts things in primary clipboard; expected, proper, default behavior. if hit ctrl-shift-c, copies current selection clipboard clipboard. the bug, however, if highlight text after first time pressed ctrl-shift-c, you'll see highlighting copies both primary and clipboard. cannot figure out how stop xterm updating clipboard upon selection... , doesn't make sense me in first place. i said, @ specific point in time, copy selection clipboard... yet starts updating automatically upon selection after doing once... anyone have workaround...
Read more

c++ - qgraphicsview horizontal scrolling always has a vertical delta -

Image
i've subclassed qgraphicsview custom canvas used in cad application. i've reimplemented qgraphicsview::wheelevent check keyboard modifiers control key and, if control key pressed, zoom. i'm trying implement horizontal scroll when user holds shift , uses wheel. the problem i'm having horizontal scrolling always scrolls 0.279. not huge problem, hugely annoying , points else being wrong. so, here questions: is right way implement horizontal scrolling? if not, is? how eliminate delta of 0.279? thanks in advance. code , sample output below void myview::zoom(int delta) { double factor = pow(1.2, delta/abs(delta)); this->scale(factor, factor); } void myview::scrollhorizontal(int level) { qpointf center = maptoscene(viewport()->rect().center()); qdebug() << "center: " << center.x() << ", " << center.y(); centeron(qpointf(center.x() - level, center.y())); } void myview::wheelevent(qwheeleve...
Read more