c# - Get an accelerometer's device id(or monitor an accelerometer in the backbround) on WinRT -


i looking method of monitoring accelerometer in background.

we can sample windows phone implements @ msdn.

according sample code, requires id of accelerometer. however, there no property gets device id winrt. 

var rs = await backgroundexecutionmanager.requestaccessasync(); if (rs != backgroundaccessstatus.allowedmayuseactiverealtimeconnectivity || rs != backgroundaccessstatus.allowedwithalwaysonrealtimeconnectivity) return;  var btb = new backgroundtaskbuilder() {     name = taskname,     taskentrypoint = taskentrypoint }; btb.settrigger(trigger); taskregist = btb.register(); taskregist.completed += new backgroundtaskcompletedeventhandler(onbackgroundtaskcompleted);  try {     var dres = await trigger.requestasync();    // requires accelerometer's device-id     switch (dres) {     case devicetriggerresult.allowed:         break;     case devicetriggerresult.lowbattery:         break;     case devicetriggerresult.deniedbysystem:         break;     default:         break;     } } catch (invalidoperationexception) { }

can observe accelerometer's state in background on winrt devices?

based on msdn, deviceusetrigger background task can access sensors api within windows runtime phone app, other winrt devices aren't supported

sensors support in windows phone store apps when running on phone, deviceusetrigger background task can access sensors api within windows runtime app. using deviceusetrigger background task access sensors api within windows phone silverlight app not supported.

here list of supported enter image description here

and here basic example of consuming accelerometer's data handling readingchanged event

public mainpage()     {         this.initializecomponent();         this.initializeaccelerometer();     }     private accelerometer _accelerometer;     private void initializeaccelerometer()     {          this._accelerometer = accelerometer.getdefault();         if (_accelerometer == null)         {             accelerometertextblock.text = "no accelerometer found.";             return;         }          uint minreportinterval = _accelerometer.minimumreportinterval;         var desiredreportinterval = minreportinterval > 16 ? minreportinterval : 16;         this._accelerometer.reportinterval = desiredreportinterval;         this._accelerometer.readingchanged += accelerometer_readingchanged;     }     private async void accelerometer_readingchanged(accelerometer sender, accelerometerreadingchangedeventargs args)     {         if (args.reading != null)         {             await dispatcher.runasync(windows.ui.core.coredispatcherpriority.normal, () =>             {                 accelerometertextblock.text = string.format(                     "x: {0,5:0.00} - y: {1,5:0.00} - z: {2,5:0.00} - timestamp: {3}",                     args.reading.accelerationx,                     args.reading.accelerationy,                     args.reading.accelerationz,                     args.reading.timestamp);             });         }     }

Comments

Post a Comment

Popular posts from this blog

c# - Validate object ID from GET to POST -

i have method allows user access comment have made on site. have post method lets them update comment. my normal solution send entire comment model through, let them update it, update on database when post back. involve sending commentid through in hiddenfor , can manipulated. how can verify commentid sent in get method same i'm getting in post , not able alter comment wish? how can verify commentid sent in method same i'm getting in post? basically have validate following things in post - user logged-in user. authenticated users post comments. commentid in post , should valid commentid , should present in database. userid associated logged-in user should same userid associated comment . comment should contain userid column, can check @ time of update. to make sure update happens comment has been sent in get - hold commentid in session , in post action compare commentid value in session .
Read more

node.js - Custom Model Validator SailsJS -

when using custom model validator checks record within model. return within spread doesn't seem end control flow. //post.js model /** * custom validator **/ types: { isuservalid: function(user_id) { var promise = require('bluebird'); promise.all([ user.findone({id: user_id}) ]) .spread(function(user) { console.log(user); if (user === null || user === undefined) { console.log('failed'); return false; }else{ console.log('passed'); return true; } }); } }, my response standard validation failed response. { "error": "e_validation", "status": 400, "summary": "1 attribute invalid", "model": "post", "invalidattributes": { "owner": [ { "rule": "isuservalid", ...
Read more

php - Find a regex to take part of Email -

i have following emails need extract part from: bestellnummer xxx: 1 von xxx, 1er pack ------------- anfang der nachricht ------------- foo bar baz foo bar baz // <<<<< need text here ------------- ende der nachricht ------------- ------------- anfang der nachricht ------------- foo bar baz foo bar baz ------------- ende der nachricht ------------- there 0 unlimited occurences of ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- and i'm able extract first part regex: $re = "/------------- .*? -------------.?(.*?).?------------- .*? -------------/s"; but, i'm quite new on learning regex, i'm pretty sure there must better regex extract part (foo bar baz foo bar baz) of text between ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- as can in different languages, i'm using .? to match between hyphens. i...
Read more