Best practices: Layouts on Android (Programmatic vs XML) -


this question has been bugging me time. i've developed couple of apps on android platform , somehow find myself resorting java code in order construct layouts. in professional development environment, acceptable? or should xml files go-to approach? find xml more tedious approach , often, these layouts don't same on devices. don't it. professional viewpoint, has been able develop apps complex views purely using xml files? question killing me because google recommends using xml ui never looks same on devices unless done programmatically. or doing wrong?

note i'm referring android 2.2 , 2.3, majority of users use.

i use xml layouts on pretty every fragment , activity of every app write. see need create views dynamically, tho configuration of listviews, showing/hiding views, etc needs doing in code. me advantages of xml are:

  • ability use layout editors (eclipse)
  • easier preview layouts
  • possible benefit auto-localisation of layouts
  • easily maintain different parallel layouts difference devices (screens)
  • can sense of layout looking @ (easier code)
  • easy break layouts down pieces (fragments, includes, etc) remove duplication
  • keeps separation between visual design, , functionality behind it

i can't think of reasons put layouts code - sounds hell.

i expect reason layouts don't same because xml not defining layouts correctly. bear in mind android tools convert xml layouts code, there's no inherent problem using xml layouts versus dynamic - both end code.


-

Comments

Post a Comment

Popular posts from this blog

unity3d - Rotate an object to face an opposite direction -

i have object , b. when click on object b, rotates object b (a faces b). b doesn't face a. need following : when faces b, need face opposite direction. have code rotating @ b. how rotate face opposite direction after that? vector3 targetdirection = target - transform.position; float step = speed * time.deltatime; vector3 newdirection = vector3.rotatetowards (turretdome.transform.forward, targetdirection, step, 0.0f); turretdome.transform.rotation = quaternion.lookrotation (newdirection); you object facing object b, want inverse direction of object after that? objecta.transform.rotation = quaternion.inverse(objecta.transform.rotation) but lets assume example turretdome object a, (negate direction): turretdome.transform.rotation = quaternion.lookrotation (-newdirection); naturally, both of these snippets not show how smoothen rotation, seem know how use time.deltatime. just incase unsure, quaternion.lerp this
Read more

angular - Is it possible to get native element for formControl? -

i've got angular2 reactive form . created formcontrol s , assigned input fields by [formcontrol]=... . understand creates nativeelement <-> formcontrol link. my question: possible nativeelement formcontrol ? wanna myformcontrol.nativeelement.focus() i can share 1 terrible solution works me. in reactive forms can use either 1) formcontroldirective ts mycontrol = new formcontrol('') template <input type="text" [formcontrol]="mycontrol"> or 2) formcontrolname ts myform: formgroup; constructor(private fb: formbuilder) {} ngoninit() { this.myform = this.fb.group({ foo: '' }); } template <form [formgroup]="myform"> <input type="text" formcontrolname="foo"> </form> so these directives write patch like 1) formcontroldirective const originformcontrolngonchanges = formcontroldirective.prototype.ngonchanges; formcontroldirective.proto
Read more

javascript - Why jQuery Select box change event is now working? -

i working on product filters user select select box according his/her preference not getting selected value user in jquery. html code:- <select name="product_filter" id="product_filter"> <option value="price_low_first">price : low high</option> <option value="price_high_first">price : high low</option> <option value="latest">latest</option> <option value="popular">most popular</option> </select> jquery code: $(function () { $("#product_filter").change(function () { alert("hi") var selectedtext = $(this).find("option:selected").text(); var selectedvalue = $(this).val(); alert("selected text: " + selectedtext + " value: " + selectedvalue); }); }); hi believe code perfect. once please check jquery.min.js
Read more