ios - Are rotated Views compatible with Auto Layout? -


i have learned how rotate view affine transforms (see here). have learned auto layout (see here , here), , programmatic auto layout (see here , here). however, don't know how auto layout work rotated view.

this image shows do:

enter image description here

i think trouble comes width , height changing because of rotation. there way make rotated view fill it's superview? there trick auto layout work or incompatible after rotation?

(i've learned swift, i'd glad wade through objective-c answers if more familiar with.)

update

following @vinayjain's suggestion did following:

  • pinned subview edges superview in storyboard.

  • created iboutlets spacing constraints on sides of subview.

    @iboutlet weak var rightspace: nslayoutconstraint! @iboutlet weak var leftspace: nslayoutconstraint! @iboutlet weak var topspace: nslayoutconstraint! @iboutlet weak var bottomspace: nslayoutconstraint!

  • rotated subview 

    subview.transform = cgaffinetransformmakerotation(cgfloat(m_pi_2))

  • changed constraints outlets

    self.rightspace.constant = cgfloat(0) self.leftspace.constant = cgfloat(0) self.topspace.constant = cgfloat(0) self.bottomspace.constant = cgfloat(0)

but @ point realized don't need change spacing value. want spacing remain 0. need adjust itself. however, rotation messes up. effect shown in following image:

enter image description here

you can autolayout easily,

  • create constraints pinning edges superview

  • create outlets these constraints(say leftspace,rightspace,topspace,bottomspace)

  • check rotation, , update these values accordingly

use check rotation : check rotation


Comments

Post a Comment

Popular posts from this blog

javascript - Google App Script ContentService downloadAsFile not working -

i have web app developed using google app script htmlservice , html form, populating excel sheet in google drive using spreadsheetapp . , 1 section calling contentservice download data excel file. function doget(e) { // read excel sheet //getappfile(); // render application html template return htmlservice.createtemplatefromfile('index').evaluate() .settitle('go smart') .setsandboxmode(htmlservice.sandboxmode.iframe); } function downloaddoublequatecsvfile() { var sheetid = propertiesservice.getscriptproperties().getproperty('sheetid'); var ss = spreadsheetapp.openbyid(sheetid).getactivesheet(); //var ss = spreadsheetapp.getactivespreadsheet().getactivesheet(); var maxcolumn = ss.getlastcolumn(); var maxrow = ss.getlastrow(); var data = ss.getrange(1, 1, maxrow, maxcolumn).getvalues(); if (data.length > 1) { var csv = ""; (var row = 0; row < data.length; row++) { (var c...
Read more

javascript - Function overwritting -

is there way overwrite function or event handling in function? using addeventlistener, can have many event handlers on element want var test=document.getelementbyid("div"); test.addeventlistener("click",function(){alert("im first");},false); test.addeventlistener("click",function(){alert("im second");},false); // alerts "im first" , after "im second" but if want overwrite function/event example based on client width example this function one() { alert("first"); } function two() { alert("second"); } window.onresize = function() { var test = document.getelementbyid("div"); if (window.innerwidth > 500) { test.onclick = 1 } else { test.onclick = two; } } is possible in javascript? in case use effective little known approach. addeventlistener can accept object property handleevent event handler. in case it's easy overwr...
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