image - speech bubbles like in comics for iphone -

-

i new iphone application development. building iphone app user needs able add speech bubbles (think comics) on existing images. have questions on how implement this,

  • have empty speech bubble image , overlay on existing image - use separate uiimage speech bubble? or should draw speech bubble myself?

  • allow user move speech bubble using touch- pointers or examples great!

  • also let him resize speech depending on amount of text - pointers or examples great!

  • finally should able add text speech bubble - there way add textbox on existing image?

thanks,

update -

found similar example on site move/resize uiview - http://www.switchonthecode.com/tutorials/creating-basic-animations-on-iphone

i use transparent uiview uiimageview containing bubble , uitextview set editable.

use resize text view whenever text view changed notification sent: cgrect frame = textview.frame; frame.size.height = textview.contentsize.height; textview.frame = frame;

subclass uiview , use touchesbegan , touchesmoved determine move view being dragged.

sizewithfont: constrainedtosize: linebreakmode string size method

how save uiimage of layout photo album:

cgrect screenrect = cgrectmake(0, 0, 320, 416); // change necessary uigraphicsbeginimagecontext(screenrect.size); [self.view.layer renderincontext:uigraphicsgetcurrentcontext()]; uiimage *screenshot = uigraphicsgetimagefromcurrentimagecontext(); uigraphicsendimagecontext(); uiimagewritetosavedphotosalbum(screenshot, nil, nil, nil);

Comments

Post a Comment

Popular posts from this blog

javascript - Enclosure Memory Copies -

-
function myclass() { //lots , lots of vars , code here. this.bar = function() { //do numerous enclosed myclass vars } this.foo = function() { alert('hello'); //don't enclosed variables. } } each instance of myclass gets own copy of bar , foo, why prototyped methods use less memory. however, know more memory use of inner methods. it seems obvious me (1) below must true. agree? not distinct myclass instances have own distinct copies of bar, must have own distinct copies of myclass enclosure. (or else how bar method keep myclass variables straight on per instance basis?) now (2) question i'm after. since inner foo method doesn't use in myclass enclosure natural qustion is: javascript smart enough not keep myclass enclosure in memory use of foo? this depend entirely on implementation not language. naive implementations keep far more around others. answer true e.g. v8 (chrome's js engine) may not true spider...
Read more

php - Replacing tags in braces, even nested tags, with regex -

-
example preg_replace('/\{[a-za-z.,\(\)0-9]+\}/', 'replaced', 'lorem ipsum dolor sit {tag1({tag2()})}, consectetur adipiscing elit.'); the result: lorem ipsum dolor sit {tag1(replaced)}, consectetur adipiscing elit. question as can see "tag2" has been replaced, want replace "tag1" know how can this? (in cases might this: {tag1({tag2({tag3()})})}) , on.) btw using preg_replace_callback, easier show preg_replace here site can test code: http://www.spaweditor.com/scripts/regex/index.php you need add curly braces character set. here's pattern used: /\{[a-za-z.,\(\)\{\}0-9]+\}/ and here result: "lorem ipsum dolor sit replaced, consectetur adipiscing elit."
Read more