uiviewcontroller - iPhone - how to find a parent View -

-

i need find view inside hierarchy.

here how build view stack.

inside first uitableviewcontroller push uiviewcontroller contains uitabbarcontroller:

[[self navigationcontroller] pushviewcontroller:itemvc animated:yes];

inside uitabbarcontroller add uitableviewcontroller:

 isstableviewcontroller *graphics = (isstableviewcontroller *)[tabbarcontroller.viewcontrollers objectatindex:3];

inside didselectrowatindexpath present modal view controller using uinavigationcontroller:

 graficoviewcontroller *graph = [[graficoviewcontroller alloc] initwithnibname:@"graficoviewcontroller" bundle:nil];   uinavigationcontroller *navigationcontroller = [[uinavigationcontroller alloc] initwithrootviewcontroller:graph];   [self presentmodalviewcontroller:navigationcontroller animated:yes];       [navigationcontroller release];

now (big) question is: have hide nagivationbar of first uitableviewcontroller inside last view. tried this:

 [[[[[self parentviewcontroller] parentviewcontroller] parentviewcontroller] navigationcontroller] setnavigationbarhidden:yes];

but doesn't work. can tell me how can find ancestor view??? thanks.

store pointer (as property) uinavigationcontroller in application delegate or custom singleton object. can access navigation place.


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