Difference between revisions of "UIButton"

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m (→‎Button types: 2 more button types.)
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'''UIButton''' is a UI element, which is usually a button that the user can tap on to do some actions.
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The NSAutoreleasePool class is a thin wrapper around the '''NSPushAutoreleasePool''' and '''NSPopAutoreleasePool''' functions.
  
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== Button types ==
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<source lang="objc">
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{{function signature
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#ifdef __cplusplus
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|signature=+(UIButton*)buttonWithType:(UIButtonType)type;
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extern "C" {
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|firmware=2.0 –
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#endif
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}}
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void *NSPushAutoreleasePool(NSUInteger capacity);
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There 6 documented button types and 9 undocumented button types
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void NSPopAutoreleasePool(void* token);
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{| class="wikitable"
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#ifdef __cplusplus
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|-
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}
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! Type !! Class !! Note
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#endif
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|-
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</source>
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| 0 (UIButtonTypeCustom) || UIButton ||
 
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|-
 
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| 1 (UIButtonTypeRoundedRect) || UIRoundedRectButton ||
 
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|-
 
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| 2 (UIButtonTypeDetailDisclosure) || UIButton || UITableNextButton.png / UITableNextButtonPressed.png
 
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|-
 
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| 3 (UIButtonTypeInfoLight) || UIButton || UIButtonBarInfo.png
 
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|-
 
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| 4 (UIButtonTypeInfoDark) || UIButton || UIButtonBarInfoDark.png
 
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|-
 
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| 5 (UIButtonTypeContactAdd) || UIButton || UIButtonBarContactAdd.png / UIButtonBarContactAddPressed.png
 
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|-
 
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| 100 || [[UINavigationButton]] || style = 0
 
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|-
 
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| 101 || UINavigationButton || style = 1
 
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|-
 
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| 102 || UINavigationButton || style = 2
 
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|-
 
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| 110 || [[UITexturedButton]] ||
 
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|-
 
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| 111 || [[UIGlassButton]] ||
 
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|-
 
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| 112 || UINavigationButton || style = 4
 
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|-
 
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| 113 || UIRoundedRectButton || fillColor = [[UIColor|tableCellGroupedBackgroundColor]]
 
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|-
 
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| 114 || [[UIPopoverButton]] || Normal
 
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|-
 
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| 115 || UIPopoverButton || Delete
 
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|}
 
  
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== References ==
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Example:
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* Official documentation: {{sdklink|UIKit|UIButton}}
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{{IPFHeader|UIKit|3=2}}
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<source lang="objc">
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static void MyMethod()
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{
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    void *pool = NSPushAutoreleasePool(0);
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    [[[NSObject alloc] init] autorelease];
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    NSPopAutoreleasePool(pool);
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}
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</source>
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The "capacity" argument of NSPushAutoreleasePool only serves as a hint. It is unused in the current implementation.
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{{occlass|library=Foundation.framework}}

Revision as of 09:44, 2 February 2017

The NSAutoreleasePool class is a thin wrapper around the NSPushAutoreleasePool and NSPopAutoreleasePool functions. 

#ifdef __cplusplus
extern "C" {
#endif
void *NSPushAutoreleasePool(NSUInteger capacity);
void NSPopAutoreleasePool(void* token);
#ifdef __cplusplus
}
#endif

Example: 

static void MyMethod()
{
    void *pool = NSPushAutoreleasePool(0);
    [[[NSObject alloc] init] autorelease];
    NSPopAutoreleasePool(pool);
}

The "capacity" argument of NSPushAutoreleasePool only serves as a hint. It is unused in the current implementation.

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