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先在interface builder上放上6个rectbutton，竖放，一排三个

然后我们下面来看代码

.h文件代码

1 //

2 // autosizeviewcontroller.h

3 // autosize

4 //

5 // created by scott on 10-10-26.

6 // copyright 2010 __mycompanyname__. all rights reserved.

7 //

8

9 #import

10

11 @interface autosizeviewcontroller : uiviewcontroller {

12 uibutton *button1;

13 uibutton *button2;

14 uibutton *button3;

15 uibutton *button4;

16 uibutton *button5;

17 uibutton *button6;

18 }

19

20 @property (nonatomic,retain) iboutlet uibutton *button1;

21 @property (nonatomic,retain) iboutlet uibutton *button2;

22 @property (nonatomic,retain) iboutlet uibutton *button3;

23 @property (nonatomic,retain) iboutlet uibutton *button4;

24 @property (nonatomic,retain) iboutlet uibutton *button5;

25 @property (nonatomic,retain) iboutlet uibutton *button6;

26 @end

27

下面我们看.m的代码

//

// autosizeviewcontroller.m

// autosize

//

// created by scott on 10-10-26.

// copyright 2010 __mycompanyname__. all rights reserved.

//

#import autosizeviewcontroller.h

@implementation autosizeviewcontroller

@synthesize button1;

@synthesize button2;

@synthesize button3;

@synthesize button4;

@synthesize button5;

@synthesize button6;

/*

// the designated initializer. override to perform setup that is required before the view is loaded.

- (id)initwithnibname:(nsstring *)nibnameornil bundle:(nsbundle *)nibbundleornil {

if ((self = [super initwithnibname:nibnameornil bundle:nibbundleornil]))

{

// custom initialization

}

return self;

}

*/

/*

// implement loadview to create a view hierarchy programmatically, without using a nib.

- (void)loadview {

}

*/

/*

// implement viewdidload to do additional setup after loading the view, typically from a nib.

- (void)viewdidload {

[super viewdidload];

}

*/

// override to allow orientations other than the default portrait orientation.

- (bool)shouldautorotatetointerfaceorientation:(uiinterfaceorientation)interfaceorientation {

// return yes for supported orientations

return (interfaceorientation != uiinterfaceorientationportraitupsidedown);

}

- (void) willrotatetointerfaceorientation:(uiinterfaceorientation)interfaceorientation duration:(nstimeinterval)duration

{

if (interfaceorientation==uiinterfaceorientationportrait || interfaceorientation==uiinterfaceorientationportraitupsidedown) {

button1.frame=cgrectmake(20, 20, 125, 125);

button2.frame=cgrectmake(175, 20, 125, 125);

button3.frame=cgrectmake(20, 168, 125, 125);

button4.frame=cgrectmake(175, 168, 125, 125);

button5.frame=cgrectmake(20, 315, 125, 125);

button6.frame=cgrectmake(175, 315, 125, 125);

}else {

button1.frame=cgrectmake(20, 20, 125, 125);

button2.frame=cgrectmake(20, 155, 125, 125);

button3.frame=cgrectmake(177, 20, 125, 125);

button4.frame=cgrectmake(177, 155, 125, 125);

button5.frame=cgrectmake(328, 20, 125, 125);

button6.frame=cgrectmake(328, 155, 125, 125);

}

}

- (void)didreceivememorywarning {

// releases the view if it doesn't have a superview.

[super didreceivememorywarning];

// release any cached data, images, etc that aren't in use.

}

- (void)viewdidunload {

// release any retained subviews of the main view.

// e.g. self.myoutlet = nil;

self.button1=nil;

self.button2=nil;

self.button3=nil;

self.button4=nil;

self.button5=nil;

self.button6=nil;

[super viewdidunload];

}

- (void)dealloc {

[button1 release];

button2.release;

button3.release;

button4.release;

button5.release;

button6.release;

[super dealloc];

}

@end

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