IOS學習筆記

[uiview beginanimations:@"view flip" context:nil]; //設定動畫塊

[uiview setanimationduration:1.25]; //動畫時間
[uiview setanimationcurve:uiviewanimationcurveeaseinout]; // 動畫曲線
[uiview setanimationtransition:uiviewanimationtransitionflipfromright forview:self.view cache:yes]; // 動畫轉換型別
[uiview commitanimations]; //提交動畫

用到比較多的還是uiscrollerview，再加乙個uipagecontrol，然後再加往uiscrollview中新增子view，並設定子view的frame.origin.x的值，最後呼叫uiscrollerview的scrollrecttoviewsible，實現滾動。**如下:

pagecontroller.h

//

// pagecontroller.h
// controller
//// created by cdy on 12-7-29.
//#import "viewcontroller.h"
@inte***ce pagecontroller : viewcontroller
@property (nonatomic, retain) iboutlet uiscrollview *contentview;
@property (nonatomic, retain) iboutlet uipagecontrol *pagecontrol;
- (ibaction)changepage:(id)sender;
@end

pagecontroller.m

//

// pagecontroller.m
// controller
//// created by cdy on 12-7-29.
//#import "pagecontroller.h"
@inte***ce pagecontroller ()
@end
@implementation pagecontroller
@synthesize contentview,pagecontrol;
static nsuinteger knumberofpages = 5;
- (id)initwithnibname:(nsstring *)nibnameornil bundle:(nsbundle *)nibbundleornil
return self;
}-(void)scrollviewdidscroll:(uiscrollview *)scrollview 
- (void)viewdidload
-(void)loadviewsintoscrollerviews

用uiimage的

(uiimage *)stretchableimagewithleftcapwidth:(nsinteger)leftcapwidth topcapheight:(nsinteger)topcapheight得到乙個自動伸縮的即中間伸縮，四角不變。

offimage_ = [[uiimage imagenamed:@"滑動條_紅.png"] stretchableimagewithleftcapwidth:4 topcapheight:0];

onimage_ = [uiimage imagenamed:@"滑動條_白.png"];
thumbimage_ = [uiimage imagenamed:@"滑輪控制.png"];
[self setthumbimage:thumbimage_ forstate:uicontrolstatenormal];
[self setthumbimage:thumbimage_ forstate:uicontrolstatehighlighted];
[self setminimumtrackimage:offimage_ forstate:uicontrolstatenormal];
[self setmaximumtrackimage:onimage_ forstate:uicontrolstatenormal];

六、ios的按home鍵後的600s後台執行功能

]; dispatch_async(dispatch_get_global_queue(dispatch_queue_priority_default, 0), ^);

}

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