| 标题 | ios开发自定义checkbox控件 |
| 范文 | ios本身没有系统的checkbox组件，但是实际开发中会经常用到，所以专门写了一个checkbox控件，直接上代码 效果图： 名单 uicheckboxbutton.h文件如下： #import #import common.h @interface uicheckboxbutton : uicontrol { uilabel *label; uiimageview *icon; bool checked; id delegate; } @property (retain, nonatomic) id delegate; @property (retain, nonatomic) uilabel *label; @property (retain, nonatomic) uiimageview *icon; -(bool)ischecked; -(void)setchecked: (bool)flag; @end uicheckboxbutton.m文件如下： #import uicheckboxbutton.h @implementation uicheckboxbutton @synthesize label,icon,delegate; - (id)initwithframe:(cgrect)frame { if ( self = [super initwithframe: frame]) { icon =[[uiimageview alloc] initwithframe: cgrectmake (0, 0, frame.size.height, frame.size.height)]; [self setchecked:no]; [self addsubview: icon]; label =[[uilabel alloc] initwithframe: cgrectmake(icon.frame.size.width + 7, 0, frame.size.width - icon.frame.size.width - 10, frame.size.height)]; label.backgroundcolor =[uicolor clearcolor]; label.textalignment = uitextalignmentleft; [self addsubview:label]; [self addtarget:self action:@selector(clicked) forcontrolevents: uicontroleventtouchupinside]; } return self; } -(bool)ischecked { return checked; } -(void)setchecked: (bool)flag { if (flag != checked) { checked = flag; } if (checked) { [icon setimage: [uiimage imagenamed:@checkboxselect.png]]; } else { [icon setimage: [uiimage imagenamed:@checkboxnoselect.png]]; } } -(void)clicked { [self setchecked: !checked]; if (delegate != nil) { sel sel = nsselectorfromstring (@checkbuttonclicked); if ([delegate respondstoselector: sel]) { [delegate performselector: sel]; } } } -(void)dealloc { delegate = nil; [label release]; [icon release]; [super dealloc]; } @end 使用方法： uicheckboxbutton *checkboxbutton = [[ uicheckboxbutton alloc] initwithframe: cgrectmake(30, 50, 220, 25)]; checkboxbutton.delegate = self.delegate; checkboxbutton.label.text = [common gettextbytag:@nocostprompt]; checkboxbutton.label.textcolor = [common getcolorbytag:@alertlabelcolor]; [self.view addsubview:checkboxbutton]; [checkboxbutton release]; |
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