因为界面美化的需要,原有的控件SearchBar控件太丑了,又懒的研究SearchBar控件的新样式,所以决定重写个搜索功能的控件。
创建个UITextField的类对象。
[cpp] view plain copy searchField= [[[UITextField alloc]initWithFrame:CGRectMake(0,5,320,36)] autorelease]; searchField.textColor= [UIColorcolor WithRed:0.0/255.0 green:103.0/255.0 blue:155.0/255.0 alpha:1.0]; searchField.font= [UIFont systemFontOfSize:16] ; searchField.backgroundColor= [UIColor blueColor] ; searchField.contentVerticalAlignment=UIControlContentVerticalAlignmentCenter; [searchField addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged]; // textField的文本发生变化时相应事件 设置ReturnKeyType为UIRetuirKeySearch : [cpp] view plain copy [searchField setReturnKeyType:UIReturnKeySearch];
设置UITextField的delegate为self:
[cpp] view plain copy searchField.delegate=self; 之后编写响应点击搜索按钮的响应事件的函数: [cpp] view plain copy - (BOOL)textFieldShouldReturn:(UITextField*)theTextField { [theTextField resignFirstResponder]; NSLog(@”do something what you want”); returnYES; } textField的文本内容发生变化时,处理事件函数 [cpp] view plain copy - (void) textFieldDidChange:(UITextField*) TextField{ NSLog(@”textFieldDidChange textFieldDidChange”); if(![TextField.textisEqualToString:@”“]) { delButton.hidden=NO; // 仿制searchbar后面的小叉叉 } else{ delButton.hidden=YES; } }
哈,当然本人还是参考了下面的一位高人的idea
http://forums.macrumors.com/archive/index.php/t-523664.html 备注:此文章之前发布在baidu上,但是气不过百度的排版样式,转战csdn。
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