一.常用控件方法
1.imageview的图片点击事件
UIImageView* imageview1 = [[UIImageViewalloc]initWithFrame:CGRectMake(10,10,300,50)];
imageview1.image = [UIImageimageNamed:@"05.png"];
imageview1.userInteractionEnabled =YES;
UIGestureRecognizer *singleTap = [[[UITapGestureRecognizeralloc]initWithTarget:selfaction:@selector(UesrClicked)]autorelease];
[imageview1 addGestureRecognizer:singleTap];
[self.view addSubview:imageview1];
-(void)UesrClicked {
NSLog(@"imageview is clicked!!");
}
2.button
UIButton* logout = [[UIButtonalloc]initWithFrame:CGRectMake(40,260,240,35)];
//UIButton 是继承自 UIControl，具有UIControl和UIView的所有属性。
logout.backgroundColor = [UIColorgreenColor];
[logout setTitle:@"退出登陆" forState:UIControlStateNormal]; //设置正常状态下 Button标题
[logout setTitleColor:[UIColorblackColor]forState:UIControlStateNormal];//设置正常状态
[logout addTarget:selfaction:@selector(onTextFieldButtonClicked:)forControlEvents:UIControlEventTouchUpInside];
button上的title对齐
Button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;//左对齐(UIControlContentHorizontalAlignment、CenterUIControlContentHorizontalAlignmentFill、UIControlContentHorizontalAlignmentRight)
Button.contentVerticalAlignment = UIControlContentVerticalAlignmentBottom;//底部对其(UIControlContentVerticalAlignmentCenter、UIControlContentVerticalAlignmentFill、UIControlContentVerticalAlignmentTop)
[self.view addSubview:logout];
给button添加图片的点击事件
distanceButton = [[UIButtonalloc]init];
distanceButton.frame =CGRectMake(220,10,80,40);
[distanceButtonsetBackgroundImage:[UIImageimageNamed:@"item_default_bg.9.png"]forState:UIControlStateNormal]; //给button设置背景图片
distanceButton.layer.cornerRadius =4.0;
[distanceButtonaddTarget:selfaction:@selector(BtnClick:)forControlEvents:UIControlEventTouchUpInside];
[self.contentViewaddSubview:distanceButton];
[distanceButton release];
3.labellabel2= [[UILabelalloc]initWithFrame:CGRectMake(15,50,250,30)];
label2.font = [UIFontsystemFontOfSize:14.0];
label2.text =@"成为传热维尔体育去维尔体育企鹅我让他有伍尔特";
label2.textColor = [UIColorblackColor] ;
label2.numberOfLines =0; //自动换行
label2.adjustsFontSizeToFitWidth =YES; //字体自适应
label2.backgroundColor = [UIColorclearColor];
[self.contentViewaddSubview:label2];
[label2 release];
复杂颜色字体混合时，下面得字体测距方法比较好，虽然已经被舍弃，但是还是可以用的。
FLT_MAX :不考虑换行的话，写FLT_MAX，否知写死长度值（配合换行用，否则不换行了）。
FLT_MAX ：高度无限制，但是以实际高度为准
productTextLabel = [[UILabel alloc] init];
productTextLabel.text = [NSString stringWithFormat:@" %@",[HsOTCDataModel getInstance].productName];
productTextLabel.font = [UIFont systemFontOfSize:13.0f];
productTextLabel.numberOfLines = 0;
labelSize = [productTextLabel.text sizeWithFont:productTextLabel.font constrainedToSize:CGSizeMake(MAIN_SCREEN_WIDTH - 30, FLT_MAX) lineBreakMode:NSLineBreakByWordWrapping];
productTextLabel.frame = CGRectMake(5, 10, labelSize.width, labelSize.height);
productTextLabel.textColor = [HsConfigration uiColorFromString:@"#d06424"];
productTextLabel.backgroundColor = [UIColor clearColor];
[borderView addSubview:productTextLabel];
4.UITextField
passwordtextField = [[UITextFieldalloc]initWithFrame:CGRectMake(10,60,MAIN_SCREEN_WIDTH,40)];
// textField.backgroundColor = [UIColor colorWithRed:0.5 green:0.5 blue:0 alpha:0.5];
passwordtextField.borderStyle =UITextBorderStyleRoundedRect; //设置边框类型
passwordtextField.secureTextEntry=YES; //密码以小点代替
//inputText.background = [UIImage imageNamed:@""]; //设置背景图片
passwordtextField.delegate =self; //设置委托对象
passwordtextField.contentVerticalAlignment =UIControlContentVerticalAlignmentCenter;//文字内容垂直居中，此为UIControl的属性
[self.viewaddSubview:passwordtextField];
passwordtextField.placeholder =@"请输入密码";
5.对话框
UIAlertView *alertView=[[UIAlertView alloc] initWithTitle:@"登陆成功" message:nil delegate:self cancelButtonTitle:@"OK,I know" otherButtonTitles:nil];
[alertView show];
// [alertView release];
6.画线
UIView *divideLine = [[UIViewalloc]initWithFrame:CGRectMake(leftWidth,layoutHight+55,MAIN_SCREEN_WIDTH-2*leftWidth,1)];
divideLine.backgroundColor = [RtStyleuiColorFromString:@"#e3e3e3"];//[UIColor redColor];
[contentView addSubview: divideLine];
[divideLine release];
7.边框
//边框---------
UIView *borderView2 = [[UIViewalloc] initWithFrame:CGRectMake(leftWidth,layoutHight+180,MAIN_SCREEN_WIDTH - leftWidth*2,50)];
borderView2.layer.backgroundColor = [[UIColorwhiteColor] CGColor];
borderView2.layer.cornerRadius =4.0f;
borderView2.layer.borderWidth =1.0f;
// borderView2.layer.borderColor = [[RtStyle uiColorFromString:@"#CAB194"] CGColor];
[contentView addSubview:borderView2];
[borderView2 release];
8.UIScrollView
UIScrollView *contentView = [[UIScrollViewalloc]initWithFrame:CGRectMake(0,2,MAIN_SCREEN_WIDTH,MAIN_SCREEN_HEIGHT-MAIN_TOPNAV_HEIGHT-3)];
contentView.bounces = YES;
contentView.contentSize = CGSizeMake( MAIN_SCREEN_WIDTH, 650);
// contentView.backgroundColor = [UIColor redColor];
[self addSubview:contentView];
二。常用方法总结
1. Button 处理函数
#pragma mark -------------------
#pragma mark textFieldButton 的响应函数
- (void)onTextFieldButtonClicked:(UIButton*)button{
[accounttextFieldresignFirstResponder];
[passwordtextFieldresignFirstResponder];
if(accounttextField.text.length==0||passwordtextField.text.length==0)
{
UIAlertView *alertView=[[UIAlertViewalloc]initWithTitle:@"用户名或密码不能为空" message:@"请键入用户名或密码" delegate:self cancelButtonTitle:@"OK,I know" otherButtonTitles:nil];
[alertView show];
NSLog(@"用户名或密码不能为空");
}
elseif ([accounttextField.textisEqualToString:@"sww"]&&[passwordtextField.textisEqualToString:@"123456"])
{
/* UIAlertView *alertView=[[UIAlertView alloc] initWithTitle:@"登陆成功" message:nil delegate:self cancelButtonTitle:@"OK,I know" otherButtonTitles:nil];
[alertView show];*/
// [alertView release];
NSLog(@"登陆成功" );
//这里使用展示方式跳转到LLViewController
SettingViewController *settingViewControlle = [[SettingViewControlleralloc]init];
[self presentViewController:settingViewControlleanimated:YEScompletion:^{ }];
}
else
{
NSLog(@"用户名或者密码错误！");
UIAlertView *alertView=[[UIAlertViewalloc]initWithTitle:@"用户名或密码错误" message:@"请重新键入用户名或密码" delegate:self cancelButtonTitle:@"OK,I know"otherButtonTitles:nil];
[alertView show];
}
}
三。字符串转换
数字保留3个小数点：.3f。亿元转换
if([data.title isEqualToString:@"市值"]){
if([[packet getMarketValue]intValue] >= 10000000){
data.numStr = [NSString stringWithFormat:@"%.3f亿",[[packet getBalance]intValue]/100000000.0];
// data.numStr = [[packet getBalance]intValue]/10000000.0;
}
NSString *tempA = @"123";
NSString *tempB = @"456";
1，字符串拼接
- NSString *newString = [NSString stringWithFormat:@"%@%@",tempA,tempB];
2，字符转int
- int intString = [newString intValue];
3，int转字符
NSString *stringInt = [NSString stringWithFormat:@"%d",intString];
4，字符转float
float floatString = [newString floatValue];
5，float转字符
NSString *stringFloat = [NSString stringWithFormat:@"%f",intString];