一 .首先介绍UIButton按钮
IOS开发中最常用的控件,需要了解其基本定义和常用设置,以便在开发在熟练运用。1、UIButton的定义
UIButton *button=[[UIButton buttonWithType:(UIButtonType);
能够定义的button类型有以下6种,
typedef enum {
UIButtonTypeCustom = 0, 自定义风格
UIButtonTypeRoundedRect, 圆角矩形
UIButtonTypeDetailDisclosure, 蓝色小箭头按钮,主要做详细说明用
UIButtonTypeInfoLight, 亮色感叹号
UIButtonTypeInfoDark, 暗色感叹号
UIButtonTypeContactAdd, 十字加号按钮
} UIButtonType;
2、设置frame
button1.frame = CGRectMake(20, 20, 280, 40);
[button setFrame:CGRectMake(20,20,50,50)];
3、button背景色
button1.backgroundColor = [UIColor clearColor];
[button setBackgroundColor:[UIColor blueColor]];
4、state状态
forState: 这个参数的作用是定义按钮的文字或图片在何种状态下才会显现
enum {
UIControlStateNormal = 0, 常规状态显现
UIControlStateHighlighted = 1 << 0, 高亮状态显现
UIControlStateDisabled = 1 << 1, 禁用的状态才会显现
UIControlStateSelected = 1 << 2, 选中状态
UIControlStateApplication = 0x00FF0000, 当应用程序标志时
UIControlStateReserved = 0xFF000000 为内部框架预留,可以不管
};
@property(nonatomic,getter=isEnabled)BOOL enabled;
@property(nonatomic,getter=isSelected)BOOL selected;
@property(nonatomic,getter=isHighlighted)BOOL highlighted;
5 、设置button填充图片和背景图片
[button setImage:[UIImage imageNamed:@"checkmarkControllerIcon"]forState:UIControlStateNormal];
[buttonsetBackgroundImage: [UIImageimageNamed:@"checkmarkControllerIcon"]forState:UIControlStateNormal];
6、设置button标题和标题颜色
[button1 setTitle:@"点击" forState:UIControlStateNormal];
[button setTitleColor:[UIColorredColor]forState:UIControlStateNormal];
7、设置按钮按下会发光
button.showsTouchWhenHighlighted=NO;
8、添加或删除事件处理
[button1 addTarget:self action:@selector(butClick:) forControlEvents:UIControlEventTouchUpInside];
[btn removeTarget:nil action:nil forControlEvents:UIControlEventTouchUpInside];
9、 设置按钮内部图片间距和标题间距
UIEdgeInsets insets; // 设置按钮内部图片间距
insets.top = insets.bottom = insets.right = insets.left = 10;
bt.contentEdgeInsets = insets;
bt.titleEdgeInsets = insets; // 标题间距
二.其次UILabel
//创建UILabel
UILabel *label1 = [[UILabel alloc] initWithFrame:CGRectMake(20, 40, 280, 80)];
//设置背景色
label1.backgroundColor = [UIColor grayColor];
//设置tag
label1.tag = 91;
//设置标签文本
label1.text = @"轻斟浅醉17真帅";
//设置标签文本字体和字体大小
label1.font = [UIFont fontWithName:@Arial size:30];
//设置文本对齐方式
label1.textAlignment = UITextAlignmentCenter;
//文本对齐方式有以下三种
typedef enum {
UITextAlignmentLeft = 0,左对齐
UITextAlignmentCenter,居中对齐
UITextAlignmentRight, 右对齐
} UITextAlignment;
//文本颜色
label1.textColor = [UIColor blueColor];
//超出label边界文字的截取方式
label1.lineBreakMode = UILineBreakModeTailTruncation;
//截取方式有以下6种
typedef enum {
UILineBreakModeWordWrap = 0, 以空格为边界,保留整个单词
UILineBreakModeCharacterWrap, 保留整个字符
UILineBreakModeClip, 到边界为止
UILineBreakModeHeadTruncation, 省略开始,以……代替
UILineBreakModeTailTruncation, 省略结尾,以……代替
UILineBreakModeMiddleTruncation,省略中间,以……代替,多行时作用于最后一行
} UILineBreakMode;
//文本文字自适应大小
label1.adjustsFontSizeToFitWidth = YES;
//当adjustsFontSizeToFitWidth=YES时候,如果文本font要缩小时
//baselineAdjustment这个值控制文本的基线位置,只有文本行数为1是有效
label1.baselineAdjustment = UIBaselineAdjustmentAlignCenters;
//有三种方式
typedef enum {
UIBaselineAdjustmentAlignBaselines = 0, //默认值文本最上端于label中线对齐
UIBaselineAdjustmentAlignCenters,//文本中线于label中线对齐
UIBaselineAdjustmentNone,//文本最低端与label中线对齐
} UIBaselineAdjustment;
//文本最多行数,为0时没有最大行数限制
label1.numberOfLines = 2;
//最小字体,行数为1时有效,默认为0.0
label1.minimumFontSize = 10.0;
//文本高亮
label1.highlighted = YES;
//文本是否可变
label1.enabled = YES;
//去掉label背景色
label1.backgroundColor = [UIColor clearColor];
//文本阴影颜色
label1.shadowColor = [UIColor grayColor];
//阴影大小
label1.shadowOffset = CGSizeMake(1.0, 1.0);
//是否能与用户交互
label1.userInteractionEnabled = YES;
[self.view addSubview:label1];
时间不早了,大家熬夜的赶紧睡觉吧,有时间我把其他UI类的都整理出来,供大家使用!
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