//1.按钮UIButton
UIButton *button //表示定义了一个按钮对象
button.frame=CGMake（x轴，y轴，宽，高）//（frame设置控件的位置）
//设置按钮上的文本
[button setTitle:@" 文本内容" forState：按钮状态]；
//设置按钮背景颜色
button.BackgroundColor=[UIColor 颜色]
//按钮的监听
[button addTaget:self action:@selector(btnClicklister) forControlEvents:按钮的控制状态]
//监听按钮的结果
-(void)btnClickEvents{
//按钮所具有的功能
}
//图片UIImage
//根据名称加载图片
UIImage *image=[UIImage imageNamed：@"图片名称"]
//设置按钮的背景图片
[button setBackgroundImage：image forState：按钮状态]
//相框UIImageView
UIImageView *imageview=[UIImageView alloc]initWithFrame：CGMake（x轴，y轴，宽，高）
//标签UILabel
//初始化标签并设置其位置
UILabel *label = [UILabel alloc]initWithFrame：CGMake：（x轴，y轴，宽，高）]
//设置标签的文本
label.text=@"标签文本内容"
//设置标签相对居中方式
label.textAlignment=NSTextAlignmentsCenter
//把控件添加到视图中去
[self.view addSubview：添加的控件]
//设置标签
@property(nonatomic,strong)UILabel *titlelabel;
//左边按钮
@property(nonatomic,strong)UIButton *leftbtn;
//右边按钮
@property(nonatomic,strong)UIButton *rightbtn;
//显示图片
@property(nonatomic,strong)UIImageView *myimageview;
//切换图片
@property(nonatomic,strong)NSArray *imagenames;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//定义一个数组来存放图片
self.imagenames = @[@"biaoqingdi",@"bingli",@"chiniupa",@"danteng",@"wangba"];
//设置标签的位置
self.titlelabel=[[UILabel alloc]initWithFrame:CGRectMake(50, 50, 150, 30)];
//设置标签的内容
self.titlelabel.text = @"biaoqingdi";
self.titlelabel.textAlignment=NSTextAlignmentCenter;
//把标签添加到视图中去
[self.view addSubview:self.titlelabel];
//设置左边按钮的位置
self.leftbtn=[[UIButton alloc]initWithFrame:CGRectMake(20, 150, 45, 45)];
//关闭交互
self.leftbtn.userInteractionEnabled=NO;
//根据名字加载图片
UIImage *leftimage = [UIImage imageNamed:@"left_disable"];
//设置按钮的状态和背景图片
[self.leftbtn setBackgroundImage:leftimage forState:(UIControlStateNormal)];
//对按钮进行监听
[self.leftbtn addTarget:self action:@selector(leftbtnAction) forControlEvents:(UIControlEventTouchUpInside)];
//把按钮添加到视图中
[self.view addSubview:self.leftbtn];
//设置图片的位置
self.myimageview=[[UIImageView alloc]initWithFrame:CGRectMake(80, 100, 200, 200)];
//根据名字加载图片
UIImage *image=[UIImage imageNamed:@"biaoqingdi"];
//调用图片
self.myimageview.image=image;
//把图片添加到视图中
[self.view addSubview:self.myimageview];
//设置右边按钮的位置
self.rightbtn=[[UIButton alloc]initWithFrame:CGRectMake(305, 150, 45, 45)];
//根据名字加载图片
UIImage *rightimage=[UIImage imageNamed:@"right_normal"];
//设置按钮的背景图片和状态
[self.rightbtn setBackgroundImage:rightimage forState:(UIControlStateNormal)];
//把按钮添加到视图中
[self.view addSubview:self.rightbtn];
[self.rightbtn addTarget:self action:@selector(rightbtnAction) forControlEvents:(UIControlEventTouchUpInside)];
}
-(void)rightbtnAction{
//切换到下一张图片
//获取当前是第几张图片
NSInteger index=[self.imagenames indexOfObject:self.titlelabel.text];
//不是最后一张才切换到下一张
if(index<4){
if(index==3){
//改变右边按钮的颜色和关闭交互
self.rightbtn.userInteractionEnabled=NO;
//根据名称加载图片
UIImage *image=[UIImage imageNamed:@"right_disable"];
//设置按钮的背景图片
[self.rightbtn setBackgroundImage:image forState:(UIControlStateNormal)];
}else{
//左边和右边按钮都是在一个正常状态
self.leftbtn.userInteractionEnabled = YES;
UIImage *leftnormal=[UIImage imageNamed:@"left_normal"];
UIImage *rightnormal=[UIImage imageNamed:@"right_normal"];
[self.leftbtn setBackgroundImage:leftnormal forState:(UIControlStateNormal)];
[self.rightbtn setBackgroundImage:rightnormal forState:(UIControlStateNormal)];
}
self.leftbtn.userInteractionEnabled=YES;
NSString *nextTitle=self.imagenames[index+1];
self.titlelabel.text=nextTitle;
//self.titlelabel.text=self.imagenames[index+1];
self.myimageview.image=[UIImage imageNamed:nextTitle];
}
}
-(void)leftbtnAction{
NSInteger index=[self.imagenames indexOfObject:self.titlelabel.text];
//不是最后一张才切换到下一张
if(index>0){
if(index==1){
//左边按钮交互关闭，图片切换
self.leftbtn.userInteractionEnabled=NO;
UIImage *image=[UIImage imageNamed:@"left_disable"];
[self.leftbtn setBackgroundImage:image forState:(UIControlStateNormal)];
}else{
//左边和右边按钮都是在一个正常状态
self.leftbtn.userInteractionEnabled = YES;
UIImage *leftnormal=[UIImage imageNamed:@"left_normal"];
UIImage *rightnormal=[UIImage imageNamed:@"right_normal"];
[self.leftbtn setBackgroundImage:leftnormal forState:(UIControlStateNormal)];
[self.rightbtn setBackgroundImage:rightnormal forState:(UIControlStateNormal)];
}
NSString *nextTitle=self.imagenames[index-1];
self.titlelabel.text=nextTitle;
//self.titlelabel.text=self.imagenames[index+1];
self.myimageview.image=[UIImage imageNamed:nextTitle];
}
}
-(void)btnClickLister{
NSLog(@"CLICK BUTTON");
}
-(void)Demo{
// 按钮UIBotton
// UIButton *button =[UIButton buttonWithType:UIButtonTypeContactAdd];
UIButton *button =[[UIButton alloc]initWithFrame:CGRectMake(50, 50, 80, 80)];
//frame表示控件的坐标和宽高（CGrect类型）
// button.frame = CGRectMake(50, 50, 80, 80);
//设置文本
// [button setTitle:@"yang" forState: UIControlStateNormal];
//根据名字加载图片
UIImage *image = [UIImage imageNamed:@"right_normal"];
//给按钮设置背景图片
[button setBackgroundImage:image forState: UIControlStateNormal];
button.backgroundColor = [UIColor redColor];
//按钮的监听
[button addTarget:self action:@selector(btnClickLister) forControlEvents:UIControlEventTouchUpOutside ];
UIImage *image1=[UIImage imageNamed:@"biaoqingdi"];
//添加到视图上
[self.view addSubview:button];
//相框UIImageView
UIImageView *imageview = [[UIImageView alloc]initWithFrame:CGRectMake(150, 50, 200, 200)];
//设置imageview显示的图片
imageview.image = image1;
[self.view addSubview:imageview];
//标签UILabel
UILabel *label =[[UILabel alloc]initWithFrame:CGRectMake(150, 270, 150, 30)];
//设置标签的文本
label.text=@"表情帝";
//设置居中方式
label.textAlignment=NSTextAlignmentCenter;
label.textColor=[UIColor redColor];
[self.view addSubview:label];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end