OI常用基础

//

//  ViewController.m

//  UI常用控件

//

//  Created by lanou on 16/7/10.

//  Copyright © 2016年 lanou. All rights reserved.

//

#import "ViewController.h"

@interface ViewController ()

//标题标签

@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;

//定义数组名

@property(nonatomic,strong)NSArray *imageNames;

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

self.imageNames =@[@"biaoqingdi",@"bingli",@"chiniupa",@"danteng",@"wangba"];

//  定义标签位置与名称

self.titleLabel = [[UILabel alloc]initWithFrame:CGRectMake(150,50, 150, 30)];

self.titleLabel.text = @"biaoqingdi";

addSubview:self.titleLabel];

//  定义做按钮的位置

self.leftBtn = [[UIButton alloc]initWithFrame:CGRectMake(20,150, 45, 45)];

//    关闭交互

self.leftBtn.userInteractionEnabled = NO;

//  定义按钮的图片

UIImage *leftImage = [UIImage imageNamed:@"left_disable"];

//    设置左按钮的背景图片

[self.leftBtn setBackgroundImage:leftImage forState:(UIControlStateNormal)];

[self.view addSubview:self.leftBtn];

//  显示相框名称

self.myImageView = [[UIImageView alloc]initWithFrame:CGRectMake(85, 100, 200, 200)];

UIImage *image = [UIImage imageNamed:@"biaoqingdi"];

self.myImageView.image = image;

//    显示相框图片

[self.view addSubview:self.myImageView];

//  设置右按钮的位置

self.rightBtn  =[[UIButton alloc]initWithFrame:CGRectMake(305, 150, 45, 45)];

\

//  设置右按钮的图片

UIImage *rightImage = [UIImage imageNamed:@"right_normal"];

//  设置右按钮的背景图片

[self.rightBtn setBackgroundImage:rightImage forState:(UIControlStateNormal)];

[self.view addSubview:self.rightBtn];

//  按钮的监听

[self.rightBtn addTarget:self action:@selector(rightBtnAction) forControlEvents:(UIControlEventTouchUpInside)];

[self.leftBtn addTarget:self action:@selector(leftBtnAction) 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];

//    不是为最后一张才切换到下一张

if (index < 4){

if (index == 3){

//            改变右边按钮的图片和关闭交互

self.rightBtn.userInteractionEnabled = NO;

UIImage *image = [UIImage imageNamed:@"right_disable"];

[self.rightBtn

//设置图片背景setBackgroundImage:image

//当前状态forState:(UIControlStateNormal)];

}else{

//        左边按钮和右边按钮都是在一个正常状态

//布尔型self.leftBtn.userInteractionEnabled = YES;

self.rightBtn.userInteractionEnabled = YES;

//相框          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.myImageView.image = [UIImage imageNamed:nextTitle];

}

}

-(void)leftBtnAction

{

NSInteger index = [self.imageNames indexOfObject:self.titleLabel.text];

if (index > 0){

if (index == 1){

//            改变左边按钮的图片和关闭交互

self.leftBtn.userInteractionEnabled = NO;

UIImage *image = [UIImage imageNamed:@"left_disable"];

[self.leftBtn setBackgroundImage:image forState:(UIControlStateNormal)];

}else{

//        左边按钮和右边按钮都是在一个正常状态

self.leftBtn.userInteractionEnabled = YES;

self.rightBtn.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 *preTitle = self.imageNames[index-1];

self.titleLabel.text = preTitle;

self.myImageView.image = [UIImage imageNamed:preTitle];

}

}

-(void)btnClickLister

{

NSLog(@"click btn");

}

-(void)demo {

//    UIView *view =[u]

//    按钮UIButton

//    UIButton *button =[UIButton buttonWithType:UIButtonTypeInfoDark];

UIButton *button = [[UIButton alloc]initWithFrame:CGRectMake(20, 50,80, 80)];

//    frame表明了控件的坐标和宽高（CGRect类型）

//    [button setTitle:@"净意" forState:UIControlStateNormal];

UIImage *image = [UIImage imageNamed:@"left_normal"];

//    根据名字加载图片

[button setBackgroundImage:image forState:UIControlStateNormal];

//    给按钮设置背景图片

//  button.backgroundColor = [UIColor redColor];

//    按钮的监听

[button addTarget:self action:@selector(btnClickLister) forControlEvents:UIControlEventTouchUpInside];

//    添加到视图上面

[self.view addSubview:button];

//相框UIImageView

UIImageView *imageview = [[UIImageView alloc]initWithFrame:CGRectMake(150, 50, 200, 200)];

UIImage *image1 = [UIImage imageNamed:@"biaoqingdi"];

//    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)];

//    设置标签文本

label.text = @"涛哥";

//    设置居中方式

label.textAlignment = NSTextAlignmentCenter;

label.textColor = [UIColor redColor];

[self.view addSubview:label];}

@end