//
// ViewController.m
// UIView
//
// Created by sougu on 2017/3/13.
// Copyright © 2017年 NextXavier. All rights reserved.
#import "ViewController.h"
@interface ViewController ()
@property (nonatomic,strong) UIView *mainView;
@property (nonatomic,strong) UIView *subView;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//1、创建
self.mainView = [[UIView alloc] init];
//2、设置frame
CGFloat viewX = 20;
CGFloat viewY = 70;
CGFloat viewW = 200;
CGFloat viewH = 200;
_mainView.frame = CGRectMake(viewX, viewY, viewW, viewH);
//3、设置背景色
_mainView.backgroundColor = [UIColor blueColor];
//4、添加视图
[self.view addSubview:_mainView];
[self creatBtn];
}
// 创建 UIButton
- (void)creatBtn{
//1、创建数组
NSArray *title_arry = [NSArray arrayWithObjects:@"添加",@"隐藏",@"移除", nil];
int indext = 0;
for (int i = 0; i<title_arry.count; i++) {
//2、创建按钮
UIButton *select_btn = [UIButton buttonWithType:UIButtonTypeCustom];
//3、设置按钮 frame
CGFloat btnX = 20;
CGFloat btnY = 20;
CGFloat btnW = (self.view.frame.size.width - 20*4) / 3;
CGFloat btnH = 30;
select_btn.frame = CGRectMake(btnX + i * (btnX + btnW), btnY, btnW, btnH);
//4、按钮赋 tag
select_btn.tag = i + 100;
//5、设置按钮边框粗细与颜色
select_btn.layer.borderWidth = 0.5;
select_btn.layer.borderColor = [UIColor blueColor].CGColor;
//6、设置按钮标题和颜色
[select_btn setTitle:[title_arry objectAtIndex:indext++] forState:UIControlStateNormal];
[select_btn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[self.view addSubview:select_btn];
//7、添加事件
[select_btn addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];
}
}
//点击事件
- (void)click:(UIButton *)sender{
switch (sender.tag) {
case 100:
[self creatView];
break;
case 101:
[self hideView];
break;
case 102:
[self removeView];
break;
default:
break;
}
}
//添加
- (void)creatView{
//1、创建
self.subView = [[UIView alloc] init];
//2、设置frame
CGFloat viewX = 50;
CGFloat viewY = 50;
CGFloat viewW = 100;
CGFloat viewH = 100;
_subView.frame = CGRectMake(viewX, viewY, viewW, viewH);
//3、设置背景色
_subView.backgroundColor = [UIColor yellowColor];
//4、添加视图
[self.mainView addSubview:_subView];
}
//隐藏
- (void)hideView{
//第一种：
//[self.subView setHidden:YES];
//第二种：
self.subView.hidden = YES;
}
//移除
- (void)removeView{
[self.subView removeFromSuperview];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end