ViewController.h
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController
//设置成员变量
//成员变量和属性的区别:成员属于私有;属性属于共有;
{
UIView * _aboveView;
UIView * _downView;
}
@property (nonatomic,retain)NSMutableArray * aboveArray;//保存上面视图显示的按钮的名字,存储类型为NSString
@property (nonatomic,retain)NSMutableArray * downArray;//保存下面视图显示的按钮的名字,存储类型为NSString
@endViewController.m
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)dealloc
{
[_aboveArray release];
[_downArray release];
_aboveArray = nil;
_downArray = nil;
[super dealloc];
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
self.aboveArray = [NSMutableArray array];
self.downArray = [NSMutableArray array];
[_downArray addObject:@"啊啊"];
[_downArray addObject:@"呵呵"];
[_downArray addObject:@"哈哈"];
[_downArray addObject:@"吼吼"];
[_downArray addObject:@"嘻嘻"];
[_downArray addObject:@"嘿嘿"];
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
[self createAboveView];
[self createAboveButton];
[self createDownView];
[self createDownButton];
}
//创建上边视图,用来显示点击后的按钮的内容
- (void)createAboveView
{
//创建一个视图叫做aboveView
_aboveView = [[UIView alloc]initWithFrame:CGRectMake(0, 20, 320, (self.view.frame.size.height - 20.0)/2.0)];//上边栏会遮挡状态栏,所以要下移点儿y=20;
[_aboveView setBackgroundColor:[UIColor purpleColor]];
[self.view addSubview:_aboveView];
[_aboveView release];
}
//创建按钮,放在上面所创建的视图aboveView上
- (void)createAboveButton
{
//将aboveView的所有子视图从父视图上移除掉
for (UIView * aView1 in [_aboveView subviews]) {
[aView1 removeFromSuperview];
}
//获得aboveArray数组内容的个数,用来创建有多少个按钮添加在aboveView上面
int count = [self.aboveArray count];
for (int i = 0; i < count ; i++) {
//获得X轴的坐标,因为每行显示三个按钮,所以应该通过i%3来获得余数,得到余数再乘以每个按钮的宽度与间距10的和,最后添加10为最初的与边框的间距位置
CGFloat x = (i%3)*80 + 10;
//获得Y轴的坐标,因为每行最多三个按钮;
CGFloat y = (i/3)*50;
UIButton * button = [[UIButton alloc]initWithFrame:CGRectMake(x, y, 70, 40)];
//i为数组里面相对应的字符串的下标,通过下标取得相对应数组里面的字符串.
NSString * name = [self.aboveArray objectAtIndex:i];
[button setTitle:name forState:UIControlStateNormal];
[button addTarget:self action:@selector(aboveAction:) forControlEvents:UIControlEventTouchUpInside];
[_aboveView addSubview:button];
[button release];
}
}
//创建下边视图,用来显示点击后的按钮的内容
- (void)createDownView
{
//创建一个视图叫做downView
_downView = [[UIView alloc]initWithFrame:CGRectMake(0, (self.view.frame.size.height- 20)/2.0+20, 320, (self.view.frame.size.height - 20.0)/2.0)];
[_downView setBackgroundColor:[UIColor blueColor]];
[self.view addSubview:_downView];
[_downView release];
}
//创建按钮,放在上面所创建的视图downView上
- (void)createDownButton
{
//将downView的所有子视图从父视图上移除掉
for (UIView * aView in [_downView subviews]) {
[aView removeFromSuperview];
}
//获得downArray数组内容的个数,用来创建有多少个按钮添加在downView上面
int count1 = [self.downArray count];
for (int i = 0; i < count1 ; i++) {
//获得X轴的坐标,因为每行显示三个按钮,所以应该通过i%3来获得余数,得到余数再乘以每个按钮的宽度与间距10的和,最后添加10为最初的与边框的间距位置
CGFloat x = (i%3)*80 + 10;
//获得Y轴的坐标,因为每行最多三个按钮;
CGFloat y = (i/3)*50;
UIButton * button1 = [[UIButton alloc]initWithFrame:CGRectMake(x, y, 70, 40)];
//i为数组里面相对应的字符串的下标,通过下标取得相对应数组里面的字符串.
NSString * name1 = [self.downArray objectAtIndex:i];
[button1 setTitle:name1 forState:UIControlStateNormal];
[button1 addTarget:self action:@selector(downAction:) forControlEvents:UIControlEventTouchUpInside];
[_downView addSubview:button1];
[button1 release];
}
}
//创建一个按钮的响应事件,让按钮上去
- (void)downAction:(id)sender
{
UIButton * button1 = (UIButton *)sender;//强转(UIButton *)
NSString * name = button1.currentTitle;
//根据名字获得其在数组中的下标
NSInteger index = [self.downArray indexOfObject:name];
//将名字从数组中删除
[self.downArray removeObjectAtIndex:index];
//将名字放到上面的aboveArray的数组中
[self.aboveArray addObject:name];
[self createDownButton];
[self createAboveButton];
}
//创建一个按钮的响应事件,让按钮下去
- (void)aboveAction:(id)sender
{
UIButton * button1 = (UIButton *)sender;//强转(UIButton *)
NSString * name = button1.currentTitle;
//根据名字获得其在数组中的下标
NSInteger index = [self.aboveArray indexOfObject:name];
//将名字从数组中删除
[self.aboveArray removeObjectAtIndex:index];
//将名字放到上面的downArray的数组中
[self.downArray addObject:name];
[self createDownButton];
[self createAboveButton];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
