一、九宫格
1.1 ****方法****1 ****只能创建（****ij****）个对象*
#define WINDOW_WIDTH self.window.bounds.size.width
#define WINDOW_HEIGHT self.window.bounds.size.height
#define IMAGE_WIDTH 60
#define IMAGE_HEIGHT 60
#import "AppDelegate.h"
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
//1.根据屏幕宽高，计算行间距、列间距
float rowSpace = (WINDOW_HEIGHT - 3 * 60) / 4;
float colSpace = (WINDOW_WIDTH - 3 * 60) / 4;
for (int i = 0 ; i < 3; i++)
{
float y = rowSpace + i * (rowSpace + IMAGE_HEIGHT);
for (int j = 0; j < 3; j++)
{
float x = colSpace + j * (colSpace + IMAGE_WIDTH);
UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(x, y, IMAGE_WIDTH, IMAGE_HEIGHT)];
imageView.backgroundColor = [UIColor redColor];
[self.window addSubview:imageView];
}
}
return YES;
}
1.2 ****方法****2 ****创建任意个对象
#define SCREEN_WIDTH [[UIScreen mainScreen]bounds].size.width
#define SCREEN_HEIGHT [[UIScreen mainScreen]bounds].size.height
#define IMAGE_WIDTH 60
#define IMAGE_HEIGHT 60
#import "AppDelegate.h"
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
//1.求行间距、列间距
float rowSpace = (SCREEN_HEIGHT - 3 * IMAGE_HEIGHT)/4;
float colSpace = (SCREEN_WIDTH - 3 * IMAGE_WIDTH)/4;
//2.for循环
//a：要创建的对象数
for (int a = 0; a < 8; a++)
{
//1.计算行号和列号。注意：3代表多少列
//1.1 行号：对3求整
int i = a/3;
//1.2 列号：对3求余
int j = a%3;
//2.计算x，y坐标
float x = colSpace + j * (colSpace + IMAGE_WIDTH);
float y = rowSpace + i * (rowSpace + IMAGE_HEIGHT);
//3.创建图片
UIImageView *imgView = [[UIImageView alloc]initWithFrame:CGRectMake(x, y, IMAGE_WIDTH, IMAGE_HEIGHT)];
imgView.backgroundColor = [UIColor blueColor];
[self.window addSubview:imgView];
}
return YES;
}
2.****创建****Tom****猫按钮
2.1 主函数
//1.添加图片视图，展示背景图片，同时实现帧动画效果
_catImgView = [[UIImageView alloc]initWithFrame:self.window.frame];
_catImgView.image = [UIImage imageNamed:@"angry_01.jpg"];
[self.window addSubview:_catImgView];
//2.将按钮的图片名字、图片数量，存放到数组中
_btnImgNameArray = [[NSArray alloc]initWithObjects:@"cymbal",@"drink",@"eat",@"fart",@"pie",@"scratch", nil];
_numberArry = [[NSArray alloc]initWithObjects:@"13",@"81",@"40",@"28",@"24",@"56", nil];
//3.创建6个点击按钮
for (int a = 0; a < 6; a++)
{
//1.列号 对2求余
int i = a%2;
float x = 0;
//3目运算符，与下面if.else语句一样
// float x = (i == 0) ? 30 : 230;
if (i == 0)
{
x = 30;
}
else
{
x = 230;
}
//行号
int j = a/2;
float y = 0;
y = 240 + j * (ROW_SPACE + BUTTON_HEIGHT);
//根据索引值(a)取出图片名字
NSString *name = [_btnImgNameArray objectAtIndex:a];
//创建按钮
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(x, y, BUTTON_WIDTH, BUTTON_HEIGHT);
[button setImage:[UIImage imageNamed:name] forState:UIControlStateNormal];
[button addTarget:self action:@selector(animationClick:) forControlEvents:UIControlEventTouchUpInside];
button.tag = a;
[self.window addSubview:button];
}
return YES;
2.2 ****代码封装
//将重复性的代码封装为方法
//参数：
//1.图片名
//2.图片数量
- (void)tomAnimationWithImageName:(NSString *)imageName number:(int)number
{
if (_catImgView.isAnimating == YES)
{
return;
}
NSMutableArray *imgArray = [[NSMutableArray alloc]init];
for (int i = 0; i < number; i++)
{
NSString *name = [NSString stringWithFormat:@"%@_%02d.jpg",imageName,i];
UIImage *image = [UIImage imageNamed:name];
[imgArray addObject:image];
}
_catImgView.animationDuration = 0.1 * imgArray.count;
_catImgView.animationImages = imgArray;
_catImgView.animationRepeatCount = 1;
[_catImgView startAnimating];
}
//点击按钮，创建图片数组，实现三个属性、一个方法
- (void)animationClick:(UIButton *)button
{
//方法1
NSString *name = [_btnImgNameArray objectAtIndex:button.tag];
NSString *numStr =[_numberArry objectAtIndex:button.tag];
int num = [numStr intValue];
[self tomAnimationWithImageName:name number:num];
}
1.****屏幕宽高，按钮宽高
2.
**x = colSpace + i * ****（****colSpace + width****）**
**y = rowSpace + j * ****（****rowSpace + height****）**
1.用定时器，制作一个椭圆运动效果
a.中点坐标
b.根据半径求园坐标
宏定义：中点坐标x/y，半径，
2.雪花下落，多片
