UIButton, UILabel, UITextField

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor brownColor];
[self.window makeKeyAndVisible];

/*
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];
view.backgroundColor = [UIColor whiteColor];
view.hidden = NO;
view.alpha = 1;
view.clipsToBounds = NO;
//    view.superview
//    view.subviews
view.frame = CGRectMake(100, 200, 300, 400);
view.center = CGPointMake(100, 100);
view.bounds = CGRectMake(0, 0, 300, 400);
view.layer.cornerRadius = 50;
[self.window addSubview:view];
*/

//UILabel, 标签视图, 用于显示文字, 继承于UIView
label = [[UILabel alloc] initWithFrame:CGRectMake(20, 100, 335, 40)];//对称
label.backgroundColor = [UIColor whiteColor];
//设置文本
label.text = @"joner , goog moring, you are good!"; //cmd + ctrl + 空格(添加表情)
//设置对齐方式, 默认是左对齐
label.textAlignment = NSTextAlignmentCenter;
//文本颜色, 默认为黑色
label.textColor = [UIColor redColor];
//行数,默认为1, 首先要改标签视图高度; 0,代表自动匹配
label.numberOfLines = 0;
//字体(样式和大小), 默认为17
UIFont *font1 = [UIFont systemFontOfSize:20];
//加粗(注:后面的数值是字体大小)
UIFont *font2 = [UIFont boldSystemFontOfSize:40];
//斜体
UIFont *font3 = [UIFont italicSystemFontOfSize:30];
UIFont *font4 = [UIFont fontWithName:@"Heiti SC" size:30];
NSLog(@"%@", [UIFont familyNames]);
label.font = font3;
//文字的阴影
label.shadowColor = [UIColor colorWithRed:0 green:1 blue:0 alpha:0.2];
label.shadowColor = [UIColor blueColor];
//文字阴影偏移量, 默认(0, -1)
label.shadowOffset = CGSizeMake(0, -5);
//换行模式(英文用的居多)
label.lineBreakMode = NSLineBreakByCharWrapping ; //直接点击cmd ,进入查看

//同理
label.tag = 102;

[self.window addSubview:label];
[label release];//但在ARC, 编译器释放

//UITextField, 单行文本输入框, 继承于UIContrl
textField1 = [[UITextField alloc] initWithFrame:CGRectMake(20, 160, 335, 40)];
//    textField.backgroundColor = [UIColor whiteColor];
//文本
//    textField.text = @"辉哥真帅";
//占位符(提示)
textField1.placeholder = @"请输入口令";//不写内容就会出来
//文字颜色
textField1.textColor = [UIColor blueColor];
//字体
textField1.font = [UIFont systemFontOfSize:35];
//边框样式
textField1.borderStyle = UITextBorderStyleRoundedRect; //圆角样式: 默认为白色, 就算注释了文本框, 圆角样式: 他会自动生成
//对齐方式
textField1.textAlignment =NSTextAlignmentLeft;
//是否可用(无法写入)
textField1.enabled = YES;
//是否安全输入(密码, 变星号)
textField1.secureTextEntry = NO;
//换行键样式
textField1.returnKeyType = UIReturnKeySearch;
//代理
textField1.delegate = self;//确定关系
//弹出键盘的类型
textField1.keyboardType = UIKeyboardTypeNumberPad;
//设置一个标签值
textField1.tag = 101; //(要写到100以上, 100以下, 系统可能在用)
[self.window addSubview:textField1];
[textField1 release];
UIControl
//UIButton, 按钮类, 继承于UIControl
UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem]; //便利构造器(不需要释放); 渲染色系统自带为蓝色
button.frame = CGRectMake(20, 220, 335, 40);
button.backgroundColor = [UIColor greenColor];
//1 设置对应状态下的标题
[button setTitle:@"按住说话" forState:UIControlStateNormal];// 正常情况, 就用normal
[button setTitle:@"松开结束" forState:UIControlStateHighlighted];// 正常情况, 就用normal
//    [button setTitle:@"好幸运, 被翻到了" forState:UIControlStateSelected];// 配合  button.selected = YES;
//    [button setTitle:@"你是不是有别人了" forState:UIControlStateDisabled];// 配合 button.enabled = NO;
//是否选中
//    button.selected = YES;
//是否可用
//    button.enabled = NO;
//渲染色 tintColor
button.tintColor = [UIColor redColor];

//2 设置某个状态下的显示图片
//注意: 如果需要显示图片, 要去掉渲染色, 使用UIButtonTypeCustom
UIImage *image = [UIImage imageNamed:@"abc.png"]; //图片如果是png, 可以省略后缀, 其他类型, 必须加上后缀
//    [button setImage:image forState:UIControlStateNormal];
//注: title 和 image 是在同一层的, 如果图片过大, 就会把标题挤走.(setImage)
//3 图片作为背景色
[ button setBackgroundImage:image forState:UIControlStateNormal];
//button是复合视图, button上有一个用于展示文字的titleLable, 可以修改相关属性
//    button.titleLabel.textColor = [UIColor blueColor];
//4 设置执行状态下的标题颜色
[button setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
//注: 修改button的title, titleColor, image, backgroundImage
//点击button, 触发某些方法
//1. 方法执行者
//2.方法名
//3.方法触发的时刻
[button addTarget:self action:@selector(pressButton) forControlEvents:UIControlEventTouchUpInside ];

//UIImageView, 用于显示图片, 继承于UIView
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"1"]];
imageView.frame = CGRectMake(37.5, 280, 300, 300);
NSMutableArray *images = [NSMutableArray arrayWithCapacity:4];
for (NSInteger i = 1; i <= 4; i++) {
NSString *name = [NSString stringWithFormat:@"%ld", i];
UIImage *image = [UIImage imageNamed:name];
[images addObject:image];
}
//设置动画数组
imageView.animationImages = images;
//设置动画时间
imageView.animationDuration = 0.5;
//    imageView.animationRepeatCount = 3;//(3轮就停止)
[self.window addSubview:imageView];
[imageView release];

//动起来
[imageView startAnimating];

//停止动画
//    [imageView stopAnimating];

[self.window addSubview:button];
return YES;
}

- (void)pressButton {
NSLog(@"点击了按钮");
//1.扩大作用域(写成实例变量)
//注:
NSLog(@"%@", textField1.text); //打印到后台; text 表示文本
label.text = textField1.text;
//2. 通过tag值(多个相同视图)
//做强制转换
UITextField *tf = (UITextField *)[self.window viewWithTag:101];
NSLog(@"%@", tf.text);
UILabel *la = (UILabel *)[self.window viewWithTag:102];
NSLog(@"%@", la.text);
la.text = tf.text;
}