UI基础控件

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/*- - - - - - - - - - - - - - - - -UILabel - - - - - - - - - - - - - - - */

// 创建一个lable
UILabel *lable = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 500)];    
lable.backgroundColor = [UIColor cyanColor];    

// 设置文本内容
lable.text = @"small tiger swzp[;'.]/edxfctgvybhujnikmol,p; dfghjkl;defrgthyjuikl;cvbnm,.fghsdfghjksdfghjklqwertyuiop[,mnbvcxzdfm,x.jhgfdsartyuiol;mnbvcxvbnm,ghfdsyuiopyggggggggggggggggggggDNZSerhijww";

// 设置文本颜色
lable.textColor = [UIColor whiteColor];

// 文本对齐方式
lable.textAlignment = 1;

// 文本字体和大小
lable.font = [UIFont fontWithName:@"Helvetica-Bold" size:20];

// 只设置文本大小
lable.font = [UIFont systemFontOfSize:20];

// 设置显示行数(如果是0, 不限制行数)
lable.numberOfLines = 0;

// 文本断行方式
lable.lineBreakMode = NSLineBreakByTruncatingMiddle;

// 文本阴影颜色
lable.shadowColor = [UIColor blackColor];

// 文本阴影移动
lable.shadowOffset = CGSizeMake(10, 10);

// 自适应文本高度, 与numberOfLines配合使用
[lable sizeToFit];
[self.window addSubview:lable];    
[lable release];

/*- - - - - - - - - - - - - - - - -UITextField - - - - - - - - - - - - - - - -*/

UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(100, 100, 200, 50)];    
textField.backgroundColor = [UIColor cyanColor];    
textField.text = @"Small tiger";   

// textField.textColor = [UIColor grayColor];
textField.textAlignment = 1;
textField.font = [UIFont fontWithName:@"Helvetica-Bold" size:20];

// 占位字符串
textField.placeholder = @"请输入密码: ";

// 是否允许输入

// textField.enabled = NO;

// 开始编辑是清楚内容
textField.clearsOnBeginEditing = YES;

// textField.backgroundColor = [UIColor grayColor];

// 密码模式

// textField.secureTextEntry = YES;

// 键盘类型

// textField.keyboardType = UIKeyboardTypeNumberPad;
// textField.returnKeyType = UIReturnKeySearch;
[self.window addSubview:textField];
[textField release];
UIView *inputView = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];
inputView.backgroundColor = [UIColor grayColor];

// 可以自定义键盘键

// textField.inputView = inputView;

// 做键盘扩展

// textField.inputAccessoryView = inputView;

// 边框样式
textField.borderStyle = UITextBorderStyleRoundedRect;    

// 输入框的清除
textField.clearButtonMode = UITextFieldViewModeAlways;

// 左视图模式
textField.leftViewMode = UITextFieldViewModeAlways;    

// 左视图

textField.leftView = inputView;
// [inputView release];

// 设置代理人
textField.delegate = self;        

// 参数1: 目标
// 参数2: 动作(要执行的方法)
// 参数3: 让目标去执行动作的触发时机(触发事件)
// target-action设计模式
[textField addTarget:self action:@selector(changeEditing:) forControlEvents:UIControlEventEditingChanged];    

/*- - - - - - - - - - - - - - - - -UIButton - - - - - - - - - - - - - - - -*/ 

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];    
button.frame = CGRectMake(0, 100, 414, 200);    
button.backgroundColor = [UIColor grayColor];   
[button setTitle:@"button" forState:UIControlStateNormal];    
[button addTarget:self action:@selector(buttonAction:)

forControlEvents:UIControlEventTouchUpInside];
[self.window addSubview:button];
[button setTitleColor:[UIColor cyanColor] forState:UIControlStateNormal];

// 长按改名

// [button setTitle:@"small tiger" forState:UIControlStateHighlighted];
[button setTitle:@"small tiger" forState:UIControlStateSelected];

// 设置前景图片
[button setImage:[UIImage imageNamed:@"login_btn_blue_nor.png"] forState:UIControlStateNormal];    

// 获取指定状态下的图片
UIImage *image = [button imageForState:UIControlStateNormal];
NSLog(@"%@", image);

// 设置背景图片(常用)
[button setBackgroundImage:[UIImage imageNamed:@"美女

.jpg"] forState:UIControlStateNormal];

// 设置阴影颜色

// [button setTitleShadowColor:[UIColor blackColor] forState:UIControlStateNormal];

/*- - - - - - - - - - - - - - - -UIImageView- - - - - - - - - - - - - -- -*/ 

UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"1_160729154121_4.jpg"]];    
imageView.frame = CGRectMake(100, 100, 200, 200);    
[self.window addSubview:imageView];    
[imageView release];

// 图片数组
NSMutableArray *imageArray = [NSMutableArray array];    
for (int i = 0; i <= 21; i++) {        
    NSString *imageName = [NSString stringWithFormat:@"Zombie%d.tiff", i];
    UIImage *image = [UIImage imageNamed:imageName];      
    [imageArray addObject:image];
}    
imageView.animationImages = imageArray;
imageView.animationDuration = 0.1 * imageArray.count;
imageView.animationRepeatCount = 0;
[imageView startAnimating];

// imageView默认是不能交互(会影响子视图与用户交互, 需要手动开启交互)
imageView.userInteractionEnabled = YES;
return YES;

}

• (void) buttonAction: (UIButton *)button {
  button.selected = !button.selected;
  NSLog(@"button点击了");
  }

• (void)changeEditing: (UITextField *)textFiled {
  NSLog(@"输入内容改变");
  NSLog(@"%@", textFiled.text);
  }

// 将要开始编辑

• (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
  NSLog(@"begin");
  return YES;// 能否开始编辑yes是能, no是不能
  }

// 已经完成编译

• (void)textFieldDidBeginEditing:(UITextField *)textField {
  NSLog(@"did begin");
  }

// 将要完成编辑

• (BOOL)textFieldShouldEndEditing:(UITextField *)textField {
  NSLog(@"end");
  return YES;
  }

// 已经完成编译

• (void)textFieldDidEndEditing:(UITextField *)textField {
  NSLog(@"did end");
  }

// 点击return

• (BOOL)textFieldShouldReturn:(UITextField *)textField {
  NSLog(@"return");
  NSLog(@"%@", textField.text);

// 回收键盘的两种方式
// 放弃第一响应者
// [textField resignFirstResponder];
// 结束编辑状态
[self.window endEditing:YES];
return YES;
}