self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
//创建左视图的label
UILabel *leftLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 60, 30)];
leftLabel.text = @"用户名";
leftLabel.backgroundColor = [UIColor cyanColor];
leftLabel.textAlignment = NSTextAlignmentCenter;
//输入框
//1,申请空间
UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(60, 100, 200, 30)];
//2,设置属性
textField.tag = 1001;
textField.borderStyle = UITextBorderStyleRoundedRect;//样式
//textField.text = @"输入"; //默认输入
// textField.placeholder = @"在此输入...";//输入提示
textField.textAlignment = NSTextAlignmentCenter;//居中
// textField.secureTextEntry = YES; //安全输入
textField.keyboardType = UIKeyboardTypeEmailAddress;//键盘样式
textField.returnKeyType = UIReturnKeySearch;//键盘返回
textField.textColor = [UIColor redColor]; //字体颜色
textField.clearsOnBeginEditing = YES; //输入时清空，（密码）
textField.clearButtonMode = UITextFieldViewModeWhileEditing;//编辑
textField.delegate = self; //设置代理 当前self代表appdelegate
textField.leftView = leftLabel;//左视图
textField.leftViewMode = UITextFieldViewModeAlways;//左视图样式
[leftLabel release];
//3,添加
[_window addSubview:textField];
//4,释放
[textField release];
//按钮
//静态方法创建，不需要是释放
UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
//属性
button.frame = CGRectMake(50, 200, 80, 30);
[button setTitle:@"提交" forState:UIControlStateNormal];//显示文字
[button setTitle:@"哇" forState:UIControlStateHighlighted];//显示文字
[button setBackgroundImage:[UIImage imageNamed:@"1.jpg"] forState:UIControlStateNormal];
//[button setBackgroundColor:[UIColor greenColor]];
//绑定事件
[button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
//移除事件
[_window addSubview:button];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(60, 50, 150, 30)];
[_window addSubview:label];
[label release];
return YES;
}
- (void)buttonAction:(UIButton *)sender
{
NSLog(@"不要点我");
//通过tag 取出视图
UITextField *textFiled = (UITextField *)[_window viewWithTag:1001];
NSLog(@"%@",textFiled.text);
//sender.backgroundColor = [UIColor redColor];
}
#pragma mark - UITextFieldDelegate
//已经开始编辑
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
NSLog(@"已经开始编辑");
}
//已经结束编辑
- (void)textFieldDidEndEditing:(UITextField *)textField
{
NSLog(@"已经结束编辑");
}
//按下return
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
NSLog(@"按下return");
//释放输入框 第一相应者
[textField resignFirstResponder];
return YES;
}
//监听文本框值的改变
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
return YES;
}
IOS--UITextFiled的使用方法详细
// UITextField的常用方法
UITextField *oneTextField = [[UITextField alloc] init];
// 最常用
oneTextField.frame = CGRectMake(30, 30, 260, 35); // 设置位置
oneTextField.backgroundColor = [UIColor grayColor]; // 设置背景颜色
oneTextField.alpha = 1.0; // 设置透明度，范围从0.0-1.0之间
oneTextField.textColor = [UIColor redColor]; // 设置文字的颜色
oneTextField.text = @"默认的文字"; // 设置默认的文字
oneTextField.placeholder = @"这是提示文字"; // 显示提示文件，当输入文字时将自动消失
oneTextField.font = [UIFont boldSystemFontOfSize:25.0f]; // 设置字体的大小
oneTextField.textAlignment = NSTextAlignmentCenter; // 设置文字的对其方式
// 对其的样式如下
// typedef NS_ENUM(NSInteger, NSTextAlignment) {
// NSTextAlignmentLeft = 0, // Visually left aligned
//#if TARGET_OS_IPHONE
// NSTextAlignmentCenter = 1, // Visually centered
// NSTextAlignmentRight = 2, // Visually right aligned
//#else
// NSTextAlignmentRight = 1, // Visually right aligned
// NSTextAlignmentCenter = 2, // Visually centered
//#endif
// NSTextAlignmentJustified = 3, // Fully-justified. The last line in a paragraph is natural-aligned.
// NSTextAlignmentNatural = 4, // Indicates the default alignment for script
// } NS_ENUM_AVAILABLE_IOS(6_0);
// 设置oneTextField的样式
oneTextField.borderStyle = UITextBorderStyleRoundedRect; // 设置oneTextField的样式
oneTextField.clearsOnBeginEditing = YES; // 再次编辑就清空原有的内容
oneTextField.minimumFontSize = 20.0f; // 设置自动缩小显示的最小字体大小
oneTextField.tag = 10001; // 设置oneTextField的标签，主要用在委托方法中
oneTextField.secureTextEntry = NO; // 设置是否以密码的圆点形式显示
oneTextField.autocorrectionType = YES; // 设置是否启动自动提醒更新功能
oneTextField.returnKeyType = UIReturnKeyDefault; // 设置弹出的键盘带形式与带的按键
// 以下是弹出的键盘的带按钮的全部样式
// typedef NS_ENUM(NSInteger, UIReturnKeyType) {
// UIReturnKeyDefault, // 默认的样式
// UIReturnKeyGo, // 带一个go按钮
// UIReturnKeyGoogle, // 带一个Search按钮，使用google搜索
// UIReturnKeyJoin, // 带一个Join按钮，登录时使用
// UIReturnKeyNext, // 带一个Next按钮，进入下一个输入框
// UIReturnKeyRoute, // 带一个Route按钮
// UIReturnKeySearch, // 带一个Search按钮
// UIReturnKeySend, // 带一个Send按钮
// UIReturnKeyYahoo, // 带一个Search，使用yahoo搜索
// UIReturnKeyDone, // 带一个Done按钮
// UIReturnKeyEmergencyCall, // 带一个emergency call按钮
// };
oneTextField.keyboardType = UIKeyboardTypeNamePhonePad; // 弹出的键盘的样式
// 以下是所有弹出的键盘的样式
// typedef NS_ENUM(NSInteger, UIKeyboardType) {
// UIKeyboardTypeDefault, // Default type for the current input method.
// UIKeyboardTypeASCIICapable, // Displays a keyboard which can enter ASCII characters, non-ASCII keyboards remain active
// UIKeyboardTypeNumbersAndPunctuation, // Numbers and assorted punctuation.
// UIKeyboardTypeURL, // A type optimized for URL entry (shows . / .com prominently).
// UIKeyboardTypeNumberPad, // A number pad (0-9). Suitable for PIN entry.
// UIKeyboardTypePhonePad, // A phone pad (1-9, *, 0, #, with letters under the numbers).
// UIKeyboardTypeNamePhonePad, // A type optimized for entering a person's name or phone number.
// UIKeyboardTypeEmailAddress, // A type optimized for multiple email address entry (shows space @ . prominently).
//#if __IPHONE_4_1 <= __IPHONE_OS_VERSION_MAX_ALLOWED
// UIKeyboardTypeDecimalPad, // A number pad with a decimal point.
//#endif
//#if __IPHONE_5_0 <= __IPHONE_OS_VERSION_MAX_ALLOWED
// UIKeyboardTypeTwitter, // A type optimized for twitter text entry (easy access to @ #)
//#endif
//
// UIKeyboardTypeAlphabet = UIKeyboardTypeASCIICapable, // Deprecated
//
// };
oneTextField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter; // 输入的对其方法
oneTextField.autoresizingMask = UIViewAutoresizingFlexibleHeight; // 自动适应高度
oneTextField.clearButtonMode = UITextFieldViewModeWhileEditing; // 编辑的时候会显示出删除全部的小X
// 出现删除全部小X的时间
// typedef enum {
// UITextFieldViewModeNever // 重不出现
// UITextFieldViewModeWhileEditing, // 编辑时出现
// UITextFieldViewModeUnlessEditing, // 除了编辑外都出现
// UITextFieldViewModeAlways // 一直出现
// } UITextFieldViewMode;
//首字母是否大写
oneTextField.autocapitalizationType = UITextAutocapitalizationTypeNone;
// 以下是字母大写的几种情况
// typedef enum {
// UITextAutocapitalizationTypeNone, // 不自动大写
// UITextAutocapitalizationTypeWords, // 单词首字母大写
// UITextAutocapitalizationTypeSentences, // 句子的首字母大写
// UITextAutocapitalizationTypeAllCharacters, // 所有字母都大写
// } UITextAutocapitalizationType;
//键盘外观
oneTextField.keyboardAppearance=UIKeyboardAppearanceAlert;
// typedef enum {
// UIKeyboardAppearanceDefault， // 默认外观，浅灰色
// UIKeyboardAppearanceAlert， // 深灰 石墨色
// } UIReturnKeyType;
//最右侧加图片是以下代码 左侧类似
UIImageView *image=[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"ic_action_stat_share.png"]];
// oneTextField.rightView = image;
// oneTextField.rightViewMode = UITextFieldViewModeAlways;
oneTextField.leftView = image;
oneTextField.leftViewMode = UITextFieldViewModeAlways;
// typedef enum {
// UITextFieldViewModeNever,
// UITextFieldViewModeWhileEditing,
// UITextFieldViewModeUnlessEditing,
// UITextFieldViewModeAlways
// } UITextFieldViewMode;
// 要想设置委托，就需要实现协议，需要在.h文件中添加协议
oneTextField.delegate = self; // 设置委托
// 添加到view上，并释放内存
[self.view addSubview:oneTextField];
[oneTextField release], oneTextField = nil;
//当开始点击textField会调用的方法
-(void)textFieldDidBeginEditing:(UITextField *)textField {
NSLog(@"开始编辑");
}
//当textField编辑结束时调用的方法
-(void)textFieldDidEndEditing:(UITextField *)textField {
NSLog(@"结束编辑");
}
//按下Done按钮的调用方法，我们让键盘消失
-(BOOL)textFieldShouldReturn:(UITextField *)textField{
[textField resignFirstResponder];
return YES;
}