iOS入门（二十五）基础控件

来源：互联网发布：单片机原理及应用林立编辑：程序博客网时间：2024/05/22 14:22

基础控件

UILable 文本显示

UILabel * view1 = [[UILabel alloc]initWithFrame:CGRectMake(20, 50, 40, 120)];

view1.backgroundColor = [UIColor clearColor]; //背景色

view1.text = @"i love cook";

view1.font = [UIFont fontWithName:@"Helvetica-Bold" size:15];

view1.textColor = [UIColor cyanColor];

view1.shadowColor = [UIColor brownColor]; //文本内容、字体、颜色、阴影颜色（属性）

view1.shadowOffset = CGSizeMake(-8, -6); //阴影偏移量（右，下为正）

view1.textAlignment = NSTextAlignmentCenter; //对齐方式

view1.numberOfLines = 3; //显示行数

view1.lineBreakMode = NSLineBreakByCharWrapping; //换行模式（以单词为单位换行）

[_window addSubview:view1];

[view1 release];

UITextField 单行输入框

UITextField * view3= [[UITextField alloc] initWithFrame:CGRectMake(150, 50, 130, 30)];

view3.delegate = self; //给textField 指定代理人self

[view3 setBackgroundColor:[UIColor clearColor]];

view3.borderStyle = UITextBorderStyleRoundedRect; //边框样式

view3.placeholder= @"手机号/邮箱"; //预置信息

view3.text = @"手机号"; //文本信息、颜色、对齐方式、字体

view3.textColor = [UIColor brownColor];

view3.textAlignment = NSTextAlignmentRight;

view3.font = [UIFont fontWithName:@"Helvetica- Bold" size:20];

view3.clearsOnBeginEditing = YES; //开始输入时是否清空内容

view3.secureTextEntry = NO;//文本输入安全

view3.keyboardType = UIKeyboardTypeDefault; //弹出键盘类型

view3.returnKeyType = UIReturnKeyNext; //右下角return按钮

view3.inputView = [[UIView alloc]initWithFrame:CGRectMake(10, 300, 300, 100)];//自定义输入视图

view3.inputAccessoryView = [[UIView alloc]initWithFrame:CGRectMake(10, 200, 300, 50)]; //输入视图上方的辅助视图，默认nil

view3.clearButtonMode = UITextFieldViewModeAlways; //文本清除按钮

view3.leftView = [[UIView alloc]initWithFrame:CGRectMake(0, 50, 50, 200)];//输入框左右视图

view3.leftViewMode = UITextFieldViewModeAlways;//左右视图显示模式

view3.tag = 3;

[_window addSubview:view3];

[view3 release];

UIButton 按钮

UIButton * view5 = [UIButton buttonWithType:UIButtonTypeCustom];

view5.frame = CGRectMake(20, 150, 80, 30);

view5.backgroundColor = [UIColor clearColor];

[view5 setBackgroundImage:[UIImage imageNamed:@"6.jpg"] forState:UIControlStateNormal];//设置指定状态下地背景图片 setImage为设置前景图片

UIImage * normalimage = [view5 imageForState:UIControlStateNormal];//获取指定状态的前景图片

UIImage * normalbackgroundimage = [view5 backgroundImageForState:UIControlStateNormal];//获取指定状态下的背景图片

[view5 setTitle:@"登陆" forState:UIControlStateNormal]; //按钮改变文本

[view5 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];//文本颜色

// [view5 setTintColor:[UIColor blackColor]];

[view5 setShowsTouchWhenHighlighted:YES]; //闪光否

//按钮的响应事件对象，运行方法，运行状态（按钮按下的时候）

[view5 addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside]; // [self buttonClicked:view5];

[view5 removeTarget:self action:@selector(bundleForClass:) forControlEvents:UIControlEventTouchUpInside];//移除按钮的点击事件

[_window addSubview:view5];

UIAlertView 提醒视图

UIAlertView * alertview = [[UIAlertView alloc]initWithTitle:@"友情提示" message:@"您所拨打的号码已关机~~~" delegate:self cancelButtonTitle:@"智商问题不是你的错~" otherButtonTitles:@"我知道我不该出来~~~", @"陪我去看海吧~~~",nil];

[alertview show];

[alertview release];

delegate

回收键盘

（接受<<span style="color: rgb(71, 59, 255); font-family: 'Microsoft YaHei'; font-size: 13px; line-height: normal; ">UITextFieldDelegate>协议的对象在实现文件中实现）

//-(BOOL)textFieldShouldReturn:(UITextField *)textField

//{

// //取消第一响应者

// //作用：回收键盘

// [textField resignFirstResponder];

// return YES;

//}

alertView响应点击

（接受<<span style="color: rgb(71, 59, 255); font-family: 'Microsoft YaHei'; font-size: 13px; line-height: normal; ">UIAlertViewDelegate>协议的对象在实现文件中实现）

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex

{

NSLog(@"%d",buttonIndex);

}

确定键在右边~~~取消键在左边~~~

//登陆界面

UIButton * view8 = [[UIButton alloc]initWithFrame:CGRectMake(00, 0, 320, 480)];

UIImage * image3 = [UIImage imageNamed:@"20.jpg"];

[view8 setImage:image3 forState:UIControlStateNormal];

[_window addSubview:view8];

UILabel * view1 = [[UILabel alloc]initWithFrame:CGRectMake(20, 50, 100, 30)];

view1.backgroundColor = [UIColor clearColor];

//文本内容、颜色、阴影颜色（属性）

view1.text = @"用户名:";

view1.textColor = [UIColor cyanColor];

view1.shadowColor = [UIColor brownColor];

//阴影偏移量（右，下为正）

view1.shadowOffset = CGSizeMake(-8, -6);

//设置字体

view1.font = [UIFont fontWithName:@"STLiti" size:25];

//对齐方式

view1.textAlignment = NSTextAlignmentCenter;

[_window addSubview:view1];

[view1 release];

UILabel * view2 = [[UILabel alloc] initWithFrame:CGRectMake(20, 100, 100, 30)];

view2.backgroundColor = [UIColor clearColor];

view2.text = @"密码:";

view2.textColor = [UIColor cyanColor];

view2.textAlignment = NSTextAlignmentCenter;

[_window addSubview:view2];

[view2 release];

UITextField * view3= [[UITextField alloc] initWithFrame:CGRectMake(150, 50, 130, 30)];

//给textField 指定代理人self

view3.delegate = self;

[view3 setBackgroundColor:[UIColor clearColor]];

//边框样式

view3.borderStyle = UITextBorderStyleRoundedRect;

//预置信息

view3.placeholder= @"手机号/邮箱";

//文本信息

view3.text = @"手机号";

//开始输入时是否清空内容

view3.clearsOnBeginEditing = YES;

//弹出键盘类型

view3.keyboardType = UIKeyboardTypeDefault;

//文本清除按钮

view3.clearButtonMode = UITextFieldViewModeAlways;

view3.tag = 3;

[_window addSubview:view3];

[view3 release];

UITextField * view4 = [[UITextField alloc]initWithFrame:CGRectMake(150, 100, 130, 30)];

view4.backgroundColor = [UIColor clearColor];

view4.borderStyle = UITextBorderStyleLine;

view4.placeholder = @"请输入密码";

view4.tag = 4;

//文字显示格式

view4.secureTextEntry = YES;

[_window addSubview:view4];

[view4 release];

UIButton * view5 = [UIButton buttonWithType:UIButtonTypeCustom];

view5.frame = CGRectMake(20, 150, 80, 30);

view5.backgroundColor = [UIColor clearColor];

[view5 setBackgroundImage:[UIImage imageNamed:@"6.jpg"] forState:UIControlStateNormal];

//按钮改变文本

[view5 setTitle:@"登陆" forState:UIControlStateNormal];

//文本颜色

[view5 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];

// [view5 setTintColor:[UIColor blackColor]];

//闪光否

[view5 setShowsTouchWhenHighlighted:YES];

//按钮的响应事件对象，运行方法，运行状态（按钮按下的时候）

[view5 addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];

// [self buttonClicked:view5];

[_window addSubview:view5];

UIButton * view6 = [[UIButton alloc]initWithFrame:CGRectMake(120, 150, 80, 30)];

view6.backgroundColor = [UIColor blueColor];

UIImage * image = [UIImage imageNamed:@"79.jpg"];

[view6 setImage:image forState:UIControlStateNormal];

[_window addSubview:view6];

[view6 release];

UIButton* view7 = [[UIButton alloc]initWithFrame:CGRectMake(220, 150, 80, 30)];

view7.backgroundColor = [UIColor blueColor];

UIImage * image2 = [UIImage imageNamed:@"27.jpg"];

[view7 setImage:image2 forState:UIControlStateNormal];

[_window addSubview:view7];

[view7 release];

[self.window makeKeyAndVisible];

return YES;

}

-(void)dealloc

{

[_window release];

[super dealloc];

}

-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField

{

//textfield询问代理人是否开启编辑

return YES;

}

-(BOOL)textFieldShouldReturn:(UITextField *)textField

{

//取消第一响应者

//作用：回收键盘

[textField resignFirstResponder];

return YES;

}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex

{

NSLog(@"%d",buttonIndex);

}

-(void)buttonClicked:(UIButton*)button

{

NSLog(@"登陆成功");

button.backgroundColor = [UIColor blackColor];

//指针强转类型之后进行操作

NSLog(@"%@",[(UITextField *)[_window viewWithTag:4] text]);

// NSLog(@"%@",[(UITextField *)[button . superview viewWithTag:4] text]);

//创建ALertView

// UIAlertView * alertview = [[UIAlertView alloc]initWithTitle:@"友情提示" message:@"您所拨打的号码已关机~~~" delegate:self cancelButtonTitle:@"智商问题不是你的错~" otherButtonTitles:@"我知道我不该出来~~~", @"陪我去看海吧~~~",nil];

// [alertview show];

// [alertview release];

if ([[(UITextField *)[_window viewWithTag:3] text] isEqualToString:@"lanoukeji" ] && [[(UITextField *)[_window viewWithTag:4] text] isEqualToString:@"123456"]) {

UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"欢迎回来~~·" message:@"你终于变聪明啦~~~" delegate:self cancelButtonTitle:@"拜拜" otherButtonTitles:@"同喜同喜",@"酱油打完了~~~",@"咱们下次一起看油菜花~", nil];

[alert show];

[alert release];

}

else{

UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"危险~" message:@"用户名或者密码错误，请核对后再试~~~" delegate:self cancelButtonTitle:@"我真的智商不足~~~呜呜~" otherButtonTitles:@"姐不跟你玩了~拜！", nil];

[alert show];

[alert release]; }

}

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