UITextField

男娘i 2022-08-01 02:51 176阅读 0赞

//
    //  UITextFiledViewController.m
    //  AppUI组件学习
    //
    //  Created by 麦子 on 15/6/17.
    //  Copyright (c) 2015年 麦子. All rights reserved.
    //
    
    #import "UITextFiledViewController.h"
    
    @interface UITextFiledViewController (){
    
        UITextField  *myField;
        UITextField *myfield2;
    }
    
    @end
    
    @implementation UITextFiledViewController
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        self.view.backgroundColor = [UIColor blackColor];
        [self createView:self.view];
    }
    
    
    - (void)createView:(id)uiView{
        UIView *view = (UIView *)uiView;
        UITextField *textFiled = [[UITextField alloc] init];
        textFiled.frame = CGRectMake(20, 80, 300, 100);
        // UITextField 默认颜色是透明的
        textFiled.backgroundColor = [UIColor whiteColor];
        // 设置边框样式
        textFiled.borderStyle = UITextBorderStyleRoundedRect;
        textFiled.borderStyle = UITextBorderStyleLine;
        textFiled.borderStyle = UITextBorderStyleNone;
        textFiled.borderStyle = UITextBorderStyleBezel;
        
        // 设置提示文字
        textFiled.placeholder = @"请输入用户名";
        // 设置密文输入
        textFiled.secureTextEntry = YES;
        // 设置键盘样式
        textFiled.keyboardType = UIKeyboardTypeNumberPad;
        // 设置键盘风格
        textFiled.keyboardAppearance = UIKeyboardAppearanceAlert;
        textFiled.keyboardAppearance = UIKeyboardAppearanceDefault;
        textFiled.keyboardAppearance = UIKeyboardAppearanceDark;
        
        // 设置弹出视图----默认从下面出来，frame是没有用的。
        UIImage *image = [UIImage imageNamed:@"tupian2.jpg"];
        UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
        imageView.frame = CGRectMake(0, 100, image.size.width, image.size.height);
        textFiled.inputView = imageView;
        
        // 设置左视图
        UIView *leftView = [[UIView alloc] init];
        leftView.backgroundColor = [UIColor yellowColor];
        // 这里只有宽度才有效果
        leftView.frame = CGRectMake(0, 0, 100, 100);
        textFiled.leftView = leftView;
    //    // 设置左视图模式
        textFiled.leftViewMode = UITextFieldViewModeAlways;
    //
    //    // 设置又视图
        UIView *rightView = [[UIView alloc] init];
        rightView.backgroundColor = [UIColor yellowColor];
        rightView.frame = CGRectMake(0, 0, 100, 100);
        textFiled.rightView = rightView;
        textFiled.rightViewMode = UITextFieldViewModeAlways;
        
        // 设置清楚按钮模式---默认有个小插图片
        textFiled.clearButtonMode = UITextFieldViewModeAlways;
        
        myField = [[UITextField alloc] init];
        myField.frame = CGRectMake(20, 200, 300, 100);
        myField.borderStyle = UITextBorderStyleRoundedRect;
        myField.backgroundColor = [UIColor whiteColor];
        myField.text = @"设置清楚按钮模式---默认有个小插图片";
        //再次编辑的时候，把原来的数据清空
        myField.clearsOnBeginEditing = YES;
        // 类容纵向对齐方式  还有横巷
    //    myField.contentVerticalAlignment = UIControlContentHorizontalAlignmentLeft;
        myField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
    //    myField.contentVerticalAlignment = UIControlContentVerticalAlignmentTop;
     
        // 文字内容对齐
        myField.textAlignment = NSTextAlignmentLeft;
         // 滚动  -- (默认是滚动)
        myField.adjustsFontSizeToFitWidth = NO;
        // 设置最小字号
        myField.minimumFontSize = 80;
       // 设置首字母大写
        myField.autocapitalizationType = UITextAutocapitalizationTypeAllCharacters;
       // 设置return样式
        myField.returnKeyType = UIReturnKeyGo;
        
        
        // UITextField 协议方式
        myField.delegate =self;
        
        // 点击其他地方收起键盘
        UIControl *myControl = [[UIControl alloc] init];
        myControl.frame = [[UIScreen mainScreen] bounds];
        myControl.backgroundColor = [UIColor redColor];
        [myControl addTarget:self action:@selector(myControlClick) forControlEvents:UIControlEventTouchUpInside];
        
        
        // 处理，当键盘收起或者是出现的时候，组件进行下移或者上移的功能实现
        myfield2 = [[UITextField alloc] init];
        myfield2.frame = CGRectMake(20, 500, 300, 100);
        myfield2.backgroundColor = [UIColor whiteColor];
        myfield2.borderStyle = UITextBorderStyleRoundedRect;
        // 键盘出现和收到的系统通知
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyWillShow) name:UIKeyboardDidShowNotification object:nil];
        
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyWillHide) name:UIKeyboardDidHideNotification object:nil];
        
        
        [view addSubview:myfield2];
        [view addSubview:myField];
        [view addSubview:textFiled];
        [view addSubview:myControl];
        [view sendSubviewToBack:myControl]; // 放在最下一层，事件也是有传导性的。 也有事件拦截（预测）
    
    }
    
    - (void)keyWillShow{
       
        [UIView animateWithDuration:0.25 animations:^{
           myfield2.frame = CGRectMake(20, 350, 300, 30);
        } completion:^(BOOL finished) {
            
        }];
    
    }
    
    - (void)keyWillHide{
    
       [UIView animateWithDuration:0.25 animations:^{
           myfield2.frame = CGRectMake(20, 500, 300, 100);
    
       } completion:^(BOOL finished) {
           
       }];
    
    }
    
    
    - (void)myControlClick{
        NSLog(@"myControlClick");
        [myField resignFirstResponder];
        [myfield2 resignFirstResponder];
    }
    
    
    // 是否进入编辑模式 ，默认是YES
    - (BOOL)textFieldShouldBeginEditing:(UITextField *)textField{
    
        return YES;
    }
    
    // 进入编辑模式
    - (void)textFieldDidBeginEditing:(UITextField *)textField{
    
        NSLog(@"进入编辑模式");
    }
    
    // 是否可以退出编辑模式，默认是YES
    - (BOOL)textFieldShouldEndEditing:(UITextField *)textField{
        return YES;
    }
    
    // 退出编辑模式
    - (void)textFieldDidEndEditing:(UITextField *)textField{
    
        NSLog(@"退出编辑模式");
    }
    
    // 是否能够进行修改
    - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{
    
        return YES;
    }
    
    // 是否可以点击清除按钮， 默认是YES
    - (BOOL)textFieldShouldClear:(UITextField *)textField{
        return YES;
    }
    
    // 是否可以点击return键
    - (BOOL)textFieldShouldReturn:(UITextField *)textField{
    
        // 收键盘
        [textField resignFirstResponder];
        
        return YES;
    }
    
    @end