2015_6_遇到的各种坑

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RGB颜色转换

#define kUIColorFromRGB(rgbValue) [UIColor \

colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \

green:((float)((rgbValue & 0xFF00) >> 8))/255.0 \

blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]

vfl（简单实现）以及pickview的选中行高度(没找到)

cgfloat存id

[metrics setValue:[NSNumber numberWithFloat:SCREEN_HEIGHT] forKey:@"screenHiht"];

 2015/6/11

导航下加载表，单元格向下偏移

self.automaticallyAdjustsScrollViewInsets = NO;

   2015/6/12

todo:

setting页面加上和密保问题页面的pick view

侧边栏加上leftbarbtn图案

所有表的选种状态 设置为空 done

边框颜色

_textView.layer.borderColor = UIColor.grayColor.CGColor;  

_textView.layer.borderWidth = 1;   

_textView.layer.cornerRadius = 6;  

_textView.layer.masksToBounds = YES;

   2014/6/12

  各种弹窗 ！！

  反馈页面 提交失败 本地存储

  反馈页面 提交按钮增加判断

  pickview改显示内容行数

2014/6/15

1.密保弹窗 pickview修改  和 密保问题设置页面一样

2.闪屏

3.有reset a password  -> Reset   

    有Password setting  -> Passcode

Release finger after finished

2045/6/18

判断邮箱格式是否正确的代码

-(BOOL)isValidateEmail:(NSString *)email

{

NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";

NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES%@",emailRegex];

return [emailTest evaluateWithObject:email];

}

对于输入框为空及输入参数只有空格的判断 ios

nilifreturntrue;

elseNSCharacterSetNSCharacterSet whitespaceAndNewlineCharacterSet];

NSStringstringByTrimmingCharactersInSet:set];

iflength0returntrue;

elsereturnfalse;

        }

    }

2015/6/23 导航栏 状态栏高度

// 状态栏(statusbar)  

CGRect rectStatus = [[UIApplication sharedApplication] statusBarFrame];  

NSLog(@"status width - %f", rectStatus.size.width); // 宽度  

NSLog(@"status height - %f", rectStatus.size.height);   // 高度  

// 导航栏（navigationbar）  

CGRect rectNav = self.navigationController.navigationBar.frame;  

NSLog(@"nav width - %f", rectNav.size.width); // 宽度  

NSLog(@"nav height - %f", rectNav.size.height);   // 高度

2015/6/24

#import <UIKit/UIKit.h>

@interface NonCopyPasteField : UITextField

@end

—llll  13:59:21

#import "NonCopyPasteField.h"

@implementation NonCopyPasteField

-(BOOL)canPerformAction:(SEL)action withSender:(id)sender

{

    [[NSOperationQueue mainQueue] addOperationWithBlock:^{

        [[UIMenuController sharedMenuController] setMenuVisible:NO animated:NO];

    }];

    return [super canPerformAction:action withSender:sender];

}

@end

—llll  13:59:31

text 禁止复制

2015/6/27

//触屏响应事件

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

{

    NSLog(@"开始触摸");

}

// Moved 移动

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event

{

    //    NSLog(@"拖拽触摸");

    //首先把屏幕上所有的事件转换成触摸

    UITouch *touch =[touches anyObject];

    //从self.view上接受触摸焦点

    CGPoint point =[touch locationInView:self.view];

    //判断一下交互，确保点到Btnframe时才能让其选中

    if (CGRectContainsPoint(btn.frame, point))

    {

        //改变btn状态，变为选中

    }

}

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event

{

    NSLog(@"结束触摸");

｝//效果不好

215/6/29

//从字符串分割到数组－ componentsSeparatedByString:

NSString *string = [[NSString alloc] initWithString:@"One,Two,Three,Four"];

NSLog(@"string:%@",string);

NSArray *array = [string componentsSeparatedByString:@","];

NSLog(@"array:%@",array);

2015/7/2  滑动手势 改变透明度

-(void) handlePanGesture:(UIPanGestureRecognizer *) sender {

    CGFloat alpha = _lifeView.alpha - ([sender translationInView: [self view]].y)/320.0;

    _lifeView.alpha = MAX(0, MIN(1, alpha));

}

pod install

实现所谓的genie effect。即点击最小化或删除按钮，视图会被吸进某个地方

键盘上移的实现

    // 键盘自动收回

-(void)initUI

{

    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapOnContentView:)];

    [self.container addGestureRecognizer:tapGesture];

    [self addKeyboardObserver];

    contentFrame = self.frame;

}

- (void)addKeyboardObserver{

    [[NSNotificationCenter defaultCenter] addObserver:self

                           selector:@selector(handleWillShowKeyboard:)

                               name:UIKeyboardWillShowNotification

                             object:nil];

    [[NSNotificationCenter defaultCenter] addObserver:self

                           selector:@selector(handleWillHideKeyboard:)

                               name:UIKeyboardWillHideNotification

                             object:nil];

}

- (void)handleWillShowKeyboard:(NSNotification *)notification

{

    CGRect keyboardRect;

    keyboardRect = [(notification.userInfo)[UIKeyboardFrameEndUserInfoKey] CGRectValue];

    keyboardRect = [self convertRect:keyboardRect fromView:nil];

    CGRect frame = contentFrame;

    if (keyboardRect.size.height > kDialogButtomMargin) {

        frame.origin.y -= (keyboardRect.size.height-kDialogButtomMargin);

                           [UIView animateWithDuration:0.25 animations:^{

            [self setFrame:frame];

        }];

    }

}

- (void)handleWillHideKeyboard:(NSNotification *)notification

{

    [UIView animateWithDuration:0.25 animations:^{

        [self setFrame:contentFrame];

    }];

}

导航字体设置

以后可以改变导航条标题颜色和字体

    [self.navigationController.navigationBar setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:

    [UIColor colorWithRed:0 green:0.7 blue:0.8 alpha:1], UITextAttributeTextColor,

    [UIColor colorWithRed:0 green:0.7 blue:0.8 alpha:1], UITextAttributeTextShadowColor,

    [NSValue valueWithUIOffset:UIOffsetMake(0, 0)], UITextAttributeTextShadowOffset,

    nil]];

    其中 UITextAttributeTextColor和UITextAttributeFont 属性是文字颜色和字体

  以后用tf的时候，tf的高度要比tf的字体大3，不然在tf内容满了以后，后续的tf内部的光标不会随着内容增加移动的

2015_6_遇到的各种坑

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原文地址：http://www.cnblogs.com/HNFourth/p/4650355.html