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原创 【备忘】IOS难写且常用的语法
1.方法和变量black的写法typedef void (^SureBlock)(NSString *score);typedef void (^CancelBlock)(void);@implementation MyClass{ CancelBlock _cancelBlock; CloseBlock _sureBlock;}-(void)method:(void(...
2018-08-21 11:47:21
311
原创 【鸿蒙NEXT】web组件debug模式
Discover network targets 中添加 localhost:9222。进程太多要清掉,关闭服务。
2024-04-20 17:00:18
317
原创 【鸿蒙NEXT】字符串转为二维码base64字符串
generateBarcode.createBarcodetg 生成pixelMap对象，再将pixelMap转为base64字符串供H5页面显示。
2024-04-09 09:28:34
120
原创 performSelector最多支持两个参数，使用NSInvocation支持多参数
performSelector最多支持两个参数，使用NSInvocation支持多参数
2023-02-10 17:08:38
147
原创 js如何优雅处理TypeError: Cannot read properties of undefined
方式一：function lodash_get(path,defaultValue=undefined){ let result = window; const paths = path.split("."); for(const p of paths){ result = Object(result)[p]; if(result == undefined){ return defaultValue; }
2022-05-09 09:10:32
2888
转载 【IOS】AppIcon添加版本号文本
转载自：iOS ImageMagick 图片添加编译号brew install imagemagickbrew install ghostscript是否安装成功identify -versionidentify -list font根据错误提示看是否需要安装xcode-select --installbrew install --build-from-source [email protected] -> build Phases -> 添加 run script：#!/
2022-03-29 11:45:56
212
原创 【IOS】按钮双图片翻转动画
CMSCoinView.h#import <UIKit/UIKit.h>typedef void (^ClickBlock)(BOOL isObcerse);@interface CMSCoinView : UIView -(id)initWithPrimaryView:(UIView *)view1 andSecondaryView:(UIView *)view2 inFrame:(CGRect)frame; @property (nonatomic,strong) UIV
2022-02-28 10:54:29
579
原创 【IOS】OC中UIView同时添加阴影和圆角
圆角中的masksToBounds=YES和阴影中的clipsToBounds=NO存在冲突，所以圆角与阴影不能共存，现在使用一个单独的UIView在下层做为阴影，上层原来的UIView设置圆角。UIView+Shadow.h@interface UIView (Shadow)-(UIView *)shadow;-(UIView *)shadow:(int)radius;@endUIView+Shadow.m#import "UIView+Shadow.h"@implementati
2022-01-07 14:22:52
3333
原创 Electron + Vue + ElementUI 之HelloWorld
sudo npm install @vue/cli -gsudo npm install @vue/cli-service -gsudo npm install -g electronnode -vvue -Velectron -vvue create vue-electron-democd vue-electron-demo npm run serve添加Electronsudo vue add electron-builder运行electron npm run
2021-12-28 09:54:55
573
原创 Flutter桌面开发之HelloWorld
flutter channel masterflutter upgrade --forceflutter doctor flutter config --enable-linux-desktop flutter config --enable-macos-desktopflutter config --enable-windows-desktopflutter devicesgit clone https://github.com/google/flutter-desktop-embeddi
2021-12-20 10:16:03
1010
转载 macos11(big sur) mysql无法启动
sudo /usr/local/mysql/support-files/mysql.server startsudo /usr/local/mysql/support-files/mysql.server stopsudo /usr/local/mysql/support-files/mysql.server restartsudo launchctl load -w /Library/LaunchDaemons/com.oracle.oss.mysql.mysqld.plist
2021-12-18 19:40:17
211
转载 删除 .DS_Store
转载自互联网：https://www.jianshu.com/p/fdaa8be7f6c3删除项目中的所有.DS_Store。这会跳过不在项目中的 .DS_Store1.find . -name .DS_Store -print0 | xargs -0 git rm -f --ignore-unmatch将 .DS_Store 加入到 .gitignore2.echo .DS_Store >> ~/.gitignore更新项目3.git add --all4.git commit
2021-10-30 11:27:02
502
原创 微信下载文件并分享pdf
-(__kindof NSURLSessionTask *)downloadWithURL:(NSString *)URL fileDir:(NSString *)fileDir progress:(void(^)(NSProgress *progress))progress s
2021-09-27 10:57:59
369
原创 MacOS设置4位数以下密码
pwpolicy -clearaccountpolicies提示 Clearing global account policies 代表成功，否则请检查是否输入正确。passwd
2021-08-09 09:52:17
569
原创 【Flutter】Banner
pubspec.yaml:flutter_swiper_null_safety: ^1.0.2banner.dartimport 'package:flutter/material.dart';import 'package:flutter_swiper_null_safety/flutter_swiper_null_safety.dart';class BannerView extends StatefulWidget { List<Image> imgs = []; @
2021-07-21 15:54:16
142
原创 【Flutter】自定义TabBarController
tabIcon_data.dart// ignore_for_file: file_namesclass TabIconData { TabIconData({ this.imagePath = '', this.index = 0, this.selectedImagePath = '', this.centerImage = '', this.title = '', this.isSelected = false, }); String
2021-07-21 15:45:58
721
1
原创 IOS系统短震动
+(void)feedback{ if (@available(iOS 10.0, *)){ UIImpactFeedbackGenerator *feedBackGenertor = [[UIImpactFeedbackGenerator alloc]initWithStyle:UIImpactFeedbackStyleLight]; [feedBackGenertor prepare]; [feedBackGenertor impactOccurr
2021-07-21 11:31:46
553
原创 【Flutter】Provider之HelloWorld
pubspec.yaml:provider: ^5.0.0main.dart：class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(key: key); // This widget is the root of your application. @override Widget build(BuildContext context) { return MultiProvider(
2021-07-16 10:26:59
132
原创 【Flutter】JSON转换
pubspec.yaml中添加json_annotation，build_runner，json_serializable :dependencies: flutter: sdk: flutter cupertino_icons: ^1.0.2 json_annotation: ^4.0.1 dev_dependencies: flutter_test: sdk: flutter flutter_lints: ^1.0.0 b.
2021-07-01 16:35:33
361
原创 Flutter之HelloWorld
1.下载Fluttergit clone -b dev https://github.com/flutter/flutter.gitexport PATH="$PWD/flutter/bin:$PATH"cd ./flutterflutter doctor2. .bash_profile中添加pathexport PATH=/Users/lion/flutter/bin:$PATHexport PUB_HOSTED_URL=https://pub.flutter-io.cnexport F
2021-06-28 17:19:38
371
2
原创 React Native之HelloWorld
#查看node版本node -v#nodejs中有一个模块叫n，专门用来管理node.js的版本的npm install -g n#使用n升级node.js到最新稳定版n stable#安装exponpm install --global expo-cli#安装脚手架create-react-native-appnpm install -g create-react-native-app#使用create-react-native-app创建应用create-react-na
2021-06-24 16:02:57
186
原创 RealmSwift之HelloWorld
cocoapods引入pod 'RealmSwift'PO:import HandyJSONimport RealmSwiftclass CoinInfo: Object,HandyJSON,Decodable{ @objc dynamic var nid: Int = 0 @objc dynamic var name: String = "" @objc dynamic var symbol: String = "" @objc dynamic var pri
2021-03-23 14:46:29
204
原创 macos安装PaddleOCR
安装pyenv#安装完pyenv后，切换到3.7.x版本才可以安装paddlepyenv global 3.7.10pyenv local 3.7.10python -V#安装unrarbrew install carlocab/personal/unrar#打印出64bit x86_64才可安装python -c "import platform;print(platform.architecture()[0]);print(platform.machine())"#升级pip/
2021-02-25 16:05:17
1187
原创 macos多版本Python设置
#安装pyenvbrew install pyenv#显示pyenv版本pyenv -v#显示pyenv版本列表pyenv install --list#使用brew安装wgetbrew install wget#安装pyenvpyenv install 3.9.1#查看版本pyenv versions#设置当前版本pyenv global 3.9.1python -V#设置本地版本pyenv local 3.9.1python -V#明明已经切换成功，但
2021-02-25 11:30:45
321
原创 Mac重装ruby并重装cocoapods
rvm install ruby-2.6ruby -vrvm use ruby-2.6.6rvm --default use 2.6.6sudo gem install -n /usr/local/bin cocoapodspod --versionpod search afnetworking
2021-02-19 17:28:12
2928
1
G共享之J2EE初级阶段
2013-06-07
G共享之JAVASE阶段
2013-06-07
strutsSpringHibernateJar
2013-04-23
GZIP windows xp下使用
2011-12-04
javaMail1.4.4
2011-09-13
xtree1.1和例子
2011-07-28
G共享之Oracle阶段
2011-01-07
keyboard-click.aiff
2021-07-21
j2objc ios demo
2018-02-27
java sdk 1.6 for mac
2017-08-14
Adblock Plus (chrome for Mac)
2015-07-24
javapns.jar
2014-06-29
ASIHttpRequest下载
2014-03-02
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