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How can I reverse a NSArray in Objective-C?
..., @"ce", @"cf", @"cg", @"ch",
@"ci", @"cj", @"ck", @"cl", @"cm", @"cn", @"co", @"cp", @"cq", @"cr", @"cs", @"ct", @"cu",
@"cv", @"cw", @"cx", @"cy", @"cz"];
NSDate *methodStart = [NSDate date];
NSArray *reversed = [[anArray reverseObjectEnumerator] allObjects];
NSDate *methodFinis...
MLKitCodeScanner 拓展:离线条码 / 二维码识别 · App Inventor 2 中文网
...rmeabi-v7a + x86 + x86_64(含模拟器)。
.aix 拓展下载:
cn.fun123.MLKit.CodeScanner.aix
快速上手
一、扫图片里的二维码
设计器里放一个 MLKitCodeScanner、一个按钮、一个标签,再放一个「图像选择...
网站伪静态Rewrite重写中文路径时乱码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...题下面我们来总结一下我的分析过程。转自:http://www.111cn.net/sys/Windows/55779.htm
一、问题的由来。
URL就是网址,只要上网,就一定会用到。
一般来说,URL只能使用英文字母、阿拉伯数字和某些标点符号,不能使用其他文字和...
Dealing with nginx 400 “The plain HTTP request was sent to HTTPS port” error
...$server_name instead of $host, the server_name presumably being set to the CN that the SSL cert authenticates. That way, the user won't get a scare screen if they came in via an IP or localhost.
– George
Nov 9 '13 at 5:31
...
Best way to determine user's locale within browser
...urns an array of language preference: navigator.languages //["en-US", "zh-CN", "ja-JP"] This should work on at least 95% of browsers in 2020.
– Cornelius Roemer
Mar 9 at 13:11
1
...
MLKitHandwriting 拓展:手写识别(写字变文字) · App Inventor 2 中文网
...)已打包在 .aix 里,不需要下载。
.aix 拓展下载:
cn.fun123.MLKit.Handwriting.aix
快速上手
一、写字识别(最小可用)
设计器摆放:
一个画布(Canvas),宽度「充满」、高度 300 像素,画...
App Inventor 2 ECharts 拓展:基于 ECharts 强大的个性化数据图表展示 · ...
...回首页
资源下载
.aix 拓展下载:
cn.fun123.ECharts.aix
demo程序下载:
echats_demo.aia
注:2个拓展是共一个.aix拓展文件,里面分2个拓展组件,导入.aix效果如下:
也可从拓展市场进行一键导入/升级:
EChar...
How to get current foreground activity context in android?
...yManager)context.getSystemService(Context.ACTIVITY_SERVICE);
ComponentName cn = am.getRunningTasks(1).get(0).topActivity;
UPDATE 2018/10/03
getRunningTasks() is DEPRECATED. see the solutions below.
This method was deprecated in API level 21.
As of Build.VERSION_CODES.LOLLIPOP, this method is no l...
Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification
...debug parameters to see remote "Certificate chain" in logs, then grep the "CN" in truststore explicitly passed (instead of default) as follows, if not present, you need to add. ssllabs.com/ssltest/analyze.html will show if server side certs has incomplete chain, and includes intermediate certificati...
二维码的生成细节及原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的编码。
(全文完)
文章转自: 酷 壳 – CoolShell.cn
二维码 细节 原理
