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How can I mask a UIImageView?
... = (id)[[UIImage imageNamed:@"mask.png"] CGImage];
mask.frame = CGRectMake(0, 0, <img_width>, <img_height>);
yourImageView.layer.mask = mask;
yourImageView.layer.masksToBounds = YES;
For Swift 4 and plus follow code below
let mask = CALayer()
mask.contents = [ UIImage(named: "right_c...
JavaScript loop through json array?
...ke this:
var json = [{
"id" : "1",
"msg" : "hi",
"tid" : "2013-05-05 23:35",
"fromWho": "hello1@email.se"
},
{
"id" : "2",
"msg" : "there",
"tid" : "2013-05-05 23:45",
"fromWho": "hello2@email.se"
}];
You can loop over the Array like this:
for(var i = 0; i...
iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...否交叉，是否重叠
CGRectZero//高度和宽度为零的，位于（0，0）的矩形常量
3.隐藏状态栏
[UIApplication sharedApplication] setStatusBarHidden:<#(BOOL)#> withAnimation:<#(UIStatusBarAnimation)#>//隐藏状态栏
4.自动适应父视图大小
self.view.autoresizesSub...
Why is “int i = 2147483647 + 1;” OK, but “byte b = 127 + 1;” is not compilable?
... MByDMByD
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10
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Javascript Regex: How to put a variable inside a regular expression?
...licious content (e.g. the variable comes from user input)
ES6 Update
In 2019, this would usually be written using a template string, and the above code has been updated. The original answer was:
var regex = new RegExp("ReGeX" + testVar + "ReGeX");
...
string.replace(regex, "replacement");
...
How do I pause my shell script for a second before continuing?
...
10 Answers
10
Active
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Converting BigDecimal to Integer
...il Bourque
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answered Oct 28 '10 at 14:01
willcodejavaforfoodwillcodejavaforfood
...
App Inventor 2 变量代码块 · App Inventor 2 中文网
...系方式： 不需要回复的可留空~ 意见反馈（300字以内）： 给个鼓励也行呐~o~ 提供截图（仅截取当前可视区域） delete edit 高亮或隐藏信息 ...
10 款进阶综合应用：业务流程与硬件接入 · App Inventor 2 中文网
... 搜索 10 款进阶综合应用：业务流程与硬件接入
这组案例适合继续做成工作室、小店、社团和家庭的实用工具。6 款业务应用 + 4 款硬件应用，每...
App Inventor 2 OCR 自研拓展：离线图片文字识别（Tesseract 5） · App Inventor 2 中文网
...
.aix 最新拓展下载：
cn.fun123.OCR.aix - v2.0
内置简体中文 chi_sim 轻量模型，安装后即可离线识别
注：本拓展包含原生库（.so），联机调试需 2026-07 之后的新版 AI 伴侣；打包 APK 不受影响，详见 常...