Tag：Text box
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Time：2021-6-11
preface Is the vertical center we usually achieve not the real vertical center? Why are you say that? Most of the time, you often realize the vertical centring correctly, but UI / UX still says that there is something wrong with your vertical centring. When you look at it carefully, it seems that there is […]
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Time：2021-4-25
Normal use of codemirror: //First of all, introduce the corresponding JS through the tag, which is needless to say var myCodeMirror = CodeMirror.fromTextArea(myTextArea,{ key: “value” });// It’s that simple </code></code></pre> < H1 id = “question 1: codemirror does not display code in the bootstrap mode box” > question 1: codemirror does not display code in […]
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Time：2021-4-21
At the beginning of the flutter text box, we usedTextField. There seems to be no problem in most cases. The code form is as follows: class _FooState extends State<Foo> { TextEditingController _controller; @override void initState() { super.initState(); _ Controller = new texteditingcontroller (text: ‘initialization content’); } @override Widget build(BuildContext context) { return new Column( children: […]
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Time：2021-3-24
1. Project introduction FlutterIt is a popular cross platform development technology at present. With its excellent performance, it has attracted the attention of many front-end technology lovers, such asAlixianyu，Meituan，tencentAnd other large companies have put relevant cases into production.flutter_ Chatroom projectIt’s based onFlutter+Dart+chewie+photo_view+image_pickerThe cross platform application of wechat like app chat interface is developed, which realizes […]
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Time：2021-3-12
If the text box is read-only, the backspace key is disabled. If you have a text box, you can continue to use it. Vue code can be copied directly to the page with id = app. The code is as follows: //Handle keyboard events, except for backspace password or single line or multi line text […]
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Time：2021-3-10
Today, I’d like to share with you several online free SQL running environments, namely online databases. These websites can help us quickly run the test or verification of some SQL statements. At the same time, they can be shared on the network. The key is that we don’t need to install the database ourselves. […]
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Time：2021-3-9
When your application needs to present important information to users or prompt users for important choices, you can use alert view and action sheet. The left part of the figure below is the warning box, and the right part is the operation table. Since IOS 8, Apple has usedUIViewControllerOfUIAlertControllerInstead ofUIAlertViewandUIAlertSheet。 Although UIalert controller has two […]
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Time：2021-3-4
Can HTML, CSS and JavaScript really be used to build desktop applications? The answer is yes. In this article, we will focus on how electron uses web technologies such as HTML, CSS and JavaScript to create desktop applications. Electron Electron can be used to build desktop applications using HTML, CSS and JavaScript. These applications are […]
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Time：2021-3-4
preface Recently, I received a client’s native page. Customers require that the page must be compatible with IE9 and above browsers, and that the compatible mode of 360 browser can be accessed normally. 360 browser can force the speed mode through code, which is easier to solve. However, to be compatible with IE9, many CSS3 […]
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Time：2021-2-25
Input text box, you can use the placeholder property The result is that when the content of the text box is empty, the prompt will be displayed, and when the content is entered, the prompt will disappear The difference between the placeholder and the value attribute is that the value attribute is directly set to […]
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Time：2021-2-19
1、 Project overview Flitter chatroom is based on flitter + dart + Chewie + image_ picker+photo_ View and other technologies to develop cross end chat room project imitating wechat app interface. The functions of message sending / dynamic GIF expression, pop-up window, picture preview, red envelope / circle of friends / small video number are […]
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Time：2021-2-10
Today, I would like to summarize several useful HTML tags, which are often used in development. Those who are not familiar with them may not be very clear Copy code The code is as follows: readonly、disabled、autocomplete Readonly means that the value of this field can’t be modified. It can only be used with type = […]
