The previous article introduces how to develop the positioner hardware, SCM software, server software, upper computer client software. The following describes how to use android studio to develop the client APP display track.
What you can do by yourself never asks people. In front of you, you used ...
Posted on Sat, 11 Jan 2020 05:58:44 -0800 by robinas
Document information related API
//filetype($filename):Get the type of file,Returns the type of file
echo 'The file type is:',filetype($filename),"\n";//file
//filesize($filename): get the size of the file, return bytes
echo 'The file size is:',filesize($filename),"\n";//1214
Posted on Sat, 11 Jan 2020 00:44:16 -0800 by FrostedFlakes
I have sorted out the related knowledge of internal class, which is quite comprehensive and basic. I hope you can learn and progress together.
1, What are inner classes?
In Java, you can put the definition of one class inside the definition of another, which is internal class. The inner class itself is a property of the class, which is ...
Posted on Fri, 10 Jan 2020 20:54:01 -0800 by dopey
Close.The question is off-topic.It currently does not accept the answer.
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Closed 2 years ago.
I have difficulty finding good information on how to invoke standard SOAP / WSDL Web services u ...
Posted on Fri, 10 Jan 2020 18:00:07 -0800 by Online Connect
shape effect customization is very important, but it's not often used and easy to forget, so it's convenient to take notes here when you need to, just because I don't like to memorize code, just like to live learning! Ha-ha
The implementation effect is as shown in the button style in the figure below, with border stroke, inter ...
Posted on Fri, 10 Jan 2020 10:46:24 -0800 by csousley
1, About EditText
① EditText is an input box, which is a common control in Android development. It is also a way to get user data.
(2) EditText is a subclass of TextView, which inherits TextView All properties of.
2, Common properties
1 input type: Android: inputtype = "value" value list
① number can only enter numbers
② numbe ...
Posted on Fri, 10 Jan 2020 08:55:39 -0800 by webtailor
Change status bar color
Set by Style
By specifying a theme: android:theme = "@ style/AppTheme"
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@colo ...
Posted on Thu, 09 Jan 2020 07:08:18 -0800 by alexville
2. log level
When Android developers debug the program, they will more or less use log to check the status of the program. At the same time, the system will also prompt the R & D personnel through the log, information that the system needs to handle, such as exceptions, system warn ...
Posted on Wed, 08 Jan 2020 07:10:18 -0800 by nineseveninteractive
Problem: ViewPager fragment onResume() was triggered before the fragment was actually visible.
For example, I have 2 with ViewPager and fragmentpager adapter. The second fragment is for authorized users only, and I need to have users log in when the fragment is visible (using the alert dialog box).
However, when the first clip is visible ...
Posted on Tue, 07 Jan 2020 20:17:40 -0800 by SnakeO
What is the difference and connection between OkHttp and Retrofit?
Reference Answer:OkHttp and Retrofit are both popular open source frameworks for networks
Packaging is different:Retrofit encapsulates specific requests, thread switching, and data conversion.retrofit encapsulates okhttp using proxy, appearance, and policy patternsOkHttp is a s ...
Posted on Tue, 07 Jan 2020 10:33:13 -0800 by fox_m