Location of Android Development

_The positioning written here is native, that is, the positioning function of the system itself. _First, introduce how you can always get the location information, then introduce a location update separately.On systems 6.0 and above, run-time privileges are required to use positioning. Always get location information ...

Added by sentback on Sun, 12 Jul 2020 18:56:29 +0300

Loading effect of pure css, waiting for loading is also a pleasure

In the Internet age, how many websites exist and each has its own style, but what style can keep users from watching?From the point of loading, many loading effects are the same style. Maybe users are used to browsing websites frequently. If you load longer than other websites and the effect is the same, you may close your website and go ...

Added by cr55dan on Sun, 12 Jul 2020 17:40:14 +0300

Summary of domains and closures in js

Foreword: Scope is a very basic knowledge in js, and it is also a place that front-end interview questions like to examine.Understanding scope is also a prerequisite for using closures. Scope understanding 1. First of all, understand that there is no block-level scope in js, only global scope and function scope in js; Variables not decla ...

Added by Vball on Sat, 11 Jul 2020 18:31:01 +0300

Summary of domains and closures in js

Foreword: Scope is a very basic knowledge in js, and it is also a place that front-end interview questions like to examine.Understanding scope is also a prerequisite for using closures. Scope understanding 1. First of all, understand that there is no block-level scope in js, only global scope and function scope in js; Variables not decla ...

Added by mentorbassment on Sat, 11 Jul 2020 18:30:41 +0300

Installation and configuration of Ubuntu firewall

Ubuntu Install UFW firewall sudo apt-get install ufw For general users, only the following settings are required: sudo apt-get install ufw sudo ufw enable sudo ufw default deny The above three commands are safe enough. If you need to open some services, you can use sudo ufw allow. Enable sudo ufw enable sudo ufw default deny #Aft ...

Added by konn on Fri, 10 Jul 2020 19:12:17 +0300

CentOS 7 PHP7 Enable session extension

Configuration Guide: http://php.net/manual/zh/refs.basic.session.php http://php.net/manual/zh/session.configuration.php Use the command: php -i Find the information for the printout session block session Session Support => enabled Registered save handlers => files user Registered serializer handlers => ph ...

Added by harlequeen on Fri, 10 Jul 2020 18:46:58 +0300

Three ways of querying hibernate

There are three main query modes common to hibernate: HQL, QBC (named query), and using native SQL query (SqlQuery) HQL Query * HQL (Hibernate Query Language) provides a rich and flexible way of querying, and using HQL for querying is also Hibernate's official recommended way of querying. * HQL is very similar in syntax structure to ...

Added by schoi on Fri, 10 Jul 2020 18:19:06 +0300

Android implements request HTTP authentication

These days, the development of external SDK, can achieve landing, payment.Similar to developing a set of QQ, WeChat third party login.The authorization protocol used is OAuth 2.0.Among them, Http Authentication is used, and you can consult the online materials. There are all kinds of answers, some don't know if they have been verified, and some ...

Added by ekalath on Fri, 10 Jul 2020 17:54:48 +0300

Fingerprint and face recognition

1. Fingerprint Identification 1. Introduction to fingerprint recognition The iPhone 5S begins to have fingerprint recognition Starting with ios8.0, Apple opened a verification interface for fingerprint recognition: LocalAuthentication 2. Call mechanism Give three consecutive opportunities, after which you will be p ...

Added by catnip_uk on Fri, 10 Jul 2020 17:42:44 +0300

offer rotation array

Moving the first elements of an array to the end of an array is called array rotation. Input a rotation of a non decreasing sort array and output the smallest element of the rotated array. For example, if the array {3,4,5,1,2} is a rotation of {1,2,3,4,5}, the minimum value of the array is 1. NOTE: all elements given are greater than 0. If th ...

Added by h3ktlk on Thu, 09 Jul 2020 18:59:09 +0300