Tag: contact

Design and implementation of new coronavirus close contact tracking system based on SpringBoot

Table of Contents Preface 1. Technology stack 2. Introduction to system functions Administrator function implementation Nucleic acid testing management Announcement information management Announcement type management 3. Core code 1. Login module 2. File upload module 3. Code encapsulation Foreword Information data has been undergoing changes from tradition to contemporary times. The sudden emergence of the […]

PYthon Simple Contact – Wrong Question Book Program

This program is designed with the help of the pycharm platform. Its main function is to mark and review wrong questions into the database. The interface is divided into two major sections, each corresponding to seven categories of questions. The wrong question storage section mainly extracts the photo of the question and enters the difficulty […]

Android reads contact information

Contact information is stored in a database contacts2.db The main two tables Read contacts Reading a contact requires knowing the address of the contact content provider and the corresponding operation object. Generally, the naming method and indication of the operation object are consistent. Layout file Define a button button in the layout file to get […]

Design of threshold alarm LCD display for infrared non-contact human body thermometer based on microcontroller

Design requirements: This design consists of STC89C52 microcontroller circuit + 1602 liquid crystal display circuit + MLX90614ESF infrared non-contact temperature detection circuit + button circuit + buzzer alarm circuit. 1. The LCD displays the ambient temperature value and the measured object temperature value detected by MLX90614ESF in real time, with E ambient temperature in the […]

Install qt5.12 under ubuntu20.04 (super detailed, if you can’t install it, please contact me)

Installing qt5.12 under ubuntu20.04 (super detailed, if you can’t install it, please contact me) The road is long and long, I am searching Published on 2021-10-28 15:41:57 8894 Collection 89 Category column: qt Article tags: qt ubuntu linux Copyright statement: This article is an original article by the blogger, follow CC 4.0 BY-SA copyright agreement, […]

Decision Tree Algorithm: How to Choose Contact Lenses

According to some data of the above case, we can see that the final decision on whether to wear glasses and what material to choose depends on the various data we need before, and then decide what material to choose after layer-by-layer screening. Through the decision tree shown in the figure above, we can see […]

Android read, add, update, delete contacts, read text messages

Directory read contacts Add contacts update contact delete contact read sms Read Contacts Android can read the contact table through contentResolver. The Uri information of the contact table is: content://com.android.contacts/data/phones to output the contact information. Relevant permissions are required: <uses-permission android:name=”android.permission.READ_CONTACTS”> </uses-permission> The specific code is as follows: //Need to read contacts permission READ_CONTACTS @SuppressLint(“Range”) […]

Display contact avatars using Picasso loading

Picasso comes with support for loading and displaying contact avatars, as long as the URL of the contact avatar is passed in, for example”photo:content://com.android.contacts/contacts/1005/photo”, then call Picasso.load(Uri).into(ImageView), The display of the avatar of the contact can be completed. But this usage has a limitation: when we don’t know the avatar URL of a contact, we […]