Android reads contacts through the interface form of contentprovider, and the contact operation is a high-risk behavior, so permission application is required: <uses-permission android:name=”android.permission.READ_CONTACTS”/> If it is an Android 6.0 or higher system, it is necessary to apply for runtime permissions before the actual operation. The issue of runtime permissions will not be discussed here. […]
Tag: contact
Contacts–a collection of dynamic files
A simple address book often requires simple “cooking” to complete a “delicious dish”. We need an address book that can store contact information, add, delete, check, modify, query, and sort by name. Compared with the previous game of backgammon and minesweeper, with a certain understanding, the feeling of the address book here has also become […]
New crown pneumonia close contact tracking system based on java+springboot+vue
Project Introduction Information data has been changing from tradition to modern times. The sudden Internet has brought a revolutionary dawn to traditional information management, because traditional information management is in terms of timeliness, security, and operability. It was only when we encountered the Internet age that we discovered that we can make up for the […]
STM32 realizes MLX90614 non-contact temperature measurement serial port display (standard library and HAL library implementation)
Directory module selection programming environment MLX90614 Fundamentals Communication protocol (SMBus communication, class IIC communication) Code Wiring table between STM32 and module 1. The standard library realizes temperature collection 2. HAL library realizes temperature acquisition Module Selection ·STM32F103C8T6 ·MLX90614 non-contact infrared temperature sensor programming environment · KEIL5 (μVision V5.30.0.0) Other versions have little impact ·STM32CubeMX, version […]
C language implementation of address book [file version] – archive contact information
I really can’t hate a boy chasing his dream Directory 1. Precautions for reading source code 2. File reading function and file reading and writing rules 1. Open the file 2. Read and write files 3. Close the file Hello everyone, I am Ji Ning. The previous article showed you how to use C language […]
Boundary Curve Recognition of Droplet Contact Angle-Using Ovito Skillfully
focus on m r . m a t e r i a l , \color{Violet} \rm Mr.material\ , Mr. material , Even \color{red}{more} Even many \color{blue}{multiple} many Refined \color{orange}{fine} Refined colorful \color{green}{color} color! The main columns include: ? “LAMMPS Tips”: ￣ \textbf{ \underline{\dag “LAMMPS Tips”: }} ? “LAMMPS Tips”: ? Mainly introduces the use of […]
P3133 [USACO16JAN] Radio Contact G
P3133 [USACO16JAN] Radio Contact G Radio Call Article directory P3133 [USACO16JAN] Radio Contact G [USACO16JAN] Radio Contact G topic description input format output format Sample #1 Sample input #1 Sample output #1 hint train of thought postscript Topic Portal [USACO16JAN] Radio Contact G Description of topic Farmer John has lost his favorite cow bell, and […]
Non-contact weighing device based on water level sensor
Contactless weighing device based on water level sensor (arduino) Article directory Contactless weighing device based on water level sensor (arduino) Project Overview Project members and division of labor 1. Non-contact continuous liquid level sensor 2. Experimental principle 2. Experimental process 1. Device improvement 2. Code part data processing Summarize outlook Project Overview This course project […]
Contact message preview (vue component)
1. Screenshot 2. Source code Link: https://pan.baidu.com/s/1-sROJDif547E1sNWoQpPIw?pwd=lsd3 Extraction code: lsd3 – Sharing from Baidu Netdisk super member V4 3. Code chatList.vue <template> <div class=”wrapper” :style=”{<!– –>’–width’:width,’–height’:height,’–oneofonerow’:oneofonerow,’–oneoftworow’:oneoftworow , ‘–oneofoneofonecol’:oneofoneofonecol,’–oneofoneoftwocol’:oneofoneoftwocol,’–oneofoneoftwocolofonerow’:oneofoneoftwocolofonerow, ‘–oneofoneoftwocoloftworow’:oneofoneoftwocoloftworow}”> <div class=”one”> <div class=”oneofonerow”> <div class=”oneofoneofonecol”> <el-image fit=”cover” style=”border-radius: 50%” :style=”{<!– –>’width’:oneofoneofonecol,’height’:oneofoneofonecol}” :src=”url1″ :preview-src-list=”[url1]”> </el-image> </div> <div class=”oneofoneoftwocol”> <div class=”oneofoneoftwocolofonerow” :style=”{<!– –>’font-size’:fontsize}” style=”padding-left: 5px;padding-top: 5px”> {<!– […]
1139. First Contact (30)-PAT Class A real questions (string hash table composition)
Title Given the number of nodes n and the number of edges m, then give m endpoints v1 and v2. Determine whether the endpoint is a boy or a girl according to whether the first character of the node string is -. Then ask q times, each time give v1 and v2 who want to […]