Implementation of the Android network type setting

work background: The company exports a foreign country's equipment, because the country to 4G certification requirements, the process is very troublesome, customers do not want to obtain a 4G certification, so order machine equipment to disable 4G,

Android AES Encryption error handling: Javax.crypto.illegalblocksizeexception:error:1e00007b:cipher functions:OPENSSL_internal:WRONG_ Final_block_length

I. Description of the problemToday writes the AES Add/Decrypt function apk, the assumption is four controls (testing, the interface ugly This kind of thing please ignore)A edit box----used to enter the string to encryptA text box----used to output

. Net Core Configuration file appsettings

1. The configuration file is appsettingsAdd ConnectionStringsto appsettings:{ "Logging": { "Includescopes":false, "LogLevel": { "Default":"Warning" } }, "ConnectionStrings": { "Moviecontext":"server= (localdb)

Solve complex JSON structures with Objectmapper readvalue () and generics

1 ImportCom.dj.fss.vo.MessageListVO;2 Importcom.fasterxml.jackson.annotation.JsonIgnoreProperties;3 Importcom.fasterxml.jackson.core.JsonParseException;4 Importcom.fasterxml.jackson.databind.JsonMappingException;5

android--using Jobservice for process keepalive

Process KeepAlive has always been the hope of the vast majority of app developers, because the process is alive we can do a lot of things (push, data synchronization, etc.), but Google is not allowed to do so (optimization), so we have to find a way.

How to use the Android NDK gracefully

Using the NDK for some time on Android studio, feeling that the official plugin com.android.tools.build.gradle-experimental is still not stable enough, there are some problems, but Google also stated that the plugin was in the experimental phase.

Create-react-app trample the Pit to remember

ObjectiveWow, no, don't say this react this scaffold create-react-app Foot does have a lot of problems, haha, let's see what pits there are:Quote Sass or lessRemember 16 or years is not support sass, and less, seemingly now support, I configure

Build the Vue Mobile project from scratch

1. If you install node. js, use the commandNPM Install--g VUE-CLI2. In the directory where you want to build the projectVue Init webpack myproject (project directory name)Enter as followsIn the middle will let the selection Eslint project code style

VS2017 Mobile Development (C #, VB. NET) How--numeric controls are used

Visual Studio 2017 Mobile developmentHow controls are introduced and used: numeric controlsSmobiler development platform,. NET Mobile developmentOne, style oneWe want to achieve the effect in the following actions: Drag a numeric control to

Android Learning--broadcasting mechanism

Introduction to broadcasting mechanismAndroid broadcasts can be divided into two types, standard broadcast and orderly broadcast;Standard broadcast: is a completely asynchronous broadcast, after the broadcast is sent, all the broadcast receivers are

Server BIOS setup for RACADM Environment (III)

This article focuses on the BIOS configuration for the Dell Server RACADM environment, with an example of F1/F2 error hints and hard drive boot order changes. Racadm Basic usage can refer to the previous article.#!/bin/bash# Sly chen# date:2016-09-14

Use include in Android layout and points to be aware of

In android layout, use include to introduce another XML file as part of the layout, but when using include, you need to be aware of the following issues: first, use include to introduce a layout such as an existing title bar Block_ Header.xml, the

Anti-debugging technology in Android

It's easier to have both of the followingDebug port Detection, 23946 (0x5d8a)Demo:void CheckPort23946ByTcp(){ FILE* pfile=NULL; char buf[0x1000]={0}; // 执行命令 char* strCatTcp= "cat /proc/net/tcp |grep :5D8A"; //char*

Android photo or album select photo to display zoom bitmap Demo

Use Bitmapfactory.decodestream (...) to create the Bitmap directly after taking the photo and show that there is a problem.Bitmap is a simple object that stores only the actual pixel data, that is, even if the original photo has been compressed, but

Extend and append

>>> A = ['Q','W','e','R']>>> A.extend (['T','y'])>>>a['Q','W','e','R','T','y']>>>Len (A)>>> B = ['Q','W','e','R']>>> B.append (['T','y'])>>>b['Q','W','e','R', ['T','y']]>>>len (B)The similarity between extend and the Append method is that all new

appium+python resolves problems with installing unlock and appiumsetting Every time code is run

Appium+python solve the problem of installing unlock and appiumsetting on every run code (some Android models)1, modify the Android-helpers.js file under Appium-android-driver\libInstallation path

Discuz Forum Advertising Banner Large map in the Baidu app can not be displayed, Baidu app by default opened the ad screen

Origin of the problemA discuz forum on the previous time to hang up 2 banners, the site is also good, and then the customer response Baidu app can not see the banner.Because I did not download Baidu app, see the effect I am doubtful, because the

Switch between English and Chinese in Android program

The start of the project did not take into account the English switch This is a very bad start. Until the completion of the basic project is not aware of the Chinese and English support. It is best to plan the UI layout before the start of the

Unity Camera spins and moves along its own coordinate system (i)

void Update () {Float h = input.getaxis ("horizontal");  Float v = input.getaxis ("Vertical"); if (Input.getkey (KEYCODE.J)) {transform.  Rotate (-vector3.up * time.deltatime * 50f, Space.world);    } if (H! = 0 | | V! = 0) {Vector3 targetoffset =

Android Source Code Analysis (v) Zygote process

I. Preface:NIT process –> zygote process –> systemserver process –> Launcher Desktop program-our appInit process: Linux root process, Android system is based on Linux system, so it can be counted as the first process of the entire Android operating

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