replication activity

This is a basic problem, no difficulty, just a small logical implementation of the problem. In order to later have the need for convenient, save down. The new study students can refer to the next.First of all, when writing a project, we usually write baseactivity, which inherits the activity of other activities and inherits Baseactivity.So, the idea is that we write a activitycollector such a class to add and remove

Overview replication is usually used to create a copy of the master node to ensure high availability by adding redundant nodes. Of course, replication can also be used for other purposes, such as reading and analyzing data on the slave node. In horizontally Scalable businesses, replication is easy to implement, mainly in the use of the master node for write opera

MySQL replication is divided into master-slave replication and master-master replication. What is master-slave Replication refers to a master server with one or more servers as the slave servers. The slave server does not write any data. The data source is the master server. The purpose of

Tags: Linux operationsLinux Operation phase IV (VII) MySQL REPLICATION (Master-slave replication, semi-synchronous replication, replication filtering)First, MySQL Replication Related concepts:1, the role of replication: to support

Section 5th Activity's manifest Configuration 5.1 activity StatementActivity is a four-part component, and each activity defined in the code needs to be declared in a AndroidManifest.xml file.manifest xmlns:android="Http://schemas.android.com/apk/res/android" package ="Com.anddle.activitytest"> applicationandroid:icon="@mipmap/ic_launcher"android:label= "@string/app_name">

Tags: command Restart 3.2 Quick Ons method clear lag rest 8.1 Activity 8.1.1 Origins 8.1.2 Activity Patterns 8.1.3 Life cycle about 8.2 activity task Stack 8.3 activitymanifest Boot mode 8.3.1 Standard 8.3.2 Singletop 8.3.3 Singletask 8.3.4 singleinstance 8

Activity details 1 configure, start, and close an activity. activity details First look: Android provides four application components: Activity, Service, Broadcast receivers, and Content providers. These components constitute the foundation for developing an Android Application. The system can enter the developed app

MySQL replication is primarily replicated from the primary master. What is master-slave replication Master-slave replication means that there is a single device to do as the primary server, one or more servers as from the server. No data is written from the server, and the source of the data is the primary server. The purpose of the

Activity details 3 Start activity and return results. activity detailsFirst, let's take a look at the demo: 1 Overview To get the data returned after the Activity is closed, use the startActivityForResult (Intent intent, int requestCode) method provided by the system to open the new

Let's look at the effect chart: Android provides us with four types of components, activity, Service, broadcast receivers, and content providers, which are the cornerstones of our development of an Android application. The system can be entered into the development application through the pointcuts provided by different builds. Not all builds are practical pointcuts for users, but they are interdependent, each of which acts as a specific role as an

An Android app can contain multiple activity, and an activity can initiate another activity.The activity is managed with a stack structure, and the newly opened activity is stacked on top of the current activity, and the current activity