android sqlite multiple threads

tasks, processes, and threadsAbout the components and applications in Android, previously involved, mostly static concepts. When an application runs, it is inevitable that you will need to be concerned about the concepts of processes and threads. In Android, the dynamic operation of components, there is a most unusual concept, is the task, translated into tasks,

The use of embedded relational SQLite database storage data On the Android platform, an embedded relational database is integrated--sqlite,sqlite3 supports NULL, INTEGER, real (floating-point numbers), text (string literals), and BLOB (binary object) data types, although it supports only five types, In practice, however, Sqlite3 also accepts data types such as v

also called a worker thread, except that threads other than the main thread are child threads.Threads in AndroidAndroid follows the Java threading model, where threads are also the main thread and child threads, and the main thread is called the UI thread. In an Android system, by default, individual components within

Android thread pool to manage threads There are many examples of thread pools on the Internet. In our actual application, for example, how to manage an application thread, we can say that we can use a thread pool to manage threads. Eg: Class DianLiang1 implements Runnable { @ Override Punlic void Run { System. println ("*************** 111111111111111111111 *****

I. Use an embedded relational SQLite database to store data The Android platform integrates an embedded relational database named SQLite. SQLite3 supports NULL, INTEGER, REAL (floating point number), TEXT (string TEXT), and BLOB (binary object) data types, although it supports only five types, sqlite3 actually accepts data types such as varchar (n), char (n), dec

Processes and threads When an application component starts and the application does not have any other components running, the android system starts a new Linux Process for the application with a single thread of execution.By default, all components of the same application run in the same process and thread (called the "Main" Thread ). if an application component starts and there already exists a process fo

Use an embedded relational SQLite database to store dataIn addition to using files or SharedPreferences to store data, you can also choose to use the SQLite database to store data.On the Android platform, an embedded relational database-SQLite is integrated. SQLite3 supports NULL, INTEGER, REAL (floating point number),

any process.This article discusses how processes and threads work in Android applications.Process By default, all components in the same application run in one process, and most applications do not change this way. However, if you need to specify the process to which a particular component belongs, you can use the Manifest file to achieve the purpose.The nodes of each component element in the Manifes

As we all know, the process in the operating system is the smallest unit of OS allocated resources, and the thread is the smallest unit to perform the task. A process can have multiple threads to perform tasks that can share the resources that the process assigns to. When our app starts running and no other components are running, the Android system launches a ne

Concurrent processing of Android threads and android thread concurrency The previous article introduced the simple logoff knowledge. In this article, we will introduce the concurrent processing of multiple threads. We know that the messages sent by Handler through sendMessag

Original article address: process and thread in Android Author: Jiang Peng In Android, how do processes communicate with threads ??1. When an android program starts running, a process is started separately.By default, all the activities or services in this program run in this process.By default, an