Android interview questions
1. Whether the process of android dvm is the same concept as that of Linux:
A: dvm is a dalivk virtual machine. Every android application runs in its own process and has a dalivk Virtual Machine instance. Every dvm is a
Each context has a looper handle the messages sent by each handler, and the function that Looper processes the message is:Msg.target.dispatchMessage (msg);Here msg is handler sent to Looper message, MSG bound handler, so there will not be a message
Address: http://www.cnblogs.com/tyb1222/archive/2012/04/12/2443857.html
In WCF, HTTP and Tcp Protocols are often used for duplex communication. The corresponding protocols are WsDualHttpBinding and NetTcpBinding. HTTP is based on the application
Bo Master is a junior college students, learning computer on the road, some of their own sentiment, write down to discuss with each other, welcome to spit Groove.There is always a certain interface between the Java module and the module, which can
This article is published in parallel, thank you for your attention.-http://www.jianshu.com/p/385327e35711Android developers have experienced the improper development of the app UI will cause overdraw, resulting in the app UI rendering too slow, but
# #一, direct getactivity, replace with activity's fragmenttransation as if replacedprivate void Changetoanotherfragment () {If the V4 package is used, use Getactivity (). Getsuppoutfragmentmanager ();Fragmentmanager fm = getactivity ().
Google has recently updated support Library 24.2.0, and Diffutil is a tool class added in this release.Diffutil is a tool class for finding sets of changes, and is used with Recyclerview, if you don't know Recyclerview, you can read some materials
Tag: offset with position imp settag position OTT problem visibleReprint please indicate source: http://blog.csdn.net/lmj623565791/article/details/37567907Stroll EoE found this UI effect, feel very good, and later know that there is an open source
Asynctask is the simplest way to perform a background thread, but it does not apply to repetitive and long-running tasks.1. LooperIn Android, a thread has a message queue, and a thread that uses Message Queuing is called a message loop. The message
Handlerthread Introduction:We know that thread threads are disposable, and threads are automatically destroyed when thread threads perform a time-consuming task. If I have another one at this timeA time-consuming task needs to be executed, we have
Handlerthread Brief Introduction:We know that the thread thread is a disposable consumer when the thread thread finishes running a time-consuming task. The thread will be destroyed on its own initiative. Suppose at this time I have
Thread Pool BenefitsIn a business scenario, it is recommended that pooled objects be managed at this time if an object creation destruction overhead is relatively large.For example, threads, JDBC connections, and so on, in high concurrency scenarios,
OverviewLexical analysis is the first step in the compilation phase. The task at this stage is to read the source program from left to right, one character at a time, to scan the character stream that makes up the source program and then recognize
http://kt8668.iteye.com/blog/205739The purpose of this article is not to introduce what technology to use, but to focus on its implementation principles.One, asynchronous and synchronousSpeaking of the popular point, asynchronous is not necessary to
Thread Pool BenefitsIn a business scenario, it is recommended that pooled objects be managed at this time if an object creation destruction overhead is relatively large.For example, threads, JDBC connections, and so on, in high concurrency scenarios,
callback function Learning in JavaBlog Category:
J2se
Javaj# is generally divided into the following steps:
The unified interface for declaring a callback function is interface A, which contains the method callback ();
The
In computer programming, a callback function, or callback, refers to a piece of executable code that passes through a function parameter to another code. This design allows the underlying code to invoke subroutines defined at the top level.Let's
Introduction: Android Custom view for beginners and even work for a few years of programmers are very afraid, but also is the Android advanced learning, peacetime projects often have some harsh requirements, we can find a variety of GitHub on the
Android micro-letter shake function to achieve, the recent learning of sensors, want to realize the function of shaking, the Internet to check some information on the collation. If there is a mistake, please correct me.
Development environment
The use of Java and contract friends may be future (interface) has been more familiar with, in fact, future itself is a widely used concurrent design patterns, to a large extent to simplify the need for data flow synchronization of concurrent
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