Android Start Service Without Activity

More than once, more than one person asked the question. I answered: no need. But keep it in the record. Let's start by understanding the system's internal mechanisms for application management. For the Android system, it includes processes and services. "Process" has a running, also has just left in the background cache. A "service" is an interface-free, long-running application feature that is not easily terminated. We know that Android can be done quickly via the homepage key (home) or by using the return key (←) gradually ...

Summary: Apple November 18 officially released the WatchKit development tool, unveiling the Apple Watch Interactive logic and many UI element details. Although the current Apple Watch is not yet released, with official materials, we have been able to more specifically feel and imagine Apple November 18 officially released the WatchKit development tool, unveiled the Apple Watch interactive logic and many UI element details. Although the current Apple Watch real machine has not been released, but by virtue of the official ...

class= "Post_content" itemprop= "Articlebody" > Think of that year, the habit of clearing memory. When Android was not born, when we used Windows, we had to turn off all the unused processes so that we wouldn't "take up memory" or "CPU", and the computer wouldn't "card". (Most of the "Security software" is to help users in Windows to clear memory, garbage and ...

This article summed up the first half of 2013 years on the line or relatively high domestic outstanding start-up companies, content from the Tianya Sea Pavilion on the weekly Web2.0share weekly selection of domestic start-ups: Voice360 is through the phone horn to send audio signals (with 10K of silent Signal), And then use the microphone to receive decoding to achieve close range of data exchange of the Trans-era technology, voice360 SDK, can quickly integrate acoustic communication functions, to achieve close range of data exchange, authentication, file sharing. Link: htt ...

1. Definitions of some conceptual patterns: Each pattern describes a problem that continues to occur in our environment, and then describes the core of the solution to the problem. In this way, you can use the existing solutions countless times without having to repeat the same work. What is a design pattern? A design pattern is a typical, generic solution to a problem in a particular situation. We need to properly understand and learn some design patterns, in the process of development, will always involve some framework design, module design and other things, if you can understand and transport ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall today in 2011 Global Entrepreneurship Week China Station activities, the famous angel investor Shire made a keynote speech. 　　He noted that recent Internet investments had cooled from venture capital and PE, and that the next few months would be a cooling period for investment. The following is a transcript of the speech: Thank you very much for starting a new invitation to Pong. Now talk about entrepreneurship, I have a micro-Boda, I personally think everyone should spend a little more time on Weibo, I think Weibo is a very good communication platform. First, every day we go to ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host Technology Hall This article has counted the Chinese 17 pioneering company's effort and the failure experience, among them many million tang, cool 6, the blog China, the Rice No, the street and so on the big brand, is worth the reference and the reference. 1, billion Tang network many people still remember the 2000 Beijing Street appeared large and small billion tang billboard, "Today you are billion tang" that sentence imitate Yahoo advertising words really let billion tang scenery for a while. Yi Tang wants to be a comprehensive Internet portal for young Chinese. They define the year of China ...

Every week, the upbeat Phil Johnson helps to deliver important news and headlines in the tech world in a relaxed and enjoyable way. 　　--Boss, to be on the safe side, the IT department elves suggest you update your antivirus software and move Kim Jong-un from the "Bad Boy" list to the "Good Boy" list. December 24--Santa Claus has learned from Sony for years, it has been thought that the most wanted gift for the North Korean leader during Christmas is a sock coal. However, in the ...

According to the report, only 15% of users in China download apps are willing to pay. How do developers attract users to agree to pay? In my opinion, the determinants are not consumption and consumption, but good product and market environment, which is essential. 　　This requires developers to be disciplined and able to offer better products to users, and I'm sure consumers will be happy to pay for them. First, let the user truly become your user: Aarrr model AARRR is acquisition, activation, Retention, Re ...

All consumer-focused application developers should address the following three core challenges: a differentiated product experience that forms a user base, an expanding number of users to maintain user participation in the Mobile world, and a few strategies and methods to cover these three points. 　　Next, I will take these three points apart to talk about and in the end to put forward the important issues in my heart. Creating a unique product experience so far, the mainstream of mobile design has been the definition of small screen, touch gesture template and the replacement of interface navigation. The promotion of these aspects is heavy ...