Mobile platform front-end development is a site adaptation for high-end smartphones (such as iPhone and Android), that is, webapp, not for general mobile phones, so read this articleArticleIn the past, you needed to have a certain understanding of WebKit kernel browsers and HTML5 and css3.
1. First, let's take a look
Work needs to write a document, sent in this for your reference, if you need to translate into Chinese please leave a message.What is Genymotion?
Basically genymotion is a front end app that hooks into the Oracle VirtualBox API and gives your advanced emulation and dev Elopment features.
It also have a portal where you log in and download pre-formatted virtual machines already configured with various Popula R distros of
background: the percentage of the distance or distance the user is moving.
This example is fully implemented by the front-end verification code generation, verification function, because:
1 Practice customizing view, all of your own to pull the verification of the drawing, feel cool.
2 I will not do backstage, manual smile.
Core point:
1 generation of irregular graphics path.
2 Specifies path to bitmap, anti-aliasing.
3 Suitable for ImageView
In the previous article, there are many performance and memory tips that need to be noted in the development of Android apps. This article is an analysis of performance optimization and memory optimization issues from the Smali instruction level.How to solve the problem of high interface start time overheadWhen we write Android applications, there are many situat
Amaplocationclient (getactivity ()); Mlocationoption = new Amaplocationclientoption (); Set the location monitoring Mlocationclient.setlocationlistener (this); Set to high precision positioning mode Mlocationoption.setlocationmode (AMapLocationClientOption.AMapLocationMode.Hight_Accuracy); Set positioning Parameters Mlocationclient.setlocationoption (mlocationoption); This method initiates a loca
(); if (locationclient!=nulllocationclient.isstarted ()) {locationclient.stop (); Locationclient=null; } }}SummaryBecause the small series is clumsy, so study for a long time to solve, the above analysis belongs to their own understandinglocationclient belongs to the client, the client by setting the location of the listener event to achieve the location of the acquisition, should not note that when the program ends, you locate the client:locationclient Should be in the off
not destroy all the resources of the App if the resources are not actually insufficient. Therefore, even if all the components of an App are destroyed, the App will not end automatically.
When the system is in a shortage of resources, Dalvik is responsible for deciding which process to Kill. Which process is determined based on?
Based on App visibility and component running status, the system performs hierarchical processing on processes. That is to
connections only consume Faster: 1 million messages seconds push arrives terminal, concurrency high, fast stable.Iv. expansion of services1. Customize your app's websiteCustom domain name: Good remember funny, you decide;Multi-template selection: Many templates you pick, there is always a suitable for you!SEO optimization: Wine is also afraid of Deep alley, set good keywords, seo optimization to help you easily on the headlines.2. Advertising revenue
End of Path (pseudo) Author Micro-blog: @GcsSloop "related articles in this series"Have experienced the basic operation of path and the path of the Bezier curve, this chapter finally into the end of path, this article after the completion of the path of most of the relevant methods have been explained, but path there are some more interesting gameplay, it should be in the subsequent article appears, Ah, sho
. xml file with the following code:
Here, I adjusted the background color of ActionBar, the title text color and size, and the sub-menu background color to make it exactly the same as the overall style, the images used are also saved in the drawable folder. I have introduced the methods for customizing ActionBar styles in the previous article. If you are not familiar with the methods, you can refer to them again.
Finally, you need to make some modifications to Andro
activity_main.xml and selecting the Graphical Layout tab at the bottom of the XML edit box. As we expected, TextView accounted for 1/5 of the space.OK, we can start writing our button, we will implement the button element, the style of naming the operand with Btn_operand, the style of naming the operator with Btn_operate, and Btn_operate will inherit the Btn_operand style, Then re-set the background and text color, which is the same as using CSS.Preview the interface. As we have imagined.The re
is not an arrayTo enable chained queries that support query results, realm customizes a collection type. Can enumerate, but is not familiar with the array anymore. Because of the lazy loading mechanism of realm, it is not recommended to turn this enumeration into an array type at the data layer. The disadvantage is that the upper layer knows the storage logic of the data. Strictly speaking, we should not let the upper level know. But this design may be to facilitate the retrieval of the upper l
version of Dragonfly click on the remote debugging settings port in the upper right cornerStep three: Enter Opera:debug in the simulator to set the port connection.Details: Opera desktop version of the debugger is actually not dragongly, lower version (10.52).Advantages and Disadvantages: simple and convenient, supporting the simulation of various models of the display effect. However, it is not possible to select elements in an unfriendly manner.Way Three: weinre (web in remote)Step One: Insta
lack of resources, Dalvik would not destroy all the resources of the app. So, even though all the components of an app are destroyed, the app doesn't end automatically.When the system is in a resource shortage, Dalvik is responsible for deciding which process to kill. So what is the basis for deciding which process to make?Based on the visibility of the app and its component operation, the system processes the process hierarchically. In other words,
First, click Input,textarea,select and other form elements, there is an extra text windowWorkaround:input,textarea,select{-webkit-appearance:none;-webkit-tap-highlight-color:rgba (0,0,0,0);-webkit-user-modify:read-write-plaintext-only;}Note:-webkit-user-modify affects the Password box, the Password box displays clear text, so it is used alone.Two: Scroll bar setting problemThrough Overflow:scroll can make the content can be scrolled, but no physical elasticity, relatively stiff, no scroll bar. I
High imitation Yahoo weather for Android (2) --- code structure analysis
In this example, six library codes and one master project code are used.
Shows the code of one or six databases:
Where
①. MenuDrawer, ViewPagerIndicator, ShowcaseView, and SwipeBack are all well-known open-source libraries on the sidebar menu on Github. I have not made any changes here and I will directly reference them. Thanks for
on.Com.way.db: That is, the project uses the database management class, on a file Cityprovider.java, I prefer to use contentprovider, do feel more convenient than the direct operation of the database, and can simultaneously process a database of multiple tables, but the URI is different, switch Case, you can judge more.Com.way.fragment: This project uses the fragment, only one file.Com.way.ui.view: All Custom view, which is worth mentioning is Touchdispatchview, as the name implies is assigned
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