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1. What is density
1) Density
Density represents the number of display points per inch (logical value), its unit is DPI:DOT/inch, usually large screen, density large, screen hours, density small, usually
When the actual screen resolution is 240px*400px, density=120
The actual screen resolution is 320px*533px,density=160
The actual screen resolution is 480px*800px,density=240
2) Resolution
Is the whole screen is how many points, such as 800x480, it is the software display unit
3 s
Http://www.cnblogs.com/lichenwei/p/3975095.htmlThe above article "Android Development Review Notes--tabhost component (i) (Achieve bottom menu navigation)" mentioned in the use of Custom view (Imageview+textview) to set a bottom menu styleHere, add a more flexible approach, you can hide tabwidget, use (Radiogroup+radiobutton) to replace, and use the listener's way to achieve monitoring click to jump activit
Android: Turn pages up and down, and turn pages up and down
If you achieve up or down the page flip effect, we use this open source project: https://github.com/openaphid/android-flip
Aphid FlipView is a UI component that enables Flipboard paging.
After the download is complete, import it to your current project. Let's
Failure phenomenon:
In the IE8, IE9 some "fast navigation" function in the IE10 has not.
Reason Analysis:
What is the fast navigation feature? When you open more than one tab, the quick navigation can render the page currently open, providing users with a quick choice of one-click.
Solution:
The quick navigation e
This article introduces how to turn off the default navigation sound in Windows 7 ?, Do not go to the reference page.
Knowledge Point Analysis:
Because the Windows 7 Family Basic edition operating system does not have the "personalized" option in the right-click menu on the desktop, the adjustment operations for the Home Basic edition operating system and the home advanced edition Professional Edition and
of the case.
Consistency, whether it is consistent with the interface style of other modules in the system, and whether it is consistent with the design of symmetric interfaces.
Simple and clear, the API should be easy to understand, and easy to learn and use is not easy to misuse, which brings us more trouble.
As few APIs as possible. If an API can be exposed or not exposed, do not expose it. It is
Original address: http://blog.sina.com.cn/s/blog_ae2575ff01018b2o.htmlUiautomator api:http://android.toolib.net/tools/help/uiautomator/index.htmlStarting with Android SDK API 16, the Android SDK starts supporting two new tools for functional UI testing.Uiautomatorviewer, a tool for scanning and analyzing UI widgets for Androi
).links to articles related to this:
. NET Networking APIs for UWP–HTTP://AKA.MS/DOTNETUWP
windows.devices.alljoyn–https://channel9.msdn.com/events/build/2015/2-623
Wi-Fi and Network Connectivity apis–https://channel9.msdn.com/events/build/2015/2-86
Wi-Fi Direct apis–https://channel9.msdn.com/events/build/2015/3-98
Hotspot 2.0 api–https://channel9.msdn.com/events/build/2015/2-80
Bluetooth apps–https://channel9.msdn.com/eve
to the download page as shown in the download successful, get a compressed package as shown: Eclipse for Java applications and Android development IDE (integrated development environment). Eclipse itself does not need to install, after downloading the decompression package directly after decompression can be used, as shown: To this, the eclipse of the download and installation work is complete. Fourth step: Download the
CodeUsing system;using system.io;using Word;namespace wpstopdf{class wps2pdf:idisposable {dynamic wps; Public Wps2pdf () {Here to create a WPS instance do not know what to use the Sao operation is not reported to miss the local installation is wps2016 Type type = Type.gettypefromprogid ("kwps.application"); NBS P wps = activator.createinstance (type); } public void to PDF (String wpsfilename, string pdffilename = null) { I F (wpsfilename = = null) {throw new ArgumentNullE
can be in: http://developer.android.com/guide/topics/resources/providing-resources.html# Alternativeresources, the following list:mccaaa: AAA is the mobile country code.mncaaa: AAA is the carrier/network code.En-rus: Language and region.SW: Smallest width, available width, available height (since API 13).small, normal, large, XLarge: Screen size.Long, Notlong: Screen type.Port, land: Portrait or landscape.car, desk: Type of docking.Night, Notnight: N
,bitmaps and Xml-basedview definitions. Automatically generated file R.java is a description of the resource, each automatically generated ID corresponds to an element in an XML file or an entire XML file. These are the XML definitions that developers can use with these IDs. This is useful for dealing with native locales, device sizing, and so on.Another new concept is content provider, the abstraction of a data source.Advanced UI Concepts. Android in
lock the canvas, draw a new image after it is called unlockcanvasandpost (canvas) to unlock (display), or more convenient.5. Talk about the MVC pattern principle, its use in Android:A: The official Android recommendation application is developed using MVC mode. What is MVC?MVC is an acronym for Model,view,controller, and MVC consists of three parts:L Model object: is the main part of the application, and all business logic should be written in that l
************************************************************)#$ (Error stop)#endifRe-make, if the JDK6 version is installed, will also error:Docs droiddoc:out/target/common/docs/api-stubsCould not load ' clearsilver-jni 'Java.library.path = Out/host/linux-x86/libMake: * * * [Out/target/common/docs/api-stubs-timestamp] Error 45Make: * * * waiting for unfinished jobs ....Could not load ' clearsilver-jni 'Jav
. The file is placed under the res/drawable/directory. Here's what my_round_red_retangle.xml.shape xmlns:android= "Http://schemas.android.com/apk/res/android" >The use of Java code is as follows, you can also use android:background= "@drawable/my_round_red_rectangle". Wei: According to the Android API guide, the type used is spandrawable, if so, error, or use gra
project is the design idea of strict separation of views view and model models.Address: http://www.apkbus.com/android-13514-1-1.html6, Foursquareis a client application of foursquare.com, which is mainly divided into two modules: API (com.joelapenna.foursquare) and interface Front end (com.joelapenna.foursquared). From this project code, you can learn how to synchronize, multi-threading, HTTP connections a
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