Website: http://blog.csdn.net/zhou1232006/article/details/6149548An in-depth understanding of the three registers of arm is of great benefit to both programming and porting of the operating system.1. Stack pointer R13 (SP): Each anomaly pattern has its own independent R13, which usually points to the stack dedicated to the exception mode, i.e. five exception modes, non-exception modes (user mode and system mode), each with separate stacks, indexed by
are shorter than the phone screen, some are longer than the screen, on the tablet and mobile phone compared to the difference is more obvious.DipExactly the same as DP, except the name is different. The dip was used in earlier versions of Android, and the DP name was later recommended for unification with SP.Sp:Abstract pixels independent of scale (Scale-independent Pixel). The SP and DP are similar but the only difference is that the Android system
Difference between dip, dp, sp, pt and px in Android, androiddip
1. Overview
In the past, programmers often designed computer user interfaces in pixels. For example, the image size is 80x32 pixels. The problem with this processing is that if you run the program on a new display with a dot (dpi) higher per inch, the user interface will look small. In some cases, the user interface may be small to difficult to see the content. Therefore, we can solve th
Reference:1. Change the sharedpreferences storage path using the Java reflection mechanism Singleton19002. Android Rapid Development series 10 commonly used tools class HongyangImportandroid.app.Activity;ImportAndroid.content.Context;ImportAndroid.content.ContextWrapper;Importandroid.content.SharedPreferences;ImportJava.io.File;ImportJava.lang.reflect.Field;Importjava.lang.reflect.InvocationTargetException;ImportJava.lang.reflect.Method;ImportJava.util.Map; Public classSputil {/**the path of the
In Android development, when it comes to screen video problems, the conversion between PX, DP, SP is an important part, so Yang Brother a tool class for everyone.Package com.zw.express.tool;Import Android.content.Context;Import Android.util.DisplayMetrics;/*** YDC* @author Administrator**/public class Densityutils {/*** Switch from Dip unit to PX (pixel) According to the resolution of the phone*/public static int dp2px (context context, float Dpvalue)
AutoscreenadaptationAndroid screen adaptation items directly with the DP and SP can be added without modification directly into a code to achieve the adaptationNot sure if there will be compatibility issues and performance issues that require time testingAt present, the different resolutions of the simulator are tested and the basic effect of different DPI is not much worse.Rotating the screen layout scales the view by the size of the horizontal versi
An in-depth understanding of SP, LR, and PC in-depth understanding of the three registers of arm is of great benefit to both programming and porting of the operating system.
1. Stack pointer R13 (SP): Each anomaly pattern has its own independent R13, which usually points to the stack dedicated to the exception mode, i.e. five exception modes, non-exception modes (user mode and system mode), each with separa
Tags: style blog HTTP Io OS ar use for SP
(3) URL
As a B/S system, in SharePoint attributes, method parameters, and return values, a large number of URLs are involved. In general, the URLs involved can be divided into the following four categories:
Absolute path:The complete URL contains the protocol header (HTTP or HTTPS), port number, host name, and so on, for example, http: // myserver/subweb/doc
1. There are two basic operations on the stack: Inbound and Outbound
2. The elements at the top of the stack always last in the stack, first out of the stack, and then in and out.
3. The 8086cpu provides the inbound and outbound commands. The two most basic commands are push (inbound) and POP (outbound)
Push ax refers to sending the contents of the ax register to the stack, and pop ax refers to pulling data from the top of the stack and sending it to the ax register.
The inbound and outbound ope
We often encounter the following requirements:
We can create An ASPX page, deploy it to the 12 \ template \ layouts directory, and install it using feature (if there is a DLL, copy to the \ bin directory of the corresponding SharePoint site ).There is no problem with this, but the _ layouts directory is accessible to all sites. I need to achieve this: http: // mossdemo/onesite/customapp/custompage1.aspxThe current implementation is:Http: // mossdemo
Microsoft SharePoint Foundation has two types of pages: Application page and Site Page ).
Both application page and Site Page inherit the layout from the same master page.
The application page is most similar to the traditional Microsoft ASP. NET 3.5 web page. However, the application page is not directly derived from system. Web. UI. Page, but from layoutspagebase or unsecuredlayoutspagebase. The application page does not run in safe mode and may con
Android in Dip, DP, PX, SP and screen density 1. Dip:device independent pixels (device independent pixels). Different devices have different display effects, this is related to the device hardware, generally we support WVGA, HVGA and QVGA recommended use this, do not rely on pixels.It is important to note that dip is related to screen density and that the screen density is related to specific hardware and that the hardware settings are incorrect and m
First refbase in the C + + part of Android is as a base class for all classes, which functions like an object in Java. A private member exists in this class:weakref_impl* const mrefs;(Weakref_impl is a subclass of Weakref_type)This mrefs is a "shadow object" and is the key to managing the reference count of an objectRefbase is constructed in Mrefs (new Weakref_impl (This)), new is a Weakref_impl object, Weakref_impl's constructor parameter is Refbase's pointer and initializes the WEAKREF_IMPLMst
Dip:device independent pixels (device independent pixels). Different devices have different display effects, this is related to the device hardware, generally we support WVGA, HVGA and QVGA recommend this, do not rely on pixels.Px:pixels (pixels). Different devices show the same effect, generally we hvga represent 320x480 pixels, this use more.Pt:point, is a standard length unit, 1pt=1/72 inches, for the printing industry, very simple to use;mainly used for font display of best for textsize.As a
This article links http://blog.csdn.net/xiaodongrush/article/details/295604311. What do designers and developers agree on to develop an android APP?First, choose a mainstream model.Then, the designer based on the screen size of the model design, give the PX unit labeling.Finally, according to the model, we can calculate the conversion method of PX and DP, and set the dimension of DP unit according to the dimensions of PX unit.Note: 1DP=1DIP=1SP, for the general long-width DP or dip can be,
I. Overview
We often set the container length during page layout, but we are annoyed by which unit of length should be used.
The following types of description areas are supported in Android.
Px (pixels)-pixels: different devices have the same display effect. Generally, hvga represents 320x480 pixels, which is usually used.
Dip (device independent pixels) -- device independent pixel: This is related to the device hardware. Generally, we recommend that you use this parameter to support wcga, hvga
1. OverviewIn the past, programmers often designed computer user interfaces in pixels. For example, the image size is 80x32 pixels. The problem with this processing is that if you run the program on a new display with a dot (dpi) higher per inch, the user interface will look small. In some cases, the user interface may be small to difficult to see the content. Therefore, we can solve this problem by developing a program using a measurement unit unrelated to the resolution. Android Application De
1. Example of creating an SP through WP, such as:int main () {A * PA = new A ();Wpsp}2. Implementation of the promote function:TemplateSpRetrun sp}3. TemplateSP: M_ptr (P refs->attemptincstrong (This)) p:0) {}4. BOOL Refbase::weakref_type::attemptincstrong (const void* ID) {Incweak (ID); Adds a reference count, at which point the weak reference count is 2.weakref_impl* Const IMPL = static_castint32_t Curco
Add SP value-added services in PHP. now, you need to add SP value-added services to a website, including user registration, sending verification text message codes, completing registration, and sending member identity verification long codes, I have not yet received the mobile port and protocol yet. I want to prepare the protocol in advance. please advise me how to prepare the protocol. I also heard that PH
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