Mobile Develop

Basic points of knowledgedevice pixel : device pixel is also called physical pixel (physical pixel), the device can control the smallest unit of display, we can think of these pixels as a point on the monitor. The physical pixels of the iPhone5 are 6

Turn from:Use of CollapsingtoolbarlayoutNote: You need to add a design dependency package before using toolbar, you need to hide the header headerThe collapsingtoolbarlayout function is to provide a collapsible toolbar, which inherits to

Gets the current time based on Greenwich Mean time displayTime 8 hours UK Greenwich 7 HOURSNSDate *date = [NSDate Date];NSLog (@ "%@", date);Nszone Calculating time zonesGet a time parameter based on the current time is secondsNSDate *somedate =

The Uiresponder class for iOS controlsin iOS, the Uiresponder class is designed to respond to a user's actions to handle various events, and we know that uiapplication, UIView, Uiviewcontroller are directly inherited from Uiresponder, UIWindow is a

Operating system: Windows 7Software Environment: Visual C + + SP1This goal: to achieve a frame-free movementThe so-called Untitled Bar dialog box is a dialog-based project, with the dialog box property border set to None, and the dialog box looks

+ (BOOL) isnotiphone3g {static bool done = false;static bool Result;if (!done) {size_t size;sysctlbyname ("Hw.machine", NULL , &size, NULL, 0), char *machine = malloc (size), Sysctlbyname ("Hw.machine", Machine, &size, NULL, 0); NSString *platform =

What shipments of things down here don't talk about, but the decline in Xiaomi's sales fell out of the first three is already a fact of no earnings. A few days ago Xiaomi 5S released a curse, people do not sigh that once spirited millet in the end

Many of the complex and often changing pages in mobile apps use H5 instead of native, where they use the interaction of JS and WebViewiOS, UIWebView provides a method stringbyevaluatingjavascriptfromstring: To make JS and webview

1. Preparatory workAs the project is getting bigger and larger, there are more and more documents. Many times when the merge code is in conflict with the project file, it can be difficult to modify if the. xcodeproj file conflict is opened.So think

Alertdialog the first type: Customizable controls are free to customizeThe first step: Customizing the Popup page, creating a new XML page if you do not need activityStep two: Set a button popup page on the main page(The following is the main code

1, design ideas: For the package of SQLite, the use of defined categories to achieve the simplicity of the method, in order to achieve low coupling effect1 Controller code:2 #import "ViewController.h"3 #import "DatabaseHelper.h"4 5

These two days in a WAP page, on the chrome to simulate the mobile side, all good, but put on the phone test,Some click events are found to be unresponsive, but some respond;This small white in thinking, is it because my page is useful to the scroll

Pick up the articleOrthogonal procrustes problemGeneral analysis (procrustes )Tangled for a long time, still can not fully understand.singular value decomposition (singular value decomposition):, where,Frost Frobenius norm (Frobenius norm):Counting

Building projectsOne: Lib (Jar package for the framework and database-driven jar package)1, the first step: first put MyBatis Core class library into Lib2, Step two: Import a third-party class library (in Lib). The core class library of MyBatis also

itunes version: 12.5.1System version: MacOS Sierra 10.121. Download music and add to itunes.Now music is not an easy thing, after all, respect for copyright.The Mac version here is not the same as the Windows version, but it's easy to do."View local

The methods we use are as follows:Dimensions are in accordance withUigraphicsbeginimagecontext (Cgsizemake (+) ); // CurrentView The current view creates a bitmap-based graphics context and specifies a size of [Self.view.layer

This article then implement the "Confirm password" function, that is, the user has previously set the password, now only need to enter a confirmation passwordThis article address: http://www.cnblogs.com/wuyudong/p/5940718.html, reprint please

Image Amplification Method:this)" onmouseout= "Hui (this)" src= "c320_ 20160923147459793296513.jpg "/>The scrollbar position moves with the wheel to fix the method:$ (document). Ready (function (e){var off=$ (". T"). offset (); Gets the distance

This article implements the logical judgment of setting the password dialog boxThis article address: http://www.cnblogs.com/wuyudong/p/5940551.html, reprint please indicate the source.First, add the Listener event code for the button /*** Set

1, first on the virtual server computer can open http://localhost/2, in the external device access times the wrong: you don ' t has permission to access/in on the This serverWorkaround:1, bin\apache\apache2.4.9\conf Open in Wampserver installation