Mobile Develop

-(void) setnotification {[[Nsnotificationcenter defaultcenter] addobserver:self selector: @selector ( Keyboardwillchangeframe:) name:uikeyboardwillchangeframenotification Object:nil];} -(void) closenotification{[[Nsnotificationcenter Defaultcenter]

In general, there are four common ways to pass values between pages in iOS, 1 use sharedapplication to define a variable to pass .2 Use file plist, or nsuserdefault to pass3 pass through a single instance of class4 pass through Delegate . I'll start

Rxjava is now a very avant-garde asynchronous framework, but also because he is very new, so it is more difficult to navigate.Just like Okhttp calls its Cancel method directly in OnStop or OnDestroy, but Rxjava is not that simple.Because if each

1. LayoutThe interior of the layout, in addition to placing the controls, can also be placed in the layout, through the nesting of multiple layers of layout, we can do some more complex interface implementationFour basic layouts of

Use Cncontact to change Address Book additions and deletions in iOS developmentFirst of all, of course, the cncontact is included in the project:1 @import Contacts;1, the following is the increase of the Contact person Program

Most of the time, we don't use the checkbox style of the android comes with our UI, so we need to customize our checkbox.First look for two checkbox background images, like:Then, in the Drawable directory, define a background image XML file with the

AutoLayout is an "automatic layout" technique designed to lay out the UI interface AutoLayout easy to solve the two core concepts of screen adaptation issues AutoLayout: >1 reference: Set the current control location and size by referencing another

iOS Development UI chapter-Introduction to Core animationsFirst, Brief introductionCore Animation, the Chinese translation is a central animation, it is a very powerful set of animation processing API, using it can make very beautiful animation

First, the view test.storyboard Name of the controller that was created by the code load storyboard file is the file name, and the following storyboard is the filename extension1. This method is called after the application starts, and is no

The first chapter mainly outlines the Android system porting and driver development and our previous lesson content is similar, Android system architecture is divided into four layers: the Linux kernel (Android using LINUX2. Series as the kernel), C

This article turns from http://itindex.net/detail/15843-linux.linuxidc.com-%E8%B5%84%E6%96%99-android Shared by Yuan User name and password are www.linuxidc.com Linux.linuxidc.com-/2011 Information/android Getting Started tutorial/

Mobile Security Defender 03Things are a little messy today.First, Splash interface Software downloadXutils frame (four modules)–bitmaputils–httputils–dbutils–viewutils Progress bar Display Call the system installer to install the

Bitmap optimization The memory of a process can consist of 2 parts: native and Dalvik,dalvik are the Java heaps we normally call, the objects we create are assigned here, and bitmap are allocated directly on the native.Once the memory is

Public void Click1(View view) {/**/Creator of Dialog box * * Alertdialog.builder builder =NewBuilder ( This); Builder.settitle ("I am a dialog box"); Builder.setmessage (The dialog box displays the contents of the);/////******************************

BeginThrough the learning of JUnit (a) on the Android test journey, we have a preliminary understanding of JUnit's knowledge. Do you realize that it's not as difficult as you think? This chapter we continue to look at JUnit and what's fun. Today we

IOS provides 10 keyboard types, in development, we can choose different keyboard styles according to different needs, for example, when we only need to enter a mobile phone number, you can choose a pure numeric type of keyboard

First, Introduction NSOperationThe roleNSOperationIs the right GCD layer of encapsulation, more object-oriented. NSOperation NSOperationQueue Multi-threaded programming is also possible with the use of. NSOperationand

Ideas1 Trigger Event Setonitemclicklistener change checkbox2 Change the checkbox status in the adapter's GetView () to record the selected checkbox position3 Adapter provides method change checkbox4 Start GetView with notifydatasetchanged

First on:A normal listview on the left, nothing to say. As for the right side, when I saw the prototype first reaction was Listview+gridview (not used before Recyclerview), and the supervisor after the discussion suggested I use the recyclerliew to

Uitextfield->uicontrol->uiviewCommon Properties1. Convert picture objects to color objectsTextfield.backgroundcolor = [uicolor colorwithpatternimage:[uiimage imagenamed:@ "DOVE 1"]];2.borderStyle border StyleTextfield.borderstyle =