Mobile Develop

Previous projects, primarily for iOS, were not tested on Android.The principle is actually the system comes with the function, at that time borrowed from other website, did not experiment through Document.execcommand ("Copy"), other JS way.Now there

iOS notification mechanism 1. Define a method -(void) update{} 2. Object registration, and connected messages [[Nsnotificationcenter Defaultcenter] Addobserver:self selector: @selector (update) name:@ "Update"

One, the OBJECTIVE-C runtime defines several important types. Class: Defining the Objective-c Class Ivar: Defines an instance variable of an object, including the type and name. Protocol: Define formal agreements.

Menus are widely used in desktop applications, and the menu is reduced by a number of mobile apps due to mobile screen constraints.Menus in Android apps are not visible by default, and only when the user clicks the menu key on the phone does the

Mobile address adaptation

-(void) createcell{Scrollerarr= self.infoarray[0]; //Create_scrollerview = [[Uiscrollview alloc] Initwithframe:cgrectmake (0,0, Screen_size.width, Scrollerview_hight)]; _scrollerview.contentsize= Cgsizemake (Scrollerarr.count *screen_size.width,

First, the bottom realization1, the bottom of the AFN implementation of OC-based nsurlconnection and Nsurlsession 2, ASIbottom-level implementation of Cfnetwork framework based on pure C language 3, because Nsurlconnection and nsurlsession is a

Android Studio Runtime appears finished with non-zero exit value 2 Error analysisReason:Project contains two different project or jar with the same package nameExample:1, when the A module has V4 package, B module also has V4 bag, this will appear

Mobile applications in the processing of network resources, generally do offline cache processing, which is the most typical picture cache, where the popular offline cache framework is sdwebimage. However, offline caching takes up storage space on

Understanding ConceptsFirst, we must make clear that the image compression is actually two concepts: "Pressure" refers to the size of the file is smaller, but the number of pixels unchanged, the length and width of the dimensions are

Both apply () and call () are methods that inherit another object, inheriting a variable from another object.Cases:function Person (name,age) {this.age=age;this.name=name;} function Student (name,age,grade) {this.grade=grade; Person.apply

23: Addsubview and Insertsubview differencesAddsubview is the topmost layer that adds the view to all layers equivalent to setting the Insertsubview atindex parameter to View.subviews count, which is [view addsubview:oneview] = = [view Insertsubview:

iOS emulator input under Xcode7 cannot be used on the system keyboard and can only be entered with a computer keyboard, which may cause trouble with debugging.In fact, Xcode7 under the iOS simulator can only use one, either the simulator system

Reprinted from: http://pybeta.com/2016/06/about-gradle/Android gradle Configuration Compilation accelerationIn the gradle.properties configure1 org.gradle.configureondemand=true #demand2org.gradle.daemon=true

Title Link: http://acm.split.hdu.edu.cn/showproblem.php?pid=5234problem Descriptiontoday isGorwin ' s birthday. So she mother want to realize her a wish. Gorwin says that she wants to eat many cakes. Thus, her mother takes she to a cake garden. The

The shadow of this thing, said the word long, many years ago people began to study a variety of shadow technology, but there are all kinds of flaws and problems, until recently in the PSSM, that is, CE3 CSM, shadow technology is a relatively perfect

-(BOOL) Validatelianxu: (NSString *) password{    NSString *last = @ "";    int sub = -1;    fo R (int i = 0; i1 | | Sub IOS Determines if user set password is too simple (such as 123,456,111)

After 2, 32 steps, the remaining portlets are not many, add the application page as follows:Hide the unused portlets: Portal directory (portal directory)Move the inline protlet and IFRAME portlet into the tool category.To modify

1. Modify NavigationbarNavigationbar actually has three sub-views, Leftbarbuttonitem,rightbarbuttonitem, and Titleview.1.1 Method One: Alloc a uinavigationbar, and give alloc out of the Navigationbar set button and view, and the system Navigationbar

After knowing the basic activity life cycle, we are able to do a good job of doing business on an activity. But this is not enough, because Android through the task stack to save the entire app activity, reasonable scheduling task stack to provide a