Mobile Develop

Flag selection#import "HMViewController.h"#import "HMFlag.h"#import "HMFlagView.h"@interfaceHmviewcontroller () @property (nonatomic,strong) Nsarray*flags;@end@implementationHmviewcontroller-(Nsarray *) flags{if(_flags = =Nil) {NSString*filepath = [[

Notation 1: Inner classDefine an inner class to implement the Onclicklistener interface, and then register an instance of the inner class with the button.Notation 2: Anonymous inner classnotation 3: Let the activity implement Onclicklistener

Last year Google's IO showed a new ListView, which is Recyclerview.Here is the official note, my English ability is limited, but I probably understand that: Recyclerview will be more scalable than the ListView, use more efficient, and more flexible,

I. Architecture of Android applicationsThe Android software hierarchy can be categorized from top to bottom: l Applications ( application) l application Framework (appliciation Framework) l Various libraries (Libraries) and

First worship the Great God's post, from the perspective of the source of the analysis of Android handler mechanism. Link:android message processing mechanism (figure + source analysis)--looper,handler,messageHere is not to explain, just do some

iOS design mode-builderSchematic diagramDescriptionThe generator pattern can be understood as a component assembly plant, very similar to the factory

Format date time for iOS development (RPM)When developing iOS programs, it is sometimes necessary to adjust the time format to the format you want, which we can do with the NSDateFormatter class.For example:Instantiate a NSDateFormatter

While the iphone is getting better, its functionality is becoming more complex, and performance has always been one of the core concerns of mobile development. We say an app performance is good, not simply refers to the feeling of running fast, but

please see:              This is the first Korean Samsung company in Russia taize ( tizen " smartphone (this year 6 month 2 Day). This means that tizen The operating system did not die. The taize operating system is defined

Project configuration Grdle ConfigurationGradle with Android StudioCompile ' de.greenrobot:greendao:1.3.7 'Compile ' de.greenrobot:greendao-generator:1.3.1 ' Project configuration Note that Src-gen is a new folder that we use to

[ Span style= "font-family: Song Body" > Description: This article is to read google thesis " dapper, a large-scale distributed Systems tracing Infrastructure ", complete translation can be referred to here   Other paper " uncertainty in

Recently in the mobile phone page, encountered the problem of digital input keyboard, the previous practice is only one-size-fits-all use type= "tel", but always think nine Gongge phone number on the keyboard of the English letter is too much of a

Write a homemade background image with Surfaceview, and you can move it, plus the Backgroundmanager class in the Android Aircraft War (a), you can use it directlyGameview Code:public class Gameview extends Surfaceview implements

because the project needs to draw a dashed line, initially want to use the picture repeat overlay implementation. A lap or a uiview.The code is as follows. h file#import @interface dasheslineview:uiview@property (nonatomic) Cgpoint startpoint;//

Wen YiI learned from the Apple documentation that the general application can get a certain amount of time to run the task in the background, that is, it can run in the background for a short period of time.There are also three kinds of types that

Android phones generally use the power button to lock the screen while turning off the screen light.In fact, starting with API Level 8 (that is, Android 2.2), Android provides the Devicepolicymanager class that allows your application to perform

Because of the actionbar between the different devices for the left side of the hidden part, 4.2 will have an ellipsis, and the previous version needs to click on the virtual key menu can be called out, this method is to cast the 4.2 version below

Some apps for Actionbar in AndroidSet up titles, icons, and custom labelsActionBar bar = Getactionbar ();HideBar.hide ();ShowBar.show ();Icon HideBar.setdisplayshowhomeenabled (FALSE);setting of IconsBar.setdisplayuselogoenabled (TRUE);hiding the

Cause: A,b,c three viewcontroller,a as the root view, B.view is added to a, and the Modal (Presentviewcontroller) POPs C in B.In this case, a caption warning will appear.Workaround:1. [self. View. Window. RootviewcontrollerPresentviewcontroller:

When accessing the local server via localhost or 127.0.0.1 in Android development, it will be reported Java.net.connectexception:localhost/127.0.0.1:8083-connection Refused Exception. Why do you report this anomaly? Because the Android emulator