Mobile Develop

Example goal:in a displayed content area, touch the screen to display a context menu, and implement listening, when the Zecai item is selected, the content of the item that the user selects.  Implementation principle:1, to the content activity needs

Code EditionFirst step: Introduce the framework and introduce the Support class library (libsqlite3.0 Add)#import Declaring database objects@property (Nonatomic,strong) fmdatabase *database;Storage path@property (Nonatomic,strong) NSString *filepath;

Package Com.example.thirdweek;Import Android.os.Bundle;Import android.support.v4.app.Fragment;Import android.support.v4.app.FragmentActivity;Import Android.support.v4.app.FragmentManager;Import android.support.v4.app.FragmentTransaction;Import

Now many apps need to get user permissions, for example, allow to call location information, read text messages, make phone calls, turn on WiFi, turn on the camera, etc., the user does not allow the app to get these permissions. The best user

This from the practice of simple explanation:First, GCD is the acronym for the Grand Central Dispatch, meaning multithreading optimization technology, which is optimized for multi-core processing by Apple. Easy to use and clear.Multithreading is

Android face test summary Android Basics (vi) In the previous chapter Android face test summary of Android base ListView (V) is mainly the optimization of the ListView, the principle and some basic problems. If you have any questions

When using the Appcan mobile platform to develop cross-platform apps, there are some problems developers will encounter, not urgent, with the author to talk about the use of Appcan platform development of common problems in the solution.Q 1, normal

1. How did the problem occur and under what circumstances would such problems occur?This null pointer problem can occur when the user uses the Phone cleanup Assistant or the background to recycle our app, causing our application process to be killed,

One, the issue of version migration1. The creation function name of the game element Sprite, Label, action, etc. is changed to create.2. Callback for functionCallfunc_selectorCallfuncn_selectorCallfuncnd_selectorCallfunco_selectorMenu_selectorUse

Layoutinflater This class is useful in real-world development, and it acts like Findviewbyid (). The difference is that Layoutinflater is used to find the XML layout file under res/layout/and is instantiated, while Findviewbyid () is looking for

Top two we introduced the general optimization of the ListView method as well as the Disklrucache optimization listview, see Android-----Take you step by step to optimize the ListView (i) and Android-----Take youstep-by-step optimization of the

Uidatepicker *picker = [[Uidatepicker alloc] init]; Picker.datepickermode = uidatepickermodedate; Picker.locale = [[Nslocale alloc] initwithlocaleidentifier:@ "ZH_CN"]; setting up the keyboardSelf . MyField. Inputview = picker; //Set the

This article is intended to: by clicking on a picture toast output location and URL link.Gossip Less, the implementation of the principle is probably Jiangzi:: Through the regular expression detection of the rich text within the collection of

Android frosted glass effect, mainly found in the 3 implementation scheme,1, if the system's API is above 16, can use the system provides the method direct processing picture if (Build.VERSION.SDK_INT >) {bitmap Bitmap = sentbitmap.copy ( Sentbitmap.

=-= naming some errors, but feature implementation, later notice the naming specificationWJViewGroup.h#import@interfaceWjviewgroup:uiview {Nsinteger _width; Nsinteger _height;} @property (nonatomic,assign) Nsinteger widthnum; //how many of the

iOS native Cifilter Create two-dimensional code2016-05-31 Future CiOS native Cifilter Create two-dimensional codeAbout the two-dimensional code generation, online is also a lot, a long-ago third-party libraries are mostly written by C + +, but also

Unity Mono Address: Https://github.com/Unity-Technologies/mono Download Unity mono that corresponds to the unity version.Brew Installation: http://brew.sh/index_zh-cn.htmlMono needs autoconf Automake Libtool pkg-config these tools.Brew Install

1). Info.plist:iOS through it and app interactionthe Info.plist file contains metadata about your apps, which the system uses to interact with your app. The Information property List File Xcode uses information from the General, capabilities, and

nsurlsession VS nsurlconnection Nsurlsession can be seen as an evolutionary version of Nsurlconnection, and its improvements to Nsurlconnection are: * Configure on a per session basis (HTTP header,cache,cookie,protocal,credential) and no

Http://www.th7.cn/Program/Android/201507/514602.shtmlAppium testing via WiFi connection to the real machine 2015-07-24 19:43:07csdn-sunwangdian-hits: 4301. Install any ADB wireless2. Make sure the phone is rooted3, make sure the phone and PC in the