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simple use of intent transfer data in android:1. Pass data using intent:first put the data that needs to be passed into the intentIntent Intent = new Intent (mainactivity.this,otheractivity.class);Intent.putextra ("name", " passing Data
Following previous article: http://blog.csdn.net/gaopeng0071/article/details/45153495This article primarily records activity delivery data to the service.The source code and the previous article is basically consistent, but in the jump process to increase the transfer of parameters.Let's look at the effect first.1.2, through the above, you can see the activity page value changes, the corresponding backgroun
In Android, the standard Java interface httpurlconnection and Apache interface httpclient are provided, which provides rich support for HTTP programming on the client. Get and post are the most commonly used in HTTP Communication. GET requests can obtain static pages, or they can place parameters after URL strings and pass them to the server. The difference between post and get is that the post parameter is not placed in the URL string, but in the H
Recently, due to project requirements, tcpdump is currently used 1. Get the root permission on the mobile phone It is too cumbersome to use the CMD Tool to download the root mobile phone. We recommend a "Zhuo master brush expert" tool ., Master Zhuo (PC): http://www.dashi.com/product/5.html. After the installation is downloaded, The rootprogram is installed on the zookeeper tool. The root mobile phone may have some problems. At first, I downloaded some files and root them through cmd. As a re
1.JSON (JavaScript Object Notation) is a lightweight data interchange format. It is based on a subset of JavaScript (standard ECMA-262 3rd edition-december 1999). JSON takes a completely language-independent text format, but also uses a similar idiom to the C language family (c, C + +, C #, Java, JavaScript, Perl, Python, etc.). These features make JSON an ideal data exchange language. Easy to read and writ
machine generated */#include 3, write the C language codeBefore the second step we compiled the function signature of the header file, so here we need to use the method in the file to sign, a total of 3 such native functions, the implementation of the function is this:#include 4. Configure the Android.mk file Local_path: = $ (call My-dir) include $ (clear_vars) local_module : = Hello local_src_files: = hello.c Local_ldlibs + =-llog include $ (build_shared_library)Light
When running each application, the Android system creates a application object that stores the public variables associated with the entire application. An Android application generates only one application object, and the Application object is the same in the unused activity, so the Application object is a single instance (SingleTon). Application objects are ideal for storing
JSON is an XML-like common data Interchange Format, which has higher transfer efficiency than XML; This article will introduce two methods of parsing JSON data, the need for friends can refer to the followingJSON is a common XML-like data interchange format that has a higher transf
(" Results of database queries===", "+++");Cursor. Close();DB. Close();}} ?Recently a lot of things have happened, because the internship of the company side of some problems, there is an urgent transfer of the company's ideas. So upgrading your skills has become the most pressing thing at the moment. Future blogs will be on the Android Training side in succession.Of course, if you encoun
code in the activity:[Java]View Plaincopyprint? Intent mintent = new Intent (this, address activity. Class); Bundle Mbundle = new Bundle (); Transfer data using parcelable Mbundle.putparcelable ("Data", Mbook); Transfer data using Serializable
Using the Clipboard to pass data, you can pass simple data, or you can pass a serializable object.Let's start with a simple point.First, add a button to the Mainactivity.xml file.Privatebutton button; @Overrideprotected voidonCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); //TODO auto-generated Method StubButton = (Button) This. Findvi
In some projects, multiple applications exist, so data transmission between applications becomes inevitable. How can we implement data transmission between applications? We know that data transmission across activities can be achieved through the combination of Bundle and Intent. Can this method be used for data transm
Android data loading and Json parsing-Framework Version Method call New ApiUser (this). initData (new ApiRequest () {@ Override public void onResult (BeanRequest bean) {// if the interface call fails, the prompt if (! Bean. isSuccess () {UtilToast. show (Activitymain. this, bean. getErrInfo (), UtilToast. STYLE_ERROR);} // Json data parsing: BeanInitData
JSON is an XML-like common data Interchange Format, which has higher transfer efficiency than XML; This article will introduce two methods of parsing JSON data, the need for friends can refer to the followingJSON is a common XML-like data interchange format that has a higher transf
how to parse the Web page data. The main case of this blog post is to parse the list of songs in the Web page, and the address is: Http://music.baidu.com/top/new/?pst=shouyeTopWeb interface:This page is the homepage of Baidu Music, contains the new song leaderboard, the project is to parse this page to get the song list.First, Android implements the following interface:Parse the page and then get the Web p
methods such as:[OperationContract] [WebInvoke (UriTemplate="Getpersonpostbyid", Requestformat = Webmessageformat.json, Responseformat = Webmessageformat.json, Method ="POST")] PublicUser Getuserpostbyid (User u) {return NewUser {age =" the", ID ="005", Name ="Laoliu" }; }This is different because the body format of the transfer is JSON format, so you need to add Content-type in the POST request, the detailed code is as follows: Public vo
There are several ways that Android can submit data to the server, how they use it, here we explore.The example here is to submit the client's username and password, and the Streamtools.readinputstream (is); The function is to transfer the input into a string, which is a public class. I've introduced it earlier. Http://www.cnblogs.com/fengtengfei/p/3969520.html,
JSON (JavaScript Object Notation): A lightweight data Interchange format based on a subset of JavaScript. JSON makes JSON an ideal data exchange language, using a completely language-independent text format. Easy to read and write, but also easy to machine parse and build (network transfer speed). As a data interchange
Use httpclient for Get-mode communication, to establish network links through HttpClient, to read data using the HttpGet method, and to get the entity return value through response.Use httpclient for post communication, to establish network links through HttpClient, to use the HttpPost method to transfer data and read data
The Android system creates an object of the application class for each program runtime and creates only one, so application can be said to be a class of singleton patterns. And the life cycle of the Application object is the longest in the whole program, and its life cycle is equal to the life cycle of the program. Because it is a global singleton, the objects obtained in different activity,service are the same object. So through the application to do
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