Discover xml file reader for android, include the articles, news, trends, analysis and practical advice about xml file reader for android on alibabacloud.com
Android deletes the new Android fragment_main.xml and androidmain. xml versions.In the new version of ADT, two xml files, fragment_main and activity_main, are generated by default when the android project is created.I suggest you delete the fragment_main
Pull parse XML files in much the same way that sax parses XML files, all based on event-driven. Therefore, the following steps are required to parse an XML file using Pull:
1) Get Xmlpullparser object through Xmlpullparserfactory.
2 The input stream is set through the Xmlpullparser object.
3 through Parser.next (),
. Find a text editor to view changes to plain text files.(4) Cross-platformCharacter encoding spans no matter what computer platform. What 32-bit system, 64-bit system. What Linux,windows,mac,ios, Android, treats plain text in a way that is consistent.1.2 Disadvantages(1) parsing cumbersome, no ready-made library availableDifferent configuration files often define their own detailed implementation format. This requires a custom parsing code. A slightl
Looking back at the previous articles, we add menu items directly to the code and group menu items. This is a traditional practice and it has some shortcomings. For example, to respond to each menu item, we need to use constants to save the ID of each menu item. Therefore, Android provides a better way, that isDefine menu as the application resource.With Android's local support for resources, we can easily create and respond to menus. This article des
pattern.The difference is that the numbers are returned during pull parsing, and we need to get the generated events ourselves and do the corresponding operations, instead of executing our code in a way that the processor triggers an event as SAX does:Read the declaration to XML return start_document; end return end_document; start tag return start_tag;The end tag returns End_tag;Comparison and summary of several analytic techniques:For
XML is widely used in various development scenarios, and Android is no exception. As an important role in carrying data, reading and writing XML has become an important skill in Android development.
In Android, common XML parsers
Everyone who has developed Android applications knows that the android project-res-layout resource folder stores XML files that control the view layout. We can use the getviewbyid (int I) method, construct the view and its subclass from XML. In this process, all layout attributes in the
I. BACKGROUND
Maybe a lot of people like me, have done a long time Android program, but have not seriously sit down and learn the layout of the XML file. In fact, sometimes we use the view to draw or use the ADT graphical interface features can easily handle the layout, but it is best to calm down to learn the layout of XML
, which will be placed on our server, the HTTP protocol to get this XML document, and then on our Android client to parse itLet's look at the tool class for DOM parsing server-side xml:public class domparserutils{public static listThe advantage of parsing XML through DOM is that we can access the neighboring nodes of a node at any time, and the insertion of the
Xml
A Writing to an XML file
1/**////2///write to XML file3///4private void WriteXml ()5{6/**////creates a string representing the path of the XML file to be generated. If the path points to an NTFS partition, the associated acces
Objective:
1. Learn how to set and call XML resources in Android
2. Master how to use XML and JAVA code for collaborative development interface
3. Understand the role of R files
When developing Android, you can always see an R. java file automatically generated by the syste
Learning objectives:
1. Learn how to set up and invoke XML resources in Android
2, master How to use XML and Java code for collaborative development interface
3, understand the role of R file
When you develop Android, you can always see a R.java
use the View Feature in XML.
For example, android: visibility = "invisible" makes the widget invisible, but retains its position. If it is "gone", the position is not reserved.
The color-related android: background can be a specific color, such as android: background = "# 0000ff" or an image, such as
A few days ago, with Dom4j wrote three versions of the read XML file, now share the next.First version:XML:dom4j reads this XML code as follows:public static void Read () {try {//Read and parse XML document//Saxreader is a pipeline that reads the XML
I came across a custom view in XML that was defined in the form of an inner class, resulting in some pits. Although by reading some of the predecessors wrote the article to solve the problem, but I see a few of them are not completely clear why, so decided to do this summary.
Rules for using custom internal Class View
This article is mainly to summarize why, so first of all in the XML layout
, Doc.getrootelement (), Ele.getname (), Ele.gettext (), and so on.
First, create the Saxreader instance reader, read the XML byte Stream Reader.read (IS)
Then, the root root node is obtained by Doc.getrootelement (), and the Eleroot.elementiterator () is obtained by using the iterator to get the sub node of the root level.
Then, the parsed XML content Xmlwrit
Android uses ViewStub for dynamic loading in layout xml, and androidviewstubAndroid uses ViewStub to perform dynamic loading in layout xml. I. Two common loading methods for Layout XML files:
1. Static Loading: The loaded modules are loaded at the same time as other modules.
2. Dynamic Loading: the module to be loaded
= document.createTextNode ("Understand Corba");
Converts the node into a child node of the BookName object
Booktitle.appendchild (BookName);
4.4 Converting DOM documents to XML files
Get the converter to convert the DOM document into an XML file, in jdk1.4, there are classes transformerfactory
To implement, the class transformer implements the transformation
To read security-sensitive items, the program must declare related permission requests in androidmanifest. xml. The complete list is as follows:Android. Permission. access_checkin_propertiesAllow read/write access to the "properties" table in the checkin database. You can modify the value of the table (allows read/write access to the "properties" table in the checkin database, to change values that get uploaded)An
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.