×
Namespaces

Variants
Actions
(Difference between revisions)

Como listar arquivos da pasta raiz em Java ME

From Nokia Developer Wiki
Jump to: navigation, search
hamishwillee (Talk | contribs)
m (Hamishwillee - Automated change of category from Lang-PT to Unlikely Category. (Moving))
hamishwillee (Talk | contribs)
m (Hamishwillee - Bot addition of Template:ArticleMetaData)
Line 1: Line 1:
[[Category:Java ME]][[Category:Lang-Portuguese]][[Category:Code Examples]]
+
{{ArticleMetaData
 +
|sourcecode= <!-- Link to example source code e.g. [[Media:The Code Example ZIP.zip]] -->
 +
|installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
 +
|devices= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') -->
 +
|sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) -->
 +
|platform= <!-- Compatible platforms - e.g. Symbian^1 and later, Qt 4.6 and later -->
 +
|devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) -->
 +
|dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 -->
 +
|signing=<!-- Signing requirements - empty or one of: Self-Signed, DevCert, Manufacturer -->
 +
|capabilities=<!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
 +
|keywords= <!-- APIs, classes and methods (e.g. QSystemScreenSaver, QList, CBase -->
 +
|id= <!-- Article Id (Knowledge base articles only) -->
 +
|language=Lang-Portuguese
 +
|translated-by= <!-- [[User: XXXXX]] -->
 +
|translated-from-title=<!-- Title only -->
 +
|translated-from-id= <!-- Id of translated revision -->
 +
|review-by=<!-- After re-review: [[User:username]] -->
 +
|review-timestamp=<!-- After re-review: YYYYMMDD -->
 +
|update-by=<!-- After significant update: [[User:username]]-->
 +
|update-timestamp=<!-- After significant update: YYYYMMDD -->
 +
|creationdate=20090917
 +
|author=[[User:Maiconherverton]]
 +
}}[[Category:Java ME]][[Category:Lang-Portuguese]][[Category:Code Examples]]
  
 
Original: [[How to list root file systems in Java ME]] (Inglês)
 
Original: [[How to list root file systems in Java ME]] (Inglês)

Revision as of 07:30, 10 November 2011

Article Metadata

Artigo
Criado por maiconherverton em 17 Sep 2009
Última alteração feita por hamishwillee em 10 Nov 2011

Original: How to list root file systems in Java ME (Inglês)

Resumo

Como listar arquivos da pasta raiz em Java ME. A API FileConnection(JSR-75) e seu método FileSystemRegistry.listRoots() existem para este fim.

O código para teste do MIDlet:

Código fonte: RootMIDlet.java

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.util.Enumeration;
import javax.microedition.io.file.*;
 
public class RootMIDlet extends MIDlet implements CommandListener {
private Form form;
private Command exitCommand;
 
public void startApp() {
form = new Form("Root list");
exitCommand = new Command("Exit", Command.EXIT, 1);
form.addCommand(exitCommand);
form.setCommandListener(this);
Display.getDisplay(this).setCurrent(form);
createRootList();
}
 
public void pauseApp() {
}
 
public void destroyApp(boolean unconditional) {
}
 
protected void createRootList() {
form.append("Roots:\n");
Enumeration drives = FileSystemRegistry.listRoots();
while (drives.hasMoreElements()) {
String driveString = drives.nextElement().toString();
form.append(driveString + "\n");
}
}
 
public void commandAction(Command c, Displayable d) {
if (c == exitCommand) this.notifyDestroyed();
}
}

Veja também

87 page views in the last 30 days.
×