Como listar arquivos da pasta raiz em Java ME
(Created page with 'Category:Java ME (Português)Category:Lang-PTCategory: Exemplos de código Java ME (Português) Original: How to list root file systems in Java ME (Inglês) ==R…') |
hamishwillee
(Talk | contribs) m (Bot change of links to internal format.) |
||
| Line 52: | Line 52: | ||
==Veja também== | ==Veja também== | ||
| − | * [ | + | * [[How to write data to a file in Java ME]] |
| − | * [ | + | * [[How to read an image from Gallery in Java ME]] |
| − | * [ | + | * [[How to list files and folders in Java ME]] |
Revision as of 06:33, 19 May 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();
}
}
