Hmm.. Her er koden jeg gerne vil have det ind i:
/**
* @author Gordon Endersby
* Example Android widget to receive xml and display
* it a formatted manner on the home screen
*
*/
package dk.nextsms.android.widget;
import java.net.URL;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.xml.sax.InputSource;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.widget.RemoteViews;
import android.util.Log;
/**
* The class representing our widget
*
*/
public class NextSMSWidget extends AppWidgetProvider {
// Global variables
private String wStationURLXml = "
http://example.com/test.php"; // Url for the xml
/**
* Gets the component name representing this widget.
* Needed in onReceive to get the WidgetIds.
*/
static final ComponentName THIS_APPWIDGET =
new ComponentName("dk.nextsms.android.widget", "dk.nextsms.android.widget.NextSMSWidget");
/*
* Override of android.appwidget.AppWidgetProvider#onReceive(android.content.Context, android.content.Intent)
* Receives any Intents aimed at the widget as defined in the widgets manifest.
* In this case listens for the click on the title text field in the widget
*/
@Override
public void onReceive(Context context, Intent intent)
{
super.onReceive(context, intent);
String text = "";
// Is this our click intent
if(intent.getAction().equals("dk.nextsms.android.widget.CLICK"))
{
// Get the AppWidgetManager and AppWidgetIds from the context as they are out
// of scope of this overridden method.
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
int[] appWidgetIds = appWidgetManager.getAppWidgetIds(THIS_APPWIDGET);
// Display a warning that the text is updating
UpdateTextField(context, appWidgetManager, appWidgetIds, "Opdaterer");
// Get the text to display
text = GetText( wStationURLXml);
// Display the text in the widget
UpdateTextField(context, appWidgetManager, appWidgetIds, text);
}
}
/*
* Override of android.appwidget.AppWidgetProvider#onUpdate(android.content.Context, android.appwidget.AppWidgetManager, int[])
* Specific to this widget. Called by the home screen when it needs all the widgets
* on the screen to be updated and when the widget is first added to the home screen.
*/
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
String text = "";
// Adds the onClick action to all instances of the widget
final int N = appWidgetIds.length;
for (int i=0; i<N; i++)
{
int[] appWidgetId = appWidgetIds;
RemoteViews views=new RemoteViews(context.getPackageName(), R.layout.main);
Intent clickintent=new Intent("dk.nextsms.android.widget.CLICK");
PendingIntent pendingIntentClick=PendingIntent.getBroadcast(context, 0, clickintent, 0);
views.setOnClickPendingIntent(R.id.title, pendingIntentClick);
appWidgetManager.updateAppWidget(appWidgetId, views);
}
// Display a warning that the text is updating
UpdateTextField(context, appWidgetManager, appWidgetIds, "Updating");
// Get the text to display
text = GetText( wStationURLXml);
// Display the text in the widget
UpdateTextField(context, appWidgetManager, appWidgetIds, text);
}
/**
* Gets the value from the tag without formatting
* @param tag - Name of tag
* @param doc - DOM representing the XML
* @return - String value
*/
private static String getTagValue(String tag, Document doc) {
Element intElement = (Element) doc.getElementsByTagName(tag).item(0);
return intElement.getChildNodes().item(0).getNodeValue();
}
/**
* Gets the value from the tag with a little padding out of the returned string
* @param tag - Name of tag
* @param doc - DOM representing the XML
* @return - String value
*/
private static String getTagValueTemp(String tag, Document doc) {
Element intElement = (Element) doc.getElementsByTagName(tag).item(0);
String temp = intElement.getChildNodes().item(0).getNodeValue();
if (temp.length() == 4){ temp = " " + temp;}
return temp;
}
/**
* Updates the text displayed in the widget
* @param context - Context of the widget and its environment on the home screen.
* @param appWidgetManager - widget manager.
* @param appWidgetIds - ID's of any instance of the widget on the home screens
* @param text - Text to display.
*/
private static void UpdateTextField(Context context,AppWidgetManager appWidgetManager, int[] appWidgetIds, String text){
// Change the text in the widget
RemoteViews updateViews = new RemoteViews( context.getPackageName(), R.layout.main);
updateViews.setTextViewText(R.id.text, text);
appWidgetManager.updateAppWidget(appWidgetIds, updateViews);
}
/**
* Gets the XML response from the server and formats it for display
* @param siteUrl - URL of server.
* @return - Returns text string.
*/
private static String GetText( String siteUrl){
String one = "";
String text = "";
Boolean success = true;
Log.d("NextSMS Widget" ,"Text in" + text);
try {
// Get the xml from the server specified in siteUrl
URL url = new URL(siteUrl);
// Create a factory that will take the xml and turn it into
//a DOM (Document Object Model)
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
// Parse the stream of xml returned from the server to create the DOM in doc
Document doc = dBuilder.parse(new InputSource(url.openStream()));
doc.getDocumentElement().normalize();
// Get the contents of the tags we want to display
one = getTagValue("main", doc);
} catch (Exception e){
// There's a lot that can go wrong here with the internet connection
// so we catch exceptions and add them to the system log.
// This is viewable while the Android device is connected to the
// pc using the ddms tool supplied with the sdk.
success = false;
Log.d("NextSMS widget" ,e.toString());
return e.toString();
}
// Build the text string to display
if (success){
Log.d("NextSMS WIdget" ,"Succses got xml, changing text");
text = one;
} else {
text = "Unable to update";
}
Log.d("NextSMS Widget" ,"Text out" + text);
// Return the text
// If the fetch of the xml was unsuccessful keep the old text contents
return text; // Return the text
}
}
Jeg vil gerne have så den tjekker om filen eksisterer / indeholder et telefonnummer. Ellers skal den komme med en "Indtast nummer" side, og så gemme i filen. Ellers skal den hente indholdet i filen, og gemme i en variabel. Men kan ikke få det til at virke.. :(
