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  RMS problem  (Read 951 times)
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Offline monopolyli

Senior Newbie




Java games rock!


« Posted 2005-04-24 16:37:21 »

After I installed an application to my phone, and the application contains a RMS. When I run this application, it can save my highest score.
However, after I closed my application, all data (record) will be lost.
Does it is possible to make a permanent database in the application?
Thanks a lot!
My RMS to open a database is:
public static RecordStore openRSAnyway (String rsname)
{

RecordStore rs = null;

if(rsname.length()>32)
return null;
try {
rs = RecordStore.openRecordStore(rsname, true);
return rs;
} catch (Exception e)
{
return null;
}
}

public static RecordStore openRSExisted(String rsname)
{
RecordStore rs = null;
if (rsname.length()>32)
return null;
try {
rs = RecordStore.openRecordStore(rsname, false);
return rs;
} catch (Exception e)
{
return null;
}
}

public static int writeInt2RS(RecordStore rs, int data)
{
byte []tmp = new byte[4];
tmp[0] = (byte)(0xff&(data>>24));
tmp[1] = (byte)(0xff&(data>>16));
tmp[2] = (byte)(0xff&(data>>Cool);
tmp[3] = (byte)(0xff&(data>>0));
try
{
return rs.addRecord(tmp, 0, tmp.length);
} catch(Exception e)
{
}
return -1;
}

Offline Abuse

JGO Knight


Medals: 15


falling into the abyss of reality


« Reply #1 - Posted 2005-04-24 19:53:45 »

you are calling closeRecordStore(), arn't you?

If you don't, its upto the implementation to decide whether to actually save your data, or to simply discard it.

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Offline monopolyli

Senior Newbie




Java games rock!


« Reply #2 - Posted 2005-04-25 09:04:20 »

I called closeRecordStore() already:
public class GameScreen extends Canvas {
..............
rs = RMSUtil.openRSAnyway(dbname);
.........
public void paint() {
................
rs = RMSUtil.openRSExisted(dbname);
if (rs==null)
{
g.setColor(255, 255, 255);
g.drawString("Your Score "+String.valueOf(spriteScore), 0, 20, Graphics.TOP|Graphics.LEFT);
}
else {
try {
if (spriteScore>=RMSUtil.readInt4RS(rs, r1)) {
r1 = spriteScore;
r1 = RMSUtil.writeInt2RS(rs, spriteScore);
g.setColor(255, 255, 255);
g.drawString("Highest Score" +String.valueOf(RMSUtil.readInt4RS(rs, r1)), 0, 40, Graphics.TOP|Graphics.LEFT);
rs.closeRecordStore();
}
else
{
g.setColor(255, 255, 255);
g.drawString("Highest Score " +String.valueOf(RMSUtil.readInt4RS(rs, r1)), 0, 40, Graphics.TOP|Graphics.LEFT);
rs.closeRecordStore();
}
} catch (Exception e) {}
}
.............
}
.............
..........
}

But it doesnt work, did I have another thing go wrong?
Thanks for your reply


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Offline Abuse

JGO Knight


Medals: 15


falling into the abyss of reality


« Reply #3 - Posted 2005-04-25 10:36:37 »

The number of calls to open and close must both match.

Your example above appears to open it twice, and close it only once.

Make Elite IV:Dangerous happen! Pledge your backing at KICKSTARTER here! https://dl.dropbox.com/u/54785909/EliteIVsmaller.png
Offline monopolyli

Senior Newbie




Java games rock!


« Reply #4 - Posted 2005-04-25 15:54:48 »

I tried to close the record store.
But it also saves the record during the game is running, and the record will lost after I close the application.
Huh
Thanks for your reply
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