Java Development

[kris0725pl]

I have problem with store volume player on exit applicstion.

The player gets the data from

_currentVolume = 50;

and

int _currentVolume;

I know how to store data from LabelField, but i know how to store Integer from player value

Any help me with this questions?

This is my code for get:

public void Get() { 
synchronized (store) { 
  _data = (Vector) store.getContents(); 
 
  if (!_data.isEmpty()) { 
StoreInfo info = (StoreInfo) _data.lastElement();
mylabel.setText(info.getElement(StoreInfo.INFO));
} 
} 
};

[rabiray]

You can get the level from VolumeControl interface...

Have a look into the media demo.

SendMediaDemo with in BB Sample projects.

[simon_hain]

if you want to persist the value you can wrap it into an Integer object (which is persistable)

[kris0725pl]

I have code...

_player.realize();
volumeControl = (VolumeControl) _player.getControl("VolumeControl");
    volumeControl.setLevel(_currentVolume);
    setVolume(_currentVolume);

and try like this but not working :)

info.setElement(StoreInfo.VOL2, volumeControl.getLevel());
                       

 I got this error...

setElement(int,java.lang.String) in USERSTATION.StoreInfo cannot be applied to (int,int)
info.setElement(StoreInfo.VOL2, volumeControl.getLevel());

I programming 2 month...and understand all.

[simon_hain]

use http://www.blackberry.com/developers/docs/7.1.0api/java/lang/Integer.html#Integer(int) to store an int value, and http://www.blackberry.com/developers/docs/7.1.0api/java/lang/Integer.html#intValue() to retrieve it from the object.

int is a primive type, Integer is the matching object. you can persist an object, but not the primitve type, so you have to convert one into another.

[rabiray]

try this

info.setElement(StoreInfo.VOL2, String.valueOf(volumeControl.getLevel()));

[kris0725pl]

I set for Save method this code

public void Save() { 
 StoreInfo info = new StoreInfo(); 


Integer.toString(StoreInfo.VOL2, volumeControl.getLevel());
 
 
  _data.addElement(info); 

EDIT: My code not working...

i try your code a moment Restart BB

This code dont work...i cant exit from application when use them.

public void Save() { 
 StoreInfo info = new StoreInfo(); 

info.setElement(StoreInfo.VOL2, String.valueOf(volumeControl.getLevel()));
 
 
  _data.addElement(info); 
  synchronized (store) { 
   store.setContents(_data); 
   store.commit(); 
 }
}; 
 
 public void Get() { 
synchronized (store) { 
  _data = (Vector) store.getContents(); 
 
  if (!_data.isEmpty()) { 
StoreInfo info = (StoreInfo) _data.lastElement();


I dont know how to  :) 
 
 } 
} 
};

[kris0725pl]

Anybody help me?

I use this but not working...why?

public void Save() { 
 StoreInfo info = new StoreInfo(); 



info.setElement(StoreInfo.VOL2, String.valueOf(volumeControl.getLevel()));
 
 
  _data.addElement(info); 
  synchronized (store) { 
   store.setContents(_data); 
   store.commit(); 
 }
 
 //Dialog.inform("Success!"); 
   
  
 }; 
 
 public void Get() { 
synchronized (store) { 
  _data = (Vector) store.getContents(); 
 
  if (!_data.isEmpty()) { 
StoreInfo info = (StoreInfo) _data.lastElement();


volumeControl.setLevel(info.getElement(StoreInfo.VOL2));
 
 
 } 
} 
};

 I got this error:

 setLevel(int) in javax.microedition.media.control.VolumeControl cannot be applied to (java.lang.String)
volumeControl.setLevel(info.getElement(StoreInfo.VOL2));

[simon_hain]

use Integer, not String. It is possible to use String, of course, but it does not make sense when dealing with a primitve int.

[kris0725pl]

I try everything But nothing works for me

I add this code and application works very fine....

String str = "30";

int _currentVolume = Integer.parseInt(str);

 Application starts and volume is 30...supa ^^ But when add this code for store, application cant open

I got This error in EventLog:

guid:0x9C3CD62E3320B498 time: Mon May 28 12:39:07 2012  severity:1 type:3 app:Java Exception data:
	ArrayIndexOutOfBoundsException
	1 >= 1
	net_rim_cldc(4BA7D958)
	 Vector
	 elementAt
	 0xC85C
	App(4FC354D2)
	 SOME$StoreInfo
	 getElement
	 0x4F66
	...

public void Save() { 

 StoreInfo info = new StoreInfo(); 

 info.setElement(StoreInfo.SMS, basicEditField2.getText());//This works fine

info.setElement(StoreInfo.VOL, String.valueOf(volumeControl.getLevel()));

  _data.addElement(info); 
  synchronized (store) { 
   store.setContents(_data); 
   store.commit(); 
 }
 

   
  
 }; 
 
 public void Get() { 
synchronized (store) { 
  _data = (Vector) store.getContents(); 
 
  if (!_data.isEmpty()) { 
StoreInfo info = (StoreInfo) _data.lastElement();



basicEditField2.setText(info.getElement(StoreInfo.SMS));//Works fine
Integer.parseInt((String)info.getElement(StoreInfo.VOL));


 } 
} 
};
 
static final class StoreInfo implements Persistable { 
 
  private Vector _elements; 
 
  
   public static final int SMS = 0;
public static final int VOL = 1;
 
  

public StoreInfo() { 
 
  _elements = new Vector(2); 
 
for (int i = 0; i < _elements.capacity(); ++i) { 
    _elements.addElement(new String("")); 
  }  
} 
 
  public String getElement(int id) { 
   return (String) _elements.elementAt(id); 
 } 
  public void setElement(int id, String value) { 
   _elements.setElementAt(value, id); 
 } 
 
} 
 
 
 static { 
store = PersistentStore.getPersistentObject (0xdec6a67096f839cL); 
   synchronized (store) { 
  if (store.getContents() == null) { 
     store.setContents(new Vector()); 
     store.commit(); 
   } 
  } 
   _data = new Vector(); 
   _data = (Vector) store.getContents(); 
} 

 Where is the problem??? I cant understand yet