Null point Exception while sending message - quickblox

Question

I have added new class file under /com.quickblox.q_municate/ui/friends. I want to send message to another user. I have written code using Quickblox API, code is as follows.
public class ChangeDSConfiguration extends Activity{
TextView OpenSwitchRelayFor;
TextView OpenPowerRelayFor;
TextView PowerRelayCode;
TextView SwitchRelayCode;
TextView SecretPassword;
EditText OpenSwitchRelayForValue;
EditText OpenPowerRelayForValue;
EditText PowerRelayCodeValue;
EditText SwitchRelayCodeValue;
EditText SecretPasswordValue;
Button ChangeConfiguration;
String password;
String configurationDetails;
int id;
public static void start(Context context, int id) {
Intent intent = new Intent(context, ChangeDSConfiguration.class);
intent.putExtra(QBServiceConsts.USER_ID, id);
context.startActivity(intent);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_change_dsconfiguration);
id = getIntent().getExtras().getInt(QBServiceConsts.USER_ID);
Log.e("ChangeConfig", "id = "+id);
OpenSwitchRelayFor = (TextView) findViewById(R.id.openSwitchRelayFor);
OpenPowerRelayFor = (TextView) findViewById(R.id.openPowerRelayFor);
PowerRelayCode = (TextView) findViewById(R.id.powerRelayCode);
SwitchRelayCode = (TextView) findViewById(R.id.switchRelayCode);
SecretPassword = (TextView) findViewById(R.id.secretPassword);
OpenSwitchRelayForValue = (EditText) findViewById(R.id.etOpenSwitchRelayFor);
OpenPowerRelayForValue = (EditText) findViewById(R.id.etOpenPowerRelayFor);
PowerRelayCodeValue = (EditText) findViewById(R.id.etPowerRelayCode);
SwitchRelayCodeValue = (EditText) findViewById(R.id.etSwitchRelayCode);
SecretPasswordValue = (EditText) findViewById(R.id.etSecretPassword);
ChangeConfiguration = (Button) findViewById(R.id.changeConfiguration);
ChangeConfiguration.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
showAskForSecretPasswordDialog();
}
});
}
public void showAskForSecretPasswordDialog(){
LayoutInflater inflater = getLayoutInflater();
View view = inflater.inflate(R.layout.layout_enter_password, null);
final EditText secret_password;
secret_password = (EditText) view.findViewById(R.id.secretPassword);
secret_password.setText("");
secret_password.setFocusable(true);
AlertDialog.Builder askForPasswordDialog = new AlertDialog.Builder(ChangeDSConfiguration.this);
askForPasswordDialog.setView(view);
askForPasswordDialog.setCancelable(false);
askForPasswordDialog.setPositiveButton("Continue", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
password = secret_password.getText().toString();
Log.e("FriendsListFragment", "password = " + password);
if(password.equals("")){
Toast.makeText(ChangeDSConfiguration.this, "Please enter password before you continue", Toast.LENGTH_LONG).show();
return;
}else{
password = "Change Configuration:" + password; // frame relay code message, with header and relay type
sendConfigurartionDetails(password);
finish();
}
}
});
askForPasswordDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
return ;
}
});
askForPasswordDialog.setTitle(R.string.title_enter_relay_code);
askForPasswordDialog.setMessage(R.string.message_enter_relay_code);
askForPasswordDialog.show();
return;
}
public void sendConfigurartionDetails(String password){
if (!QBChatService.isInitialized()) {
Log.e("ChangeConfig", "(!QBChatService.isInitialized())");
QBChatService.init(this);
}
configurationDetails = password + ":" + getConfigurationDetails();
Log.e("ChangeDSConfig", "configurationDetails = "+configurationDetails);
try {
QBChatMessage message = new QBChatMessage();
message.setBody(configurationDetails);
QBPrivateChatManager privateChatManager = QBChatService.getInstance().getPrivateChatManager();
Log.e(" ChangeDSConfig", "id = "+id);
QBPrivateChat privateChat = privateChatManager.getChat(id);
Log.e(" ChangeDSConfig", "getChat(id);");
if (privateChat == null) {
privateChat = privateChatManager.createChat(id, null);
Log.e(" ChangeDSConfig", "Private chat created");
}
privateChat.sendMessage(message);
Log.e(" ChangeDSConfig", "Power Relay Code sent");
} catch (XMPPException e) {
Toast.makeText(ChangeDSConfiguration.this,e.getMessage(), Toast.LENGTH_LONG).show();
} catch (SmackException.NotConnectedException e) {
Toast.makeText(ChangeDSConfiguration.this,e.getMessage(), Toast.LENGTH_LONG).show();
}
}
public String getConfigurationDetails(){
String str1 = OpenSwitchRelayForValue.getText().toString();
String str2 = OpenPowerRelayForValue.getText().toString();
String str3 = PowerRelayCodeValue.getText().toString();
String str4 = SwitchRelayCodeValue.getText().toString();
String str5 = SecretPasswordValue.getText().toString();
String str6 = str1 + ":" + str2 + ":" + str3 + ":" + str4 + ":" + str5 ;
return str6;
}
}
I am getting Null point exception here
QBPrivateChat privateChat = privateChatManager.getChat(id);

Answer 1

Apparently the previous call returns null:
QBChatService.getInstance().getPrivateChatManager();
Check your getPrivateChatManager() implementation.