UniPay SDK Guide for Android  0.02.011
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Implement OnReceiverListener for the activity:

In the class that will be a delegate of UniPay, implement OnReceiverListener. Add the implemented methods to eliminate any error messages.

public class MainActivity extends Activity implements OnReceiverListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public void AutoConfigCompleted(StructConfigParameters arg0) {
// TODO Auto-generated method stub
}
@Override
public void AutoConfigProgress(int arg0) {
// TODO Auto-generated method stub
}
@Override
public void ICCNotifyInfo(byte[] arg0, String arg1) {
// TODO Auto-generated method stub
}
@Override
public void LoadXMLConfigFileInfo(int arg0, String arg1) {
// TODO Auto-generated method stub
}
@Override
public void deviceConnected() {
// TODO Auto-generated method stub
}
@Override
public void deviceDisconnected() {
// TODO Auto-generated method stub
}
@Override
public boolean getUserGrant(USER_GRANT_TYPE arg0, String arg1) {
// TODO Auto-generated method stub
return false;
}
@Override
public void msgAudioVolumeAjustFailed(String arg0) {
// TODO Auto-generated method stub
}
@Override
public void msgToConnectDevice() {
// TODO Auto-generated method stub
}
@Override
public void plugStatusChange(DEVICE_INTERFACE_Types arg0, boolean arg1) {
// TODO Auto-generated method stub
}
@Override
public void swipeMSRData(IDTMSRData arg0) {
// TODO Auto-generated method stub
}
@Override
public void timeout(String arg0) {
// TODO Auto-generated method stub
}
}