MyApp.java
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package android.serialport.api;
import java.io.File;
import java.io.IOException;
import java.security.InvalidParameterException;
import android.app.Application;
import android.content.Context;
import androidx.multidex.MultiDex;
import etelligens.com.foodsafety.utils.LocaleHelper;
public class MyApp extends Application{
public SerialPortFinder mSerialPortFinder = new SerialPortFinder();
private SerialPort mSerialPort = null;
public SerialPort getSerialPort() throws SecurityException, IOException, InvalidParameterException {
if (mSerialPort == null) {
/* Open the serial port */
mSerialPort = new SerialPort(new File("/dev/ttyMT2"), 9600, 0);
}
return mSerialPort;
}
public void closeSerialPort() {
if (mSerialPort != null) {
mSerialPort.close();
mSerialPort = null;
}
}
protected void attachBaseContext(Context base) {
super.attachBaseContext(LocaleHelper.onAttach(base));
MultiDex.install(this);
}
}