I am having a problem with merging two activities in Android Studio. I am new to coding and I know this should be relatively simple but I am slowly learning, so bear with me.
Basically my starting activity was a sample app that came with the IOIO development board. I have modified this to work for my application. I also have a MAX31855 thermocouple amplifier that I have found code for and it is working perfect, the only problem is that all of the code is in a separate activity from my sample app activity. So both will not run at the same time on my simple one screen app. So now I am trying to merge the thermocouple amplifier code into the sample app code. How should I start going about this? I have attached the code for both activities below.
The code for the sample app:
package ioio.examples.simple;
import ioio.lib.api.AnalogInput;
import ioio.lib.api.DigitalOutput;
import ioio.lib.api.IOIO;
import ioio.lib.api.exception.ConnectionLostException;
import ioio.lib.util.BaseIOIOLooper;
import ioio.lib.util.IOIOLooper;
import ioio.lib.util.android.IOIOActivity;
import ioio.lib.api.SpiMaster;
import ioio.lib.api.SpiMaster.Rate;
import android.os.Bundle;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.ToggleButton;
import java.util.ArrayList;
import java.util.List;
public class IOIOSimpleApp extends IOIOActivity {
private TextView boost;
private TextView fuelpressure;
private TextView ioioStatusText;
private TextView internalText;
private TextView thermocoupleText;
private TextView faultsText;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
boost = (TextView) findViewById(R.id.boost);
fuelpressure = (TextView) findViewById(R.id.fuelpressure);
ioioStatusText = (TextView) findViewById(R.id.ioio_status);
internalText = (TextView) findViewById(R.id.internal);
thermocoupleText = (TextView) findViewById(R.id.thermocouple);
faultsText = (TextView) findViewById(R.id.faults);
enableUi(false);
}
class Looper extends BaseIOIOLooper {
private AnalogInput boost, fuelpressure;
@Override
public void setup() throws ConnectionLostException {
boost = ioio_.openAnalogInput(45);
fuelpressure = ioio_.openAnalogInput(42);
enableUi(true);
}
@Override
public void loop() throws ConnectionLostException, InterruptedException {
setNumber1(38.314 * ((boost.getVoltage() - 0.27)));
setNumber2(38.314 * ((fuelpressure.getVoltage() - 0.27)));
Thread.sleep(200);
}
@Override
public void disconnected() {
enableUi(false);
}
}
@Override
protected IOIOLooper createIOIOLooper() {
return new Looper();
}
private void enableUi(final boolean enable) {
runOnUiThread(new Runnable() {
@Override
public void run() {
//seekBar_.setEnabled(enable);
//toggleButton_.setEnabled(enable);
}
});
}
private void setNumber1(double f) {
final String str = String.format("%.0f", f);
runOnUiThread(new Runnable() {
@Override
public void run() {
boost.setText(str);
}
});
}
private void setNumber2(double f) {
final String str = String.format("%.0f", f);
runOnUiThread(new Runnable() {
@Override
public void run() {
fuelpressure.setText(str);
}
});
}
}
And the code for the thermocouple amplifier:
package ioio.examples.simple;
import ioio.lib.api.SpiMaster;
import ioio.lib.api.SpiMaster.Rate;
import ioio.lib.api.exception.ConnectionLostException;
import ioio.lib.util.BaseIOIOLooper;
import ioio.lib.util.IOIOLooper;
import ioio.lib.util.android.IOIOActivity;
import ioio.lib.api.AnalogInput;
import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity extends IOIOActivity {
protected static final float FAULT_DISPLAY_DURATION = 10; // seconds
private TextView ioioStatusText;
private TextView internalText;
private TextView thermocoupleText;
private TextView faultsText;
private TextView boost;
private TextView fuelpressure;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ioioStatusText = (TextView) findViewById(R.id.ioio_status);
internalText = (TextView) findViewById(R.id.internal);
thermocoupleText = (TextView) findViewById(R.id.thermocouple);
faultsText = (TextView) findViewById(R.id.faults);
boost = (TextView) findViewById(R.id.boost);
fuelpressure = (TextView) findViewById(R.id.fuelpressure);
}
@Override
protected IOIOLooper createIOIOLooper() {
int sdoPin = 1; // DO
int sdaPin = 29; // we do not use this pin but the IOIOLib requires we specify it, so we pick an unused pin
int sclPin = 2; // CLK
int csPin = 3; // CS
Rate rate = SpiMaster.Rate.RATE_31K;
final MAX31855 max31855 = new MAX31855(sdoPin, sdaPin, sclPin, csPin, rate);
max31855.setListener(new MAX31855.MAX31855Listener() {
private long faultTime;
@Override
public void onData(float internal, float thermocouple) {
updateTextView(internalText, "Internal = " + internal + " C");
updateTextView(thermocoupleText, thermocouple + " C");
float secondsSinceFault = (System.nanoTime() - faultTime) / 1000000000.0f;
if (secondsSinceFault > FAULT_DISPLAY_DURATION) {
updateTextView(faultsText, "Faults = ");
}
}
@Override
public void onFault(byte f) {
List<String> faults = new ArrayList<String>();
if ((f & MAX31855.FAULT_OPEN_CIRCUIT_BIT) == MAX31855.FAULT_OPEN_CIRCUIT_BIT)
faults.add("Open Circuit");
if ((f & MAX31855.FAULT_SHORT_TO_GND_BIT) == MAX31855.FAULT_SHORT_TO_GND_BIT)
faults.add("Short To GND");
if ((f & MAX31855.FAULT_SHORT_TO_VCC_BIT) == MAX31855.FAULT_SHORT_TO_VCC_BIT)
faults.add("Short To VCC");
boolean first = true;
String text = "Faults = ";
for (String fault : faults) {
if (!first)
text += ", ";
text += fault;
}
if (faults.size() > 0) {
faultTime = System.nanoTime();
}
updateTextView(faultsText, text);
}
});
return new DeviceLooper(max31855);
}
private void updateTextView(final TextView textView, final String text) {
runOnUiThread(new Runnable() {
@Override
public void run() {
textView.setText(text);
}
});
}
/**
* This is the thread on which all the IOIO activity happens. It will be run
* every time the application is resumed and aborted when it is paused. The
* method setup() will be called right after a connection with the IOIO has
* been established (which might happen several times!). Then, loop() will
* be called repetitively until the IOIO gets disconnected.
*/
class DeviceLooper extends BaseIOIOLooper {
private IOIOLooper device;
public DeviceLooper(IOIOLooper device) {
this.device = device;
}
@Override
public void setup() throws ConnectionLostException, InterruptedException {
device.setup(ioio_);
updateTextView(ioioStatusText, "IOIO Connected");
}
@Override
public void loop() throws ConnectionLostException, InterruptedException {
device.loop();
}
@Override
public void disconnected() {
device.disconnected();
updateTextView(ioioStatusText, "IOIO Disconnected");
}
@Override
public void incompatible() {
updateTextView(ioioStatusText, "IOIO Incompatible");
}
}
}
I hope this makes sense and I have provided enough information. There is another separate activity for the MAX31855, but I assume this can be left untouched. Again, I am slowly learning how java and android studio works, I just can't seem to figure out how to merge these two activities without having a bunch of errors in the code. Any help is appreciated, thank you!
You need to consider three things.
1) main.xml Layout file in res->layout
2) AndroidManifest.xml in manifest folder
3) Single activity which include all codes.
All components should be initialized from a same activity (in your case MainActivity or IOIOSimpleApp).
Also remember to include all components (what you have initialized from activity) to the main.xml layout.
And try this
Hope this is work :)