LedFragment.java

package com.integreight.onesheeld.shields.fragments;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

import com.integreight.onesheeld.R;
import com.integreight.onesheeld.enums.ArduinoPin;
import com.integreight.onesheeld.model.ArduinoConnectedPin;
import com.integreight.onesheeld.sdk.OneSheeldDevice;
import com.integreight.onesheeld.shields.ShieldFragmentParent;
import com.integreight.onesheeld.shields.controller.LedShield;
import com.integreight.onesheeld.shields.controller.LedShield.LedEventHandler;
import com.integreight.onesheeld.utils.ConnectingPinsView;
import com.integreight.onesheeld.utils.ConnectingPinsView.OnPinSelectionListener;

public class LedFragment extends ShieldFragmentParent<LedFragment> {

    ImageView ledImage;

    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.led_shield_fragment_layout, container,
                false);

    }

    @Override
    public void doOnViewCreated(View view, @Nullable Bundle savedInstanceState) {
        ledImage = (ImageView) view.findViewById(R.id.led_shield_led_imageview);
    }

    @Override
    public void doOnResume() {
        toggleLed(((LedShield) getApplication().getRunningShields().get(
                getControllerTag())).refreshLed());
    }

    @Override
    public void doOnStart() {
        ((LedShield) getApplication().getRunningShields().get(
                getControllerTag())).setLedEventHandler(ledEventHandler);
        ConnectingPinsView.getInstance().reset(
                getApplication().getRunningShields().get(getControllerTag()),
                new OnPinSelectionListener() {

                    @Override
                    public void onSelect(ArduinoPin pin) {
                        if (pin != null) {
                            (getApplication().getRunningShields()
                                    .get(getControllerTag()))
                                    .setConnected(new ArduinoConnectedPin(
                                            pin.microHardwarePin,
                                            OneSheeldDevice.INPUT));
                            if (getApplication().isConnectedToBluetooth())
                                toggleLed(getApplication().getConnectedDevice().digitalRead(pin.microHardwarePin));
                        } else {
                            ((LedShield) getApplication().getRunningShields()
                                    .get(getControllerTag())).connectedPin = -1;
                            toggleLed(false);
                        }

                    }

                    @Override
                    public void onUnSelect(ArduinoPin pin) {
                        // TODO Auto-generated method stub

                    }
                }); // TODO Auto-generated method stub
    }

    private LedEventHandler ledEventHandler = new LedEventHandler() {

        @Override
        public void onLedChange(final boolean isLedOn) {
            // TODO Auto-generated method stub
            uiHandler.post(new Runnable() {

                @Override
                public void run() {
                    if (canChangeUI()) {
                        toggleLed(isLedOn);
                    }
                }
            });

        }
    };

    private void toggleLed(final boolean isOn) {
        uiHandler.removeCallbacksAndMessages(null);
        uiHandler.post(new Runnable() {

            @Override
            public void run() {
                if (isOn) {
                    ledImage.setImageResource(R.drawable.led_shield_led_on);
                } else {
                    ledImage.setImageResource(R.drawable.led_shield_led_off);
                }
            }
        });
    }

    private void initializeFirmata() {
        if (getApplication().getRunningShields().get(getControllerTag()) == null) {
            getApplication().getRunningShields().put(getControllerTag(),
                    new LedShield(activity, getControllerTag()));
        }

    }

    @Override
    public void doOnServiceConnected() {
        initializeFirmata();

    }

}