MidiScope/Application/src/main/java/com/example/android/common/midi/MidiPortSelector.java [54:89]:
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    public MidiPortSelector(MidiManager midiManager, Activity activity,
            int spinnerId, int type) {
        mMidiManager = midiManager;
        mActivity = activity;
        mType = type;
        mAdapter = new ArrayAdapter<MidiPortWrapper>(activity,
                android.R.layout.simple_spinner_item);
        mAdapter.setDropDownViewResource(
                android.R.layout.simple_spinner_dropdown_item);
        mAdapter.add(new MidiPortWrapper(null, 0, 0));

        mSpinner = (Spinner) activity.findViewById(spinnerId);
        mSpinner.setOnItemSelectedListener(
                new AdapterView.OnItemSelectedListener() {

                    public void onItemSelected(AdapterView<?> parent, View view,
                            int pos, long id) {
                        mCurrentWrapper = mAdapter.getItem(pos);
                        onPortSelected(mCurrentWrapper);
                    }

                    public void onNothingSelected(AdapterView<?> parent) {
                        onPortSelected(null);
                        mCurrentWrapper = null;
                    }
                });
        mSpinner.setAdapter(mAdapter);

        mMidiManager.registerDeviceCallback(this,
                new Handler(Looper.getMainLooper()));

        MidiDeviceInfo[] infos = mMidiManager.getDevices();
        for (MidiDeviceInfo info : infos) {
            onDeviceAdded(info);
        }
    }
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MidiSynth/Application/src/main/java/com/example/android/common/midi/MidiPortSelector.java [54:89]:
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    public MidiPortSelector(MidiManager midiManager, Activity activity,
            int spinnerId, int type) {
        mMidiManager = midiManager;
        mActivity = activity;
        mType = type;
        mAdapter = new ArrayAdapter<MidiPortWrapper>(activity,
                android.R.layout.simple_spinner_item);
        mAdapter.setDropDownViewResource(
                android.R.layout.simple_spinner_dropdown_item);
        mAdapter.add(new MidiPortWrapper(null, 0, 0));

        mSpinner = (Spinner) activity.findViewById(spinnerId);
        mSpinner.setOnItemSelectedListener(
                new AdapterView.OnItemSelectedListener() {

                    public void onItemSelected(AdapterView<?> parent, View view,
                            int pos, long id) {
                        mCurrentWrapper = mAdapter.getItem(pos);
                        onPortSelected(mCurrentWrapper);
                    }

                    public void onNothingSelected(AdapterView<?> parent) {
                        onPortSelected(null);
                        mCurrentWrapper = null;
                    }
                });
        mSpinner.setAdapter(mAdapter);

        mMidiManager.registerDeviceCallback(this,
                new Handler(Looper.getMainLooper()));

        MidiDeviceInfo[] infos = mMidiManager.getDevices();
        for (MidiDeviceInfo info : infos) {
            onDeviceAdded(info);
        }
    }
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