Ayyagaries · March 29, 2019 13:36
diff --git a/MainActivity.java b/MainActivity.java
 package com.ix.ebadgesdk.sample;

 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.app.ActivityCompat;
 import androidx.recyclerview.widget.DefaultItemAnimator;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 import no.nordicsemi.android.ble.data.Data;

 import android.Manifest;
 import android.app.Dialog;
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothGatt;
 import android.bluetooth.BluetoothGattService;
 import android.bluetooth.BluetoothManager;
 import android.bluetooth.BluetoothProfile;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Color;
 import android.os.Bundle;
 import android.text.InputType;
 import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.LinearLayout;
 import android.widget.ToggleButton;

 import com.afollestad.materialdialogs.MaterialDialog;
 import com.afollestad.materialdialogs.folderselector.FileChooserDialog;
 import com.afollestad.materialdialogs.simplelist.MaterialSimpleListAdapter;
 import com.afollestad.materialdialogs.simplelist.MaterialSimpleListItem;
 import com.github.rtoshiro.util.format.SimpleMaskFormatter;
 import com.github.rtoshiro.util.format.text.MaskTextWatcher;

 import com.ix.ebadgesdk.CmdController;
 import com.ix.ebadgesdk.EBadgeBleManager;
 import com.ix.ebadgesdk.EBadgeBleManagerCallback;
 import com.ix.ebadgesdk.Utils;
 import com.ix.ebadgesdk.bean.ImageConfig;
 import com.ix.ebadgesdk.bean.ImageData;

 import org.apache.commons.io.IOUtils;

 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.nio.charset.Charset;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.UUID;

 import static com.ix.ebadgesdk.EBadgeBleManager.bytesToHex;

 public class MainActivity extends AppCompatActivity implements FileChooserDialog.FileCallback {

    private static final String TAG = "BLESample";

    private final static String DEFAULT_IMG_DATA = "000000b6ffdbffb6000000000000b6ffffffb60000006db7b6dbffffffdbb6b749ffffffffffffffffffffffffdbb7b7b7b7b7b7b7dbffffdb00000000000000dbffffdb00000000000000dbffffdb92929292929292dbffffffdbdbdbdbdbdbdbffffffdb00000000000000dbffffdb00000000000000dbffffdb92929292929292dbffffffdbdbdbdbdbdbdbffffffdb00000000000000dbffffdb00000000000000dbffffdb92929292929292dbffffffdbdbdbdbdbdbdbffffffdb00000000000000dbffffdb00000000000000dbffffdb6e6e6e6e6e6e6edbffffffffffffffffffffffff6edbdbdbdbdbdbdbdbdb6e";

    private BluetoothManager mBluetoothManager;

    private BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

    private BluetoothAdapter.LeScanCallback leScanCallback = new BluetoothAdapter.LeScanCallback() {
        @Override
        public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {
            if (device.getName() != null && device.getName().startsWith("R5") && !(mBLEDeviceAddressSet.contains(device.getAddress()))) {
                mBLEDeviceAddressSet.add(device.getAddress());
                mMaterialSimpleListAdapter.add(new MaterialSimpleListItem.Builder(MainActivity.this)
                        .id(device.getAddress().hashCode())
                        .tag(device)
                        .content("Name: " + device.getName() + " Mac: " + device.getAddress())
                        .build());
            }

        }
    };

    private BluetoothGatt mBluetoothGatt;

    private EBadgeBleManager mBleManager;

    private MaterialSimpleListAdapter mMaterialSimpleListAdapter;

    private HashSet<String> mBLEDeviceAddressSet = new HashSet<>();

    private RecyclerView mRecyclerView;

    private LogAdapter mLogAdapter;

    private String mImgDataHexString = DEFAULT_IMG_DATA;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mRecyclerView = findViewById(R.id.rv_ble_log);
        mLogAdapter = new LogAdapter();
        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
        mRecyclerView.setItemAnimator(new DefaultItemAnimator());
        mRecyclerView.setAdapter(mLogAdapter);

        mBleManager = new EBadgeBleManager(getApplicationContext());

        ActivityCompat.requestPermissions(this,
                new String[]{Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.READ_EXTERNAL_STORAGE},
                0);

        mMaterialSimpleListAdapter = new MaterialSimpleListAdapter(new MaterialSimpleListAdapter.Callback() {
            @Override
            public void onMaterialListItemSelected(MaterialDialog dialog, int index, MaterialSimpleListItem item) {
                dialog.cancel();
                connectToDevice(((BluetoothDevice) item.getTag()));
            }
        });

        mBluetoothManager = (BluetoothManager)
                getSystemService(Context.BLUETOOTH_SERVICE);

        showNearByBLEDevice();
        getPairedDevices();

        byte[] result = CmdController.addFlashImageTest();
        byte[] addPageTestResult = CmdController.addPageTest();
        byte[] refreshResult = CmdController.refreshTest();

        Log.d(TAG, "onCreate: " + bytesToHex(result));
        Log.d(TAG, "addPageTestResult: " + bytesToHex(addPageTestResult));
        Log.d(TAG, "refreshResult: " + bytesToHex(refreshResult));
    }

    private void showNearByBLEDevice() {
        new MaterialDialog.Builder(this).adapter(mMaterialSimpleListAdapter, null).cancelable(false).show();
    }

    private void connectToDevice(BluetoothDevice device) {
        mBleManager.setGattCallbacks(new EBadgeBleManagerCallback() {

            @Override
            public void onError(@NonNull BluetoothDevice device, @NonNull String message, int errorCode) {
                Log.d(TAG, "onError: " + message + ", code:" + errorCode);
            }

            @Override
            public void onNotificationDataReceive(@NonNull BluetoothDevice device, @NonNull Data data) {
                super.onNotificationDataReceive(device, data);
                mLogAdapter.addLog("Notify: " + bytesToHex(data.getValue()));
                mRecyclerView.smoothScrollToPosition(mLogAdapter.getItemCount() - 1);
            }

            @Override
            public void log(int priority, @NonNull String message) {
                super.log(priority, message);
                mLogAdapter.addLog(message);
                mRecyclerView.smoothScrollToPosition(mLogAdapter.getItemCount() - 1);
            }
        });
        mBleManager.connect(device).useAutoConnect(false).enqueue();
    }

    public void customCmd(View view) {
        new MaterialDialog.Builder(this)
                .title("cmd")
                .inputType(InputType.TYPE_CLASS_TEXT)
                .input("", "", (dialog, input) -> mBleManager.customCmd(input.toString()));//.show();


        new FileChooserDialog.Builder(this)
                .tag("customCmd")
                .extensionsFilter(".txt") // Optional extension filter, will override mimeType()
                .show(this); // an AppCompatActivity which implements FileCallback
    }

    @Override
    public void onFileSelection(@NonNull FileChooserDialog dialog, @NonNull File file) {
        dialog.dismiss();
        String tag = "";
        if (dialog.getTag() != null) {
            tag = dialog.getTag();
        }
        switch (tag) {
            case "customCmd":
                new Thread(() -> {
                    try {
                        FileInputStream fin = new FileInputStream(file);
                        String result = IOUtils.toString(fin, Charset.defaultCharset());
                        mBleManager.customCmd(result);
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }).run();
                break;
            case "imageData":
                final Dialog loadingDialog = new MaterialDialog.Builder(this).title("Decoding...")
                        .progress(true, 0)
                        .show();
                new Thread(() -> {
                    try {

                        BitmapFactory.Options options = new BitmapFactory.Options();
                        options.inPreferredConfig = Bitmap.Config.ARGB_8888;
                        Bitmap bitmap = BitmapFactory.decodeFile(file.getPath(), options);
                        mImgDataHexString = Utils.byteArrayToHexString(bitmapTo8BitImage(bitmap));
                        loadingDialog.dismiss();

                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }).run();
                break;

        }


    }

    private byte[] bitmapTo8BitImage(Bitmap bitmap) {
        int[] pixels = new int[bitmap.getWidth() * bitmap.getHeight()];
        bitmap.getPixels(pixels, 0, bitmap.getWidth(), 0, 0,
                bitmap.getWidth(), bitmap.getHeight());

        ByteBuffer eightByteBuffer = ByteBuffer.allocate(pixels.length);

        for (int i = 0; i < pixels.length; i++) {
            int p = pixels[i];

            int red = Color.red(p);
            int green = Color.green(p);
            int blue = Color.blue(p);

            byte p1Rgb = (byte) (((int) Math.round(red / 255.0 * 7.0) << 5) |
                    ((int) Math.round(green / 255.0 * 7.0) << 2) |
                    ((int) Math.round(blue / 255.0 * 3.0)));

            eightByteBuffer.put(p1Rgb);
        }


        return eightByteBuffer.array();
    }

    @Override
    public void onFileChooserDismissed(@NonNull FileChooserDialog dialog) {

    }

    public void sendImage(View view) {
        //mBleManager.sendImageBuffer();

        showSendImageDialog();

    }

    private void showSendImageDialog() {
        LinearLayout linearLayout = new LinearLayout(this);
        linearLayout.setOrientation(LinearLayout.VERTICAL);

        ViewGroup.LayoutParams editTextLayoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);

        final EditText imageIdEdit = new EditText(this);
        imageIdEdit.setHint("ImageId");
        imageIdEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
        imageIdEdit.setText("1");

        final EditText widthEdit = new EditText(this);
        widthEdit.setHint("Width");
        widthEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
        widthEdit.setText("11");

        final EditText heightEdit = new EditText(this);
        heightEdit.setHint("Height");
        heightEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
        heightEdit.setText("22");

        final Button imageDataBtn = new Button(this);
        imageDataBtn.setAllCaps(false);
        imageDataBtn.setText("ImageFile");
        imageDataBtn.setOnClickListener(v -> {
            new FileChooserDialog.Builder(this)
                    .tag("imageData")
                    .mimeType("image/*")
                    //.extensionsFilter(".txt") // Optional extension filter, will override mimeType()
                    .show(this); // an AppCompatActivity which implements FileCallback
        });

        linearLayout.addView(imageIdEdit, editTextLayoutParams);
        linearLayout.addView(widthEdit, editTextLayoutParams);
        linearLayout.addView(heightEdit, editTextLayoutParams);
        linearLayout.addView(imageDataBtn);

        new MaterialDialog.Builder(this)
                .title("Send Image")
                .customView(linearLayout, true)
                .positiveText(android.R.string.ok)
                .negativeText(android.R.string.cancel)
                .onPositive((dialog, which) -> {
                    int imageId = Integer.parseInt(imageIdEdit.getText().toString());
                    int width = Integer.parseInt(widthEdit.getText().toString());
                    int height = Integer.parseInt(heightEdit.getText().toString());
                    sendImg(imageId, width, height);
                })
                .show();
    }

    private void sendImg(int imageId, int width, int height) {
        ImageData imageData = new ImageData();
        imageData.id = imageId;
        imageData.width = width;
        imageData.height = height;
        imageData.data = Utils.hexStringToByteArray(mImgDataHexString);

        mBleManager.sendImageBuffer(imageData);
        mImgDataHexString = DEFAULT_IMG_DATA;
    }

    private void showSetImageDialog() {
        LinearLayout linearLayout = new LinearLayout(this);
        linearLayout.setOrientation(LinearLayout.VERTICAL);

        ViewGroup.LayoutParams editTextLayoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);

        final EditText pageIdEdit = new EditText(this);
        pageIdEdit.setHint("PageId");
        pageIdEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
        pageIdEdit.setText("1");

        final ToggleButton backgroundToggle = new ToggleButton(this);
        backgroundToggle.setTextOn("White");
        backgroundToggle.setTextOff("Black");
        backgroundToggle.setChecked(false);

        final EditText expiredEdit = new EditText(this);
        expiredEdit.setHint("ExpiredTime: 2019/10/10 11:12:13");
        expiredEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
        expiredEdit.setText("2019/10/10 11:12:13");
        SimpleMaskFormatter smf = new SimpleMaskFormatter("NNNN/NN/NN NN:NN:NN");
        MaskTextWatcher mtw = new MaskTextWatcher(expiredEdit, smf);
        expiredEdit.addTextChangedListener(mtw);

        final EditText imageIdEdit = new EditText(this);
        imageIdEdit.setHint("ImageId");
        imageIdEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
        imageIdEdit.setText("1");

        final EditText xEdit = new EditText(this);
        xEdit.setHint("X");
        xEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
        xEdit.setText("100");

        final EditText yEdit = new EditText(this);
        yEdit.setHint("Y");
        yEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
        yEdit.setText("200");

        final ToggleButton invertToggle = new ToggleButton(this);
        invertToggle.setTextOn("Invert");
        invertToggle.setTextOff("Normal");
        invertToggle.setChecked(false);

        linearLayout.addView(pageIdEdit, editTextLayoutParams);
        linearLayout.addView(backgroundToggle);
        linearLayout.addView(expiredEdit, editTextLayoutParams);
        linearLayout.addView(imageIdEdit, editTextLayoutParams);
        linearLayout.addView(xEdit, editTextLayoutParams);
        linearLayout.addView(yEdit, editTextLayoutParams);
        linearLayout.addView(invertToggle);

        new MaterialDialog.Builder(this)
                .title("Send Image")
                .customView(linearLayout, true)
                .positiveText(android.R.string.ok)
                .negativeText(android.R.string.cancel)
                .onPositive((dialog, which) -> {
                    int pageId = Integer.parseInt(pageIdEdit.getText().toString());
                    boolean background = backgroundToggle.isChecked();
                    Date date = parseDate(expiredEdit.getText().toString());
                    int imageId = Integer.parseInt(imageIdEdit.getText().toString());
                    int x = Integer.parseInt(xEdit.getText().toString());
                    int y = Integer.parseInt(yEdit.getText().toString());
                    boolean invert = invertToggle.isChecked();

                    ImageConfig imageConfig = new ImageConfig();
                    imageConfig.imageId = imageId;
                    imageConfig.x = x;
                    imageConfig.y = y;
                    imageConfig.invert = invert;

                    List<ImageConfig> configList = new ArrayList<>();
                    configList.add(imageConfig);

                    mBleManager.setImageConfig(pageId, background ? 1 : 0, date, configList);
                })
                .show();
    }

    private Date parseDate(String dataString) {
        Date date = new Date();
        SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss", Locale.US);
        try {
            date = format.parse(dataString);
            System.out.println(date);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }

    public void setPage(View view) {
        showSetImageDialog();
    }

    private void showRefreshDialog() {
        LinearLayout linearLayout = new LinearLayout(this);
        linearLayout.setOrientation(LinearLayout.VERTICAL);

        ViewGroup.LayoutParams editTextLayoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);

        final EditText pageIdEdit = new EditText(this);
        pageIdEdit.setHint("ImageId");
        pageIdEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
        pageIdEdit.setText("1");

        linearLayout.addView(pageIdEdit, editTextLayoutParams);

        new MaterialDialog.Builder(this)
                .title("Send Image")
                .customView(linearLayout, true)
                .positiveText(android.R.string.ok)
                .negativeText(android.R.string.cancel)
                .onPositive((dialog, which) -> {
                    int pageId = Integer.parseInt(pageIdEdit.getText().toString());
                    mBleManager.refresh(pageId);
                })
                .show();
    }

    public void refresh(View view) {
        showRefreshDialog();
    }

    public void clean(View view) {
        mBleManager.clean();
    }

    private void getPairedDevices() {
        for (BluetoothDevice device : mBluetoothManager.getConnectedDevices(BluetoothProfile.GATT)) {
            if (device.getName() != null && device.getName().startsWith("R5") && !(mBLEDeviceAddressSet.contains(device.getAddress()))) {
                mBLEDeviceAddressSet.add(device.getAddress());
                mMaterialSimpleListAdapter.add(new MaterialSimpleListItem.Builder(MainActivity.this)
                        .id(device.getAddress().hashCode())
                        .tag(device)
                        .content("Name(Paired): " + device.getName() + " Mac: " + device.getAddress())
                        .build());
            }
        }
    }

    public static byte[] hexStringToByteArray(String s) {
        int len = s.length();
        byte[] data = new byte[len / 2];
        for (int i = 0; i < len; i += 2) {
            data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
                    + Character.digit(s.charAt(i + 1), 16));
        }
        return data;
    }

    private void getBatteryLevel(BluetoothGatt gatt) {

        for (BluetoothGattService service : gatt.getServices()) {
            Log.d(TAG, "service list: " + service.getUuid());
        }

        BluetoothGattService service = gatt.getService(UUID.fromString("0000180f-0000-1000-8000-00805f9b34fb"));

        Log.d(TAG, "battery service == null: " + String.valueOf(service == null));

        if (service != null) {
            gatt.readCharacteristic(service.getCharacteristic(UUID.fromString("00002a19-0000-1000-8000-00805f9b34fb")));
        }
    }

    @Override
    protected void onStart() {
        super.onStart();
        mBluetoothAdapter.startLeScan(leScanCallback);
    }

    @Override
    protected void onStop() {
        super.onStop();
        mBluetoothAdapter.stopLeScan(leScanCallback);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (mBleManager != null) {
            mBleManager.disconnect();
        }
    }
 }
	package com.ix.ebadgesdk.sample;

	import androidx.annotation.NonNull;
	import androidx.appcompat.app.AppCompatActivity;
	import androidx.core.app.ActivityCompat;
	import androidx.recyclerview.widget.DefaultItemAnimator;
	import androidx.recyclerview.widget.LinearLayoutManager;
	import androidx.recyclerview.widget.RecyclerView;
	import no.nordicsemi.android.ble.data.Data;

	import android.Manifest;
	import android.app.Dialog;
	import android.bluetooth.BluetoothAdapter;
	import android.bluetooth.BluetoothDevice;
	import android.bluetooth.BluetoothGatt;
	import android.bluetooth.BluetoothGattService;
	import android.bluetooth.BluetoothManager;
	import android.bluetooth.BluetoothProfile;
	import android.content.Context;
	import android.graphics.Bitmap;
	import android.graphics.BitmapFactory;
	import android.graphics.Color;
	import android.os.Bundle;
	import android.text.InputType;
	import android.util.Log;
	import android.view.View;
	import android.view.ViewGroup;
	import android.widget.Button;
	import android.widget.EditText;
	import android.widget.LinearLayout;
	import android.widget.ToggleButton;

	import com.afollestad.materialdialogs.MaterialDialog;
	import com.afollestad.materialdialogs.folderselector.FileChooserDialog;
	import com.afollestad.materialdialogs.simplelist.MaterialSimpleListAdapter;
	import com.afollestad.materialdialogs.simplelist.MaterialSimpleListItem;
	import com.github.rtoshiro.util.format.SimpleMaskFormatter;
	import com.github.rtoshiro.util.format.text.MaskTextWatcher;

	import com.ix.ebadgesdk.CmdController;
	import com.ix.ebadgesdk.EBadgeBleManager;
	import com.ix.ebadgesdk.EBadgeBleManagerCallback;
	import com.ix.ebadgesdk.Utils;
	import com.ix.ebadgesdk.bean.ImageConfig;
	import com.ix.ebadgesdk.bean.ImageData;

	import org.apache.commons.io.IOUtils;

	import java.io.File;
	import java.io.FileInputStream;
	import java.io.IOException;
	import java.nio.ByteBuffer;
	import java.nio.charset.Charset;
	import java.text.ParseException;
	import java.text.SimpleDateFormat;
	import java.util.ArrayList;
	import java.util.Date;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Locale;
	import java.util.UUID;

	import static com.ix.ebadgesdk.EBadgeBleManager.bytesToHex;

	public class MainActivity extends AppCompatActivity implements FileChooserDialog.FileCallback {

	private static final String TAG = "BLESample";

	private final static String DEFAULT_IMG_DATA = "000000b6ffdbffb6000000000000b6ffffffb60000006db7b6dbffffffdbb6b749ffffffffffffffffffffffffdbb7b7b7b7b7b7b7dbffffdb00000000000000dbffffdb00000000000000dbffffdb92929292929292dbffffffdbdbdbdbdbdbdbffffffdb00000000000000dbffffdb00000000000000dbffffdb92929292929292dbffffffdbdbdbdbdbdbdbffffffdb00000000000000dbffffdb00000000000000dbffffdb92929292929292dbffffffdbdbdbdbdbdbdbffffffdb00000000000000dbffffdb00000000000000dbffffdb6e6e6e6e6e6e6edbffffffffffffffffffffffff6edbdbdbdbdbdbdbdbdb6e";

	private BluetoothManager mBluetoothManager;

	private BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

	private BluetoothAdapter.LeScanCallback leScanCallback = new BluetoothAdapter.LeScanCallback() {
	@Override
	public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {
	if (device.getName() != null && device.getName().startsWith("R5") && !(mBLEDeviceAddressSet.contains(device.getAddress()))) {
	mBLEDeviceAddressSet.add(device.getAddress());
	mMaterialSimpleListAdapter.add(new MaterialSimpleListItem.Builder(MainActivity.this)
	.id(device.getAddress().hashCode())
	.tag(device)
	.content("Name: " + device.getName() + " Mac: " + device.getAddress())
	.build());
	}

	}
	};

	private BluetoothGatt mBluetoothGatt;

	private EBadgeBleManager mBleManager;

	private MaterialSimpleListAdapter mMaterialSimpleListAdapter;

	private HashSet<String> mBLEDeviceAddressSet = new HashSet<>();

	private RecyclerView mRecyclerView;

	private LogAdapter mLogAdapter;

	private String mImgDataHexString = DEFAULT_IMG_DATA;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_main);

	mRecyclerView = findViewById(R.id.rv_ble_log);
	mLogAdapter = new LogAdapter();
	mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
	mRecyclerView.setItemAnimator(new DefaultItemAnimator());
	mRecyclerView.setAdapter(mLogAdapter);

	mBleManager = new EBadgeBleManager(getApplicationContext());

	ActivityCompat.requestPermissions(this,
	new String[]{Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.READ_EXTERNAL_STORAGE},
	0);

	mMaterialSimpleListAdapter = new MaterialSimpleListAdapter(new MaterialSimpleListAdapter.Callback() {
	@Override
	public void onMaterialListItemSelected(MaterialDialog dialog, int index, MaterialSimpleListItem item) {
	dialog.cancel();
	connectToDevice(((BluetoothDevice) item.getTag()));
	}
	});

	mBluetoothManager = (BluetoothManager)
	getSystemService(Context.BLUETOOTH_SERVICE);

	showNearByBLEDevice();
	getPairedDevices();

	byte[] result = CmdController.addFlashImageTest();
	byte[] addPageTestResult = CmdController.addPageTest();
	byte[] refreshResult = CmdController.refreshTest();

	Log.d(TAG, "onCreate: " + bytesToHex(result));
	Log.d(TAG, "addPageTestResult: " + bytesToHex(addPageTestResult));
	Log.d(TAG, "refreshResult: " + bytesToHex(refreshResult));
	}

	private void showNearByBLEDevice() {
	new MaterialDialog.Builder(this).adapter(mMaterialSimpleListAdapter, null).cancelable(false).show();
	}

	private void connectToDevice(BluetoothDevice device) {
	mBleManager.setGattCallbacks(new EBadgeBleManagerCallback() {

	@Override
	public void onError(@NonNull BluetoothDevice device, @NonNull String message, int errorCode) {
	Log.d(TAG, "onError: " + message + ", code:" + errorCode);
	}

	@Override
	public void onNotificationDataReceive(@NonNull BluetoothDevice device, @NonNull Data data) {
	super.onNotificationDataReceive(device, data);
	mLogAdapter.addLog("Notify: " + bytesToHex(data.getValue()));
	mRecyclerView.smoothScrollToPosition(mLogAdapter.getItemCount() - 1);
	}

	@Override
	public void log(int priority, @NonNull String message) {
	super.log(priority, message);
	mLogAdapter.addLog(message);
	mRecyclerView.smoothScrollToPosition(mLogAdapter.getItemCount() - 1);
	}
	});
	mBleManager.connect(device).useAutoConnect(false).enqueue();
	}

	public void customCmd(View view) {
	new MaterialDialog.Builder(this)
	.title("cmd")
	.inputType(InputType.TYPE_CLASS_TEXT)
	.input("", "", (dialog, input) -> mBleManager.customCmd(input.toString()));//.show();


	new FileChooserDialog.Builder(this)
	.tag("customCmd")
	.extensionsFilter(".txt") // Optional extension filter, will override mimeType()
	.show(this); // an AppCompatActivity which implements FileCallback
	}

	@Override
	public void onFileSelection(@NonNull FileChooserDialog dialog, @NonNull File file) {
	dialog.dismiss();
	String tag = "";
	if (dialog.getTag() != null) {
	tag = dialog.getTag();
	}
	switch (tag) {
	case "customCmd":
	new Thread(() -> {
	try {
	FileInputStream fin = new FileInputStream(file);
	String result = IOUtils.toString(fin, Charset.defaultCharset());
	mBleManager.customCmd(result);
	} catch (IOException e) {
	e.printStackTrace();
	}
	}).run();
	break;
	case "imageData":
	final Dialog loadingDialog = new MaterialDialog.Builder(this).title("Decoding...")
	.progress(true, 0)
	.show();
	new Thread(() -> {
	try {

	BitmapFactory.Options options = new BitmapFactory.Options();
	options.inPreferredConfig = Bitmap.Config.ARGB_8888;
	Bitmap bitmap = BitmapFactory.decodeFile(file.getPath(), options);
	mImgDataHexString = Utils.byteArrayToHexString(bitmapTo8BitImage(bitmap));
	loadingDialog.dismiss();

	} catch (Exception e) {
	e.printStackTrace();
	}
	}).run();
	break;

	}


	}

	private byte[] bitmapTo8BitImage(Bitmap bitmap) {
	int[] pixels = new int[bitmap.getWidth() * bitmap.getHeight()];
	bitmap.getPixels(pixels, 0, bitmap.getWidth(), 0, 0,
	bitmap.getWidth(), bitmap.getHeight());

	ByteBuffer eightByteBuffer = ByteBuffer.allocate(pixels.length);

	for (int i = 0; i < pixels.length; i++) {
	int p = pixels[i];

	int red = Color.red(p);
	int green = Color.green(p);
	int blue = Color.blue(p);

	byte p1Rgb = (byte) (((int) Math.round(red / 255.0 * 7.0) << 5) \|
	((int) Math.round(green / 255.0 * 7.0) << 2) \|
	((int) Math.round(blue / 255.0 * 3.0)));

	eightByteBuffer.put(p1Rgb);
	}


	return eightByteBuffer.array();
	}

	@Override
	public void onFileChooserDismissed(@NonNull FileChooserDialog dialog) {

	}

	public void sendImage(View view) {
	//mBleManager.sendImageBuffer();

	showSendImageDialog();

	}

	private void showSendImageDialog() {
	LinearLayout linearLayout = new LinearLayout(this);
	linearLayout.setOrientation(LinearLayout.VERTICAL);

	ViewGroup.LayoutParams editTextLayoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);

	final EditText imageIdEdit = new EditText(this);
	imageIdEdit.setHint("ImageId");
	imageIdEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
	imageIdEdit.setText("1");

	final EditText widthEdit = new EditText(this);
	widthEdit.setHint("Width");
	widthEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
	widthEdit.setText("11");

	final EditText heightEdit = new EditText(this);
	heightEdit.setHint("Height");
	heightEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
	heightEdit.setText("22");

	final Button imageDataBtn = new Button(this);
	imageDataBtn.setAllCaps(false);
	imageDataBtn.setText("ImageFile");
	imageDataBtn.setOnClickListener(v -> {
	new FileChooserDialog.Builder(this)
	.tag("imageData")
	.mimeType("image/*")
	//.extensionsFilter(".txt") // Optional extension filter, will override mimeType()
	.show(this); // an AppCompatActivity which implements FileCallback
	});

	linearLayout.addView(imageIdEdit, editTextLayoutParams);
	linearLayout.addView(widthEdit, editTextLayoutParams);
	linearLayout.addView(heightEdit, editTextLayoutParams);
	linearLayout.addView(imageDataBtn);

	new MaterialDialog.Builder(this)
	.title("Send Image")
	.customView(linearLayout, true)
	.positiveText(android.R.string.ok)
	.negativeText(android.R.string.cancel)
	.onPositive((dialog, which) -> {
	int imageId = Integer.parseInt(imageIdEdit.getText().toString());
	int width = Integer.parseInt(widthEdit.getText().toString());
	int height = Integer.parseInt(heightEdit.getText().toString());
	sendImg(imageId, width, height);
	})
	.show();
	}

	private void sendImg(int imageId, int width, int height) {
	ImageData imageData = new ImageData();
	imageData.id = imageId;
	imageData.width = width;
	imageData.height = height;
	imageData.data = Utils.hexStringToByteArray(mImgDataHexString);

	mBleManager.sendImageBuffer(imageData);
	mImgDataHexString = DEFAULT_IMG_DATA;
	}

	private void showSetImageDialog() {
	LinearLayout linearLayout = new LinearLayout(this);
	linearLayout.setOrientation(LinearLayout.VERTICAL);

	ViewGroup.LayoutParams editTextLayoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);

	final EditText pageIdEdit = new EditText(this);
	pageIdEdit.setHint("PageId");
	pageIdEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
	pageIdEdit.setText("1");

	final ToggleButton backgroundToggle = new ToggleButton(this);
	backgroundToggle.setTextOn("White");
	backgroundToggle.setTextOff("Black");
	backgroundToggle.setChecked(false);

	final EditText expiredEdit = new EditText(this);
	expiredEdit.setHint("ExpiredTime: 2019/10/10 11:12:13");
	expiredEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
	expiredEdit.setText("2019/10/10 11:12:13");
	SimpleMaskFormatter smf = new SimpleMaskFormatter("NNNN/NN/NN NN:NN:NN");
	MaskTextWatcher mtw = new MaskTextWatcher(expiredEdit, smf);
	expiredEdit.addTextChangedListener(mtw);

	final EditText imageIdEdit = new EditText(this);
	imageIdEdit.setHint("ImageId");
	imageIdEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
	imageIdEdit.setText("1");

	final EditText xEdit = new EditText(this);
	xEdit.setHint("X");
	xEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
	xEdit.setText("100");

	final EditText yEdit = new EditText(this);
	yEdit.setHint("Y");
	yEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
	yEdit.setText("200");

	final ToggleButton invertToggle = new ToggleButton(this);
	invertToggle.setTextOn("Invert");
	invertToggle.setTextOff("Normal");
	invertToggle.setChecked(false);

	linearLayout.addView(pageIdEdit, editTextLayoutParams);
	linearLayout.addView(backgroundToggle);
	linearLayout.addView(expiredEdit, editTextLayoutParams);
	linearLayout.addView(imageIdEdit, editTextLayoutParams);
	linearLayout.addView(xEdit, editTextLayoutParams);
	linearLayout.addView(yEdit, editTextLayoutParams);
	linearLayout.addView(invertToggle);

	new MaterialDialog.Builder(this)
	.title("Send Image")
	.customView(linearLayout, true)
	.positiveText(android.R.string.ok)
	.negativeText(android.R.string.cancel)
	.onPositive((dialog, which) -> {
	int pageId = Integer.parseInt(pageIdEdit.getText().toString());
	boolean background = backgroundToggle.isChecked();
	Date date = parseDate(expiredEdit.getText().toString());
	int imageId = Integer.parseInt(imageIdEdit.getText().toString());
	int x = Integer.parseInt(xEdit.getText().toString());
	int y = Integer.parseInt(yEdit.getText().toString());
	boolean invert = invertToggle.isChecked();

	ImageConfig imageConfig = new ImageConfig();
	imageConfig.imageId = imageId;
	imageConfig.x = x;
	imageConfig.y = y;
	imageConfig.invert = invert;

	List<ImageConfig> configList = new ArrayList<>();
	configList.add(imageConfig);

	mBleManager.setImageConfig(pageId, background ? 1 : 0, date, configList);
	})
	.show();
	}

	private Date parseDate(String dataString) {
	Date date = new Date();
	SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss", Locale.US);
	try {
	date = format.parse(dataString);
	System.out.println(date);
	} catch (ParseException e) {
	e.printStackTrace();
	}
	return date;
	}

	public void setPage(View view) {
	showSetImageDialog();
	}

	private void showRefreshDialog() {
	LinearLayout linearLayout = new LinearLayout(this);
	linearLayout.setOrientation(LinearLayout.VERTICAL);

	ViewGroup.LayoutParams editTextLayoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);

	final EditText pageIdEdit = new EditText(this);
	pageIdEdit.setHint("ImageId");
	pageIdEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
	pageIdEdit.setText("1");

	linearLayout.addView(pageIdEdit, editTextLayoutParams);

	new MaterialDialog.Builder(this)
	.title("Send Image")
	.customView(linearLayout, true)
	.positiveText(android.R.string.ok)
	.negativeText(android.R.string.cancel)
	.onPositive((dialog, which) -> {
	int pageId = Integer.parseInt(pageIdEdit.getText().toString());
	mBleManager.refresh(pageId);
	})
	.show();
	}

	public void refresh(View view) {
	showRefreshDialog();
	}

	public void clean(View view) {
	mBleManager.clean();
	}

	private void getPairedDevices() {
	for (BluetoothDevice device : mBluetoothManager.getConnectedDevices(BluetoothProfile.GATT)) {
	if (device.getName() != null && device.getName().startsWith("R5") && !(mBLEDeviceAddressSet.contains(device.getAddress()))) {
	mBLEDeviceAddressSet.add(device.getAddress());
	mMaterialSimpleListAdapter.add(new MaterialSimpleListItem.Builder(MainActivity.this)
	.id(device.getAddress().hashCode())
	.tag(device)
	.content("Name(Paired): " + device.getName() + " Mac: " + device.getAddress())
	.build());
	}
	}
	}

	public static byte[] hexStringToByteArray(String s) {
	int len = s.length();
	byte[] data = new byte[len / 2];
	for (int i = 0; i < len; i += 2) {
	data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
	+ Character.digit(s.charAt(i + 1), 16));
	}
	return data;
	}

	private void getBatteryLevel(BluetoothGatt gatt) {

	for (BluetoothGattService service : gatt.getServices()) {
	Log.d(TAG, "service list: " + service.getUuid());
	}

	BluetoothGattService service = gatt.getService(UUID.fromString("0000180f-0000-1000-8000-00805f9b34fb"));

	Log.d(TAG, "battery service == null: " + String.valueOf(service == null));

	if (service != null) {
	gatt.readCharacteristic(service.getCharacteristic(UUID.fromString("00002a19-0000-1000-8000-00805f9b34fb")));
	}
	}

	@Override
	protected void onStart() {
	super.onStart();
	mBluetoothAdapter.startLeScan(leScanCallback);
	}

	@Override
	protected void onStop() {
	super.onStop();
	mBluetoothAdapter.stopLeScan(leScanCallback);
	}

	@Override
	protected void onDestroy() {
	super.onDestroy();
	if (mBleManager != null) {
	mBleManager.disconnect();
	}
	}
	}