<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="300dp"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="Bottom Sheet Dialog Example"
android:textSize="26dp"
android:textStyle="bold"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@mipmap/ic_launcher"/>
</LinearLayout>
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
android:orientation="vertical"
tools:context="com.blogspot.android_er.androidbottomsheetdialog.MainActivity">
<LinearLayout
android:id="@+id/backgroundlayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />
<TextView
android:id="@+id/textSDK"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/prompt1"
android:textSize="28dp"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/prompt2"
android:textSize="28dp"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
package com.blogspot.android_er.androidbottomsheetdialog;
import android.content.DialogInterface;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.BottomSheetBehavior;
import android.support.design.widget.BottomSheetDialog;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
LinearLayout backgroundLayout;
View bottomSheetView;
TextView textPrompt1, textPrompt2;
TextView textSDK;
BottomSheetDialog bottomSheetDialog;
BottomSheetBehavior bottomSheetBehavior;
int sdk_int = Build.VERSION.SDK_INT;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textSDK = (TextView)findViewById(R.id.textSDK);
textSDK.setText("Running SDK_INT: " + sdk_int);
textPrompt1 = (TextView)findViewById(R.id.prompt1);
textPrompt2 = (TextView)findViewById(R.id.prompt2);
backgroundLayout = (LinearLayout)findViewById(R.id.backgroundlayout);
bottomSheetView = getLayoutInflater().inflate(R.layout.bottomsheetdialog_layout, null);
bottomSheetDialog = new BottomSheetDialog(MainActivity.this);
bottomSheetDialog.setContentView(bottomSheetView);
bottomSheetBehavior = BottomSheetBehavior.from((View) bottomSheetView.getParent());
bottomSheetBehavior.setBottomSheetCallback(bottomSheetCallback);
bottomSheetDialog.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialog) {
textPrompt1.setText("OnShow");
}
});
bottomSheetDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
bottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
textPrompt1.setText("OnDismiss");
}
});
backgroundLayout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
bottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
bottomSheetDialog.show();
}
});
}
BottomSheetBehavior.BottomSheetCallback bottomSheetCallback =
new BottomSheetBehavior.BottomSheetCallback(){
@Override
public void onStateChanged(@NonNull View bottomSheet, int newState) {
switch (newState){
case BottomSheetBehavior.STATE_COLLAPSED:
textPrompt2.setText("COLLAPSED");
break;
case BottomSheetBehavior.STATE_DRAGGING:
textPrompt2.setText("DRAGGING");
break;
case BottomSheetBehavior.STATE_EXPANDED:
textPrompt2.setText("EXPANDED");
break;
case BottomSheetBehavior.STATE_HIDDEN:
textPrompt2.setText("HIDDEN");
bottomSheetDialog.dismiss();
break;
case BottomSheetBehavior.STATE_SETTLING:
textPrompt2.setText("SETTLING");
break;
default:
textPrompt2.setText("unknown...");
}
}
@Override
public void onSlide(@NonNull View bottomSheet, float slideOffset) {
}
};
}
package com.blogspot.android_er.androidbottomsheet;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.BottomSheetBehavior;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
LinearLayout backgroundLayout;
View bottomSheet;
private BottomSheetBehavior bottomSheetBehavior;
TextView textPrompt;
TextView textSDK;
/*
Build.VERSION.SDK_INT:
The user-visible SDK version of the framework;
its possible values are defined in Build.VERSION_CODES.
https://developer.android.com/reference/android/os/Build.VERSION_CODES.html
*/
int sdk_int = Build.VERSION.SDK_INT;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textSDK = (TextView)findViewById(R.id.textSDK);
textSDK.setText("Running SDK_INT: " + sdk_int);
textPrompt = (TextView)findViewById(R.id.prompt);
backgroundLayout = (LinearLayout)findViewById(R.id.backgroundlayout);
bottomSheet = findViewById(R.id.bottomsheet);
bottomSheetBehavior = BottomSheetBehavior.from(bottomSheet);
bottomSheetBehavior.setBottomSheetCallback(bottomSheetCallback);
bottomSheetBehavior.setPeekHeight(150);
/*
backgroundLayout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
switch (bottomSheetBehavior.getState()){
case BottomSheetBehavior.STATE_COLLAPSED:
bottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
break;
case BottomSheetBehavior.STATE_EXPANDED:
bottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
break;
}
}
});
*/
}
BottomSheetBehavior.BottomSheetCallback bottomSheetCallback =
new BottomSheetBehavior.BottomSheetCallback(){
@Override
public void onStateChanged(@NonNull View bottomSheet, int newState) {
switch (newState){
case BottomSheetBehavior.STATE_COLLAPSED:
textPrompt.setText("COLLAPSED");
break;
case BottomSheetBehavior.STATE_DRAGGING:
textPrompt.setText("DRAGGING");
break;
case BottomSheetBehavior.STATE_EXPANDED:
textPrompt.setText("EXPANDED");
break;
case BottomSheetBehavior.STATE_HIDDEN:
textPrompt.setText("HIDDEN");
break;
case BottomSheetBehavior.STATE_SETTLING:
textPrompt.setText("SETTLING");
break;
default:
textPrompt.setText("unknown...");
}
}
@Override
public void onSlide(@NonNull View bottomSheet, float slideOffset) {
}
};
}
package com.blogspot.android_er.androidblegatt;
import android.app.Activity;
import android.app.AlertDialog;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothManager;
import android.bluetooth.le.BluetoothLeScanner;
import android.bluetooth.le.ScanCallback;
import android.bluetooth.le.ScanFilter;
import android.bluetooth.le.ScanResult;
import android.bluetooth.le.ScanSettings;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private BluetoothAdapter mBluetoothAdapter;
private BluetoothLeScanner mBluetoothLeScanner;
private boolean mScanning;
private static final int RQS_ENABLE_BLUETOOTH = 1;
Button btnScan;
ListView listViewLE;
List<BluetoothDevice> listBluetoothDevice;
ListAdapter adapterLeScanResult;
private Handler mHandler;
private static final long SCAN_PERIOD = 10000;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Check if BLE is supported on the device.
if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
Toast.makeText(this,
"BLUETOOTH_LE not supported in this device!",
Toast.LENGTH_SHORT).show();
finish();
}
getBluetoothAdapterAndLeScanner();
// Checks if Bluetooth is supported on the device.
if (mBluetoothAdapter == null) {
Toast.makeText(this,
"bluetoothManager.getAdapter()==null",
Toast.LENGTH_SHORT).show();
finish();
return;
}
btnScan = (Button)findViewById(R.id.scan);
btnScan.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
scanLeDevice(true);
}
});
listViewLE = (ListView)findViewById(R.id.lelist);
listBluetoothDevice = new ArrayList<>();
adapterLeScanResult = new ArrayAdapter<BluetoothDevice>(
this, android.R.layout.simple_list_item_1, listBluetoothDevice);
listViewLE.setAdapter(adapterLeScanResult);
listViewLE.setOnItemClickListener(scanResultOnItemClickListener);
mHandler = new Handler();
}
AdapterView.OnItemClickListener scanResultOnItemClickListener =
new AdapterView.OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
final BluetoothDevice device =
(BluetoothDevice) parent.getItemAtPosition(position);
String msg = device.getAddress() + "\n"
+ device.getBluetoothClass().toString() + "\n"
+ getBTDevieType(device);
new AlertDialog.Builder(MainActivity.this)
.setTitle(device.getName())
.setMessage(msg)
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
})
.show();
}
};
private String getBTDevieType(BluetoothDevice d){
String type = "";
switch (d.getType()){
case BluetoothDevice.DEVICE_TYPE_CLASSIC:
type = "DEVICE_TYPE_CLASSIC";
break;
case BluetoothDevice.DEVICE_TYPE_DUAL:
type = "DEVICE_TYPE_DUAL";
break;
case BluetoothDevice.DEVICE_TYPE_LE:
type = "DEVICE_TYPE_LE";
break;
case BluetoothDevice.DEVICE_TYPE_UNKNOWN:
type = "DEVICE_TYPE_UNKNOWN";
break;
default:
type = "unknown...";
}
return type;
}
@Override
protected void onResume() {
super.onResume();
if (!mBluetoothAdapter.isEnabled()) {
if (!mBluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, RQS_ENABLE_BLUETOOTH);
}
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == RQS_ENABLE_BLUETOOTH && resultCode == Activity.RESULT_CANCELED) {
finish();
return;
}
getBluetoothAdapterAndLeScanner();
// Checks if Bluetooth is supported on the device.
if (mBluetoothAdapter == null) {
Toast.makeText(this,
"bluetoothManager.getAdapter()==null",
Toast.LENGTH_SHORT).show();
finish();
return;
}
super.onActivityResult(requestCode, resultCode, data);
}
private void getBluetoothAdapterAndLeScanner(){
// Get BluetoothAdapter and BluetoothLeScanner.
final BluetoothManager bluetoothManager =
(BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
mBluetoothAdapter = bluetoothManager.getAdapter();
mBluetoothLeScanner = mBluetoothAdapter.getBluetoothLeScanner();
mScanning = false;
}
/*
to call startScan (ScanCallback callback),
Requires BLUETOOTH_ADMIN permission.
Must hold ACCESS_COARSE_LOCATION or ACCESS_FINE_LOCATION permission to get results.
*/
private void scanLeDevice(final boolean enable) {
if (enable) {
listBluetoothDevice.clear();
listViewLE.invalidateViews();
// Stops scanning after a pre-defined scan period.
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
mBluetoothLeScanner.stopScan(scanCallback);
listViewLE.invalidateViews();
Toast.makeText(MainActivity.this,
"Scan timeout",
Toast.LENGTH_LONG).show();
mScanning = false;
btnScan.setEnabled(true);
}
}, SCAN_PERIOD);
//mBluetoothLeScanner.startScan(scanCallback);
//scan specified devices only with ScanFilter
ScanFilter scanFilter =
new ScanFilter.Builder()
.setServiceUuid(BluetoothLeService.ParcelUuid_GENUINO101_ledService)
.build();
List<ScanFilter> scanFilters = new ArrayList<ScanFilter>();
scanFilters.add(scanFilter);
ScanSettings scanSettings =
new ScanSettings.Builder().build();
mBluetoothLeScanner.startScan(scanFilters, scanSettings, scanCallback);
mScanning = true;
btnScan.setEnabled(false);
} else {
mBluetoothLeScanner.stopScan(scanCallback);
mScanning = false;
btnScan.setEnabled(true);
}
}
private ScanCallback scanCallback = new ScanCallback() {
@Override
public void onScanResult(int callbackType, ScanResult result) {
super.onScanResult(callbackType, result);
addBluetoothDevice(result.getDevice());
}
@Override
public void onBatchScanResults(List<ScanResult> results) {
super.onBatchScanResults(results);
for(ScanResult result : results){
addBluetoothDevice(result.getDevice());
}
}
@Override
public void onScanFailed(int errorCode) {
super.onScanFailed(errorCode);
Toast.makeText(MainActivity.this,
"onScanFailed: " + String.valueOf(errorCode),
Toast.LENGTH_LONG).show();
}
private void addBluetoothDevice(BluetoothDevice device){
if(!listBluetoothDevice.contains(device)){
listBluetoothDevice.add(device);
listViewLE.invalidateViews();
}
}
};
}
 |
| BottomSheet run on API 19 |
 |
| BottomSheet run on API 23 |
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.blogspot.android_er.androidbottomsheet.MainActivity">
<LinearLayout
android:id="@+id/backgroundlayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />
<TextView
android:id="@+id/textSDK"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/prompt"
android:textSize="28dp"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/bottomsheet"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clipToPadding="true"
android:background="@android:color/darker_gray"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="Bottom Sheet Example"
android:textSize="26dp"
android:textStyle="bold"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@mipmap/ic_launcher"/>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
package com.blogspot.android_er.androidbottomsheet;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.BottomSheetBehavior;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
LinearLayout backgroundLayout;
View bottomSheet;
private BottomSheetBehavior bottomSheetBehavior;
TextView textPrompt;
TextView textSDK;
/*
Build.VERSION.SDK_INT:
The user-visible SDK version of the framework;
its possible values are defined in Build.VERSION_CODES.
https://developer.android.com/reference/android/os/Build.VERSION_CODES.html
*/
int sdk_int = Build.VERSION.SDK_INT;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textSDK = (TextView)findViewById(R.id.textSDK);
textSDK.setText("Running SDK_INT: " + sdk_int);
textPrompt = (TextView)findViewById(R.id.prompt);
backgroundLayout = (LinearLayout)findViewById(R.id.backgroundlayout);
bottomSheet = findViewById(R.id.bottomsheet);
bottomSheetBehavior = BottomSheetBehavior.from(bottomSheet);
bottomSheetBehavior.setBottomSheetCallback(bottomSheetCallback);
backgroundLayout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
switch (bottomSheetBehavior.getState()){
case BottomSheetBehavior.STATE_COLLAPSED:
bottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
break;
case BottomSheetBehavior.STATE_EXPANDED:
bottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
break;
}
}
});
}
BottomSheetBehavior.BottomSheetCallback bottomSheetCallback =
new BottomSheetBehavior.BottomSheetCallback(){
@Override
public void onStateChanged(@NonNull View bottomSheet, int newState) {
switch (newState){
case BottomSheetBehavior.STATE_COLLAPSED:
textPrompt.setText("COLLAPSED");
break;
case BottomSheetBehavior.STATE_DRAGGING:
textPrompt.setText("DRAGGING");
break;
case BottomSheetBehavior.STATE_EXPANDED:
textPrompt.setText("EXPANDED");
break;
case BottomSheetBehavior.STATE_HIDDEN:
textPrompt.setText("HIDDEN");
break;
case BottomSheetBehavior.STATE_SETTLING:
textPrompt.setText("SETTLING");
break;
default:
textPrompt.setText("unknown...");
}
}
@Override
public void onSlide(@NonNull View bottomSheet, float slideOffset) {
}
};
}
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.blogspot.android_er.androidblegatt;
import android.app.Service;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCallback;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;
import android.bluetooth.BluetoothGattService;
import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.os.ParcelUuid;
import android.util.Log;
import java.util.List;
import java.util.UUID;
/**
* Service for managing connection and data communication with a GATT server hosted on a
* given Bluetooth LE device.
*/
public class BluetoothLeService extends Service {
private final static String TAG = BluetoothLeService.class.getSimpleName();
private BluetoothManager mBluetoothManager;
private BluetoothAdapter mBluetoothAdapter;
private String mBluetoothDeviceAddress;
private BluetoothGatt mBluetoothGatt;
private int mConnectionState = STATE_DISCONNECTED;
private static final int STATE_DISCONNECTED = 0;
private static final int STATE_CONNECTING = 1;
private static final int STATE_CONNECTED = 2;
public final static String ACTION_GATT_CONNECTED =
"android-er.ACTION_GATT_CONNECTED";
public final static String ACTION_GATT_DISCONNECTED =
"android-er.ACTION_GATT_DISCONNECTED";
public final static String ACTION_GATT_SERVICES_DISCOVERED =
"android-er.ACTION_GATT_SERVICES_DISCOVERED";
public final static String ACTION_DATA_AVAILABLE =
"android-er.ACTION_DATA_AVAILABLE";
public final static String EXTRA_DATA =
"android-er.EXTRA_DATA";
public static String String_GENUINO101_ledService =
"19B10000-E8F2-537E-4F6C-D104768A1214";
public final static ParcelUuid ParcelUuid_GENUINO101_ledService =
ParcelUuid.fromString(String_GENUINO101_ledService);
public final static UUID UUID_GENUINO101_ledService =
UUID.fromString(String_GENUINO101_ledService);
public static String String_GENUINO101_switchChar =
"19B10001-E8F2-537E-4F6C-D104768A1214";
public final static UUID UUID_GENUINO101_switchChare =
UUID.fromString(String_GENUINO101_switchChar);
// Implements callback methods for GATT events that the app cares about. For example,
// connection change and services discovered.
private final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
String intentAction;
if (newState == BluetoothProfile.STATE_CONNECTED) {
intentAction = ACTION_GATT_CONNECTED;
mConnectionState = STATE_CONNECTED;
broadcastUpdate(intentAction);
Log.i(TAG, "Connected to GATT server.");
// Attempts to discover services after successful connection.
Log.i(TAG, "Attempting to start service discovery:" +
mBluetoothGatt.discoverServices());
} else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
intentAction = ACTION_GATT_DISCONNECTED;
mConnectionState = STATE_DISCONNECTED;
Log.i(TAG, "Disconnected from GATT server.");
broadcastUpdate(intentAction);
}
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
broadcastUpdate(ACTION_GATT_SERVICES_DISCOVERED);
} else {
Log.w(TAG, "onServicesDiscovered received: " + status);
}
}
@Override
public void onCharacteristicRead(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic,
int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
broadcastUpdate(ACTION_DATA_AVAILABLE, characteristic);
}
}
@Override
public void onCharacteristicChanged(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic) {
broadcastUpdate(ACTION_DATA_AVAILABLE, characteristic);
}
};
private void broadcastUpdate(final String action) {
final Intent intent = new Intent(action);
sendBroadcast(intent);
}
private void broadcastUpdate(final String action,
final BluetoothGattCharacteristic characteristic) {
final Intent intent = new Intent(action);
/*
// This is special handling for the Heart Rate Measurement profile. Data parsing is
// carried out as per profile specifications:
// http://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx
// ?u=org.bluetooth.characteristic.heart_rate_measurement.xml
if (UUID_HEART_RATE_MEASUREMENT.equals(characteristic.getUuid())) {
int flag = characteristic.getProperties();
int format = -1;
if ((flag & 0x01) != 0) {
format = BluetoothGattCharacteristic.FORMAT_UINT16;
Log.d(TAG, "Heart rate format UINT16.");
} else {
format = BluetoothGattCharacteristic.FORMAT_UINT8;
Log.d(TAG, "Heart rate format UINT8.");
}
final int heartRate = characteristic.getIntValue(format, 1);
Log.d(TAG, String.format("Received heart rate: %d", heartRate));
intent.putExtra(EXTRA_DATA, String.valueOf(heartRate));
} else {
// For all other profiles, writes the data formatted in HEX.
final byte[] data = characteristic.getValue();
if (data != null && data.length > 0) {
final StringBuilder stringBuilder = new StringBuilder(data.length);
for(byte byteChar : data)
stringBuilder.append(String.format("%02X ", byteChar));
intent.putExtra(EXTRA_DATA, new String(data) + "\n" + stringBuilder.toString());
}
}
*/
//remove special handling for time being
Log.w(TAG, "broadcastUpdate()");
final byte[] data = characteristic.getValue();
Log.v(TAG, "data.length: " + data.length);
if (data != null && data.length > 0) {
final StringBuilder stringBuilder = new StringBuilder(data.length);
for(byte byteChar : data) {
stringBuilder.append(String.format("%02X ", byteChar));
Log.v(TAG, String.format("%02X ", byteChar));
}
intent.putExtra(EXTRA_DATA, new String(data) + "\n" + stringBuilder.toString());
}
sendBroadcast(intent);
}
public class LocalBinder extends Binder {
BluetoothLeService getService() {
return BluetoothLeService.this;
}
}
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
@Override
public boolean onUnbind(Intent intent) {
// After using a given device, you should make sure that BluetoothGatt.close() is called
// such that resources are cleaned up properly. In this particular example, close() is
// invoked when the UI is disconnected from the Service.
close();
return super.onUnbind(intent);
}
private final IBinder mBinder = new LocalBinder();
/**
* Initializes a reference to the local Bluetooth adapter.
*
* @return Return true if the initialization is successful.
*/
public boolean initialize() {
// For API level 18 and above, get a reference to BluetoothAdapter through
// BluetoothManager.
if (mBluetoothManager == null) {
mBluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
if (mBluetoothManager == null) {
Log.e(TAG, "Unable to initialize BluetoothManager.");
return false;
}
}
mBluetoothAdapter = mBluetoothManager.getAdapter();
if (mBluetoothAdapter == null) {
Log.e(TAG, "Unable to obtain a BluetoothAdapter.");
return false;
}
return true;
}
/**
* Connects to the GATT server hosted on the Bluetooth LE device.
*
* @param address The device address of the destination device.
*
* @return Return true if the connection is initiated successfully. The connection result
* is reported asynchronously through the
* {@code BluetoothGattCallback#onConnectionStateChange(
* android.bluetooth.BluetoothGatt, int, int)}
* callback.
*/
public boolean connect(final String address) {
if (mBluetoothAdapter == null || address == null) {
Log.w(TAG, "BluetoothAdapter not initialized or unspecified address.");
return false;
}
// Previously connected device. Try to reconnect.
if (mBluetoothDeviceAddress != null && address.equals(mBluetoothDeviceAddress)
&& mBluetoothGatt != null) {
Log.d(TAG, "Trying to use an existing mBluetoothGatt for connection.");
if (mBluetoothGatt.connect()) {
mConnectionState = STATE_CONNECTING;
return true;
} else {
return false;
}
}
final BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
if (device == null) {
Log.w(TAG, "Device not found. Unable to connect.");
return false;
}
// We want to directly connect to the device, so we are setting the autoConnect
// parameter to false.
mBluetoothGatt = device.connectGatt(this, false, mGattCallback);
Log.d(TAG, "Trying to create a new connection.");
mBluetoothDeviceAddress = address;
mConnectionState = STATE_CONNECTING;
return true;
}
/**
* Disconnects an existing connection or cancel a pending connection. The disconnection result
* is reported asynchronously through the
* {@code BluetoothGattCallback#onConnectionStateChange(
* android.bluetooth.BluetoothGatt, int, int)}
* callback.
*/
public void disconnect() {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.disconnect();
}
/**
* After using a given BLE device, the app must call this method to ensure resources are
* released properly.
*/
public void close() {
if (mBluetoothGatt == null) {
return;
}
mBluetoothGatt.close();
mBluetoothGatt = null;
}
/**
* Request a read on a given {@code BluetoothGattCharacteristic}. The read result is reported
* asynchronously through the {@code BluetoothGattCallback#onCharacteristicRead(
* android.bluetooth.BluetoothGatt, android.bluetooth.BluetoothGattCharacteristic, int)}
* callback.
*
* @param characteristic The characteristic to read from.
*/
public void readCharacteristic(BluetoothGattCharacteristic characteristic) {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.readCharacteristic(characteristic);
}
/**
* Enables or disables notification on a give characteristic.
*
* @param characteristic Characteristic to act on.
* @param enabled If true, enable notification. False otherwise.
*/
public void setCharacteristicNotification(BluetoothGattCharacteristic characteristic,
boolean enabled) {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.setCharacteristicNotification(characteristic, enabled);
// This is specific to Genuino 101 ledService.
if (UUID_GENUINO101_ledService.equals(characteristic.getUuid())) {
BluetoothGattDescriptor descriptor = characteristic.getDescriptor(
UUID_GENUINO101_switchChare);
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
}
/**
* Retrieves a list of supported GATT services on the connected device. This should be
* invoked only after {@code BluetoothGatt#discoverServices()} completes successfully.
*
* @return A {@code List} of supported services.
*/
public List<BluetoothGattService> getSupportedGattServices() {
if (mBluetoothGatt == null) return null;
return mBluetoothGatt.getServices();
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.blogspot.android_er.androidblegatt">
<uses-feature android:name="android.hardware.bluetooth_le" android:required="true"/>
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".BluetoothLeService" android:enabled="true"/>
</application>
</manifest>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
android:orientation="vertical"
tools:context="com.blogspot.android_er.androidblegatt.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="Bluetooth LE Gatt Example"
android:textStyle="italic" />
<Button
android:id="@+id/scan"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Scan"/>
<ListView
android:id="@+id/lelist"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
package com.blogspot.android_er.androidblegatt;
import android.app.Activity;
import android.app.AlertDialog;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothManager;
import android.bluetooth.le.BluetoothLeScanner;
import android.bluetooth.le.ScanCallback;
import android.bluetooth.le.ScanResult;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private BluetoothAdapter mBluetoothAdapter;
private BluetoothLeScanner mBluetoothLeScanner;
private boolean mScanning;
private static final int RQS_ENABLE_BLUETOOTH = 1;
Button btnScan;
ListView listViewLE;
List<BluetoothDevice> listBluetoothDevice;
ListAdapter adapterLeScanResult;
private Handler mHandler;
private static final long SCAN_PERIOD = 10000;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Check if BLE is supported on the device.
if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
Toast.makeText(this,
"BLUETOOTH_LE not supported in this device!",
Toast.LENGTH_SHORT).show();
finish();
}
getBluetoothAdapterAndLeScanner();
// Checks if Bluetooth is supported on the device.
if (mBluetoothAdapter == null) {
Toast.makeText(this,
"bluetoothManager.getAdapter()==null",
Toast.LENGTH_SHORT).show();
finish();
return;
}
btnScan = (Button)findViewById(R.id.scan);
btnScan.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
scanLeDevice(true);
}
});
listViewLE = (ListView)findViewById(R.id.lelist);
listBluetoothDevice = new ArrayList<>();
adapterLeScanResult = new ArrayAdapter<BluetoothDevice>(
this, android.R.layout.simple_list_item_1, listBluetoothDevice);
listViewLE.setAdapter(adapterLeScanResult);
listViewLE.setOnItemClickListener(scanResultOnItemClickListener);
mHandler = new Handler();
}
AdapterView.OnItemClickListener scanResultOnItemClickListener =
new AdapterView.OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
final BluetoothDevice device = (BluetoothDevice) parent.getItemAtPosition(position);
String msg = device.getAddress() + "\n"
+ device.getBluetoothClass().toString() + "\n"
+ getBTDevieType(device);
new AlertDialog.Builder(MainActivity.this)
.setTitle(device.getName())
.setMessage(msg)
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
})
.show();
}
};
private String getBTDevieType(BluetoothDevice d){
String type = "";
switch (d.getType()){
case BluetoothDevice.DEVICE_TYPE_CLASSIC:
type = "DEVICE_TYPE_CLASSIC";
break;
case BluetoothDevice.DEVICE_TYPE_DUAL:
type = "DEVICE_TYPE_DUAL";
break;
case BluetoothDevice.DEVICE_TYPE_LE:
type = "DEVICE_TYPE_LE";
break;
case BluetoothDevice.DEVICE_TYPE_UNKNOWN:
type = "DEVICE_TYPE_UNKNOWN";
break;
default:
type = "unknown...";
}
return type;
}
@Override
protected void onResume() {
super.onResume();
if (!mBluetoothAdapter.isEnabled()) {
if (!mBluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, RQS_ENABLE_BLUETOOTH);
}
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == RQS_ENABLE_BLUETOOTH && resultCode == Activity.RESULT_CANCELED) {
finish();
return;
}
getBluetoothAdapterAndLeScanner();
// Checks if Bluetooth is supported on the device.
if (mBluetoothAdapter == null) {
Toast.makeText(this,
"bluetoothManager.getAdapter()==null",
Toast.LENGTH_SHORT).show();
finish();
return;
}
super.onActivityResult(requestCode, resultCode, data);
}
private void getBluetoothAdapterAndLeScanner(){
// Get BluetoothAdapter and BluetoothLeScanner.
final BluetoothManager bluetoothManager =
(BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
mBluetoothAdapter = bluetoothManager.getAdapter();
mBluetoothLeScanner = mBluetoothAdapter.getBluetoothLeScanner();
mScanning = false;
}
/*
to call startScan (ScanCallback callback),
Requires BLUETOOTH_ADMIN permission.
Must hold ACCESS_COARSE_LOCATION or ACCESS_FINE_LOCATION permission to get results.
*/
private void scanLeDevice(final boolean enable) {
if (enable) {
listBluetoothDevice.clear();
listViewLE.invalidateViews();
// Stops scanning after a pre-defined scan period.
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
mBluetoothLeScanner.stopScan(scanCallback);
listViewLE.invalidateViews();
Toast.makeText(MainActivity.this,
"Scan timeout",
Toast.LENGTH_LONG).show();
mScanning = false;
btnScan.setEnabled(true);
}
}, SCAN_PERIOD);
mBluetoothLeScanner.startScan(scanCallback);
mScanning = true;
btnScan.setEnabled(false);
} else {
mBluetoothLeScanner.stopScan(scanCallback);
mScanning = false;
btnScan.setEnabled(true);
}
}
private ScanCallback scanCallback = new ScanCallback() {
@Override
public void onScanResult(int callbackType, ScanResult result) {
super.onScanResult(callbackType, result);
addBluetoothDevice(result.getDevice());
}
@Override
public void onBatchScanResults(List<ScanResult> results) {
super.onBatchScanResults(results);
for(ScanResult result : results){
addBluetoothDevice(result.getDevice());
}
}
@Override
public void onScanFailed(int errorCode) {
super.onScanFailed(errorCode);
Toast.makeText(MainActivity.this,
"onScanFailed: " + String.valueOf(errorCode),
Toast.LENGTH_LONG).show();
}
private void addBluetoothDevice(BluetoothDevice device){
if(!listBluetoothDevice.contains(device)){
listBluetoothDevice.add(device);
listViewLE.invalidateViews();
}
}
};
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.blogspot.android_er.androidblegatt">
<uses-feature android:name="android.hardware.bluetooth_le" android:required="true"/>
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
package com.blogspot.android_er.androidblegatt;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothManager;
import android.bluetooth.le.BluetoothLeScanner;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
private BluetoothAdapter mBluetoothAdapter;
private BluetoothLeScanner mBluetoothLeScanner;
private boolean mScanning;
private static final int RQS_ENABLE_BLUETOOTH = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Check if BLE is supported on the device.
if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
Toast.makeText(this,
"BLUETOOTH_LE not supported in this device!",
Toast.LENGTH_SHORT).show();
finish();
}
getBluetoothAdapterAndLeScanner();
// Checks if Bluetooth is supported on the device.
if (mBluetoothAdapter == null) {
Toast.makeText(this,
"bluetoothManager.getAdapter()==null",
Toast.LENGTH_SHORT).show();
finish();
return;
}
}
@Override
protected void onResume() {
super.onResume();
if (!mBluetoothAdapter.isEnabled()) {
if (!mBluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, RQS_ENABLE_BLUETOOTH);
}
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == RQS_ENABLE_BLUETOOTH && resultCode == Activity.RESULT_CANCELED) {
finish();
return;
}
getBluetoothAdapterAndLeScanner();
// Checks if Bluetooth is supported on the device.
if (mBluetoothAdapter == null) {
Toast.makeText(this,
"bluetoothManager.getAdapter()==null",
Toast.LENGTH_SHORT).show();
finish();
return;
}
super.onActivityResult(requestCode, resultCode, data);
}
private void getBluetoothAdapterAndLeScanner(){
// Get BluetoothAdapter and BluetoothLeScanner.
final BluetoothManager bluetoothManager =
(BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
mBluetoothAdapter = bluetoothManager.getAdapter();
mBluetoothLeScanner = mBluetoothAdapter.getBluetoothLeScanner();
mScanning = false;
}
}
/*
Copyright (c) 2015 Intel Corporation. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-
1301 USA
*/
#include <CurieBLE.h>
const int ledPin = 13; // set ledPin to use on-board LED
BLEPeripheral blePeripheral; // create peripheral instance
BLEService ledService("19B10000-E8F2-537E-4F6C-D104768A1214"); // create service
// create switch characteristic and allow remote device to read and write
BLECharCharacteristic switchChar("19B10001-E8F2-537E-4F6C-D104768A1214", BLERead | BLEWrite);
void setup() {
Serial.begin(9600);
pinMode(ledPin, OUTPUT); // use the LED on pin 13 as an output
// set the local name peripheral advertises
blePeripheral.setLocalName("LEDCB");
// set the UUID for the service this peripheral advertises
blePeripheral.setAdvertisedServiceUuid(ledService.uuid());
// add service and characteristic
blePeripheral.addAttribute(ledService);
blePeripheral.addAttribute(switchChar);
// assign event handlers for connected, disconnected to peripheral
blePeripheral.setEventHandler(BLEConnected, blePeripheralConnectHandler);
blePeripheral.setEventHandler(BLEDisconnected, blePeripheralDisconnectHandler);
// assign event handlers for characteristic
switchChar.setEventHandler(BLEWritten, switchCharacteristicWritten);
// set an initial value for the characteristic
switchChar.setValue(0);
// advertise the service
blePeripheral.begin();
Serial.println(("Bluetooth device active, waiting for connections..."));
}
void loop() {
// poll peripheral
blePeripheral.poll();
}
void blePeripheralConnectHandler(BLECentral& central) {
// central connected event handler
Serial.print("Connected event, central: ");
Serial.println(central.address());
}
void blePeripheralDisconnectHandler(BLECentral& central) {
// central disconnected event handler
Serial.print("Disconnected event, central: ");
Serial.println(central.address());
}
void switchCharacteristicWritten(BLECentral& central, BLECharacteristic& characteristic) {
// central wrote new value to characteristic, update LED
Serial.print("Characteristic event, written: ");
if (switchChar.value()) {
Serial.println("LED on");
digitalWrite(ledPin, HIGH);
} else {
Serial.println("LED off");
digitalWrite(ledPin, LOW);
}
}
package com.blogspot.android_er.androidudpserver;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.TextView;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Date;
import java.util.Enumeration;
public class MainActivity extends AppCompatActivity {
private final static String TAG = MainActivity.class.getSimpleName();
TextView infoIp, infoPort;
TextView textViewState, textViewPrompt;
static final int UdpServerPORT = 4445;
UdpServerThread udpServerThread;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
infoIp = (TextView) findViewById(R.id.infoip);
infoPort = (TextView) findViewById(R.id.infoport);
textViewState = (TextView)findViewById(R.id.state);
textViewPrompt = (TextView)findViewById(R.id.prompt);
infoIp.setText(getIpAddress());
infoPort.setText(String.valueOf(UdpServerPORT));
}
@Override
protected void onStart() {
udpServerThread = new UdpServerThread(UdpServerPORT);
udpServerThread.start();
super.onStart();
}
@Override
protected void onStop() {
if(udpServerThread != null){
udpServerThread.setRunning(false);
udpServerThread = null;
}
super.onStop();
}
private void updateState(final String state){
runOnUiThread(new Runnable() {
@Override
public void run() {
textViewState.setText(state);
}
});
}
private void updatePrompt(final String prompt){
runOnUiThread(new Runnable() {
@Override
public void run() {
textViewPrompt.append(prompt);
}
});
}
private class UdpServerThread extends Thread{
int serverPort;
DatagramSocket socket;
boolean running;
public UdpServerThread(int serverPort) {
super();
this.serverPort = serverPort;
}
public void setRunning(boolean running){
this.running = running;
}
@Override
public void run() {
running = true;
try {
updateState("Starting UDP Server");
socket = new DatagramSocket(serverPort);
updateState("UDP Server is running");
Log.e(TAG, "UDP Server is running");
while(running){
byte[] buf = new byte[256];
// receive request
DatagramPacket packet = new DatagramPacket(buf, buf.length);
socket.receive(packet); //this code block the program flow
// send the response to the client at "address" and "port"
InetAddress address = packet.getAddress();
int port = packet.getPort();
updatePrompt("Request from: " + address + ":" + port + "\n");
String dString = new Date().toString() + "\n"
+ "Your address " + address.toString() + ":" + String.valueOf(port);
buf = dString.getBytes();
packet = new DatagramPacket(buf, buf.length, address, port);
socket.send(packet);
}
Log.e(TAG, "UDP Server ended");
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if(socket != null){
socket.close();
Log.e(TAG, "socket.close()");
}
}
}
}
private String getIpAddress() {
String ip = "";
try {
Enumeration<NetworkInterface> enumNetworkInterfaces = NetworkInterface
.getNetworkInterfaces();
while (enumNetworkInterfaces.hasMoreElements()) {
NetworkInterface networkInterface = enumNetworkInterfaces
.nextElement();
Enumeration<InetAddress> enumInetAddress = networkInterface
.getInetAddresses();
while (enumInetAddress.hasMoreElements()) {
InetAddress inetAddress = enumInetAddress.nextElement();
if (inetAddress.isSiteLocalAddress()) {
ip += "SiteLocalAddress: "
+ inetAddress.getHostAddress() + "\n";
}
}
}
} catch (SocketException e) {
// TODO Auto-generated catch block
e.printStackTrace();
ip += "Something Wrong! " + e.toString() + "\n";
}
return ip;
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
android:orientation="vertical"
tools:context="com.blogspot.android_er.androidudpserver.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />
<TextView
android:id="@+id/infoip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textStyle="italic" />
<TextView
android:id="@+id/infoport"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textStyle="italic" />
<TextView
android:id="@+id/state"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="un-initiated"
android:textSize="20dp"/>
<TextView
android:id="@+id/prompt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="18dp"/>
</LinearLayout>
Download the files
.