仿小米运动的蓝牙开源项目(附详细实现说明+源码)

托瓦兹莱纳斯是一个天才.
这个项目主要以蓝牙和自己diy的手环连接,可以记录测试数据,绘制成折线坐标图之类的功能.

项目结构很简单

6个类,其中AcceptThread,ConnectedThread,为线程工具类.只有两个界面活动类,分别是MainActivity,DataActivity;然后ViewHandler 是为了实现异步改变UI , CircleTextView是我自定义的TextView.

大概思路是通过 AcceptThread 连接蓝牙设备 ,ConnectedThread 建立流通信.然后收到信息后用本地广播 LocalBroadcast 进行本地全局 , 再触发 handler 来更改ui .

主界面那个转圈的小球用的是动画 animation 为了保证以某一圆心旋转,所以其实旋转的是一个 framlayout.而圆点是一个位于framlayout左中间的button哈哈.
关于曲线坐标图,我用了一个挺不错的框架.https://github.com/QQ951127336/SmallChart

项目源码
https://github.com/QQ951127336/Bluetooth-Assistant

注:android5.0后小变化
需添加权限
android.permission.ACCESS_COARSE_LOCATION
贴代码了

MainActivity

package com.tree.max.assistant;import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Handler;
import android.os.Message;
import android.support.design.widget.Snackbar;
import android.support.v4.content.LocalBroadcastManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.ContentFrameLayout;
import android.util.Log;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;import java.util.Set;public class MainActivity extends AppCompatActivity {final int NUMBER_CHANGED=1;//用来判断是否接到数据TextView numberView;final String name = "HC-06";//设备名字LinearLayout liitleButton ;FrameLayout contentFrameLayout ;Button startBuletooth,connectBlueTooth,dataButton;BluetoothAdapter bluetoothAdapter;ArrayAdapter<String> arrayAdapter ;ListView listView;BroadcastReceiver receiver;String number = "0";LocalReceiver localReceiver;int i  = 0;final Handler handler = new Handler(){@Overridepublic void handleMessage(Message msg) {switch (msg.what){case NUMBER_CHANGED:numberView.setText(number);//更改UI数据break;}}};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main_new);init();circle();//        arrayAdapter = new ArrayAdapter<String>(MainActivity.this,R.layout.list_item);listView.setAdapter(arrayAdapter);bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();//蓝牙适配器if (bluetoothAdapter == null){Snackbar.make(startBuletooth,"You have no bluetooth",Snackbar.LENGTH_INDEFINITE).show();}receiver = new BroadcastReceiver() {@Overridepublic void onReceive(Context context, Intent intent) {String action = intent.getAction();if (BluetoothDevice.ACTION_FOUND.equals(action)){BluetoothDevice device =intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);// arrayAdapter.add(device.getName()+ " : "+device.getAddress());if (device.getName().equals(name)) {findDevice(device);Log.e("device",device.getName());}}}};IntentFilter intentFilter = new IntentFilter(BluetoothDevice.ACTION_FOUND);//找到设备发出广播registerReceiver(receiver,intentFilter);}@Overridepublic void onResume(){super.onResume();IntentFilter intentFilter = new IntentFilter();intentFilter.addAction("LOCAL_BROAD_EV_PROGRESS");//本地UI线程广播localReceiver= new LocalReceiver();LocalBroadcastManager localBroadcastManager = LocalBroadcastManager.getInstance(this);localBroadcastManager.registerReceiver(localReceiver,intentFilter);}@Overridepublic void onPause(){super.onPause();}public void findDevice(BluetoothDevice device){if (device.getName().equals(name)){Log.e("device","find");if (bluetoothAdapter.isDiscovering()){bluetoothAdapter.cancelDiscovery();}AcceptThread acceptThread = new AcceptThread(device,MainActivity.this);acceptThread.start();}}@Overrideprotected void onDestroy() {super.onDestroy();unregisterReceiver(receiver);unregisterReceiver(localReceiver);}private void init(){numberView = (TextView)findViewById(R.id.numberTextView);liitleButton = (LinearLayout) findViewById(R.id.little_circle);contentFrameLayout = (FrameLayout) findViewById(R.id.contentLayout);startBuletooth = (Button)findViewById(R.id.startBluetooth);connectBlueTooth = (Button)findViewById(R.id.connectBluetooth);dataButton = (Button)findViewById(R.id.dataButton);listView = (ListView)findViewById(R.id.listView);ClickListener clickListener = new ClickListener();startBuletooth.setOnClickListener(clickListener);connectBlueTooth.setOnClickListener(clickListener);dataButton.setOnClickListener(clickListener);}public void circle(){Animation sanimation = AnimationUtils.loadAnimation(MainActivity.this,R.anim.circle_anim);liitleButton.startAnimation(sanimation);sanimation.setAnimationListener(new Animation.AnimationListener() {@Overridepublic void onAnimationStart(Animation animation) {}@Overridepublic void onAnimationEnd(Animation animation) {circle();}@Overridepublic void onAnimationRepeat(Animation animation) {}});}class ClickListener implements View.OnClickListener {@Overridepublic void onClick(View view) {switch (view.getId()){case R.id.startBluetooth://开启蓝牙if (!bluetoothAdapter.isEnabled()){int REQUEST_ENABLE_BT = 1;Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);startActivityForResult(intent,REQUEST_ENABLE_BT);}break;case R.id.connectBluetooth://扫描,连接设备if (bluetoothAdapter.isDiscovering()) {bluetoothAdapter.cancelDiscovery();i = 0;}bluetoothAdapter.startDiscovery();break;case R.id.dataButton://进入数据界面Intent intent = new Intent(MainActivity.this,DataActivity.class);startActivity(intent);}}}private class LocalReceiver extends BroadcastReceiver{//本地ui控制广播@Overridepublic void onReceive(Context context, Intent intent) {switch (intent.getAction()){case "LOCAL_BROAD_EV_PROGRESS":Bundle bundle = intent.getExtras();number = bundle.getString("Times");Message msg =new Message();msg.what =NUMBER_CHANGED;handler.sendMessage(msg);i++;if (i==1){Snackbar.make(startBuletooth,"已连接到手环",Snackbar.LENGTH_SHORT).show();}break;}}}}

DataActivity

package com.tree.max.assistant;import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.Color;
import android.graphics.PointF;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.Nullable;
import android.support.v4.content.LocalBroadcastManager;import com.idtk.smallchart.chart.LineChart;
import com.idtk.smallchart.data.LineData;
import com.idtk.smallchart.interfaces.iData.ILineData;import java.util.ArrayList;/*** Created by max on 17-5-18.*/public class DataActivity extends Activity {LineChart lineChart;LineData lineData;ArrayList<ILineData> dataList;ArrayList<PointF> linePointList ;LocalReceiver localReceiver;int[] x = new int[10];int[] y = new int[10];final int NUMBER_CHANGED = 1;String number;final Handler handler = new Handler(){@Overridepublic void handleMessage(Message msg) {switch (msg.what){case NUMBER_CHANGED:lineChart.setDataList(dataList);break;}}};@Overrideprotected void onCreate(@Nullable Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.data_view);init();linePointList.add(new PointF(1,2));linePointList.add(new PointF(10,10));linePointList.add(new PointF(100,100));linePointList.add(new PointF(200,200));lineData.setValue(linePointList);lineData.setColor(Color.CYAN);lineData.setPaintWidth(1);lineData.setTextSize(4);dataList.add(lineData);lineChart.isAnimated = false;lineChart.setDataList(dataList);IntentFilter intentFilter = new IntentFilter();intentFilter.addAction("LOCAL_BROAD_EV_PROGRESS");localReceiver= new LocalReceiver();LocalBroadcastManager localBroadcastManager = LocalBroadcastManager.getInstance(this);localBroadcastManager.registerReceiver(localReceiver,intentFilter);}@Overrideprotected void onDestroy() {super.onDestroy();unregisterReceiver(localReceiver);}public void init(){lineChart = (LineChart)findViewById(R.id.times_data_view);lineData = new LineData();linePointList = new ArrayList<>();dataList = new ArrayList<>();for (int j= 0; j<10;j++){x[j] = j*10;}}private class LocalReceiver extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {switch(intent.getAction()) {case "LOCAL_BROAD_EV_PROGRESS":Bundle bundle = intent.getExtras();number = bundle.getString("Times");for (int i = 1;i<=9;i++){x[i-1] = x[i];y[i-1] = y[i];}x[9] = 10;y[9] = 10;linePointList.clear();for (int i = 0 ; i<10;i++){linePointList.add(new PointF(x[i],y[i]));}lineData.setValue(linePointList);dataList.clear();dataList.add(lineData);Message msg =new Message();msg.what =NUMBER_CHANGED;handler.sendMessage(msg);}}}
}

AcceptThread

package com.tree.max.assistant;import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothServerSocket;
import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.support.design.internal.NavigationMenu;
import android.util.Log;
import android.widget.TextView;import java.io.IOException;
import java.util.UUID;/*** Created by max on 17-5-17.*/public class AcceptThread extends Thread {private final BluetoothSocket mmSocket;private final BluetoothDevice mmDevice;private Context context;private final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");public AcceptThread(BluetoothDevice device,Context context) {// Use a temporary object that is later assigned to mmSocket,// because mmSocket is finalLog.e("AcceptThread","start");BluetoothSocket tmp = null;mmDevice = device;this.context = context;// Get a BluetoothSocket to connect with the given BluetoothDevicetry {// MY_UUID is the app's UUID string, also used by the server codetmp = device.createRfcommSocketToServiceRecord(MY_UUID);} catch (IOException e) { }mmSocket = tmp;}public void run() {// Cancel discovery because it will slow down the connection
//        mBluetoothAdapter.cancelDiscovery();try {// Connect the device through the socket. This will block// until it succeeds or throws an exceptionmmSocket.connect();} catch (IOException connectException) {// Unable to connect; close the socket and get outtry {mmSocket.close();} catch (IOException closeException) { }return;}// Do work to manage the connection (in a separate thread)manageConnectedSocket(mmSocket);}/** Will cancel an in-progress connection, and close the socket */public void cancel() {try {mmSocket.close();} catch (IOException e) { }}private void manageConnectedSocket(BluetoothSocket socket) {Log.e("AcceptThread","finished");ConnectedThread connectedThread = new ConnectedThread(socket,context);connectedThread.start();}}

ConnectedThread

package com.tree.max.assistant;import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Message;
import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;
import android.widget.TextView;import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import android.os.Handler;/*** Created by max on 17-5-17.*/public class ConnectedThread extends Thread {private final BluetoothSocket mmSocket;private final InputStream mmInStream;private final OutputStream mmOutStream;Handler mHandler;Message message;Bundle bundle;LocalBroadcastManager localBroadcastManager;Intent intent = new Intent("LOCAL_BROAD_EV_PROGRESS");public ConnectedThread(BluetoothSocket socket,Context context) {localBroadcastManager = LocalBroadcastManager.getInstance(context);Log.e("ConnectedThread","start");message = new Message();bundle = new Bundle();mmSocket = socket;InputStream tmpIn = null;OutputStream tmpOut = null;// Get the input and output streams, using temp objects because// member streams are finaltry {tmpIn = socket.getInputStream();tmpOut = socket.getOutputStream();} catch (IOException e) { }mmInStream = tmpIn;mmOutStream = tmpOut;}public void run() {byte[] buffer = new byte[1024];  // buffer store for the streamint bytes; // bytes returned from read()// Keep listening to the InputStream until an exception occurswhile (true) {try {// Read from the InputStreambytes = mmInStream.read(buffer);// Send the obtained bytes to the UI activityString str = new String(buffer, "ISO-8859-1");str = str.substring(0, bytes);Log.e("recv", str);Bundle bundle = new Bundle();bundle.putString("Times",str);intent.putExtras(bundle);localBroadcastManager.sendBroadcast(intent);} catch (IOException e) {break;}}}/* Call this from the main activity to send data to the remote device */public void write(byte[] bytes) {try {mmOutStream.write(bytes);} catch (IOException e) { }}/* Call this from the main activity to shutdown the connection */public void cancel() {try {mmSocket.close();} catch (IOException e) { }}}

ViewHandler

package com.tree.max.assistant;import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;/*** Created by max on 17-5-17.*/public class ViewHandler extends Handler {public ViewHandler(){}public ViewHandler(Looper looper){super(looper);}@Overridepublic void handleMessage(Message msg){super.handleMessage(msg);Bundle b = msg.getData();String times =b.getString("Size");sendMessage(msg);}
}

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