大家好，我尝试将我的arduino连接到我的项目，但是我的代码出错了
问题是当我写这段代码
BluetoothDevice aygit = intent.getParcelableArrayExtra(BluetoothDevice.EXTRA_DEVICE);此代码给我错误
如何解决我的问题。
我的代码：
package com.softengine.mehmet.bluetooth;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.bluetooth.BluetoothDevice;
import android.widget.Toast;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Set;
import java.util.UUID;
import android.os.Handler;
public class MainActivity extends AppCompatActivity implements AdapterView.OnItemClickListener {
Button ledAc, ledKapat;
TextView text;
ListView liste;
public static final UUID myUUID = UUID.fromString("00000000-0000-1000-8000-00805F9B34FB");
public static final int baglanti = 0;
public static final int mesajOku = 1;
OutputStream outstream;
InputStream instream;
ArrayAdapter<String> adapterListesi;
BluetoothAdapter blt;
ArrayList<String> eslesen;
ArrayList<BluetoothDevice> aygitlar;
IntentFilter filtre;
BroadcastReceiver receiver;
Set<BluetoothDevice> deviceArray;
Handler mHandler=new Handler(){
public void handleMessage(Message msg){
super.handleMessage(msg);
switch (msg.what){
case baglanti:
ConnectedThread connectedThread=new ConnectedThread((BluetoothSocket)msg.obj);
text.setText("Bağlandı");
break;
case mesajOku:
byte[] bufoku=(byte[])msg.obj;
String str=new String(bufoku);
Toast.makeText(MainActivity.this, str, Toast.LENGTH_SHORT).show();
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
liste = (ListView) findViewById(R.id.listView);
liste.setOnItemClickListener(this);
adapterListesi = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_activated_1, 0);
liste.setAdapter(adapterListesi);
blt = BluetoothAdapter.getDefaultAdapter();
eslesen = new ArrayList<String>();
filtre = new IntentFilter(BluetoothDevice.ACTION_FOUND);//biz sadece yanımızda olan bluetoth cihazları ile işlem yapmak için kullanıyoruz
aygitlar = new ArrayList<BluetoothDevice>();
receiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
//xxxxx problem problem problem problem problem xxxxxxx
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
BluetoothDevice aygit = intent.getParcelableArrayExtra(BluetoothDevice.EXTRA_DEVICE);
aygitlar.add(aygit);
String s = "";
for (int i = 0; i < eslesen.size(); i++) {
if (aygit.getName().equals(eslesen.get(i))) {
s = "Eslesti";
break;
}
}
adapterListesi.add(aygit.getName() + "" + s + "" + "\n" + aygit.getAddress());
} else if (BluetoothAdapter.ACTION_STATE_CHANGED.equals(action)) {
if (blt.getState() == blt.STATE_OFF) {
bltAc();
}
}
}
};
registerReceiver(receiver, filtre);
filtre = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED);
registerReceiver(receiver, filtre);
if (blt == null) {
Toast.makeText(MainActivity.this, "Cihaz bluetooth teknolojisini desteklemiyor", Toast.LENGTH_SHORT).show();
text.setText("Bluetooth Yok");
} else {
if (blt.isEnabled()) {
bltAc();
}
secim();
startDiscovery();
ledAc = (Button) findViewById(R.id.btnAc);
ledAc.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
ledOn();
} catch (IOException e) {
}
}
});
ledKapat = (Button) findViewById(R.id.btnKapat);
ledKapat.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
ledOff();
} catch (IOException e) {
}
}
});
}
}
private void ledOff() throws IOException {
outstream.write("2".getBytes());
}
private void ledOn() throws IOException{
outstream.write("1".getBytes());
}
private void startDiscovery() {
blt.cancelDiscovery();
blt.startDiscovery();
}
private void secim() {
deviceArray = blt.getBondedDevices();//eşlesen cihazları atadık
if (deviceArray.size() > 0) {
for (BluetoothDevice aygit : deviceArray) {
eslesen.add(aygit.getName());
}
}
}
private void bltAc() {
Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(intent, 1);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_CANCELED) {
Toast.makeText(MainActivity.this, "Bluetooth aygıtını açın", Toast.LENGTH_SHORT).show();
finish();
}
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (blt.isDiscovering()) {
blt.cancelDiscovery();
}
if (adapterListesi.getItem(position).contains("Eslesti")) {
BluetoothDevice secilenAygit = aygitlar.get(position);
ConnectThread connect = new ConnectThread(secilenAygit);
connect.start();
} else {
Toast.makeText(MainActivity.this, "Aygıta balanılamadı", Toast.LENGTH_SHORT).show();
}
}
private class ConnectThread extends Thread {
private final BluetoothSocket mmSocket;
private final BluetoothDevice mmDevice;
public ConnectThread(BluetoothDevice aygit) {
BluetoothSocket tmp = null;
mmDevice = aygit;
try {
tmp = aygit.createRfcommSocketToServiceRecord(myUUID);
} catch (IOException e) {
text.setText("Bağlantı Yok");
}
mmSocket = tmp;
}
@Override
public void run() {
blt.cancelDiscovery();
try {
mmSocket.connect();
} catch (IOException e) {
try {
mmSocket.close();
} catch (IOException ee) {
}
return;
}
mHandler.obtainMessage(baglanti,mmSocket).sendToTarget();
}
public void cancel(){
try {
mmSocket.close();
}catch (Exception e){}
}
}
private class ConnectedThread extends Thread{
private final BluetoothSocket mmSocket;
public ConnectedThread(BluetoothSocket socket){
InputStream tmpIn=null;
OutputStream tmpOut=null;
try {
tmpIn=socket.getInputStream();
tmpOut=socket.getOutputStream();
}catch (IOException e){
}
instream =tmpIn;
outstream=tmpOut;
}
public void run(){
byte[]buffer;
int bytes;
while (true){
try {
buffer=new byte[1024];
bytes=instream.read(buffer);
mHandler.obtainMessage(mesajOku,bytes,-1,buffer).sendToTarget();;
}catch (IOException e){break;}
}
}
public void cancel(){
try {
mmSocket.close();
}catch (Exception e){}
}
}
}