使应用程序搜索蓝牙 mac 地址并连接到它（如果可用）“Android Studio”

Question

我不是android studio开发人员或java开发人员，但对于我的毕业项目，我需要制作一个连接到HC-05蓝牙模块“Arduino”的android应用程序，然后开始发送和接收字节......我有通过向您显示蓝牙设备列表找到了很多连接到蓝牙模块的项目，然后您可以选择要连接的设备... 但是我不想用这个方法我想找个方法搜索特定的蓝牙mac地址，如果可用就开始连接，如果不可用，应用会继续搜索...

我没有任何经验如何以编程方式做到这一点。 所以请耐心等待：D

我已经完成了 XML 设计...

我要在此处添加mac地址连接代码

package mdluex.smartx;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;


public class ActivityControlCenter extends AppCompatActivity {

    private int room1_str = 1;
    private int room2_str = 0;
    private int room3_str = 1;
    private int room4_str = 1;
    private int room5_str = 1;
    private int room6_str = 1;

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

        final RelativeLayout room1_btn = (RelativeLayout) this.findViewById(R.id.room1_btn);
        final TextView room1_st = (TextView) this.findViewById(R.id.room1_st);
        final ImageView room1_img = (ImageView) this.findViewById(R.id.room1_img);
        room1_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room1_str == 0){
                    room1_str = 1;
                    room1_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room1_st.setText("ON");
                    room1_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room1_str = 0;
                    room1_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room1_st.setText("OFF");
                    room1_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });

        final RelativeLayout room2_btn = (RelativeLayout) this.findViewById(R.id.room2_btn);
        final TextView room2_st = (TextView) this.findViewById(R.id.room2_st);
        final ImageView room2_img = (ImageView) this.findViewById(R.id.room2_img);
        room2_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room2_str == 0){
                    room2_str = 1;
                    room2_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room2_st.setText("ON");
                    room2_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room2_str = 0;
                    room2_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room2_st.setText("OFF");
                    room2_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });

        final RelativeLayout room3_btn = (RelativeLayout) this.findViewById(R.id.room3_btn);
        final TextView room3_st = (TextView) this.findViewById(R.id.room3_st);
        final ImageView room3_img = (ImageView) this.findViewById(R.id.room3_img);
        room3_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room3_str == 0){
                    room3_str = 1;
                    room3_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room3_st.setText("ON");
                    room3_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room3_str = 0;
                    room3_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room3_st.setText("OFF");
                    room3_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });

        final RelativeLayout room4_btn = (RelativeLayout) this.findViewById(R.id.room4_btn);
        final TextView room4_st = (TextView) this.findViewById(R.id.room4_st);
        final ImageView room4_img = (ImageView) this.findViewById(R.id.room4_img);
        room4_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room4_str == 0){
                    room4_str = 1;
                    room4_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room4_st.setText("ON");
                    room4_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room4_str = 0;
                    room4_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room4_st.setText("OFF");
                    room4_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });

        final RelativeLayout room5_btn = (RelativeLayout) this.findViewById(R.id.room5_btn);
        final TextView room5_st = (TextView) this.findViewById(R.id.room5_st);
        final ImageView room5_img = (ImageView) this.findViewById(R.id.room5_img);
        room5_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room5_str == 0){
                    room5_str = 1;
                    room5_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room5_st.setText("ON");
                    room5_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room5_str = 0;
                    room5_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room5_st.setText("OFF");
                    room5_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });

        final RelativeLayout room6_btn = (RelativeLayout) this.findViewById(R.id.room6_btn);
        final TextView room6_st = (TextView) this.findViewById(R.id.room6_st);
        final ImageView room6_img = (ImageView) this.findViewById(R.id.room6_img);
        room6_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room6_str == 0){
                    room6_str = 1;
                    room6_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room6_st.setText("ON");
                    room6_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room6_str = 0;
                    room6_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room6_st.setText("OFF");
                    room6_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });
    }
}

这是 XML 设计 Activity Design

the full project code on GitHub

Answer 1

我找到了解决方案：D 谢谢，伙计们...

My full project 包含此代码：

package mdluex.smartx;

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Set;
import java.util.UUID;


public class ActivityControlCenter extends AppCompatActivity {

    private int room1_str = 1;
    private int room2_str = 0;
    private int room3_str = 1;
    private int room4_str = 1;
    private int room5_str = 1;
    private int room6_str = 1;
    String deviceName = "HC-05";
    BluetoothDevice result = null;
    BluetoothAdapter bluetoothAdapter=BluetoothAdapter.getDefaultAdapter();
    private BluetoothSocket socket;
    private OutputStream outputStream;
    private InputStream inputStream;
    private final UUID PORT_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");//Serial Port Service ID


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

        if (bluetoothAdapter == null) {
            Toast.makeText(getApplicationContext(),"Device doesnt Support Bluetooth",Toast.LENGTH_SHORT).show();
        }
        if(!bluetoothAdapter.isEnabled())
        {
            Intent enableAdapter = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
            startActivityForResult(enableAdapter, 0);
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

        Set<BluetoothDevice> devices = bluetoothAdapter.getBondedDevices();
        if (devices != null) {
            for (BluetoothDevice device : devices) {
                if (deviceName.equals(device.getName())) {
                    Toast.makeText(getApplicationContext(),"SamrtX is available ",Toast.LENGTH_SHORT).show();
                    result = device;
                    boolean connected=true;
                    try {
                        socket = result.createRfcommSocketToServiceRecord(PORT_UUID);
                        socket.connect();
                        Toast.makeText(getApplicationContext(),"Connected",Toast.LENGTH_SHORT).show();
                    } catch (IOException e) {
                        e.printStackTrace();
                        connected=false;
                        Toast.makeText(getApplicationContext(),"SamrtX is not available ",Toast.LENGTH_SHORT).show();
                    }
                    if(connected)
                    {
                        try {
                            outputStream=socket.getOutputStream();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                        try {
                            inputStream=socket.getInputStream();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }

                    }
                    break;
                }
            }
        }

        final RelativeLayout room1_btn = (RelativeLayout) this.findViewById(R.id.room1_btn);
        final TextView room1_st = (TextView) this.findViewById(R.id.room1_st);
        final ImageView room1_img = (ImageView) this.findViewById(R.id.room1_img);
        room1_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room1_str == 0){
                    room1_str = 1;
                    if (socket!=null)
                    {
                        try
                        {
                            socket.getOutputStream().write("a".toString().getBytes());
                        }
                        catch (IOException e)
                        {
                            Toast.makeText(getApplicationContext(),"Error ",Toast.LENGTH_SHORT).show();
                        }
                    }
                    room1_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room1_st.setText("ON");
                    room1_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room1_str = 0;
                    if (socket!=null)
                    {
                        try
                        {
                            socket.getOutputStream().write("b".toString().getBytes());
                        }
                        catch (IOException e)
                        {
                            Toast.makeText(getApplicationContext(),"Error ",Toast.LENGTH_SHORT).show();
                        }
                    }
                    room1_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room1_st.setText("OFF");
                    room1_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });

        final RelativeLayout room2_btn = (RelativeLayout) this.findViewById(R.id.room2_btn);
        final TextView room2_st = (TextView) this.findViewById(R.id.room2_st);
        final ImageView room2_img = (ImageView) this.findViewById(R.id.room2_img);
        room2_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room2_str == 0){
                    room2_str = 1;
                    room2_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room2_st.setText("ON");
                    room2_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room2_str = 0;
                    room2_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room2_st.setText("OFF");
                    room2_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });

        final RelativeLayout room3_btn = (RelativeLayout) this.findViewById(R.id.room3_btn);
        final TextView room3_st = (TextView) this.findViewById(R.id.room3_st);
        final ImageView room3_img = (ImageView) this.findViewById(R.id.room3_img);
        room3_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room3_str == 0){
                    room3_str = 1;
                    room3_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room3_st.setText("ON");
                    room3_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room3_str = 0;
                    room3_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room3_st.setText("OFF");
                    room3_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });

        final RelativeLayout room4_btn = (RelativeLayout) this.findViewById(R.id.room4_btn);
        final TextView room4_st = (TextView) this.findViewById(R.id.room4_st);
        final ImageView room4_img = (ImageView) this.findViewById(R.id.room4_img);
        room4_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room4_str == 0){
                    room4_str = 1;
                    room4_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room4_st.setText("ON");
                    room4_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room4_str = 0;
                    room4_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room4_st.setText("OFF");
                    room4_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });

        final RelativeLayout room5_btn = (RelativeLayout) this.findViewById(R.id.room5_btn);
        final TextView room5_st = (TextView) this.findViewById(R.id.room5_st);
        final ImageView room5_img = (ImageView) this.findViewById(R.id.room5_img);
        room5_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room5_str == 0){
                    room5_str = 1;
                    room5_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room5_st.setText("ON");
                    room5_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room5_str = 0;
                    room5_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room5_st.setText("OFF");
                    room5_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });

        final RelativeLayout room6_btn = (RelativeLayout) this.findViewById(R.id.room6_btn);
        final TextView room6_st = (TextView) this.findViewById(R.id.room6_st);
        final ImageView room6_img = (ImageView) this.findViewById(R.id.room6_img);
        room6_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (room6_str == 0){
                    room6_str = 1;
                    room6_btn.setBackgroundResource(R.drawable.btn_grid_nor);
                    room6_st.setText("ON");
                    room6_img.setImageResource(R.drawable.lamp_on);
                }
                else {
                    room6_str = 0;
                    room6_btn.setBackgroundResource(R.drawable.btn_grid_off);
                    room6_st.setText("OFF");
                    room6_img.setImageResource(R.drawable.lamp_off);
                }
            }
        });
    }
}