Question

这是我的问题/问题，可能是一个非常棒的人......

我有一个活动，应用程序检查蓝牙是否已打开，如果没有，它会显示一个弹出窗口，其中有一个按钮可以激活它。

激活后，会有一个按钮，用于搜索蓝牙设备。

现在我的问题是如何配对将使用密码保护的所选设备，如果它已经配对就连接到它（再次输入密码）

连接到设备后，应转到下一页。

这是我的代码

package com.example.silcamanager96x32;

import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
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.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;
import android.view.View.OnClickListener;
import android.widget.AdapterView.OnItemClickListener;

public class Bluetooth_check extends Activity {

    //global variables
    private final static int REQUEST_ENABLE_BT = 1;
    private  ArrayAdapter<String> btArrayAdapter;

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

        btn_go();
        btn_scan();

    }

    //tijdelijke button volgende pagina
    public void btn_go(){
        Button btn_go=(Button)findViewById(R.id.Button01);
        btn_go.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                  Log.i("clicks","You Clicked B1");
              Intent i=new Intent(
                     Bluetooth_check.this,
                     home.class);
              startActivity(i);
            }
        });
    }

    //button scannen naar bluetooth apparaten en in ene lijst plaatsen
    public void btn_scan(){
        final Button scanb = (Button)findViewById(R.id.button);
        final ListView Deviceslist = (ListView)findViewById(R.id.listView1);   
        btArrayAdapter = new ArrayAdapter<String>(Bluetooth_check.this, android.R.layout.simple_list_item_1);    
        Deviceslist.setAdapter(btArrayAdapter);

        //vraagt of app bluetooth mag inschakelen
        final BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
        if (mBluetoothAdapter == null) {
            // Device does not support Bluetooth
            Toast.makeText(Bluetooth_check.this, "Your device doesnot support Bluetooth", Toast.LENGTH_LONG).show();
        }

        if (!mBluetoothAdapter.isEnabled()) {
            Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
            startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
        }

        //onclick scan button
        scanb.setOnClickListener(new OnClickListener()
        {
         public void onClick(View v)
            {
          btArrayAdapter.clear(); 
          mBluetoothAdapter.startDiscovery();
          Toast.makeText(Bluetooth_check.this, "Scanning Devices", Toast.LENGTH_LONG).show();

            }
        });

         Deviceslist.setOnItemClickListener( new OnItemClickListener() {

            public void onItemClick(AdapterView<?> arg0, View v, int position,
                    long id) {
                // onclick item gevonden apparaten

                     AlertDialog.Builder adb = new AlertDialog.Builder(
                     Bluetooth_check.this);
                     adb.setTitle("ListView OnClick");
                     adb.setMessage("Selected Item is = "
                     + Deviceslist.getItemAtPosition(position));
                     adb.setPositiveButton("Ok", null);
                     adb.show();                     
                                 }

         });

        registerReceiver(FoundReceiver, new IntentFilter(BluetoothDevice.ACTION_FOUND));
    }

    @Override
    protected void onDestroy() { 
    // TODO Auto-generated method stub 
    super.onDestroy();
    unregisterReceiver(FoundReceiver);
    }

    private final BroadcastReceiver FoundReceiver = new BroadcastReceiver(){ 
     @Override
     public void onReceive(Context context, Intent intent) { 
      // TODO Auto-generated method stub 
      String action = intent.getAction();  
      if(BluetoothDevice.ACTION_FOUND.equals(action)) {   
       BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
       btArrayAdapter.add(device.getName() + "\n" + device.getAddress());
       btArrayAdapter.notifyDataSetChanged();          
      }
  }};


}

Answer 1

在此处尝试此链接是完整代码... Android + Pair devices via bluetooth programmatically并添加对清单

的权限

<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
    <uses-permission android:name="android.permission.BLUETOOTH" />

蓝牙与所选设备配对

1 个答案: