查找Android蓝牙配对设备

我正在尝试创建一个图像按钮，当按下该按钮时，会向用户显示要连接的配对蓝牙设备的列表

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

但是，我在第##1点得到“集合不能解析为变量”， 在第2点“Marrayadapper无法解决” （##1和##2不属于代码的一部分…）

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

我使用了安卓网站上的代码，但在黑暗中，我发现自己陷入了黑暗

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

我希望得到一些指导

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

//搜寻

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

ImageButton b搜索=（ImageButton）findViewById（R.id.Search）；
b search.setOnClickListener（新视图.OnClickListener（）{
public void onClick（视图）{
##1Set-pairedDevices=mBluetoothAdapter.getBondedDevices（）；
//如果有配对的设备
如果（pairedDevices.size（）>0）{
//循环通过配对设备
用于（蓝牙设备：pairedDevices）{
//将名称和地址添加到要在列表视图中显示的阵列适配器
##2mArrayAdapter.add（device.getName（）+“\n”+device.getAddress（））；
}
}                                                                           
}                       
});

只需分别从代码的

##1Set

和

##2ArrayAdapter

中删除

#1

和

#2即可。我想你只是从另一个来源复制/粘贴，而没有注意到。这不是原始代码的一部分。它只是用于列表编号的目的
 对于1）如果您还没有这样做，请添加

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

>导入java.util.Set

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

在您的导入语句中。这将解决“设置”错误

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

对于2）声明并初始化

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

mArrayAdapter

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

例如，在您的活动中执行：

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

private ArrayAdapter<String> mArrayAdapter;

注意这一行：

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

 mArrayAdapter= new ArrayAdapter<String>(this, <your layout file>);

 // Attempt to connect to the device
 mChatService.connect(device);

此功能连接到蓝牙设备。第一次，它会要求您自动配对。配对后，下一次它将自动连接到蓝牙设备。
您好，您也可以在刚刚获得绑定设备集的位置尝试此代码。

ImageButton bSearch = (ImageButton) findViewById(R.id.Search);
bSearch.setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {                        
        ##1Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
        // If there are paired devices
        if (pairedDevices.size() > 0) {
            // Loop through paired devices
            for (BluetoothDevice device : pairedDevices) {
                // Add the name and address to an array adapter to show in a ListView
                ##2mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        }                                                                           
    }                       
});

 private ArrayAdapter<String> bondedAdapter = null;
    private ListView listViewPairedDevices = null;

@Override
    protected void onStart() {
        // TODO Auto-generated method stub
        super.onStart();
        try {
    BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    listViewPairedDevices = (ListView) findViewById(R.id.listViewPairedDevices);
    bondedAdapter = new ArrayAdapter<String>(this, R.layout.lyt_scanlist_textview);

    Set<BluetoothDevice> bondedSet = bluetoothAdapter.getBondedDevices();
                Log.v(BluetoothDemoActivity.LOG, "BluetoothDemo : bondedSet: "+bondedSet);

                int count = 0;
                if(bondedSet.size() > 0){
                    for(BluetoothDevice device : bondedSet){
                        textViewPairedDevice.setVisibility(View.VISIBLE);
                        bondedAdapter.add(device.getName()+"\n"+device.getAddress());
                        Log.v(BluetoothDemoActivity.LOG, " count = "+count++);
                    }
                }else{
                    bondedAdapter.add("No Devices");
                }

    listViewPairedDevices.setAdapter(bondedAdapter);
} catch (Exception e) {
            // TODO Auto-generated catch block
            Log.e(BluetoothDemoActivity.LOG, e.toString(),e.fillInStackTrace());
        }
    }//onStart ends 

private ArrayAdapter bondedapter=null；
私有ListView listViewPairedDevices=null；
@凌驾
受保护的void onStart（）{
//TODO自动生成的方法存根
super.onStart（）；
试一试{
BluetoothAdapter=BluetoothAdapter.getDefaultAdapter（）；
listViewPairedDevices=（ListView）findViewById（R.id.listViewPairedDevices）；
bondedAdapter=new ArrayAdapter（这个，R.layout.lyt\u scanlist\u textview）；
Set-bondedSet=bluetoothAdapter.getBondedDevices（）；
Log.v（BluetoothDemoActivity.Log，“BluetoothDemo:bondedSet:”+bondedSet）；
整数计数=0；
如果（bondedSet.size（）>0）{
用于（蓝牙设备：bondedSet）{
textViewPairedDevice.setVisibility（View.VISIBLE）；
添加（device.getName（）+“\n”+device.getAddress（））；
Log.v（BluetoothDemoActivity.Log，“count=“+count++”）；
}
}否则{
bondedAdapter.添加（“无设备”）；
}
setAdapter（绑定适配器）；
}捕获（例外e）{
//TODO自动生成的捕捉块
e（BluetoothDemoActivity.Log，e.toString（），e.fillInStackTrace（））；
}
}//开始结束
根据您的描述，您似乎有语法错误。第一个似乎只是缺少Set类的导入，另一个是您尚未定义mArrayAdapter。嘿，您能给出在我们的设备中搜索支持蓝牙的设备的完整源代码吗。提前感谢。感谢您的回复。非常感谢您的帮助。我查看了蓝牙聊天示例，很难理解。没有提供设备搜索和选择配对设备的按钮。有不同的例子吗？是的，我只是把它包括进来，以显示我的问题在哪里。好的，任何人都可以参考我的问题。我找到的解决问题的最佳方法是，我可以创建一个按钮，打开蓝牙设置屏幕。我没有意识到你可以这样做，否则我从一开始就会这么做。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。startActivity（新意图（设置、动作和蓝牙设置））；嘿，我知道它很老了，但不管怎样：P我如何在列表视图中连接设备？你能给我介绍一下这样的东西吗？或编辑。。谢谢