[英]Connecting a Bluetooth Device
package com.example.stef.bluetooth_version1000;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.Intent;
import android.os.Handler;
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.ListView;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
public class MainActivity extends AppCompatActivity {
private int REQUEST_ENABLE_BT=1;
private ArrayList<String> devices;
private List<BluetoothDevice> list;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Handler handler=null;
/*Creation des objets Bluetooth*/
BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter == null) {
// Device doesn't support Bluetooth
}
if (!mBluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
ListView lv=(ListView)findViewById(R.id.listview);
final Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
ArrayList<String> devices = new ArrayList<>();
for (BluetoothDevice bt : pairedDevices) {
devices.add(bt.getName() + "\n" + bt.getAddress());
}
final ArrayAdapter arrayAdapter = new ArrayAdapter(MainActivity.this, android.R.layout.simple_list_item_1, devices);
lv.setAdapter(arrayAdapter);
final BluetoothChatService bluetoothChatService= new BluetoothChatService(MainActivity.this,handler);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
bluetoothChatService.start();
bluetoothChatService.connect();
}
});
}
}
我的函數連接需要一個BluetoothDevice參數。
我希望能夠從ListView onClick()獲取它,但是我只能設法獲得一個名稱或地址。
看來我需要從“配對設備”中獲取藍牙設備。
我正在使用ConnectionChatService.java
類。
您有一個僅讀取字符串的原始適配器
實際上將藍牙設備列表存儲在自定義適配器中
從自定義類開始
public class BluetoothArrayAdapter extends ArrayAdapter<BluetoothDevice> {
// implement getView
然后,您可以使用它,例如,在Click偵聽器中將其放置在被單擊的位置
final BluetoothArrayAdapter arrayAdapter = new BluetoothArrayAdapter(MainActivity.this, R.layout.your_bluetooth_layout);
arrayAdapter.addAll(mBluetoothAdapter.getBondedDevices());
lv.setAdapter(arrayAdapter);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
bluetoothChatService.start();
bluetoothChatService.connect(arrayAdapter.getItem(i));
}
});
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