所以我有一个导航视图,该视图从左侧滑动,带有一个名为Bluetooth的选项卡。我希望该蓝牙按钮与具有所有蓝牙功能的另一个类连接。有什么办法可以让我连接到该功能类?抱歉,如果我不是很具体,我是一名Android Studio初学者。
我的主班:
public class PantallaDatos extends AppCompatActivity {
private DrawerLayout drawer;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pantalla_datos);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
drawer = findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar,
R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
ViewPager2 viewPager2 = findViewById(R.id.viewPager);
viewPager2.setAdapter(new DatosPagerAdapter(this));
TabLayout tabLayout = findViewById(R.id.tabLayout);
TabLayoutMediator tabLayoutMediator = new TabLayoutMediator(
tabLayout, viewPager2, new TabLayoutMediator.TabConfigurationStrategy(){
@Override
public void onConfigureTab(@NonNull TabLayout.Tab tab, int position) {
switch(position){
case 0:{
tab.setText("Medidas");
break;
}
case 1:{
tab.setText("Registros");
break;
}
case 2:{
tab.setText("Graficos");
break;
}
}
}
});
tabLayoutMediator.attach();
}
@Override
public void onBackPressed() {
if(drawer.isDrawerOpen(GravityCompat.START)){
drawer.closeDrawer(GravityCompat.START);
}else{
super.onBackPressed();
}
}
}
具有我要连接到该按钮的所有功能的类(简化):
public class AjustesConexionSensores extends AppCompatActivity implements
AdapterView.OnItemClickListener {
private static final int REQUEST_ACCESS_COARSE_LOCATION = 1;
private static final int REQUEST_ENABLE_BLUETOOTH = 11;
private TextView mEstadoBlueTv;
private ImageView mBluetIv;
private ListView mLvEmparejados, mLvDispositivos;
private Button mBotOnOff, mBotDescubrir, mBotEmp, mBotConectar;
private BluetoothAdapter mBluetoothAdapter;
private ArrayAdapter<String> listAdapter;
//Conexión bluetooth
private static final UUID MY_UUID_INSECURE = UUID.fromString("8ce255c0-200a-11e0-ac64-0800200c9a66");
BluetoothConnectionService mBluetoothConnection;
//Dispositivo BT y ArrayList de dispositivos
BluetoothDevice mBTDevice;
public ArrayList<BluetoothDevice> mBTDevices = new ArrayList<>();
//BROADCASTS
// BroadcastReceiver para ACTION_FOUND
private final BroadcastReceiver mBroadcastReceiver1 = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(mBluetoothAdapter.ACTION_STATE_CHANGED)) {
final int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, mBluetoothAdapter.ERROR);
switch(state){
case BluetoothAdapter.STATE_OFF:
showToast("Bluetooth desactivado");
mBluetIv.setImageResource(R.drawable.bt_off);
break;
case BluetoothAdapter.STATE_ON:
showToast("Bluetooth activado");
mBluetIv.setImageResource(R.drawable.bt_on);
break;
}
}
}
};
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.ajustes_conexion_sensores);
//Interfaz
mEstadoBlueTv = findViewById(R.id.statusBluetoothTv);
mBluetIv = findViewById(R.id.BluetoothIv);
mBotOnOff = findViewById(R.id.BotOnOff);
mBotEmp = findViewById(R.id.BotEmp);
mBotDescubrir= findViewById(R.id.botDesc);
mBotConectar = findViewById(R.id.botConectar);
mLvEmparejados = findViewById(R.id.lvEmparejados);
mLvDispositivos = (ListView) findViewById(R.id.lvDispositivos);
//BT Adapter
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
//Descubrir dispositivos
//List adapter para recoger los dispositivos detectados
listAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1);
mLvDispositivos.setAdapter(listAdapter);
//Check del estado del Bluetooth
checkBluetoothState();
//Registramos el receptor para la acción de recibir
registerReceiver(devicesFoundReceiver, new IntentFilter(BluetoothDevice.ACTION_FOUND));
registerReceiver(devicesFoundReceiver, new
IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_STARTED));
registerReceiver(devicesFoundReceiver, new
IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED));
mLvDispositivos.setOnItemClickListener((AdapterView.OnItemClickListener) AjustesConexionSensores.this);
// Comprobar si el Bluetooth está disponible
if (mBluetoothAdapter == null) {
mEstadoBlueTv.setText("Bluetooth no disponible.");
} else {
mEstadoBlueTv.setText("Bluetooth está disponible.");
}
// Establecer una imagen en función del estado del Bluetooth (on/off)
if (mBluetoothAdapter.isEnabled()) {
mBluetIv.setImageResource(R.drawable.bt_on);
} else {
mBluetIv.setImageResource(R.drawable.bt_off);
}
// Boton ON-OFF
mBotOnOff.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
enableDisableBT();
};
});
// Dispositivos emparejados
mBotEmp.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
checkBluetooth();
bondedDevices();
}
});
//Nuevos dispositivos
mBotDescubrir.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mBluetoothAdapter != null && mBluetoothAdapter.isEnabled()) {
//Comprobamos que el coarse location esté permitido
if (checkCoarseLocationPermission())
listAdapter.clear();
mBluetoothAdapter.startDiscovery();
} else {
checkBluetoothState();
}
}
});
//Conectar a dispositivo
mBotConectar.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startConnection();
}
});
//Hacemos check del permiso al iniciar la app
checkCoarseLocationPermission();
}
提前谢谢您
可能不是您要寻找的,但是,如果您想通过开始其他活动并因此使用其他布局来处理它,则可能不是您想要的。您只需要设置一个意图并开始一项活动即可。您都可以将信息从您的活动传递到新活动,下面是希望如何做的一个示例,希望对您有所帮助。
Intent myIntent = new Intent(myActivity.this, NewActivity.class);
Bundle bundle = new Bundle();
bundle.putString("Extra_info", somefunction.extrainfo());//Pass extra info as a string
myIntent.putExtras(bundle);
myActivity.this.startActivity(myIntent);//Run the new activity