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我有一些困難，傳遞正確的信息來設置藍牙發現和配對。我一直非常關注Android開發人員示例文檔，無法弄清楚需要傳遞給此方法的內容。這是我一直在使用的網站，以供參考。registerReceiver（...）通過ClickListener
http://developer.android.com/guide/topics/connectivity/bluetooth.html
TransferFragment：
//some code used from
// http://examples.javacodegeeks.com/android/core/ui/progressdialog/android-progressdialog-example/
// http://developer.android.com/guide/topics/connectivity/bluetooth.html
package com.project.BluetoothTransfer_v1000;
import java.util.Set;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class TransferFragment extends Fragment{
private TextView filePathTextView;
private Button startTransferButton;
private ImageView bluetoothImage;
ProgressDialog transferDialog;
Handler updateBarHandler;
private static final int REQUEST_BLUETOOTH = 1;
private static final int DISCOVER_DURATION = 300;
Context context;
ArrayAdapter mArrayAdapter;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup parent, final Bundle savedInstanceState){
super.onCreate(savedInstanceState);
//set the user interface layout for this activity
setRetainInstance(false);
View v = inflater.inflate(R.layout.activity_bluetooth_transfer, parent, false);
context = this.getActivity();
filePathTextView = (TextView) v.findViewById(R.id.file_path_textView);
startTransferButton = (Button) v.findViewById(R.id.start_transfer_button);
bluetoothImage = (ImageView) v.findViewById(R.id.bluetooth_imageView);
bluetoothImage.setClickable(true);
startTransferButton.setOnClickListener(new View.OnClickListener() {
//start transfer processes
@SuppressWarnings("unchecked")
@Override
public void onClick(View v){
//check to make sure the file path text view != null
BluetoothAdapter btAdapter = BluetoothAdapter.getDefaultAdapter();
int REQUEST_ENABLE_BT = -1;
//ensure the device being used has bluetooth capability
if (btAdapter != null){
//check-enable bluetooth
if (!btAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
//ensure the textview isn't empty
//check if filepath is null
if (filePathTextView.getText().toString().length() != 0){
Set<BluetoothDevice> pairedDevices = btAdapter.getBondedDevices();
//check 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
mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
}
}//end found paired devices if
// Create a BroadcastReceiver for ACTION_FOUND
final BroadcastReceiver mReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
// When discovery finds a device
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
// Get the BluetoothDevice object from the Intent
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
// Add the name and address to an array adapter to show in a ListView
mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
}
}
};
// Register the BroadcastReceiver
IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
//COMPILER ERROR BELOW @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
//"This method registerReceiver(BroadcastReceiver, IntentFilter)
//is undefined for type new View.OnClickListener
registerReceiver(mReceiver, filter);
Intent discoverableIntent = new
Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300);
startActivity(discoverableIntent);
btAdapter.cancelDiscovery();
}//
else {
//alert user to input file path
new AlertDialog.Builder(context).setTitle("Error")
.setMessage("Please insert a filename to send.")
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {}
}).show();
}//ifnull (else)
}//bt equipped check
}//end anon class
});
bluetoothImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//display dialog showing program specs and creators
new AlertDialog.Builder(context).setTitle("About")
.setMessage("Created by:"+"\n"+ "Hal, Chris, and Roger")
.setPositiveButton("Awesome!", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
}).show();
}
});
return v;
}
}
TransferActivity：
package com.project.BluetoothTransfer_v1000;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
public class TransferActivity extends FragmentActivity{
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_transfer);
TransferFragment fragment = new TransferFragment();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.container, fragment);
fragmentTransaction.commit();
}
}