整理出一份
MainActivity.java
package com.lightblue.bluetooth_socket;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener{
private static final int REQUEST_SELECT_DEVICE = 1;
private static final int REQUEST_ENABLE_BT = 2;
private BluetoothDevice mDevice = null;
private BluetoothAdapter mBtAdapter = null;
private Button btnConnectBlueTooth;
private TextView textBlueName;
private TextView textBlueMac;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mBtAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBtAdapter == null) {
Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show();
finish();
return;
}
btnConnectBlueTooth = (Button) findViewById(R.id.connectBlueToothBtn);
textBlueName = (TextView) findViewById(R.id.bluetoothNameTextView);
textBlueMac = (TextView) findViewById(R.id.bluetoothMacTextView);
btnConnectBlueTooth.setOnClickListener(this);
}
@Override
public void onResume() {
super.onResume();
if (!mBtAdapter.isEnabled()) {
Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.d("BLE","requestCode : "+requestCode);
switch (requestCode) {
case REQUEST_SELECT_DEVICE:
if (resultCode == Activity.RESULT_OK && data != null) {
String deviceAddress = data.getStringExtra(BluetoothDevice.EXTRA_DEVICE);
mDevice = BluetoothAdapter.getDefaultAdapter().getRemoteDevice(deviceAddress);
textBlueName.setText("Bluetooth : "+mDevice.getName());
textBlueMac.setText("Bluetooth Address : "+mDevice.getAddress());
}
break;
case REQUEST_ENABLE_BT:
if (resultCode == Activity.RESULT_OK) {
Toast.makeText(this, "Bluetooth has turned on ", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(this, "Problem in BT Turning ON ", Toast.LENGTH_SHORT).show();
finish();
}
break;
default:
break;
}
}
@Override
public void onClick(View view) {
switch(view.getId()){
case R.id.connectBlueToothBtn:
Intent newIntent = new Intent(MainActivity.this, DeviceListActivity.class);
startActivityForResult(newIntent, REQUEST_SELECT_DEVICE);
break;
}
}
}
DeviceListActivity.java
public class DeviceListActivity extends Activity {
private BluetoothAdapter mBluetoothAdapter;
// private BluetoothAdapter mBtAdapter;
private TextView mEmptyList;
public static final String TAG = "DeviceListActivity";
List<BluetoothDevice> deviceList;
private DeviceAdapter deviceAdapter;
private ServiceConnection onService = null;
Map<String, Integer> devRssiValues;
private static final long SCAN_PERIOD = 10000; //10 seconds
private Handler mHandler;
private boolean mScanning;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(TAG, "onCreate");
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.title_bar);
setContentView(R.layout.device_list);
android.view.WindowManager.LayoutParams layoutParams = this.getWindow().getAttributes();
layoutParams.gravity=Gravity.TOP;
layoutParams.y = 200;
mHandler = new Handler();
// Use this check to determine whether BLE is supported on the device. Then you can
// selectively disable BLE-related features.
if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
Toast.makeText(this, "不支援BLE裝置", Toast.LENGTH_SHORT).show();
finish();
}
// Initializes a Bluetooth adapter. For API level 18 and above, get a reference to
// BluetoothAdapter through BluetoothManager.
final BluetoothManager bluetoothManager =
(BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
mBluetoothAdapter = bluetoothManager.getAdapter();
// Checks if Bluetooth is supported on the device.
if (mBluetoothAdapter == null) {
Toast.makeText(this, "不支援BLE裝置", Toast.LENGTH_SHORT).show();
finish();
return;
}
populateList();
mEmptyList = (TextView) findViewById(R.id.empty);
Button cancelButton = (Button) findViewById(R.id.btn_cancel);
cancelButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (mScanning==false) scanLeDevice(true);
else finish();
}
});
}
private void populateList() {
/* Initialize device list container */
Log.d(TAG, "populateList");
deviceList = new ArrayList<BluetoothDevice>();
deviceAdapter = new DeviceAdapter(this, deviceList);
devRssiValues = new HashMap<String, Integer>();
ListView newDevicesListView = (ListView) findViewById(R.id.new_devices);
newDevicesListView.setAdapter(deviceAdapter);
newDevicesListView.setOnItemClickListener(mDeviceClickListener);
scanLeDevice(true);
}
private void scanLeDevice(final boolean enable) {
final Button cancelButton = (Button) findViewById(R.id.btn_cancel);
if (enable) {
// Stops scanning after a pre-defined scan period.
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
mScanning = false;
mBluetoothAdapter.stopLeScan(mLeScanCallback);
cancelButton.setText("掃描");
}
}, SCAN_PERIOD);
mScanning = true;
mBluetoothAdapter.startLeScan(mLeScanCallback);
cancelButton.setText("取消");
} else {
mScanning = false;
mBluetoothAdapter.stopLeScan(mLeScanCallback);
cancelButton.setText("掃描");
}
}
private BluetoothAdapter.LeScanCallback mLeScanCallback =
new BluetoothAdapter.LeScanCallback() {
@Override
public void onLeScan(final BluetoothDevice device, final int rssi, byte[] scanRecord) {
runOnUiThread(new Runnable() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
addDevice(device,rssi);
}
});
}
});
}
};
private void addDevice(BluetoothDevice device, int rssi) {
boolean deviceFound = false;
for (BluetoothDevice listDev : deviceList) {
if (listDev.getAddress().equals(device.getAddress())) {
deviceFound = true;
break;
}
}
devRssiValues.put(device.getAddress(), rssi);
if (!deviceFound) {
deviceList.add(device);
mEmptyList.setVisibility(View.GONE);
deviceAdapter.notifyDataSetChanged();
}
}
@Override
public void onStart() {
super.onStart();
IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
}
@Override
public void onStop() {
super.onStop();
mBluetoothAdapter.stopLeScan(mLeScanCallback);
}
@Override
protected void onDestroy() {
super.onDestroy();
mBluetoothAdapter.stopLeScan(mLeScanCallback);
}
private OnItemClickListener mDeviceClickListener = new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
BluetoothDevice device = deviceList.get(position);
mBluetoothAdapter.stopLeScan(mLeScanCallback);
Bundle b = new Bundle();
b.putString(BluetoothDevice.EXTRA_DEVICE, deviceList.get(position).getAddress());
Intent result = new Intent();
result.putExtras(b);
setResult(Activity.RESULT_OK, result);
finish();
}
};
protected void onPause() {
super.onPause();
scanLeDevice(false);
}
class DeviceAdapter extends BaseAdapter {
Context context;
List<BluetoothDevice> devices;
LayoutInflater inflater;
public DeviceAdapter(Context context, List<BluetoothDevice> devices) {
this.context = context;
inflater = LayoutInflater.from(context);
this.devices = devices;
}
@Override
public int getCount() {
return devices.size();
}
@Override
public Object getItem(int position) {
return devices.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewGroup vg;
if (convertView != null) {
vg = (ViewGroup) convertView;
} else {
vg = (ViewGroup) inflater.inflate(R.layout.device_element, null);
}
BluetoothDevice device = devices.get(position);
final TextView tvadd = ((TextView) vg.findViewById(R.id.address));
final TextView tvname = ((TextView) vg.findViewById(R.id.name));
final TextView tvpaired = (TextView) vg.findViewById(R.id.paired);
final TextView tvrssi = (TextView) vg.findViewById(R.id.rssi);
tvrssi.setVisibility(View.VISIBLE);
byte rssival = (byte) devRssiValues.get(device.getAddress()).intValue();
if (rssival != 0) {
tvrssi.setText("Rssi = " + String.valueOf(rssival));
}
tvname.setText(device.getName());
tvadd.setText(device.getAddress());
if (device.getBondState() == BluetoothDevice.BOND_BONDED) {
Log.i(TAG, "device::"+device.getName());
tvname.setTextColor(Color.BLACK);
tvadd.setTextColor(Color.BLACK);
tvpaired.setTextColor(Color.GRAY);
tvpaired.setVisibility(View.VISIBLE);
tvpaired.setText("paired");
tvrssi.setVisibility(View.VISIBLE);
tvrssi.setTextColor(Color.BLACK);
} else {
tvname.setTextColor(Color.BLACK);
tvadd.setTextColor(Color.BLACK);
tvpaired.setVisibility(View.GONE);
tvrssi.setVisibility(View.VISIBLE);
tvrssi.setTextColor(Color.BLACK);
}
return vg;
}
}
}
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="@+id/connectBlueToothBtn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="ConnectBluetooth" />
<TextView
android:id="@+id/bluetoothNameTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
<TextView
android:id="@+id/bluetoothMacTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
</LinearLayout>
device_element.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="6dp"
android:textColor="#FF000000"
>
<TextView
android:id="@+id/paired"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentBottom="true"
android:text="paired"
android:textSize="12dp" />
<TextView
android:id="@+id/rssi"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_below="@+id/paired"
android:textSize="12dp" />
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:textSize="14dp" />
<TextView
android:id="@+id/address"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/name"
android:textSize="10dp" />
</RelativeLayout>
device_list.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#666" >
<TextView
android:id="@+id/title_devices"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:paddingLeft="12dp"
android:paddingRight="50dp"
android:text="選擇裝置"
android:textColor="#fff"
android:textSize="15dip" />
<ImageView
android:id="@+id/about"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:src="@android:drawable/ic_menu_info_details" />
</RelativeLayout>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ListView
android:id="@+id/new_devices"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="2"
android:stackFromBottom="true" />
<TextView
android:id="@+id/empty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="掃描" />
<Button
android:id="@+id/btn_cancel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@android:string/cancel" />
</LinearLayout>
</LinearLayout>
title_bar.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/title_devices"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="@string/app_name">
</TextView>
</LinearLayout>
圖
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