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关于蓝牙的操作(开启+关闭+搜索+可被发现蓝牙)
【关于蓝牙的操作(开启+关闭+搜索+可被发现蓝牙)】activity_main.xml
MainActivity.java
package com.wzq.bluetooth;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;
public class MainActivity extends AppCompatActivity {//代替findviewByid;
@BindView(R.id.btn_start)
Button btnStart;
@BindView(R.id.btn_stop)
Button btnStop;
@BindView(R.id.btn_discoverable)
Button btnSearch;
@BindView(R.id.btn_search)
Button button4;
private BluetoothAdapter bluetoothAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
//获取蓝牙适配器
bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
}@OnClick({R.id.btn_start, R.id.btn_stop, R.id.btn_search, R.id.btn_discoverable})
public void onViewClicked(View view) {
switch (view.getId()) {
case R.id.btn_start:
bluetoothAdapter.enable();
Toast.makeText(MainActivity.this,"蓝牙已打开",Toast.LENGTH_SHORT).show();
break;
case R.id.btn_stop:
bluetoothAdapter.disable();
Toast.makeText(MainActivity.this,"蓝牙已关闭",Toast.LENGTH_SHORT).show();
break;
case R.id.btn_discoverable:
discoverableBluetooth();
break;
case R.id.btn_search:
searchBluetooh();
break;
}
}/**
* 打开蓝牙的可检测性
*/
private void discoverableBluetooth() {Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
startActivityForResult(intent,0);
Toast.makeText(MainActivity.this,"蓝牙可检测性已打开",Toast.LENGTH_SHORT).show();
}//搜索蓝牙
private void searchBluetooh() {
//添加蓝牙可以被发现
IntentFilter intentFilter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
MBluetoothBroadCast mBluetoothBroadCast = new MBluetoothBroadCast();
registerReceiver(mBluetoothBroadCast,intentFilter);
IntentFilter intentFilter1 = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
registerReceiver(mBluetoothBroadCast,intentFilter1);
//开始找蓝牙设备
bluetoothAdapter.startDiscovery();
}//符合我注册的过滤器 ,就可以进入onReceive方法
class MBluetoothBroadCast extends BroadcastReceiver{
//一旦被发现或链接,我们就能能收到广播;
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
//如果我们搜索到了其他的蓝牙,就会进入这个判断
if( BluetoothDevice.ACTION_FOUND.equals(action)){
//得到搜索到的蓝牙设备
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if(device.getBondState()!=BluetoothDevice.BOND_BONDED){
//用设备获取蓝牙名字
System.out.println(device.getName()+",,,,,,,,,,,,,,,,");
}
//如果搜索完毕,会进入这个判断;
}else if(BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)){
Toast.makeText(MainActivity.this, "已搜数完成", Toast.LENGTH_LONG).show();
}}
}@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
}}
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