package com.himi;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
/**
* @author Himi
* @蓝牙 需要在AndroidMainfest.xml中添加权限
*/
public class MainActivity extends Activity implements OnClickListener {
//按钮组件
public static Button btConnect, btOpen, btIsVisible, btSearch;
//蓝牙适配器
public static BluetoothAdapter btAda;
//UUID协议
public static final String SPP_UUID = "00001101-0000-1000-8000-00805F9B34FB";
//蓝牙连接
public static BluetoothSocket btSocket;
//单利本类
public static MainActivity ma;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ma = this;
//这里没有设置全屏,为了便于观察当前蓝牙是否打开的状态变化
//getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
//实例按钮
btOpen = (Button) findViewById(R.id.Btn_OpenBt);
btIsVisible = (Button) findViewById(R.id.Btn_BtIsVisible);
btSearch = (Button) findViewById(R.id.Btn_SearchDrives);
btConnect = (Button) findViewById(R.id.Btn_ConnectDrives);
//为按钮绑定监听器
btOpen.setOnClickListener(this);
btIsVisible.setOnClickListener(this);
btSearch.setOnClickListener(this);
btConnect.setOnClickListener(this);
//实例蓝牙适配器
btAda = BluetoothAdapter.getDefaultAdapter();
if (btAda.getState() == BluetoothAdapter.STATE_OFF) {
btOpen.setText("打开蓝牙");
} else if (btAda.getState() == BluetoothAdapter.STATE_ON) {
btOpen.setText("关闭蓝牙");
}
// 注册Receiver来获取蓝牙设备相关的结果
IntentFilter intent = new IntentFilter();
intent.addAction(BluetoothDevice.ACTION_FOUND);// 远程设备发现动作。
intent.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);//远程设备的键态的变化动作。
intent.addAction(BluetoothAdapter.ACTION_SCAN_MODE_CHANGED);//蓝牙扫描本地适配器模改变动作。
intent.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);//状态改变动作
registerReceiver(searchDevices, intent);//注册接收
}
//监听动作
private BroadcastReceiver searchDevices = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
//搜索设备时,取得设备的MAC地址
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
String str = "设备:" + device.getName() + "*" + device.getAddress();
if (MySurfaceView.vc_str != null) {
if (MySurfaceView.vc_str.size() != 0) {
for (int j = 0; j < MySurfaceView.vc_str.size(); j++) {
// 防止重复添加
if (MySurfaceView.vc_str.elementAt(j).equals(str) == false) {
// 容器添加发现的设备名称和mac地址
MySurfaceView.vc_str.addElement(str);
}
}
} else {
MySurfaceView.vc_str.addElement(str);
}
}
}
}
};
@Override
protected void onDestroy() {
this.unregisterReceiver(searchDevices);
super.onDestroy();
System.exit(0);
}
@Override
public void onClick(View v) {
if (MySurfaceView.gameState != MySurfaceView.CONNTCTED) {
if (v == btOpen) {//蓝牙开关
if (btAda.getState() == BluetoothAdapter.STATE_OFF) {
btAda.enable();
btOpen.setText("关闭蓝牙");
} else if (btAda.getState() == BluetoothAdapter.STATE_ON) {
btAda.disable();
btOpen.setText("打开蓝牙");
}
} else if (v == btIsVisible) {//蓝牙是否可见
Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
intent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 110);
//第二个参数是本机蓝牙被发现的时间,系统默认范围[1-300],超过范围默认300,小于范围默认120
startActivity(intent);
} else if (v == btSearch) {//搜索蓝牙
if (btAda.getState() == BluetoothAdapter.STATE_OFF) {// 如果蓝牙还没打开
Toast.makeText(MainActivity.this, "请先打开蓝牙", 1000).show();
return;
}
setTitle("本机蓝牙地址:" + btAda.getAddress());
MySurfaceView.vc_str.removeAllElements();
btAda.startDiscovery();
} else if (v == btConnect) {
if (MySurfaceView.vc_str.size() == 0) {
Toast.makeText(MainActivity.this, "当前没有设备", 1000).show();
} else {
Intent intent = new Intent();//别忘记声明咱们要打开的这个Activity
intent.setClass(this, ChoiceDrivesList.class);
this.startActivity(intent);
}
}
} else {
Toast.makeText(this, "这里只是一个Demo示例,很多情况没有进行处理,为了等出现误操作造成异常,请重新运行项目!", Toast.LENGTH_LONG).show();
this.finish();
}
}
}