安卓蓝牙温度采集（配合单片机）

package jdl.android.test; import java.io.InputStream; import android.app.Activity; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.content.Context; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Paint; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.util.Log; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.Window; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.ImageButton; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { // Message types sent from the BluetoothChatService Handler public static final int MESSAGE_STATE_CHANGE = 1; public static final int MESSAGE_READ = 2; public static final int MESSAGE_WRITE = 3; public static final int MESSAGE_DEVICE_NAME = 4; public static final int MESSAGE_TOAST = 5; // Key names received from the BluetoothChatService Handler public static final String DEVICE_NAME = "device_name"; public static final String TOAST = "toast"; // Intent request codes private static final int REQUEST_CONNECT_DEVICE = 1; private static final int REQUEST_ENABLE_BT = 2; private static final int REQUEST_NEW_CARD = 3; String data = "0000"; String Button_Buffer="00000000"; String seekBar_BufferString="82"; String messege_String=""; // Layout Views private TextView mTitle; //标题 // Name of the connected device private String mConnectedDeviceName = null; // String buffer for outgoing messages private StringBuffer mOutStringBuffer; // Local Bluetooth adapter private BluetoothAdapter mBluetoothAdapter = null; // Member object for the chat services private BluetoothService mCardService = null; Context mContext = null; //G_ private int count = 0; private String str = "";//存储发过来的数据（温度值） private String ss = "";//暂存当前发过来的字节 //_G /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Set up the window layout requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); //setContentView(R.layout.main); //mAnimView = new AnimView(this); //setContentView(mAnimView); setContentView(R.layout.main); getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title); // Set up the custom title Log.e("MainActivity", "5"); Log.e("MainActivity", "7"); mTitle = (TextView) findViewById(R.id.title_left_text); //左边应用标题 Log.e("MainActivity", "622"); mTitle.setText(R.string.app_name); Log.e("MainActivity", "6"); mTitle = (TextView) findViewById(R.id.title_right_text); //右边连接状态 // Get local Bluetooth adapter Log.e("MainActivity", "8"); mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); // If the adapter is null, then Bluetooth is not supported Log.e("MainActivity", "2"); if (mBluetoothAdapter == null) { Toast.makeText(this, "蓝牙不可用！", Toast.LENGTH_LONG).show(); Log.e("MainActivity", "3"); finish(); return; } Button bt1= (Button)findViewById(R.id.bt1); bt1.setOnClickListener(new OnClickListener() { @Override public void onClick(View paramView) { // TODO Auto-generated method stub EditText ed1 = (EditText) findViewById(R.id.ed1); String s = ed1.getText().toString(); sendByte(s.getBytes()); //判断是否已经连接 if (mCardService.getState() == BluetoothService.STATE_CONNECTED){ Toast.makeText(getApplicationContext(),s, Toast.LENGTH_SHORT).show(); } else//若没有连接 { Toast.makeText(getApplicationContext(),R.string.not_connected, Toast.LENGTH_SHORT).show(); } } }); /* * 按钮2 ----请求重发 */ Button bt2= (Button)findViewById(R.id.bt2); bt2.setOnClickListener(new OnClickListener() { @Override public void onClick(View paramView) { //判断是否已经连接 if (mCardService.getState() == BluetoothService.STATE_CONNECTED){ requestSend(); } else//若没有连接 { Toast.makeText(getApplicationContext(),R.string.not_connected, Toast.LENGTH_SHORT).show(); } } }); /* * 清空温度显示值 */ Button bt3= (Button)findViewById(R.id.bt3); bt3.setOnClickListener(new OnClickListener() { TextView et1 = (TextView)findViewById(R.id.et1);//显示温度值的TextView TextView et2 = (TextView)findViewById(R.id.et2);//显示摄氏度符号的TextView @Override public void onClick(View paramView) { et1.setText(""); et2.setText(""); } }); } @Override public void onStart() { //G Toast.makeText(getApplicationContext(),"程序开始执行", Toast.LENGTH_SHORT).show(); super.onStart(); //确保蓝牙打开，然后读取名片信息显示在节目上（未打开则在返回信息处理中setupCards()） if (!mBluetoothAdapter.isEnabled()) { Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableIntent, REQUEST_ENABLE_BT); // Otherwise, setup the chat session } else { if (mCardService == null) setupCards(); //初始化ListView对象 } } @Override public synchronized void onResume() { super.onResume(); // Performing this check in onResume() covers the case in which BT was // not enabled during onStart(), so we were paused to enable it... // onResume() will be called when ACTION_REQUEST_ENABLE activity returns. if (mCardService != null) { // Only if the state is STATE_NONE, do we know that we haven't started already if (mCardService.getState() == BluetoothService.STATE_NONE) { // Start the Bluetooth chat services mCardService.start(); } } } private void setupCards() { //完成显示内容后，初始化蓝牙服务对象 mCardService = new BluetoothService(mHandler); // Initialize the buffer for outgoing messages setmOutStringBuffer(new StringBuffer("")); } public void onDestroy() { super.onDestroy(); // Stop the Bluetooth chat services if (mCardService != null) mCardService.stop(); } //开启蓝牙可见 private void ensureDiscoverable() { if (mBluetoothAdapter.getScanMode() != BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) { Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE); discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300); startActivity(discoverableIntent); } } //处理线程返回信息 private final Handler mHandler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case MESSAGE_STATE_CHANGE: Toast.makeText(MainActivity.this, "change", Toast.LENGTH_LONG