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專題進度報告

專題進度報告. 組員 : 吳家齊、江弘喻. package com.example.thinbtclient ; import java.io.*; import java.io.FilterOutputStream ; import java.io.IOException ; import java.io.OutputStream ; import java.io.InputStream ; import java.util.UUID ; import com.android.ViewEvent.R ;

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專題進度報告

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  1. 專題進度報告 組員:吳家齊、江弘喻

  2. package com.example.thinbtclient; • import java.io.*; • import java.io.FilterOutputStream; • import java.io.IOException; • import java.io.OutputStream; • import java.io.InputStream; • import java.util.UUID; • import com.android.ViewEvent.R; • import android.app.Activity; • import android.bluetooth.BluetoothAdapter; • import android.bluetooth.BluetoothDevice; • import android.bluetooth.BluetoothSocket; • import android.os.Bundle; • import android.util.Log; • import android.widget.Toast; • 把這些都import進去，因為沒有這些有下面程式碼也不能跑

  3. public class ThinBTClient extends Activity { • public static void main(String[] args) throws IOException { • BufferedReadermText = new BufferedReader(newInputStreamReader(System.in)); • } • 這邊是輸入 • double x = 0; • double y = 0; 這兩個都是宣告 • /** Called when the activity is first created. */ • private TextViewmtext; • private LinearLayoutmyLayout; • private static final String TAG = "THINBTCLIENT"; • private static final boolean D = true; • private BluetoothAdaptermBluetoothAdapter = null; • private BluetoothSocketbtSocket = null; • private InputStreaminStream = null; • private OutputStreamoutStream = null; • private PrintStream out = null; • private static final UUID MY_UUID = UUID.fromString("10203040-5060-7080-90A0-B0C0D0E0F099"); • private static String address = "00:15:83:49:42:47"; • 這些是藍芽的設定

  4. @Override • 配合繼承架構， 衍生類別的虛擬函式可以取代基礎類別的同名虛擬函式， • 運用多型指標時虛擬函式呼叫可以動態地繫結 (bind) 到該物件的虛擬函式上 • public void onCreate(Bundle savedInstanceState) • { • super.onCreate(savedInstanceState); • setContentView(R.layout.main); • mtext = (TextView) this.findViewById(R.id.myText); • myLayout = (LinearLayout) this.findViewById(R.id.myLinear); • myLayout.setOnTouchListener(mTouchListener); • 內容瀏覽 • if (D) • Log.e(TAG, "+++ ON CREATE +++"); • mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); • if (mBluetoothAdapter == null) { • Toast.makeText(this, • "Bluetooth is not available.", • Toast.LENGTH_LONG).show(); • finish(); • return; • } • 藍芽沒開

  5. if (!mBluetoothAdapter.isEnabled()) { • Toast.makeText(this, • "Please enable your BT and re-run this program.", • Toast.LENGTH_LONG).show(); • finish(); • return; • } • 藍芽有開 • if (D) • Log.e(TAG, "+++ DONE IN ON CREATE, GOT LOCAL BT ADAPTER +++"); • } • public OnTouchListenermTouchListener = new OnTouchListener() • { • public booleanonTouch(View v, MotionEvent event) • { • PrintStream p = new PrintStream( outStream ); • p.print("__X: " + event.getX() + ",__Y: " + event.getY()); • mtext.setText("__X: " + event.getX() + ",__Y: " + event.getY()); • return true; • } • }; • 觸控面板控制滑鼠座標

  6. @Override • public void onResume() { • super.onResume(); • if (D) { • Log.e(TAG, "+ ON RESUME +"); • Log.e(TAG, "+ ABOUT TO ATTEMPT CLIENT CONNECT +"); • } • BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address); • try { • btSocket = device.createRfcommSocketToServiceRecord(MY_UUID); • } catch (IOException e) { • Log.e(TAG, "ON RESUME: Socket creation failed.", e); • } • 讀取藍芽裝置的編碼

  7. mBluetoothAdapter.cancelDiscovery(); • try { • btSocket.connect(); • Log.e(TAG, "ON RESUME: BT connection established, data transfer link open."); • } catch (IOException e) { • try { • btSocket.close(); • } catch (IOException e2) { • Log.e(TAG,"ON RESUME: Unable to close socket during connection failure", e2); • } • } • 尋找藍芽發送端的通道

  8. if (D) • Log.e(TAG, “+ ABOUT TO SAY SOMETHING TO SERVER +”); try { • outStream = btSocket.getOutputStream(); • } catch (IOException e) { • Log.e(TAG, "ON RESUME: Output stream creation failed.", e); • } • String message = "Hello message from client to server."; byte[] msgBuffer = message.getBytes(); • try { • outStream.write(msgBuffer); • } catch (IOException e) { • Log.e(TAG, "ON RESUME: Exception during write.", e); • } • } • 印出Stream的訊息

  9. @Override • public void onPause() { • super.onPause(); • if (D) • Log.e(TAG, "- ON PAUSE -"); • if (outStream != null) { • try { • outStream.flush(); • } catch (IOException e) { • Log.e(TAG, "ON PAUSE: Couldn't flush output stream.", e); • } • } • try { • btSocket.close(); • } catch (IOException e2) { • Log.e(TAG, "ON PAUSE: Unable to close socket.", e2); • } • } • 關閉藍芽

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