上創建應用程序

我正在學習如何與Android Studio中創建應用程序，一些錯誤，這是我的代碼來源：上創建應用程序

package com.example.droide; 
    import android.app.Activity; 
    import android.bluetooth.BluetoothAdapter; 
    import android.content.Intent; 
    import android.os.Bundle; 
    import android.os.Handler; 
    import android.os.Message; 
    import android.util.Log; 
    import android.view.View; 
    import android.view.View.OnClickListener; 
    import android.widget.Button; 
    import android.widget.ImageView; 
    import android.widget.TextView; 
    import android.app.Activity; 
    import android.bluetooth.BluetoothAdapter; 
    import android.content.Intent; 
    import android.os.Bundle; 
    import android.os.Handler; 
    import android.os.Message; 
    import android.util.Log; 
    import android.view.View; 
    import android.view.View.OnClickListener; 
    import android.widget.Button; 
    import android.widget.ImageView; 
    import android.widget.TextView; 

    public class DroideSphereRuhlmannActivity extends Activity implements  OnClickListener { 
    private TextView logview; 
    private Button connect, deconnect; 
    private ImageView forwardArrow, backArrow, rightArrow, leftArrow, stop, topleftArrow, toprightArrow, backleftArrow, backrightArrow; 
    private BluetoothAdapter mBluetoothAdapter = null; 
    private String[] logArray = null; 
    private BtInterface bt = null; 

    static final String TAG = "Droid"; 
    static final int REQUEST_ENABLE_BT = 3; 

    final Handler handler = new Handler() { 
     public void handleMessage(Message msg) { 
      String data = msg.getData().getString("receivedData"); 
      addToLog(data); 
     } 
    }; 

    final Handler handlerStatus = new Handler() { 
     public void handleMessage(Message msg) { 
      int status = msg.arg1; 
      if(status == BtInterface.CONNECTED) { 
       addToLog("Connected"); 
      } else if(status == BtInterface.DISCONNECTED) { 
       addToLog("Disconnected"); 
      } 
     } 
    }; 

    private void addToLog(String message){ 
     for (int i = 1; i < logArray.length; i++){ 
      logArray[i-1] = logArray[i]; 
     } 
     logArray[logArray.length - 1] = message; 

     logview.setText(""); 
     for (int i = 0; i < logArray.length; i++){ 
      if (logArray[i] != null){ 
       logview.append(logArray[i] + "\n"); 
      } 
     } 
    } 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_android_remote); 
     logview = (TextView)findViewById(R.id.logview); 
     logArray = new String[3]; 
     connect = (Button)findViewById(R.id.connect); 
     connect.setOnClickListener(this); 
     deconnect = (Button)findViewById(R.id.deconnect); 
     deconnect.setOnClickListener(this); 
     forwardArrow = (ImageView)findViewById(R.id.forward_arrow); 
     forwardArrow.setOnClickListener(this); 
     backArrow = (ImageView)findViewById(R.id.back_arrow); 
     backArrow.setOnClickListener(this); 
     rightArrow = (ImageView)findViewById(R.id.right_arrow); 
     rightArrow.setOnClickListener(this); 
     leftArrow = (ImageView)findViewById(R.id.left_arrow); 
     leftArrow.setOnClickListener(this); 
     stop = (ImageView)findViewById(R.id.stop); 
     stop.setOnClickListener(this); 
     topleftArrow = (ImageView)findViewById(R.id.topleft_arrow); 
     topleftArrow.setOnClickListener(this); 
     toprightArrow = (ImageView)findViewById(R.id.topright_arrow); 
     toprightArrow.setOnClickListener(this); 
     backrightArrow = (ImageView)findViewById(R.id.backright_arrow); 
     backrightArrow.setOnClickListener(this); 
     backleftArrow = (ImageView)findViewById(R.id.backleft_arrow); 
     backrightArrow.setOnClickListener(this); 
    } 
    @Override 

    public void onResume() { 
     super.onResume(); 
     mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); 
     if (mBluetoothAdapter == null) { 
      Log.v(TAG, "Device does not support Bluetooth"); 
     } 
     else{ 
      if (!mBluetoothAdapter.isEnabled()){ 

       Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); 
       startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT); 
      } 
      else{ 
       bt = new BtInterface(handlerStatus, handler); 
      } 
     } 
    } 
    protected void onActivityResult(int requestCode, int resultCode, Intent moreData){ 
     if (requestCode == REQUEST_ENABLE_BT){ 
      if (resultCode == Activity.RESULT_OK){ 
       bt = new BtInterface(handlerStatus, handler); 
      } 
      else if (resultCode == Activity.RESULT_CANCELED) 
       Log.v(TAG, "BT pas active"); 
      else 
       Log.v(TAG, "code n'est pas valide"); 
     } 
     else{ 
      Log.v(TAG, "code n'est pas reconnu"); 
     } 
    } 
    @Override 
    public void onClick(View v) { 
     if(v == connect) { 
      addToLog("Appareillage en cours"); 
      bt.connect(); 
     } 
     else if(v == deconnect) { 
      addToLog("connexion en cours"); 
      bt.close(); 
     } 
     else if(v == forwardArrow) { 
      bt.sendData("F"); 
     } 
     else if(v == backArrow) { 
      bt.sendData("B"); 
     } 
     else if(v == rightArrow) { 
      bt.sendData("R"); 
     } 
     else if(v == leftArrow) { 
      bt.sendData("L"); 
     } 
     else if(v == topleftArrow){ 
      bt.sendData("I"); 
     } 
     else if(v == toprightArrow){`` 
      bt.sendData("J"); 
     } 
     else if(v == backleftArrow){ 
      bt.sendData("G"); 
     } 
     else if(v ==backrightArrow){ 
      bt.sendData("H"); 
     } 
     else if(v == stop) { 
      bt.sendData("S"); 
     }

錯誤日誌：

在那之後，我得到了一些錯誤，如：

"Error:(156, 10) error: reached end of file while parsing"

或

"Error:Execution failed for task ':app:compileDebugJavaWithJavac'."

所以現在我不現在如何解決這個問題。

來源

2017-02-22 Eddy RKO

請向我們展示確切的錯誤消息以及哪條chuffed導致它。 –

你的代碼最後缺少一些花括號。我建議你學習一些Java基礎知識，並從一個更簡單的應用程序開始。 –

我想同樣的事情，但我不知道我可以加上這些花括號 –

如果這是你的完整代碼，那麼你的onClick方法沒有結束大括號，並且你的主類不是以大括號結束。

所以在代碼末尾添加兩個結束花括號

來源

2017-02-22 13:47:51

上創建應用程序

回答

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