应用程序工作正常在仿真器，将数据发送到服务器，但崩溃的设备

Question

以下为引用的代码：

的数据进入数据库在本地，我复制它在服务器上，从我的设备访问应用程序，它使用API​​级别23，这也是我的gradle文件中的目标sdk。

@Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.enter_sugarcane_details_layout); 

     final EditText etyear = (EditText) findViewById(R.id.textYear); 
     final EditText etSpecies = (EditText) findViewById(R.id.textSpecies); 
     final EditText etPlantingDate = (EditText) findViewById(R.id.textPlantingdate); 
     final EditText etPlantingArea = (EditText) findViewById(R.id.textPlantingarea); 
     final EditText etProduction = (EditText) findViewById(R.id.textProduction); 

     final EditText etExpectedAmount = (EditText) findViewById(R.id.textExpectedAmount); 
     final EditText etSabhasadpart = (EditText) findViewById(R.id.textSabhasadpart); 
     final EditText etWhere = (EditText) findViewById(R.id.textWhere); 
     final EditText etDistance = (EditText) findViewById(R.id.textDistance); 
     final EditText ettransportmode = (EditText) findViewById(R.id.texttransportmode); 
     final EditText ettransportcost = (EditText) findViewById(R.id.texttransportcost); 
     final EditText etothersupply = (EditText) findViewById(R.id.textothersupply); 

     final Button bSave = (Button) findViewById(R.id.btnSavedetails); 

     bSave.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 

       final String year = etyear.getText().toString(); 
       final String species = etSpecies.getText().toString(); 
       final String pdate = etPlantingDate.getText().toString(); 
       final int parea = Integer.parseInt(etPlantingArea.getText().toString()); 
       final int production = Integer.parseInt(etProduction.getText().toString()); 

       final int expamt = Integer.parseInt(etExpectedAmount.getText().toString()); 
       final String sabhasadpart = etSabhasadpart.getText().toString(); 
       final String where = etWhere.getText().toString(); 
       final int distance = Integer.parseInt(etDistance.getText().toString()); 
       final String transportmode = ettransportmode.getText().toString(); 
       final int transportcost = Integer.parseInt(ettransportcost.getText().toString()); 
       final String othersupply = etothersupply.getText().toString(); 

       Response.Listener<String> responseListener = new Response.Listener<String>() { 
        @Override 
        public void onResponse(String response) { 

         System.out.println(response); 
         try { 
          JSONObject jsonResponse = new JSONObject(response); 
          boolean success = jsonResponse.getBoolean("success"); 
          if (success) { 
           Intent intent = new Intent(EnterSugarcaneDetails.this, UserAreaActivity.class); 
           EnterSugarcaneDetails.this.startActivity(intent); 
          } else { 
           AlertDialog.Builder builder = new AlertDialog.Builder(EnterSugarcaneDetails.this); 
           builder.setMessage("Details were not updated") 
             .setNegativeButton("Retry", null) 
             .create() 
             .show(); 
          } 
         } catch (JSONException e) { 
          e.printStackTrace(); 
         } 
        } 
       }; 

       DetailsRequest detailsRequest = new DetailsRequest(year, species, pdate, parea, production, expamt, sabhasadpart, where, distance, transportmode, transportcost, othersupply, responseListener); 
       RequestQueue queue = Volley.newRequestQueue(EnterSugarcaneDetails.this); 
       queue.add(detailsRequest); 
      } 
     }); 
    } 
} 

Answer 1

menifest

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> 
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
<uses-permission android:name="android.permission.INTERNET"/> 

也注册

UserAreaActivity.class注册到您的menifest

yourActivity

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.enter_sugarcane_details_layout); 

    final EditText etyear = (EditText) findViewById(R.id.textYear); 
    final EditText etSpecies = (EditText) findViewById(R.id.textSpecies); 
    final EditText etPlantingDate = (EditText) findViewById(R.id.textPlantingdate); 
    final EditText etPlantingArea = (EditText) findViewById(R.id.textPlantingarea); 
    final EditText etProduction = (EditText) findViewById(R.id.textProduction); 
    final EditText etExpectedAmount = (EditText) findViewById(R.id.textExpectedAmount); 
    final EditText etSabhasadpart = (EditText) findViewById(R.id.textSabhasadpart); 
    final EditText etWhere = (EditText) findViewById(R.id.textWhere); 
    final EditText etDistance = (EditText) findViewById(R.id.textDistance); 
    final EditText ettransportmode = (EditText) findViewById(R.id.texttransportmode); 
    final EditText ettransportcost = (EditText) findViewById(R.id.texttransportcost); 
    final EditText etothersupply = (EditText) findViewById(R.id.textothersupply); 


    final Button bSave = (Button) findViewById(R.id.btnSavedetails); 
    if(isNetworkConnected) 
    { 

    bSave.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 

      final String year = etyear.getText().toString(); 
      final String species = etSpecies.getText().toString(); 
      final String pdate = etPlantingDate.getText().toString(); 
      final int parea = Integer.parseInt(etPlantingArea.getText().toString()); 
      final int production = Integer.parseInt(etProduction.getText().toString()); 

      final int expamt = Integer.parseInt(etExpectedAmount.getText().toString()); 
      final String sabhasadpart = etSabhasadpart.getText().toString(); 
      final String where = etWhere.getText().toString(); 
      final int distance = Integer.parseInt(etDistance.getText().toString()); 
      final String transportmode = ettransportmode.getText().toString(); 
      final int transportcost = Integer.parseInt(ettransportcost.getText().toString()); 
      final String othersupply = etothersupply.getText().toString(); 

      Response.Listener<String> responseListener = new Response.Listener<String>() { 
       @Override 
       public void onResponse(String response) { 

        System.out.println(response); 
        try { 
         JSONObject jsonResponse = new JSONObject(response); 
         boolean success = jsonResponse.getBoolean("success"); 
         if (success) { 
          Intent intent = new Intent(EnterSugarcaneDetails.this, UserAreaActivity.class); 
          EnterSugarcaneDetails.this.startActivity(intent); 
         } else { 
          AlertDialog.Builder builder = new AlertDialog.Builder(EnterSugarcaneDetails.this); 
          builder.setMessage("Details were not updated") 
            .setNegativeButton("Retry", null) 
            .create() 
            .show(); 
         } 
        } catch (JSONException e) { 
         e.printStackTrace(); 
        } 
       } 
      }; 

      DetailsRequest detailsRequest = new DetailsRequest(year, species, pdate, parea, production, expamt, sabhasadpart, where, distance, transportmode, transportcost, othersupply, responseListener); 
      RequestQueue queue = Volley.newRequestQueue(EnterSugarcaneDetails.this); 
      queue.add(detailsRequest); 
     } 
    });}else{ 
    Toast.makeText(getApplicationContext(),"chec your internet connection", Toast.LENGTH_LONG).show(); 

    } 

} 

private boolean isNetworkConnected() { 
    ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); 

    return cm.getActiveNetworkInfo() != null; 
}