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POAndroid: Set items inside View from Adapter get NullPointerException
 

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  1. POAndroid: Set items inside View from Adapter get NullPointerException
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    <p>I got a Layout and when press a Button called "Add", it add one inflated view inside this Layout and start a method to set all items inside this View (Buttons, ListView..etc). So, I can make a list, inside the Layout, of my inflated Views and save it on Database.</p> <p>My problem is, when i load the data from database, set this data on an ArrayAdapter and insert it into the Layout, when i call the method to set the items, i get a "NullPointerException"</p> <p>This is the Activity:</p> <pre><code> public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.activity_record_tab); user = new UserBean(); username = ( EditText ) findViewById( R.id.et_username ); data = ( EditText ) findViewById( R.id.et_data ); formatDateTime = DateFormat.getDateTimeInstance(); dateTime = Calendar.getInstance(); //this is the layout listRecord = ( LinearLayout ) findViewById( R.id.listRecord ); initInsertButton(); //this is an Intent to get data from other activity and where i call the adapter to add views automatically Bundle extras = getIntent().getExtras(); if (extras != null) { user_id = extras.getInt("id"); data_ = extras.getString("data"); accessObjectUser = new UserDAO( getApplicationContext() ); UserBean user = accessObjectUser.oneDataById(user_id); username.setText(user.getNome()+" "+user.getSobrenome()); data.setText(data_); accessObjectRec = new RecordDAO ( getApplicationContext() ); recs = accessObjectRec.recDataByUserId(user_id, data_); adapterRec = new RecordTagAdapter( getApplicationContext(), R.layout.record_tag, rec ); //here i set the views from adapter into layout for (int i = 0; i &lt; adapterRec.getCount(); i++) { View item = adapterRec.getView(i, null, null); listRecord.addView(item); } //here the button to add the view manually private void initInsertButton() { insertRecord = ( Button ) findViewById( R.id.buttonInsertRecord ); insertRecord.setOnClickListener( new OnClickListener(){ public void onClick(View v) { LayoutInflater inflate = ( LayoutInflater ) getSystemService( Context.LAYOUT_INFLATER_SERVICE ); view = inflate.inflate( R.layout.record_tag, null ); initRecTag(); listRecord.addView( view ); } } ); } //setting all items inside view added private void initRecTag(){ final TextView f_id = ( TextView ) view.findViewById(R.id.tx_food_id); final TextView m_id = ( TextView ) view.findViewById(R.id.tx_med_id); final EditText search_box = ( EditText ) view.findViewById( R.id.food_search ); final ListView lstAlimentos = ( ListView ) view.findViewById( R.id.listView1 ); search_box.addTextChangedListener(new TextWatcher() { public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) { } public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) { // TODO Auto-generated method stub } public void afterTextChanged(Editable arg0) { } }); lstAlimentos.setOnItemClickListener( new OnItemClickListener() { public void onItemClick( AdapterView&lt;?&gt; parent, View views, int position, long id ){ ... } insertHorario = ( TextView ) view.findViewById(R.id.tx_timer); insertHorario.setOnClickListener( new OnClickListener() { public void onClick(View v) { timeSet(); } }); deleteRecord = ( Button ) view.findViewById( R.id.bt_excludeRec ); deleteRecord.setOnClickListener( new OnClickListener() { View viewTemp = view; public void onClick(View v) { listRecord.removeView(viewTemp); } } ); } public void dataSet(){ data.setOnClickListener( new OnClickListener() { public void onClick(View v) { showDialog(DATE_DIALOG_ID); final Calendar cal = Calendar.getInstance(); cal.getTime(); pYear = cal.get(Calendar.YEAR); pMonth = cal.get(Calendar.MONTH); pDay = cal.get(Calendar.DAY_OF_MONTH); } }); } private DatePickerDialog.OnDateSetListener pDateSetListener = new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { pYear = year; pMonth = monthOfYear; pDay = dayOfMonth; updateDisplay(); } }; public void updateDisplay() { data.setText( new StringBuilder() // Month is 0 based so add 1 .append(pDay).append("-") .append(pMonth + 1).append("-") .append(pYear).append(" ")); } public void timeSet(){ new TimePickerDialog( RecordTabActivity.this, t, dateTime.get(Calendar.HOUR_OF_DAY), dateTime.get(Calendar.MINUTE), true).show(); } TimePickerDialog.OnTimeSetListener t=new TimePickerDialog.OnTimeSetListener() { public void onTimeSet(TimePicker view, int hourOfDay, int minute) { int hour = hourOfDay; int minut = minute; updateHour(hour, minut); } }; private void updateHour(int hour, int minute) { insertHorario.setText( hour+":"+minute ); } private void updateData(int year, int month, int day) { data.setText(day+"-"+month+"-"+day); } </code></pre> <p>logcat:</p> <pre><code>09-10 19:34:08.711: E/AndroidRuntime(23643): FATAL EXCEPTION: main 09-10 19:34:08.711: E/AndroidRuntime(23643): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.centeias.nutrirecord/com.centeias.nutrirecord.RecordTabActivity}: java.lang.NullPointerException 09-10 19:34:08.711: E/AndroidRuntime(23643): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1817) 09-10 19:34:08.711: E/AndroidRuntime(23643): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1833) 09-10 19:34:08.711: E/AndroidRuntime(23643): at android.app.ActivityThread.access$500(ActivityThread.java:124) 09-10 19:34:08.711: E/AndroidRuntime(23643): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1026) 09-10 19:34:08.711: E/AndroidRuntime(23643): at android.os.Handler.dispatchMessage(Handler.java:99) 09-10 19:34:08.711: E/AndroidRuntime(23643): at android.os.Looper.loop(Looper.java:132) 09-10 19:34:08.711: E/AndroidRuntime(23643): at android.app.ActivityThread.main(ActivityThread.java:4134) 09-10 19:34:08.711: E/AndroidRuntime(23643): at java.lang.reflect.Method.invokeNative(Native Method) 09-10 19:34:08.711: E/AndroidRuntime(23643): at java.lang.reflect.Method.invoke(Method.java:491) 09-10 19:34:08.711: E/AndroidRuntime(23643): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841) 09-10 19:34:08.711: E/AndroidRuntime(23643): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599) 09-10 19:34:08.711: E/AndroidRuntime(23643): at dalvik.system.NativeStart.main(Native Method) 09-10 19:34:08.711: E/AndroidRuntime(23643): Caused by: java.lang.NullPointerException 09-10 19:34:08.711: E/AndroidRuntime(23643): at com.centeias.nutrirecord.RecordTabActivity.initRecTag(RecordTabActivity.java:358) 09-10 19:34:08.711: E/AndroidRuntime(23643): at com.centeias.nutrirecord.RecordTabActivity.onCreate(RecordTabActivity.java:254) 09-10 19:34:08.711: E/AndroidRuntime(23643): at android.app.Activity.performCreate(Activity.java:4411) 09-10 19:34:08.711: E/AndroidRuntime(23643): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1048) 09-10 19:34:08.711: E/AndroidRuntime(23643): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1781) 09-10 19:34:08.711: E/AndroidRuntime(23643): ... 11 more </code></pre>
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    1. USMarcus S.F.
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    1. COCan you post the logcat so we know where the NPE is?
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      1. POAndroid: Set items inside View from Adapter get NullPointerException
      1. UScodeMagic
    2. COI'd tried to inflate the laytou before or get it from Adapter, and still returning null
      singulars
      1. POAndroid: Set items inside View from Adapter get NullPointerException
      1. USMarcus S.F.
    3. COWhat is 358 of `RecordTabActivity`?
      singulars
      1. POAndroid: Set items inside View from Adapter get NullPointerException
      1. UScodeMagic
 

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