如何解决像java.lang.Throwable：setStateLocked这样的错误？

我正在开发一个应用程序.在其中我使用ListvIEw.当我点击列表项时,它应该转到下一个活动,即ProfileActivity2.java.它工作正常,但在这个ProfileActivty2底部有一个按钮,当我点击这个按钮时,我的应用程序崩溃并停在ListvIEw页面中.并在ListvIEw布局文件中显示错误java.lang.Throwable：setStateLocked,即setContentVIEw.我该如何解决这个错误？

//ProfileActivity2.java    public class ProfileActivity2 extends AppCompatActivity {        //TextvIEw to show currently logged in user        private TextVIEw textVIEw;        private boolean loggedIn = false;        button btn;        EditText edname,edaddress;        TextVIEw tvsname,tvsprice;        NumberPicker numberPicker;        TextVIEw textvIEw1,textvIEw2;        Integer temp;        String pname,paddress,email,sname,sprice;        @OverrIDe        protected voID onCreate(Bundle savedInstanceState){            super.onCreate(savedInstanceState);            setContentVIEw(R.layout.activity_profile1);            //Initializing textvIEw            textVIEw = (TextVIEw) findVIEwByID(R.ID.textVIEw);            edname=(EditText)findVIEwByID(R.ID.ed_pname);            edaddress=(EditText)findVIEwByID(R.ID.ed_add);            tvsname=(TextVIEw)findVIEwByID(R.ID.textVIEw_name);            tvsprice=(TextVIEw)findVIEwByID(R.ID.textVIEw2_price);            btn=(button)findVIEwByID(R.ID.button);            Intent i = getIntent();            // getting attached intent data            String name = i.getStringExtra("sname");            // displaying selected product name            tvsname.setText(name);            String price = i.getStringExtra("sprice");            // displaying selected product name            tvsprice.setText(price);            numberPicker = (NumberPicker)findVIEwByID(R.ID.numberpicker);            numberPicker.setMinValue(0);            numberPicker.setMaxValue(4);            final int foo = Integer.parseInt(price);            textvIEw1 = (TextVIEw)findVIEwByID(R.ID.textVIEw1_amount);            textvIEw2 = (TextVIEw)findVIEwByID(R.ID.textVIEw_seats);            //   numberPicker.setValue(foo);            numberPicker.setonValueChangedListener(new NumberPicker.OnValuechangelistener() {                @OverrIDe                public voID onValueChange(NumberPicker picker,int oldVal,int newVal) {                    temp = newVal * foo;                //    textvIEw1.setText("Selected Amount : " + temp);                //    textvIEw2.setText("Selected Seats : " + newVal);                      textvIEw1.setText(String.valueOf(temp));                      textvIEw2.setText(String.valueOf(newVal));              //      textvIEw1.setText(temp);               //     textvIEw2.setText(newVal);                }            });            //Fetching email from shared preferences            btn.setonClickListener(new VIEw.OnClickListener() {                @OverrIDe                public voID onClick(VIEw v) {                //    submitForm();                //    Intent intent = new Intent(ProfileActivity2.this,SpinnerActivity.class);                //    startActivity(intent);                  SharedPreferences sharedPreferences = getSharedPreferences(Config.SHARED_PREF_name,Context.MODE_PRIVATE);                    loggedIn = sharedPreferences.getBoolean(Config.LOGGEDIN_SHARED_PREF,false);                    String email = sharedPreferences.getString(Config.EMAIL_SHARED_PREF,"Not Available");                    textVIEw.setText(email);                    if(loggedIn){                        submitForm();                        Intent intent = new Intent(ProfileActivity2.this,SpinnerActivity.class);                        startActivity(intent);                    }                }            });        }        private voID submitForm() {            // submit your form here. your form is valID            //Toast.makeText(this,"submitting form...",Toast.LENGTH_LONG).show();            String pname = edname.getText().toString();            String paddress = edaddress.getText().toString();            String sname = textvIEw1.getText().toString();         //    String sname= String.valueOf(textvIEw1.getText().toString());            String sprice= textvIEw2.getText().toString();         //   String sprice=  String.valueOf(textvIEw2.getText().toString());            String email= textVIEw.getText().toString();            Toast.makeText(this,"Signing up...",Toast.LENGTH_SHORT).show();            new SignupActivity(this).execute(pname,sprice,email);        }    }    //SignupActivity    public class SignupActivity extends AsyncTask

context.startActivity(intent);