onActivityResult() and: failure delivering result resultinfo who=null request=1 result=-1 data=intent (has extras)

问题:

I've got this method in one class filling an Intent with data and then pass it back to the activity that started the method. Here I am using the intent to add the item to my database in onActivityResult()

But as the title indicates I'm getting an "failure delivering result resultinfo" error.

Can anyone see why I get this error?

Heres the essential part of my code:

from class 1, receiving the Intent :

    @Override protected void onActivityResult(int reqCode, int resCode, Intent data){     super.onActivityResult(reqCode, resCode, data);      if(reqCode == ENTER_DATA_REQUEST_CODE && resCode == RESULT_OK){         hkDBhelper.addItem(data.getExtras().getString("tag_grocery_foodItem"),                             data.getExtras().getString("tag_grocery_weight"),                             data.getExtras().getString("tag_grocery_price"),                             data.getExtras().getString("tag_grocery_brand"),                             data.getExtras().getString("tag_grocery_category"));         hkCursorA.changeCursor(hkDBhelper.listAll());     } } 

Edit: added:

    @Override public boolean onOptionsItemSelected(MenuItem item) {     int id = item.getItemId();     if (id == R.id.addItem) {         startActivityForResult(new Intent(this, AddFood.class), ENTER_DATA_REQUEST_CODE);         return true;     }     return super.onOptionsItemSelected(item); } 

And class 2, sending the Intnet:

    public void addItem(){     setFood = itemFood.getText().toString();     setWeight = itemWeight.getText().toString();     setPrice = itemPrice.getText().toString();     setBrand = itemBrand.getText().toString();     setCategory = catagorySpinner.getSelectedItem().toString();       if(setFood.length() != 0 && setWeight.length() != 0 && setPrice.length() != 0             && setBrand.length() != 0 && setCategory.length() != 0){         Intent newIntent = getIntent();         newIntent.putExtra("tag_grocery_foodItem", setFood);         newIntent.putExtra("tag_grocery_weight", setWeight);         newIntent.putExtra("tag_grocery_price", setPrice);         newIntent.putExtra("tag_grocery_brand", setBrand);         newIntent.putExtra("tag_grocery_category", setCategory);          this.setResult(RESULT_OK, newIntent);         finish();     } } 

And heres some lines from logcat:

10-29 09:28:23.569: E/AndroidRuntime(32565): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { cmp=com.example.s188094_mappe3/.AddFood (has extras) }} to activity {com.example.s188094_mappe3/com.example.s188094_mappe3.MainActivity}: java.lang.NullPointerException 

回答1:

Try this way,hope this will help you to solve your problem.

There is two way send/get data to/from another activty

1.add data to intent.

how to put :

Intent newIntent = new Intent(); newIntent.putExtra("tag_grocery_foodItem", setFood); newIntent.putExtra("tag_grocery_weight", setWeight); newIntent.putExtra("tag_grocery_price", setPrice); newIntent.putExtra("tag_grocery_brand", setBrand); newIntent.putExtra("tag_grocery_category", setCategory); setResult(RESULT_OK, newIntent); finish(); 

how to get :

if(reqCode == ENTER_DATA_REQUEST_CODE && resCode == RESULT_OK){    hkDBhelper.addItem(data.getStringExtra("tag_grocery_foodItem"),    data.getStringExtra("tag_grocery_weight"),    data.getStringExtra("tag_grocery_price"),    data.getStringExtra("tag_grocery_brand"),    data.getStringExtra("tag_grocery_category"));    hkCursorA.changeCursor(hkDBhelper.listAll()); } 

2.Add data to bundle and add bundle to intent.

how to put :

Intent newIntent = new Intent(); Bundle bundle = new Bundle(); bundle.putString("tag_grocery_foodItem", setFood); bundle.putString("tag_grocery_weight", setWeight); bundle.putString("tag_grocery_price", setPrice); bundle.putString("tag_grocery_brand", setBrand); bundle.putString("tag_grocery_category", setCategory); newIntent.putExtras(bundle); setResult(RESULT_OK, newIntent); finish(); 

how to get :

if(reqCode == ENTER_DATA_REQUEST_CODE && resCode == RESULT_OK){    hkDBhelper.addItem(data.getExtras().getString("tag_grocery_foodItem"),    data.getExtras().getString("tag_grocery_weight"),    data.getExtras().getString("tag_grocery_price"),    data.getExtras().getString("tag_grocery_brand"),    data.getExtras().getString("tag_grocery_category"));    hkCursorA.changeCursor(hkDBhelper.listAll()); } 

回答2:

Your problem lies here:

activity {com.example.s188094_mappe3/com.example.s188094_mappe3.MainActivity} 

Your package appears twice. It tries to open

com.example.s188094_mappe3/com.example.s188094_mappe3.MainActivity.class  

but that doesn't exist. Try cleaning your project, reopen Eclipse, all the good stuff.

And before you say anything i don't have enough reputation to comment.

If anyone has a better solution to this please replay.

Cheers!

文章来源: onActivityResult() and: failure delivering result resultinfo who=null request=1 result=-1 data=intent (has extras)