的onActivityResult()和:未能交付结果resultinfo谁= NULL请求= 1的结果= -1数据=意图(有临时演员)结果、意图、演员、数据

2023-09-06 14:32:40 作者:别在让她哭泣

我得在一个类中这个方法填充数据的意图,然后将它传递回启动该法的活动。在这里,我使用的意图,该项目中的onActivityResult添加到我的数据库()

但正如标题所示,我得到一个失败的结果提供resultinfo的错误。

任何人都可以明白为什么我得到这个错误?

我的继承人code的重要组成部分:

从类1,接收目标:

  @覆盖保护无效的onActivityResult(INT REQ code,INT资源$ C ​​$ C,意图数据){    super.onActivityResult(REQ code,水库code,数据);    如果(REQ code == ENTER_DATA_REQUEST_ code和;&安培; RES code == RESULT_OK){        hkDBhelper.addItem(data.getExtras()。的getString(tag_grocery_foodItem),                            data.getExtras()。的getString(tag_grocery_weight),                            data.getExtras()。的getString(tag_grocery_price),                            data.getExtras()。的getString(tag_grocery_brand),                            。data.getExtras()的getString(tag_grocery_category));        hkCursorA.changeCursor(hkDBhelper.listAll());    }} 

编辑:补充说:

  @覆盖公共布尔onOptionsItemSelected(菜单项项){    INT ID = item.getItemId();    如果(ID == R.id.addItem){        startActivityForResult(新意图(这一点,AddFood.class),ENTER_DATA_REQUEST_ code);        返回true;    }    返回super.onOptionsItemSelected(项目);} 

和2级,送INTNET:

 公共无效的addItem(){    。setFood = itemFood.getText()的toString();    。setWeight = itemWeight.getText()的toString();    。setPrice = itemPrice.getText()的toString();    。setBrand = itemBrand.getText()的toString();    。setCategory = catagorySpinner.getSelectedItem()的toString();    如果(setFood.length()= 0&放大器;!&放大器; setWeight.length()= 0&放大器;!&放大器;!setPrice.length()= 0            &功放;&安培; setBrand.length()= 0&安培;!&安培; setCategory.length()!= 0){        意向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);        完();    }} 
森林 第四段 结局前的准备

和继承人一些来自logcat的行:

  9月10日至29日:28:23.569:E / AndroidRuntime(32565):了java.lang.RuntimeException:失败交付结果ResultInfo {谁= NULL,请求= 1,结果= -1,数据= {意向CMP = com.example.s188094_mappe3 / .AddFood(有临时演员)}}到活动{com.example.s188094_mappe3 / com.example.s188094_mappe3.MainActivity}:显示java.lang.NullPointerException 

解决方案

试试这个办法,希望这将帮助你解决你的问题。

有是双向的发送/从另一个activty获取数据/

1.新增数据的意图。

如何把:

 意图newIntent =新意图();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);的setResult(RESULT_OK,newIntent);完(); 

如何获得:

 如果(REQ code == ENTER_DATA_REQUEST_ code和;&安培; RES code == 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.增加数据捆绑,并添加束意图。

如何把:

 意图newIntent =新意图();束束=新包();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(包);的setResult(RESULT_OK,newIntent);完(); 

如何获得:

 如果(REQ code == ENTER_DATA_REQUEST_ code和;&安培; RES code == RESULT_OK){   hkDBhelper.addItem(data.getExtras()。的getString(tag_grocery_foodItem),   data.getExtras()。的getString(tag_grocery_weight),   data.getExtras()。的getString(tag_grocery_price),   data.getExtras()。的getString(tag_grocery_brand),   。data.getExtras()的getString(tag_grocery_category));   hkCursorA.changeCursor(hkDBhelper.listAll());} 

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

解决方案

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());
}

 
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