Reputation: 25
I am using a parcelable object to pass through an intent. My object looks like this
enter code here
public class Recipe implements Parcelable{
private List recipe = null;
private List ingredients = null;
private String preparation;
public Recipe(List<String> recipe, List<String> ingredients,
String preparation) {
this.recipe = recipe;
this.ingredients = ingredients;
this.preparation = preparation;
}
public Recipe(Parcel source) {
source.readStringList(recipe);
source.readStringList(ingredients);
this.preparation = source.readString();
}
public List<String> getRecipe() {
return recipe;
}
public List<String> getIngredients() {
return ingredients;
}
public String getPreparation() {
return preparation;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeStringList(recipe);
dest.writeStringList(ingredients);
dest.writeString(preparation);
}
public static final Parcelable.Creator<Recipe> CREATOR = new Creator<Recipe>() {
@Override
public Recipe[] newArray(int size) {
return new Recipe[size];
}
@Override
public Recipe createFromParcel(Parcel source) {
return new Recipe(source);
}
};}
I put the data in to Intent like this
enter code here @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_recipe);
dbMan = new XmlManager();
try {
db = dbMan.parse();
} catch (XmlPullParserException e) {
System.err.println("XmlPullParserException " + e.getMessage());
e.printStackTrace();
} catch (IOException e) {
System.err.println("IO Excepion " + e.getMessage());
e.printStackTrace();
}
// get the listview
expListView = (ExpandableListView) findViewById(R.id.expandableListView1);
// preparing list data
prepareListData();
listAdapter = new MyBaseExpandableListAdapter(this, listDataHeader,
listDataChild);
// setting list adapter
expListView.setAdapter(listAdapter);
// Listview on child click listener
expListView.setOnChildClickListener(new OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
sendChildList = listDataChild
.get(listDataHeader.get(groupPosition))
.get(childPosition).toString();
sendRecipe = dbMan.getRecipyByCriteria(db, sendChildList);
Toast.makeText(getApplicationContext(),
"sendet" + sendChildList, Toast.LENGTH_LONG).show();
Intent in = new Intent(getApplicationContext(),
ShowRecipe.class);
in.putExtra("sendRecipe", sendRecipe);
startActivity(in);
return false;
}
});
}
Well i debug this Part of code and i know the sendRecipe Object was instantiates and data is correct. so i put this thing in intent and send it to next Activity
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_show_recipe);
findeRecipe = (Recipe)getIntent().getParcelableExtra("sendRecipe");
At this place the Intent receives NULL. It's funny thing because when I send a String or int its receive correctly. I sit here scened day an debug this thing read questions about Parcelable do everything right i thing and nothing works correctly.
Upvotes: 1
Views: 660
Reputation: 8861
Probably the problem is that you use application context: Intent in = new Intent(getApplicationContext()...
Try to pass activity instead.
Upvotes: 1