CODEWITHSUNDEEP
androidarraylisthashmap
start android
start android

Reputation: 323

pass the arraylist with hashmap between activities in android?

I want to send the arraylist with hashmap between activities but is give me null arraylist with hashmap.

Sender Activity

ArrayList<HashMap<String,String>> childgame = new ArrayList<HashMap<String,String>>(); 
Intent ordernow= new Intent(CategoryActivity.this,OrderDetailActivity.class);
ordernow.putExtra("orderlist",childgame);                                     
startActivity(ordernow);

Receiver Activity

Intent intent = getIntent();
Bundle bundle =intent.getExtras();
bundle.getSerializable("orderlist");

Upvotes: 1

Views: 5015

Answers (2)

Raghunandan
Raghunandan

Reputation: 133560

Use putExtra(String, Serializable) to pass the value in an Intent and getSerializableExtra(String) method to retrieve the data.

ArrayList implements Serializable

http://docs.oracle.com/javase/7/docs/api/java/util/ArrayList.html

You already have this

ordernow.putExtra("orderlist",childgame);

To get the list

Intent intent = getIntent();
ArrayList<HashMap<String,String>> list = (ArrayList<HashMap<String, String>>) intent.getSerializableExtra("orderList");

public Serializable getSerializableExtra (String name)

Added in API level 1

Retrieve extended data from the intent.

Parameters

name The name of the desired item.

Returns

the value of an item that previously added with putExtra() or null if no Serializable value was found.

Upvotes: 6

Tarsem Singh
Tarsem Singh

Reputation: 14199

try by using getIntent().getSerializableExtra("orderlist")

on Receiver side use : same type of ArrayList to receive data !

ArrayList<HashMap<String, String>> arl = (ArrayList<HashMap<String, String>>) getIntent().getSerializableExtra("orderlist");

Upvotes: 1

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