Android studio array generation

Question

Hello I have a program which creates a random string every 3 seconds After generating string I want to save it and show all strings in a listview Thanks for any help

Community · Accepted Answer · 2017-05-23 12:34:09Z

1

If you want to save it permanently you should read about SQLiteDatabases in Android.

If it can be deleted after you app closes you can just store it in a member variable. See here for some hints: How to fill a ListView with a string-array?

edited May 23, 2017 at 12:34

CommunityBot

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answered Apr 24, 2017 at 16:02

alex

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Sravan Sriram · Accepted Answer · 2017-04-24 16:05:43Z

0

create ArrayList

        ArrayList<String> itemList = new ArrayList<>(Arrays.asList(subject));

then Add the String to ArrayList

        itemList.add("your String");

use the below code to show them as list

    adapter = new ArrayAdapter<>(this, simple_list_item_1, itemList);
    ListView listV = (ListView) findViewById(R.id.list1);
    listV.setAdapter(adapter);

answered Apr 24, 2017 at 16:05

Sravan Sriram

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Comments

Ilya Gazman · Accepted Answer · 2017-04-24 16:33:06Z

You got planty of storage options when working with Android.

Android provides several options for you to save persistent application data. The solution you choose depends on your specific needs, such as whether the data should be private to your application or accessible to other applications (and the user) and how much space your data requires.

Your data storage options are the following:

Shared Preferences Store private primitive data in key-value pairs. Internal Storage Store private data on the device memory. External Storage Store public data on the shared external storage. SQLite Databases Store structured data in a private database. Network Connection Store data on the web with your own network server.

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