CODEWITHSUNDEEP
javaandroidstringsettext
user3247335
user3247335

Reputation: 163

Storing a string into a permenant variable issue

I'am trying to store a string from a variable (NumberString) to another variable (PermenantString) When the string is entered in to PermenantString, it should be stored permenantly in that variable, until the app is deleted or i specifically create a button to clear that PermenantString variable.

MainAvtivity

public class MainActivity extends Activity {

    public final String PermenantString= "";

verified.class

    public void onCreate(Bundle savedInstanceState)

     {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.verified);

        Button VerifyCompleteButton = (Button) findViewById(R.id.VerifyCompleteButton);

        VerifyCompleteButton.setOnClickListener(new View.OnClickListener()

        {
           public void onClick(View view) 
           {    

             String NumberString;
             String PermenantString;
             //TextView NUMView;

             TextView NUMView = (TextView) findViewById(R.id.NUMView);

             Bundle bundle = getIntent().getExtras();

             NumberString= bundle.getString("NumberString");
             PermenantString = bundle.getString("PermenantString");


            PermenantString= NumberString.toString();
             //set String PermenantString= ""; permenantly

            NUMView.setText(PermenantString);
             //
           } 



           });

Upvotes: 1

Views: 52

Answers (2)

Raghunandan
Raghunandan

Reputation: 133560

You should use preferences or sqlite to store the data. Check the storage options @

http://developer.android.com/guide/topics/data/data-storage.html

Example:

public static final String PREFS_NAME = "MyPrefsFile";

Then

SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
SharedPreferences.Editor editor = settings.edit();
editor.putString("key", stringvalue);
editor.commit();

Then to get

SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
String value = settings.getString("key","defaultstring");

Upvotes: 2

Code-Apprentice
Code-Apprentice

Reputation: 83527

Note that variables are stored in volatile RAM memory. By volatile, I mean that the value is stored only as long as your app is running. This is the very opposite of the permanence that you seem to want.

In order to save a variable that will persist after your app is destroyed, you must use some storage mechanism such as SharedPreferences or a SQLite database. For more information, you should read Storage Options in the Android Developer Guides.

Upvotes: 1

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