Nrthugu

I found answers to similar questions but none worked for me.

Q1: Saving several EditText after program closes

Q2: Save latest text from Edittext and restore it after onDestroy

In my case, we're talking about ~50 EditTexts. With question Q2 I figured how to save one single EditText but as soon as I copy the code for different EditTexts (and use different parameters) when restarting every EditText shows the same word.

public static final String LAST_TEXT1 = "";

public static final String LAST_TEXT2 = "";

public EditText myEditText1, myEditText2;



protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.myactivity);



    myEditText1= (EditText)findViewById(R.id.myEditText1);

    final SharedPreferences pref1= PreferenceManager.getDefaultSharedPreferences(this);

    myEditText1.setText(pref.getString(LAST_TEXT1, ""));

    myEditText1.addTextChangedListener(new TextWatcher() {

        @Override

        public void beforeTextChanged(CharSequence s, int start, int count, int after) {



        }



        @Override

        public void onTextChanged(CharSequence s, int start, int before, int count) {



        }



        @Override

        public void afterTextChanged(Editable s) {



            pref.edit().putString(LAST_TEXT1, s.toString()).commit();





        }

    });



    myEditText2= (EditText)findViewById(R.id.myEditText2);

    final SharedPreferences pref2= PreferenceManager.getDefaultSharedPreferences(this);

    myEditText2.setText(pref.getString(LAST_TEXT2, ""));

    myEditText2.addTextChangedListener(new TextWatcher() {

        @Override

        public void beforeTextChanged(CharSequence s, int start, int count, int after) {



        }



        @Override

        public void onTextChanged(CharSequence s, int start, int before, int count) {



        }



        @Override

        public void afterTextChanged(Editable s) {



            pref.edit().putString(LAST_TEXT2, s.toString()).commit();





        }

    });

}

Basically, this several times with all the parameters changed. (pref, myEditText,LAST_TEXT) But all the different EditTexts (like myEditText1 and myEditText2) would on the restart then show the same word.

Is there any efficient way to save all these contents?

Would there be a better way to save Strings in a table (I'm a beginner)
If there is no "efficient" way to save all these EditTexts how can I change my code so that it would save the data right?

Thanks in advance.

Based on your code, you are using same key for all EditText and that's what it's giving you back:

public static final String LAST_TEXT1 = "";

public static final String LAST_TEXT2 = "";

Here LAST_TEXT1 and LAST_TEXT2 are equals. SharedPreferences are key/value based storage option. If you want to save different values for all your editexts, use different keys. And I'd recommend, not empty Strings.

You can also use one key and store an object containing all your edittexts values structured the way you want, the way you should be able to retrieve data easily, for example using JSONArray and stringify it.

The content of EditText2 will replace the content of EditText1 in your preferences since you are using the same key.

And when you try to retrieve your content, the associated value of "" will be shown. LAST_TEXT1 and LAST_TEXT2 are just variables here. Keys are what is contained within the variable.

I hope this will help.

1.SharedPreference saves data in key-value pair. You save a data for a key and when needed, use that same key to recover the value, even if the app is closed.

In your case, you are using two variables for storing string-keys, named, LAST_TEXT1 and LAST_TEXT2. But sadly, both are carrying the same value, "" or empty string. As both keys are technically the same, you are getting the same result. Define Those two keys like this to get different results:

public static final String LAST_TEXT1 = "LAST_TEXT1";

public static final String LAST_TEXT2 = "LAST_TEXT2";

2.SharedPreference is used for simple and short key-values. If your values are longer than few words, I suggest using Sqlite Database or similar long time data persisting methods.