CODEWITHSUNDEEP
androidandroid-widget
user1284151
user1284151

Reputation: 885

Android Preferences for widgets

Assume, widget uses login and password to retrieve some data. I store login and pws in sharedPreferences.

Everything works fine as long as I have 1 widget. When I add the second widget login and pwd in sharedPreferences replaced for both widgets.

What is the typical solution for this problem>

Upvotes: 0

Views: 137

Answers (1)

Egor
Egor

Reputation: 40203

In a usual case, the unique identifier for an AppWidget is an appWidgetId. So you can organize your preferences this way.

Assume you have a key for storing a login:

public static final String PREFS_LOGIN = "com.example.prefs.LOGIN";

And two methods to store the value and to retrieve it:

public void setLogin(String login) {
    prefs.edit().putString(PREFS_LOGIN, login).commit();
}

public String getLogin() {
    return prefs.getString(PREFS_LOGIN, "");
}

To ensure that preferences store login values for each appWidgetId and retrieve the correct one you can pass appWidgetId to these methods:

public void setLogin(String login, int appWidgetId) {
    prefs.edit().putString(PREFS_LOGIN + appWidgetId, login).commit();
}

public String getLogin(int appWidgetId) {
    return prefs.getString(PREFS_LOGIN + appWidgetId, "");
}

Hope this helps.

Upvotes: 1

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