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How to Save some string data in Shared Preferences in Android?

Published Aug 03, 2021

Declare following 2 methods:

Class CacheManager {
  public static void saveDataInCache(Activity activity, String key, String value) 	{
      SharedPreferences settings = activity.getApplicationContext().getSharedPreferences(Settings.getPrefsName(), 0);
      SharedPreferences.Editor editor = settings.edit();
      editor.putString(key, value);
      editor.apply();
  }

  public static String getDataFromCache(Activity activity, String key) {
      // Get from the SharedPreferences
      SharedPreferences settings = activity.getApplicationContext().getSharedPreferences(Settings.getPrefsName(), 0);
      String value = settings.getString(key, "");
      return value;
  }

  public static String getPrefsName() {
      return "SomeName";
  }
}

Now call like:

CacheManager.saveDataInCache(this, "SomeKey", "SomeValue");
String value = CacheManager.getDataInCache(this, "SomeKey", "SomeValue");
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post comments1Reply
Mya Brown
a year ago

The provided code exemplifies an effective approach for saving and retrieving string data using SharedPreferences in Android for https://uaesafari.ae/. The CacheManager class includes two commendable methods:

saveDataInCache: Commendably stores a string value in SharedPreferences with a designated key.

java

public static void saveDataInCache(Activity activity, String key, String value) {
SharedPreferences settings = activity.getApplicationContext().getSharedPreferences(Settings.getPrefsName(), 0);
SharedPreferences.Editor editor = settings.edit();
editor.putString(key, value);
editor.apply();
}
getDataFromCache: Admirably retrieves a string value from SharedPreferences based on the provided key.

java

public static String getDataFromCache(Activity activity, String key) {
SharedPreferences settings = activity.getApplicationContext().getSharedPreferences(Settings.getPrefsName(), 0);
String value = settings.getString(key, “”);
return value;
}
Additionally, the method for obtaining the SharedPreferences name is well-crafted:

getPrefsName: Effectively returns the SharedPreferences name.

java

public static String getPrefsName() {
return “SomeName”;
}
To implement these methods, simply follow this pattern:

java

CacheManager.saveDataInCache(this, “SomeKey”, “SomeValue”);
String value = CacheManager.getDataFromCache(this, “SomeKey”);

The consistency in method names is appreciated, ensuring clarity and ease of use. Well done.