Hi, I want to create an app that requires reading/updating data. I wish to know which method suits the best i.e. store in phone, external storage or using SQLite. Basically, I need to store 3 different values which the value will be update regularly. I am thinking of creating a text file consist of either 3 lines or 1 line comma so that I can use array to split. Example > Data1, Data2, Data3 However, I am not sure whether is this the best practice? Please advise. Thanks
I'd say an Xml file is a bit better than just writing the values to different files.. SqlLite is a lot of overhead for three values.
I wouldn't go with the XML file, because you said you need to update the values regularly. Let me ask you a question: are you going to be storing many sets of these multiple values? Or, do you just plan to update those same 3 values regularly? If that's the case, I would use SharedPreferences because of the low amount of overhead required, and the ease of use (don't have to deal with files, etc.). Here's a quick example: Code (Text): /* A name for your preferences file */ public static final String PREFERENCES = "MyPreferences"; /* Keys used for storing/retreiving values */ public static final String KEY_AGE = "age"; public static final String KEY_SEX = "sex"; public static final String KEY_LOCATION = "location"; /* Default values */ public static final int DEFAULT_AGE = 21; public static final String DEFAULT_SEX = "Male"; public static final String DEFAULT_LOCATION = "Antartica"; protected void onCreate(Bundle state) { super.onCreate(state); ... /* Get the information */ SharedPreferences info = getSharedPreferences(PREFERENCES, 0); int age = info.getInt(KEY_AGE, DEFAULT_AGE); String sex = info.getString(KEY_SEX, DEFAULT_SEX); String location = info.getString(KEY_LOCATION, DEFAULT_LOCATION); /* Get new values for the information */ ... /* Save some new information */ SharedPreferences.Editor editor = info.edit(); editor.putInt(KEY_AGE, age); editor.putString(KEY_SEX, sex); editor.putString(KEY_LOCATION, location); editor.commit(); }
Thanks for all replies Three values might be update regularly, I think SharedPreference might do the job well, gonna research on that. Thanks Boogs
