@Override
public boolean importValue(JSONObject json, String key, SharedPreferences.Editor editor) {
final Preference preference = supportedMap.get(key);
if (preference == null || !preference.exportable()) return false;
switch (preference.type()) {
case BOOLEAN:
editor.putBoolean(key, json.optBoolean(key, preference.defaultBoolean()));
break;
case INT:
editor.putInt(key, json.optInt(key, preference.defaultInt()));
break;
case LONG:
editor.putLong(key, json.optLong(key, preference.defaultLong()));
break;
case FLOAT:
editor.putFloat(key, (float) json.optDouble(key, preference.defaultFloat()));
break;
case STRING:
editor.putString(key, json.optString(key, preference.defaultString()));
break;
default:
break;
}
return true;
}
@Override
public boolean exportValue(JSONObject json, String key, SharedPreferences preferences) {
final Preference preference = supportedMap.get(key);
if (preference == null || !preference.exportable()) return false;
try {
switch (preference.type()) {
case BOOLEAN:
json.put(key, preferences.getBoolean(key, preference.defaultBoolean()));
break;
case INT:
json.put(key, preferences.getInt(key, preference.defaultInt()));
break;
case LONG:
json.put(key, preferences.getLong(key, preference.defaultLong()));
break;
case FLOAT:
json.put(key, preferences.getFloat(key, preference.defaultFloat()));
break;
case STRING:
json.put(key, preferences.getString(key, preference.defaultString()));
break;
default:
break;
}
} catch (JSONException e) {
return false;
}
return true;
}
public static HashMap<String, Preference> getSupportedPreferencesMap(Class cls) {
final Field[] fields = cls.getDeclaredFields();
final HashMap<String, Preference> supportedPrefsMap = new HashMap<>();
for (final Field field : fields) {
final Preference annotation = field.getAnnotation(Preference.class);
if (Modifier.isStatic(field.getModifiers())
&& CompareUtils.classEquals(field.getType(), String.class)
&& annotation != null
&& annotation.exportable()
&& annotation.type() != INVALID) {
try {
supportedPrefsMap.put((String) field.get(null), annotation);
} catch (final IllegalAccessException | IllegalArgumentException e) {
Log.w(LOGTAG, e);
}
}
}
return supportedPrefsMap;
}