A SharedPreferences singleton that can be used to centralise and simplify reading and writing of SharedPerferences in your Android app. There are 2 versions, one that uses static String for Keys and an other that uses enums. Which one you use comes down to your preference, enums I feel provides better control when you have multiple programmers w…

SharedPreferencesSingletonEnumKeyTemplate.java

#if (${PACKAGE_NAME} != "")package ${PACKAGE_NAME};#end

import android.content.Context;
import android.content.SharedPreferences;

/*
 * A Singleton for managing your SharedPreferences.
 *
 * You should make sure to change the SETTINGS_NAME to what you want
 * and choose the operating made that suits your needs, the default is
 * MODE_PRIVATE.
 *
 * IMPORTANT: The class is not thread safe. It should work fine in most 
 * circumstances since the write and read operations are fast. However
 * if you call edit for bulk updates and do not commit your changes
 * there is a possibility of data loss if a background thread has modified
 * preferences at the same time.
 * 
 * Usage:
 * 
 * int sampleInt = ${NAME}.getInstance(context).getInt(Key.SAMPLE_INT);
 * ${NAME}.getInstance(context).set(Key.SAMPLE_INT, sampleInt);
 * 
 * If ${NAME}.getInstance(Context) has been called once, you can 
 * simple use ${NAME}.getInstance() to save some precious line space.
 */
public class ${NAME} {
	// TODO: CHANGE THIS TO SOMETHING MEANINGFUL
	private static final String SETTINGS_NAME = "default_settings";
	private static ${NAME} sSharedPrefs;
	private SharedPreferences mPref;
	private SharedPreferences.Editor mEditor;
	private boolean mBulkUpdate = false;

	/**
	 * Enum representing your setting names or key for your setting.
	 */
	public enum Key {
	  /* Recommended naming convention:
	   * ints, floats, doubles, longs:
	   * SAMPLE_NUM or SAMPLE_COUNT or SAMPLE_INT, SAMPLE_LONG etc.
	   *
	   * boolean: IS_SAMPLE, HAS_SAMPLE, CONTAINS_SAMPLE
	   * 
	   * String: SAMPLE_KEY, SAMPLE_STR or just SAMPLE
	   */
		SAMPLE_STR, 
		SAMPLE_INT
	}

	private ${NAME}(Context context) {
		mPref = context.getSharedPreferences(SETTINGS_NAME, Context.MODE_PRIVATE);
	}


	public static ${NAME} getInstance(Context context) {
		if (sSharedPrefs == null) {
			sSharedPrefs = new ${NAME}(context.getApplicationContext());
		}
		return sSharedPrefs;
	}

	public static ${NAME} getInstance() {
		if (sSharedPrefs != null) {
			return sSharedPrefs;
		}
		
		//Option 1:
		throw new IllegalArgumentException("Should use getInstance(Context) at least once before using this method.");
		
		//Option 2:
		// Alternatively, you can create a new instance here
		// with something like this:
		// getInstance(MyCustomApplication.getAppContext());
	}

    public void put(Key key, String val) {
        doEdit();
        mEditor.putString(key.name(), val);
        doCommit();
    }

    public void put(Key key, int val) {
        doEdit();
        mEditor.putInt(key.name(), val);
        doCommit();
    }

    public void put(Key key, boolean val) {
        doEdit();
        mEditor.putBoolean(key.name(), val);
        doCommit();
    }

    public void put(Key key, float val) {
        doEdit();
        mEditor.putFloat(key.name(), val);
        doCommit();
    }

    /**
     * Convenience method for storing doubles.
     * <p/>
     * There may be instances where the accuracy of a double is desired.
     * SharedPreferences does not handle doubles so they have to
     * cast to and from String.
     *
     * @param key The enum of the preference to store.
     * @param val The new value for the preference.
     */
    public void put(Key key, double val) {
        doEdit();
        mEditor.putString(key.name(), String.valueOf(val));
        doCommit();
    }

    public void put(Key key, long val) {
        doEdit();
        mEditor.putLong(key.name(), val);
        doCommit();
    }

    public String getString(Key key, String defaultValue) {
        return mPref.getString(key.name(), defaultValue);
    }

    public String getString(Key key) {
        return mPref.getString(key.name(), null);
    }

    public int getInt(Key key) {
        return mPref.getInt(key.name(), 0);
    }

    public int getInt(Key key, int defaultValue) {
        return mPref.getInt(key.name(), defaultValue);
    }

    public long getLong(Key key) {
        return mPref.getLong(key.name(), 0);
    }

    public long getLong(Key key, long defaultValue) {
        return mPref.getLong(key.name(), defaultValue);
    }

    public float getFloat(Key key) {
        return mPref.getFloat(key.name(), 0);
    }

    public float getFloat(Key key, float defaultValue) {
        return mPref.getFloat(key.name(), defaultValue);
    }

    /**
     * Convenience method for retrieving doubles.
     * <p/>
     * There may be instances where the accuracy of a double is desired.
     * SharedPreferences does not handle doubles so they have to
     * cast to and from String.
     *
     * @param key The enum of the preference to fetch.
     */
    public double getDouble(Key key) {
        return getDouble(key, 0);
    }

    /**
     * Convenience method for retrieving doubles.
     * <p/>
     * There may be instances where the accuracy of a double is desired.
     * SharedPreferences does not handle doubles so they have to
     * cast to and from String.
     *
     * @param key The enum of the preference to fetch.
     */
    public double getDouble(Key key, double defaultValue) {
        try {
            return Double.valueOf(mPref.getString(key.name(), String.valueOf(defaultValue)));
        } catch (NumberFormatException nfe) {
            return defaultValue;
        }
    }

    public boolean getBoolean(Key key, boolean defaultValue) {
        return mPref.getBoolean(key.name(), defaultValue);
    }

    public boolean getBoolean(Key key) {
        return mPref.getBoolean(key.name(), false);
    }

    /**
     * Remove keys from SharedPreferences.
     *
     * @param keys The enum of the key(s) to be removed.
     */
    public void remove(Key... keys) {
        doEdit();
        for (Key key : keys) {
            mEditor.remove(key.name());
        }
        doCommit();
    }
	
	/**
	 * Remove all keys from SharedPreferences.
	 */ 
	public void clear() {
		doEdit();
		mEditor.clear();
		doCommit();
	}	
	
	public void edit() {
		mBulkUpdate = true;
		mEditor = mPref.edit();
	}
	
	public void commit() {
		mBulkUpdate = false;
		mEditor.commit();
		mEditor = null;
	}
	
	private void doEdit() {
		if (!mBulkUpdate && mEditor == null) {
			mEditor = mPref.edit();
		}
	}
	
	private void doCommit() {
		if (!mBulkUpdate && mEditor != null) {
			mEditor.commit();
			mEditor = null;
		} 
	}	
}

SharedPreferencesSingletonStringKeyTemplate.java

#if (${PACKAGE_NAME} != "")package ${PACKAGE_NAME};#end

import android.content.Context;
import android.content.SharedPreferences;

/*
 * A Singleton for managing your SharedPreferences.
 *
 * You should make sure to change the SETTINGS_NAME to what you want
 * and choose the operating made that suits your needs, the default is
 * MODE_PRIVATE.
 *
 * IMPORTANT: The class is not thread safe. It should work fine in most 
 * circumstances since the write and read operations are fast. However
 * if you call edit for bulk updates and do not commit your changes
 * there is a possibility of data loss if a background thread has modified
 * preferences at the same time.
 * 
 * Usage:
 * 
 * int sampleInt = ${NAME}.getInstance(context).getInt(Key.SAMPLE_INT);
 * ${NAME}.getInstance(context).set(Key.SAMPLE_INT, sampleInt);
 * 
 * If ${NAME}.getInstance(Context) has been called once, you can 
 * simple use ${NAME}.getInstance() to save some precious line space.
 */
public class ${NAME} {
	// TODO: CHANGE THIS TO SOMETHING MEANINGFUL
	private static final String SETTINGS_NAME = "default_settings";
	private static ${NAME} sSharedPrefs;
	private SharedPreferences mPref;
	private SharedPreferences.Editor mEditor;
	private boolean mBulkUpdate = false;

	/**
	 * Class for keeping all the keys used for shared preferences in one place.
	 */
	public static class Key {
	  /* Recommended naming convention:
	   * ints, floats, doubles, longs:
	   * SAMPLE_NUM or SAMPLE_COUNT or SAMPLE_INT, SAMPLE_LONG etc.
	   *
	   * boolean: IS_SAMPLE, HAS_SAMPLE, CONTAINS_SAMPLE
	   * 
	   * String: SAMPLE_KEY, SAMPLE_STR or just SAMPLE
	   */
		public static final String SAMPLE_INT = "a_sample_key";

	}

	private ${NAME}(Context context) {
		mPref = context.getSharedPreferences(SETTINGS_NAME, Context.MODE_PRIVATE);
	}


	public static ${NAME} getInstance(Context context) {
		if (sSharedPrefs == null) {
			sSharedPrefs = new ${NAME}(context.getApplicationContext());
		}
		return sSharedPrefs;
	}

	public static ${NAME} getInstance() {
		if (sSharedPrefs != null) {
			return sSharedPrefs;
		}
		
		//Option 1:
		throw new IllegalArgumentException("Should use getInstance(Context) at least once before using this method.");
		
		//Option 2:
		// Alternatively, you can create a new instance here
		// with something like this:
		// getInstance(MyCustomApplication.getAppContext());
	}

	public void put(String key, String val) {
		doEdit();
		mEditor.putString(key, val);
		doCommit();
	}

	public void put(String key, int val) {
		doEdit();
		mEditor.putInt(key, val);
		doCommit();
	}

	public void put(String key, boolean val) {
		doEdit();
		mEditor.putBoolean(key, val);
		doCommit();
	}

	public void put(String key, float val) {
		doEdit();
		mEditor.putFloat(key, val);
		doCommit();
	}
	
	/**
	 * Convenience method for storing doubles.
	 *
	 * There may be instances where the accuracy of a double is desired.
	 * SharedPreferences does not handle doubles so they have to 
	 * cast to and from String.
	 *
	 * @param key The name of the preference to store.
	 * @param val The new value for the preference.
	 */	
	public void put(String key, double val) {
		doEdit();
		mEditor.putString(key, String.valueOf(val));
		doCommit();
	}

	public void put(String key, long val) {
		doEdit();
		mEditor.putLong(key, val);
		doCommit();
	}
	
	public String getString(String key, String defaultValue) {
		return mPref.getString(key, defaultValue);
	}
	
	public String getString(String key) {
		return mPref.getString(key, null);
	}	

	public int getInt(String key) {
		return mPref.getInt(key, 0);
	}

	public int getInt(String key, int defaultValue) {
		return mPref.getInt(key, defaultValue);
	}
	
	public long getLong(String key) {
		return mPref.getLong(key, 0);
	}

	public long getLong(String key, long defaultValue) {
		return mPref.getLong(key, defaultValue);
	}

	public float getFloat(String key) {
		return mPref.getFloat(key, 0);
	}

	public float getFloat(String key, float defaultValue) {
		return mPref.getFloat(key, defaultValue);
	}	

	/**
	 * Convenience method for retrieving doubles. 
	 *
	 * There may be instances where the accuracy of a double is desired.
	 * SharedPreferences does not handle doubles so they have to 
	 * cast to and from String.
	 *
	 * @param key The name of the preference to fetch.
	 */	
	public double getDouble(String key) {
		return getDouble(key, 0);
	}
	
	/**
	 * Convenience method for retrieving doubles. 
	 *
	 * There may be instances where the accuracy of a double is desired.
	 * SharedPreferences does not handle doubles so they have to 
	 * cast to and from String.
	 *
	 * @param key The name of the preference to fetch.
	 */
	public double getDouble(String key, double defaultValue) {
		try {
			return Double.valueOf(mPref.getString(key, String.valueOf(defaultValue)));
		} catch (NumberFormatException nfe) {
			return defaultValue;
		}
	}
		
	public boolean getBoolean(String key, boolean defaultValue) {
		return mPref.getBoolean(key, defaultValue);
	}

	public boolean getBoolean(String key) {
		return mPref.getBoolean(key, false);
	}

	/**
	 * Remove keys from SharedPreferences.
	 *
	 * @param keys The name of the key(s) to be removed.
	 */ 
	public void remove(String ... keys) {
		doEdit();
		for (String key : keys) {
			mEditor.remove(key);
		}
		doCommit();
	}
	
	/**
	 * Remove all keys from SharedPreferences.
	 */ 
	public void clear() {
		doEdit();
		mEditor.clear();
		doCommit();
	}	
	
	public void edit() {
		mBulkUpdate = true;
		mEditor = mPref.edit();
	}
	
	public void commit() {
		mBulkUpdate = false;
		mEditor.commit();
		mEditor = null;
	}
	
	private void doEdit() {
		if (!mBulkUpdate && mEditor == null) {
			mEditor = mPref.edit();
		}
	}
	
	private void doCommit() {
		if (!mBulkUpdate && mEditor != null) {
			mEditor.commit();
			mEditor = null;
		} 
	}	
}

ZAppPreferencesEnumExample.java

import android.content.Context;
import android.content.SharedPreferences;

/*
 * A Singleton for managing your SharedPreferences.
 *
 * You should make sure to change the SETTINGS_NAME to what you want
 * and choose the operating made that suits your needs, the default is
 * MODE_PRIVATE.
 *
 * IMPORTANT: The class is not thread safe. It should work fine in most 
 * circumstances since the write and read operations are fast. However
 * if you call edit for bulk updates and do not commit your changes
 * there is a possibility of data loss if a background thread has modified
 * preferences at the same time.
 * 
 * Usage:
 * 
 * int sampleInt = AppPreferencesEnumExample.getInstance(context).getInt(Key.SAMPLE_INT);
 * AppPreferencesEnumExample.getInstance(context).set(Key.SAMPLE_INT, sampleInt);
 * 
 * If AppPreferencesEnumExample.getInstance(Context) has been called once, you can 
 * simple use AppPreferencesEnumExample.getInstance() to save some precious line space.
 */
public class AppPreferencesEnumExample {
    // TODO: CHANGE THIS TO SOMETHING MEANINGFUL
    private static final String SETTINGS_NAME = "default_settings";
    private static AppPreferencesEnumExample sSharedPrefs;
    private SharedPreferences mPref;
    private SharedPreferences.Editor mEditor;
    private boolean mBulkUpdate = false;

    /**
     * Enum representing your setting names or key for your setting.
     */
    public enum Key {
        /* Recommended naming convention:
         * ints, floats, doubles, longs:
         * SAMPLE_NUM or SAMPLE_COUNT or SAMPLE_INT, SAMPLE_LONG etc.
         *
         * boolean: IS_SAMPLE, HAS_SAMPLE, CONTAINS_SAMPLE
         * 
         * String: SAMPLE_KEY, SAMPLE_STR or just SAMPLE
         */
        SAMPLE_STR,
        SAMPLE_INT
    }

    private AppPreferencesEnumExample(Context context) {
        mPref = context.getSharedPreferences(SETTINGS_NAME, Context.MODE_PRIVATE);
    }


    public static AppPreferencesEnumExample getInstance(Context context) {
        if (sSharedPrefs == null) {
            sSharedPrefs = new AppPreferencesEnumExample(context.getApplicationContext());
        }
        return sSharedPrefs;
    }

    public static AppPreferencesEnumExample getInstance() {
        if (sSharedPrefs != null) {
            return sSharedPrefs;
        }

        //Option 1:
        throw new IllegalArgumentException("Should use getInstance(Context) at least once before using this method.");

        //Option 2:
        // Alternatively, you can create a new instance here
        // with something like this:
        // getInstance(MyCustomApplication.getAppContext());
    }

    public void put(Key key, String val) {
        doEdit();
        mEditor.putString(key.name(), val);
        doCommit();
    }

    public void put(Key key, int val) {
        doEdit();
        mEditor.putInt(key.name(), val);
        doCommit();
    }

    public void put(Key key, boolean val) {
        doEdit();
        mEditor.putBoolean(key.name(), val);
        doCommit();
    }

    public void put(Key key, float val) {
        doEdit();
        mEditor.putFloat(key.name(), val);
        doCommit();
    }

    /**
     * Convenience method for storing doubles.
     * <p/>
     * There may be instances where the accuracy of a double is desired.
     * SharedPreferences does not handle doubles so they have to
     * cast to and from String.
     *
     * @param key The enum of the preference to store.
     * @param val The new value for the preference.
     */
    public void put(Key key, double val) {
        doEdit();
        mEditor.putString(key.name(), String.valueOf(val));
        doCommit();
    }

    public void put(Key key, long val) {
        doEdit();
        mEditor.putLong(key.name(), val);
        doCommit();
    }

    public String getString(Key key, String defaultValue) {
        return mPref.getString(key.name(), defaultValue);
    }

    public String getString(Key key) {
        return mPref.getString(key.name(), null);
    }

    public int getInt(Key key) {
        return mPref.getInt(key.name(), 0);
    }

    public int getInt(Key key, int defaultValue) {
        return mPref.getInt(key.name(), defaultValue);
    }

    public long getLong(Key key) {
        return mPref.getLong(key.name(), 0);
    }

    public long getLong(Key key, long defaultValue) {
        return mPref.getLong(key.name(), defaultValue);
    }

    public float getFloat(Key key) {
        return mPref.getFloat(key.name(), 0);
    }

    public float getFloat(Key key, float defaultValue) {
        return mPref.getFloat(key.name(), defaultValue);
    }

    /**
     * Convenience method for retrieving doubles.
     * <p/>
     * There may be instances where the accuracy of a double is desired.
     * SharedPreferences does not handle doubles so they have to
     * cast to and from String.
     *
     * @param key The enum of the preference to fetch.
     */
    public double getDouble(Key key) {
        return getDouble(key, 0);
    }

    /**
     * Convenience method for retrieving doubles.
     * <p/>
     * There may be instances where the accuracy of a double is desired.
     * SharedPreferences does not handle doubles so they have to
     * cast to and from String.
     *
     * @param key The enum of the preference to fetch.
     */
    public double getDouble(Key key, double defaultValue) {
        try {
            return Double.valueOf(mPref.getString(key.name(), String.valueOf(defaultValue)));
        } catch (NumberFormatException nfe) {
            return defaultValue;
        }
    }

    public boolean getBoolean(Key key, boolean defaultValue) {
        return mPref.getBoolean(key.name(), defaultValue);
    }

    public boolean getBoolean(Key key) {
        return mPref.getBoolean(key.name(), false);
    }

    /**
     * Remove keys from SharedPreferences.
     *
     * @param keys The enum of the key(s) to be removed.
     */
    public void remove(Key... keys) {
        doEdit();
        for (Key key : keys) {
            mEditor.remove(key.name());
        }
        doCommit();
    }

    /**
     * Remove all keys from SharedPreferences.
     */
    public void clear() {
        doEdit();
        mEditor.clear();
        doCommit();
    }

    public void edit() {
        mBulkUpdate = true;
        mEditor = mPref.edit();
    }

    public void commit() {
        mBulkUpdate = false;
        mEditor.commit();
        mEditor = null;
    }

    private void doEdit() {
        if (!mBulkUpdate && mEditor == null) {
            mEditor = mPref.edit();
        }
    }

    private void doCommit() {
        if (!mBulkUpdate && mEditor != null) {
            mEditor.commit();
            mEditor = null;
        }
    }
}

ZAppPreferencesStringExample.java

import android.content.Context;
import android.content.SharedPreferences;

/*
 * A Singleton for managing your SharedPreferences.
 *
 * You should make sure to change the SETTINGS_NAME to what you want
 * and choose the operating made that suits your needs, the default is
 * MODE_PRIVATE.
 *
 * IMPORTANT: The class is not thread safe. It should work fine in most 
 * circumstances since the write and read operations are fast. However
 * if you call edit for bulk updates and do not commit your changes
 * there is a possibility of data loss if a background thread has modified
 * preferences at the same time.
 * 
 * Usage:
 * 
 * int sampleInt = AppPreferences.getInstance(context).getInt(Key.SAMPLE);
 * AppPreferences.getInstance(context).set(Key.SAMPLE, sampleInt);
 * 
 * If AppPreferences.getInstance(Context) has been called once, you can 
 * simple use AppPreferences.getInstance() to save some precious line space.
 */
public class AppPreferencesStringExample {
    // TODO: CHANGE THIS TO SOMETHING MEANINGFUL
    private static final String SETTINGS_NAME = "default_settings";
    private static AppPreferencesStringExample sSharedPrefs;
    private SharedPreferences mPref;
    private SharedPreferences.Editor mEditor;
    private boolean mBulkUpdate = false;

    /**
     * Class for keeping all the keys used for shared preferences in one place.
     */
    public static class Key {
        public static final String SAMPLE = "a_sample_key";

    }

    private AppPreferencesStringExample(Context context) {
        mPref = context.getSharedPreferences(SETTINGS_NAME, Context.MODE_PRIVATE);
    }


    public static AppPreferencesStringExample getInstance(Context context) {
        if (sSharedPrefs == null) {
            sSharedPrefs = new AppPreferencesStringExample(context.getApplicationContext());
        }
        return sSharedPrefs;
    }

    public static AppPreferencesStringExample getInstance() {
        if (sSharedPrefs != null) {
            return sSharedPrefs;
        }

        //Option 1:
        throw new IllegalArgumentException("Should use getInstance(Context) at least once before using this method.");

        //Option 2:
        // Alternatively, you can create a new instance here
        // with something like this:
        // getInstance(MyCustomApplication.getAppContext());
    }

    public void put(String key, String val) {
        doEdit();
        mEditor.putString(key, val);
        doCommit();
    }

    public void put(String key, int val) {
        doEdit();
        mEditor.putInt(key, val);
        doCommit();
    }

    public void put(String key, boolean val) {
        doEdit();
        mEditor.putBoolean(key, val);
        doCommit();
    }

    public void put(String key, float val) {
        doEdit();
        mEditor.putFloat(key, val);
        doCommit();
    }

    /**
     * Convenience method for storing doubles.
     * <p/>
     * There may be instances where the accuracy of a double is desired.
     * SharedPreferences does not handle doubles so they have to
     * cast to and from String.
     *
     * @param key The name of the preference to store.
     * @param val The new value for the preference.
     */
    public void put(String key, double val) {
        doEdit();
        mEditor.putString(key, String.valueOf(val));
        doCommit();
    }

    public void put(String key, long val) {
        doEdit();
        mEditor.putLong(key, val);
        doCommit();
    }

    public String getString(String key, String defaultValue) {
        return mPref.getString(key, defaultValue);
    }

    public String getString(String key) {
        return mPref.getString(key, null);
    }

    public int getInt(String key) {
        return mPref.getInt(key, 0);
    }

    public int getInt(String key, int defaultValue) {
        return mPref.getInt(key, defaultValue);
    }

    public long getLong(String key) {
        return mPref.getLong(key, 0);
    }

    public long getLong(String key, long defaultValue) {
        return mPref.getLong(key, defaultValue);
    }

    public float getFloat(String key) {
        return mPref.getFloat(key, 0);
    }

    public float getFloat(String key, float defaultValue) {
        return mPref.getFloat(key, defaultValue);
    }

    /**
     * Convenience method for retrieving doubles.
     * <p/>
     * There may be instances where the accuracy of a double is desired.
     * SharedPreferences does not handle doubles so they have to
     * cast to and from String.
     *
     * @param key The name of the preference to fetch.
     */
    public double getDouble(String key) {
        return getDouble(key, 0);
    }

    /**
     * Convenience method for retrieving doubles.
     * <p/>
     * There may be instances where the accuracy of a double is desired.
     * SharedPreferences does not handle doubles so they have to
     * cast to and from String.
     *
     * @param key The name of the preference to fetch.
     */
    public double getDouble(String key, double defaultValue) {
        try {
            return Double.valueOf(mPref.getString(key, String.valueOf(defaultValue)));
        } catch (NumberFormatException nfe) {
            return defaultValue;
        }
    }

    public boolean getBoolean(String key, boolean defaultValue) {
        return mPref.getBoolean(key, defaultValue);
    }

    public boolean getBoolean(String key) {
        return mPref.getBoolean(key, false);
    }

    /**
     * Remove keys from SharedPreferences.
     *
     * @param keys The name of the key(s) to be removed.
     */
    public void remove(String... keys) {
        doEdit();
        for (String key : keys) {
            mEditor.remove(key);
        }
        doCommit();
    }

    /**
     * Remove all keys from SharedPreferences.
     */
    public void clear() {
        doEdit();
        mEditor.clear();
        doCommit();
    }

    public void edit() {
        mBulkUpdate = true;
        mEditor = mPref.edit();
    }

    public void commit() {
        mBulkUpdate = false;
        mEditor.commit();
        mEditor = null;
    }

    private void doEdit() {
        if (!mBulkUpdate && mEditor == null) {
            mEditor = mPref.edit();
        }
    }

    private void doCommit() {
        if (!mBulkUpdate && mEditor != null) {
            mEditor.commit();
            mEditor = null;
        }
    }
}