PreferencesUtils工具类，简化preference

public class PreferencesUtils {

    private Context context;

    public PreferencesUtils(Context context) {
        this.context = context;
    }

    public boolean putInt(String key, int value) {
        boolean flag = context.getSharedPreferences(Constant.PREFERENCE_NAME, Context.MODE_PRIVATE).edit().putInt(key, value).commit();
        return flag;
    }

    public int getInt(String key, int defValue) {
        return context.getSharedPreferences(Constant.PREFERENCE_NAME, Context.MODE_PRIVATE).getInt(key, defValue);
    }

    public boolean putLong(String key, long value) {
        boolean flag = context.getSharedPreferences(Constant.PREFERENCE_NAME, Context.MODE_PRIVATE).edit().putLong(key, value).commit();
        return flag;
    }

    public long getLong(String key, long defValue) {
        return context.getSharedPreferences(Constant.PREFERENCE_NAME, Context.MODE_PRIVATE).getLong(key, defValue);
    }

    public boolean putString(String key, String value) {
        return context.getSharedPreferences(Constant.PREFERENCE_NAME, Context.MODE_PRIVATE).edit().putString(key, value).commit();
    }

    public String getString(String key, String defValue) {
        return context.getSharedPreferences(Constant.PREFERENCE_NAME, Context.MODE_PRIVATE).getString(key, defValue);
    }

    public boolean putBoolean(String key, boolean value) {
        return context.getSharedPreferences(Constant.PREFERENCE_NAME, Context.MODE_PRIVATE).edit().putBoolean(key, value).commit();
    }

    public boolean getBoolean(String key, boolean defValue) {
        return context.getSharedPreferences(Constant.PREFERENCE_NAME, Context.MODE_PRIVATE).getBoolean(key, defValue);
    }

    public boolean clearAllValue() {
        return context.getSharedPreferences(Constant.PREFERENCE_NAME, Context.MODE_PRIVATE).edit().clear().commit();
    }
}