Widget of quick calls

Convenient and functional contact widget that always on your screen. Widget has a few groups, in which you can add any contacts and have quick access to them for calls through the phone, Viber and WhatsApp.
In order to connect your contacts with Viber or WhatsApp, you need to install these applications.

Key features:
- two widgets with Large and Small Icons. Widgets can be resized in height, from 2 * 2 to 2 * 5 and higher. Just click on the widget on the screen and after selecting resize it;
- The number of groups by default is two, but you can easily increase the number to six;
- Possibility to tie each group to calls via Phone, Viber or WhatsApp, as well as sending SMS. In order to connect your contacts with Viber or WhatsApp, you need to install these applications;
- Possibility to select a SIM card in phone mode for each group for 2 sim-card phones;
- Selection of the color of the widget;
- Convenient switching between groups;
- Quick access to settings;
- Convenient scrolling of contacts in each group.

Widget tuning:
1) Install the application from the application market;
2) Click on the screen and keep until open a menu where you can select "Widgets";
3) Enter the Widgets menu and find in the list "Quick Calls", then by clicking on it, select the desired size of the widget and place on the screen in free space;
4) In the opened window for each group, select Phone, Viber, WhatsApp or SMS;
5) If the phone supports two sim cards, you can tie a SIM card for each group in phone mode, just click on the necessary SIM card under the mode selection icons;
6) In the left column find the necessary contacts for each group (under the column you can also use the convenient search);
7) Click the left-bottom button and select any color of the widget.
8) Click "Save", your widget is ready to work;
9) When using the widget, you can also receive notifications with gratitude for using the widget (it is relevant for some versions of Android. You can disable the notification in the phone settings).

I will be very grateful for all comments and suggestions, please send e-mail. I am ready for consider any criticism and suggestions for improvement.