The Scheduler Widget sample application demonstrates how you can manage text objects and image objects to create a complete widget view.
For information on creating the sample application project in the IDE, see Creating Sample Applications.
The following figure illustrates the main screen of the Scheduler Widget.
Figure: Scheduler Widget screen
The widget displays the tasks for a specific day.
Source Files
You can create and view the sample application project including the source files in the IDE.
| File name | Description |
|---|---|
| edje/images | This directory contains the image files used in the main.edc file. |
| inc/data.h | This file contains information and definition of the variables and functions used in the C files, especially in the data.c file. |
| inc/log.h | This file contains the log tag. It can also contain information and definition of the variables and functions used in the C files. |
| inc/view.h | This file contains information and definition of the variables and functions used in the C files, especially in the view.c file. |
| res/edje/main.edc | This file is for the UI and contains style, image, and position of the sample application. |
| res/images | This directory contains the image files used in the C files. |
| src/data.c | This file contains the functions for retrieving and making data for the application. |
| src/main.c | This file contains the functions related to the application life-cycle, callback functions, and view control. |
| src/view.c | This file contains the functions for implementing the views and handling events. |
Implementation
Application Layout
The view_create() function creates the widget view frame that consists of the window, text parts, and image parts.
view_create(context, w, h);
Figure: Scheduler Widget view frame
To fill out the text parts:
Implement the data_get_text() function to create the text you want to use. In this function, you can also choose the part name which you want to fill out.
Call the view_set_text() function with the part name and text you obtained.
In this example, the text to use is txt_day and the part name to fill out is widget.day.
txt_day = data_get_text("widget.day");
view_set_text(wid, "widget.day", txt_day);
Setting Touch Events
The view_set_event_callback() function controls the widget main operation that launches an application from the home screen.
The launch options are:
- WIDGET_EVENT_PRESSED for launch on a touch press event
- WIDGET_EVENT_RELEASED for launch on a touch release event
- WIDGET_EVENT_CLICKED for launch on a click event
In this example, the widget launches an application when the user clicks the widget:
view_set_event_callback(wid, "widget.event", WIDGET_EVENT_CLICKED, clicked_cb);