meedaycodes / Tkinter-GUI-App

A gui application developed with tKinter with the capability of carrying out several operations

Tkinter-GUI-App

• The front_end.exe file for the app can be downloaded in the dist folder a of this repository . It also comes with a sqlite database which can be be wiped out and reused for storing other information

Design the Interface

• This was the first task of building the app as it allows for a pictorial illustration what would be contained in it in terms of dimensions of each button and functions we would like to perform on the app such as adding a new entry of record to the database, query the database, delete entry from the database

Coding The Front-End

• I used the Tkinter Library to build the whole front end of this app. Tkinter was selected because it allows for building effective GUIs for users in short amount of time
• First the library was imported using pip, then a Tkinter window with the code below

window =Tk()

window.wm_title("PHONERECORD")

l1 = Label(window, text="Phone Name")
l1.grid(row=0, column=0)

phone_name_text = StringVar()
e1=Entry(window, textvariable=phone_name_text)
e1.grid(row=0,column=1)

list1=Listbox(window, height=8, width=65)
list1.grid(row=2,column=0,rowspan=12, columnspan=2)

b1 = Button(window, text="View All", width=15, command=view_command)
b1.grid(row=3, column=3)

window.mainloop()

• I created first a window which is an instance of the Tinker class object, then a title is given to the window frame created
• the window class id then populated with the elements (buttons, textboxes, scrollbar) relevant to use the app effectively
• See the front_end.py file for full front end code

Coding the Back End

• The backend.py file contains the full code that was used to create the database for this application
• Sqlite was used as the database for this project, the sqlite library was first imported , then a connection was made with the sqlite database

def connect():
    connected = sqlite3.connect("Phones_Record.db")
    cur= connected.cursor()
    cur.execute("CREATE TABLE IF NOT EXISTS phonerecord (id INTEGER PRIMARY KEY, phone_name TEXT, camera TEXT, launch_date DATE, battery TEXT, display_size TEXT, price FLOAT)")
    connected.commit()
    connected.close()

def insert(phone_name, camera, launch_date, battery, display_size, price):
    connected = sqlite3.connect("Phones_Record.db")
    cur= connected.cursor()
    cur.execute("INSERT INTO phonerecord VALUES (NULL, ?,?,?,?,?,?)",(phone_name, camera, launch_date, battery, display_size, price))
    connected.commit()
    connected.close()

Connecting Front-end to Back-end

• The connection of the front-end to the back-end can be found in the front-end.py file with series of python functions that gets executed when queries are made in the front end

def view_command():
    list1.delete(0, END)
    for row in backend.view():
        list1.insert(END,row)

def search_command():
    list1.delete(0,END)
    for row in backend.search(phone_name_text.get(), launch_date_text.get(), camera_text.get(),battery_text.get(), display_size_text.get(), price_text.get()):
        list1.insert(END, row)

Building the .exe file with pyinstaller Library

• On completing the process of connecting both part of the applicattion pyinstaller was installed to create a downloaded .exe file that can be used on both windows and machines. In this repo the .exe file can be found in the dist folder of the file section

THANK YOU