Add the hardcoded strings of the TextView's to strings.xml. It's one of the good practices of Android app development and will also help in making the app support multi-languages.

Same as that of message on WhatsApp button. Reuse the same code.

Add the apk of the current version of the app at https://github.com/NJACKWinterOfCode/WhatsApp-Direct-Message/tree/master/apk .

colorPrimary - #0091EA
colorPrimaryDark - #000000
Change the color theme of the app by pasting the above-given color codes in appropriate .xml of the res folder.

Change the shape of the buttons from rectangle to rounded rectangle.

Make UI similar to-

Restrict the app to portrait mode only.

When user clicks on dark theme option present in the menu, then the app color scheme should change to shades of black.

Resize the screenshots. Make them smaller.

Once the user inputs any number before redirecting it to WhatsApp check whether the number is in a valid format or not. Check whether it has country code followed by the phone number of appropriate length corresponding to the country.

Need to fix the dark theme.
Nothing is happening while tapping on the dark theme menu.

Add strings of different languages to enable the user to view app in different languages.

From the menu remove light theme option and create a toggle button for dark theme. If it is enabled the app will have dark theme and the default theme will be light theme.

Design an icon for the app and add it to the assets.

The list of available languages appears in English only. The list values should appear in their respective language.

Add a drop-down containing the list of country codes on the left side of phone number edit text.

On the main screen, the spinner is getting clipped and says elect language.

Display country name along with the country code.

1. Make the homescreen scrollable.
If a user wants to tap on clear button, he/she has to first close the keyboard. So, make the view scrollable.
2. Increase the corner radius of the buttons.
3. Remove the help activity.

Add a manu in the Action Bar having an option of change to dark theme.

There are unnecessary codes related to 'about us' page in strings file .
The page is removed,so the codes are creating compilation error.
Fix them.

Currently, the onOptionsItemSelected() method has been implemented twice. Merge them.

Currently, if we click on send msg on whatsapp, the app redirects to whatsapp even if input field is empty i.e. no input number. Add a checker which checks whether the user has input some number then only redirect to whatsapp, if not, then a pop up should open with msg please enter a number.

Currently, the app is made using relative layout. Make the UI of the app using constraint layout.

On selecting different languages, the clear button text does not change.

Clear button has a greyish background which does not look good.
Change to background to match app's UI.

To add a button which on clicking will clear the pre-existed number

Fix the duplicate lines in strings. xml file

IF removing help option so why not have a save option as a menu item on title bar instead of a BUTTON

Need to add a relevant background to the homescreen.

Update the apk to the current version of the app and also change the name of the .apk file to WhatsApp Direct Message.apk