There are Apps that send sms scheduled messages and run on the user’s phone.
My concept is to market a keyword autoresponder app that runs totally on the user’s phone.
There are a number of apps that send sms scheduled messages and run on the user’s phone.
Please install this sample code of the app below which sends sms through the default sms messenger app on the user’s phone, run it, and confirm how it works:
https://github.com/GowthamGoush/SMS_Scheduler_app
There are other sms scheduling apps that run on the user’s phone – see the link below.
https://github.com/search?q=sms+messaging+scheduling+app&type=repositories
Here are some results of a google search i made.
https://stackoverflow.com/questions/9256088/sms-scheduling-in-android
https://stackoverflow.com/questions/15220340/how-to-schedule-text-messages-in-android
https://stackoverflow.com/questions/6913643/android-schedule-sms
Questions on Handling images – and scheduling times
I am assuming that an image attached to a message will stay in the gallery folder of the phone and the link to that image is stored in a database so that when the message is sent the linked image is included with the message.
Where is this database which contains the links to the attached images?
Is it the database the same on all Androids?
Where are the scheduling times of messages stored? Which database?
Where are SMS messages stored? Are they saved in a database?
How does the sms scheduling app work does it just store the Schedule and the message and the links to the attached images in the same place/database that the default sms messenger app stores them?
Will that prompt the default sms messaging app to send these scheduled messages?