I\'m trying to send mms from my app only. I made it default messaging app with help of android developers tutorial (http://android-developers.blogspot.com/2013/10/getting-yo
As the default app, yours is responsible for sending the MMS itself, not opening another app to do so, which is what your code is doing. Currently, Android does not have a simple API for MMS, as it does for SMS. Furthermore, it is a very poorly documented aspect of the framework, and the amount of code and explanation necessary to implement it is out of scope for Stack Overflow. You're welcome to inspect the source code of the native app for guidance, but keep in mind that it is no trivial task, as the default app is responsible for everything needed to handle MMS, including sending, receiving, and Content Provider transactions.