Android Tutorial - How to send WhatsApp messages with MIT App Inventor 2

In this video I am going to show you how to easily send WhatsApp messages in your MIT App Inventor 2 Android App.\r
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The properties for the ivitystarter are:\r
Action = android.intent.ion.SEND\r
ActivityPackage = com.whatsapp\r
ActivityClass = com.whatsapp.ContPicker\r
DataType = text/plain\r
ExtraKey = android.intent.extra.TEXT\r
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You can download the source file from here:\r
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Feel free to comment and ask any question.