Challenge: Another Implicit Intent - Done

Android Programming (4th Edition) 15. Implicit Intents
1

This was a headache… I just noticed that we have to check for permission in the code, not just adding it into the Manifest, and I think every professional coder should do that… but anyway i didn’t include it in my code…

for this intent to be done (Dialing the number) i did as follows…

I created a button and applied this to it

          /**
             * Getting contact Phone URI to fetch the number
             */
            callSuspect.apply {
                val pickPhoneIntent = Intent(Intent.ACTION_PICK,ContactsContract.CommonDataKinds.Phone.CONTENT_URI)
                setOnClickListener {
                    startActivityForResult(pickPhoneIntent, REQUEST_PHONE)
                }
            }

then in onActivityResult i checked for REQUEST_PHONE

          /**
             * Get the Phone Number
             */
            requestCode == REQUEST_PHONE && data != null -> {
                val contactURI : Uri? = data.data

                //Got the phone ID
                val queryFields = ContactsContract.CommonDataKinds.Phone._ID

                //Perform Your Query - the Phone.CONTENT_URI is like a "where" clause here
                val cursor =
                   requireActivity().contentResolver
                        .query(contactURI!!, null, queryFields, null, null)

                   cursor.use {
                        if (it?.count == 0) {
                            return
                        }
                        it?.moveToFirst()
                        val number = it?.getString(it.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER))

                       val dialNumber = Intent(Intent.ACTION_DIAL)
                       dialNumber.data = Uri.parse("tel: $number")
                       startActivity(dialNumber)

                    }
                cursor?.close()
            }

Happy Dialing…

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