Add Call Android

If you’re looking to add call functionality to your Android app, you’re in the right place. In this article, we’ll guide you through the process of adding call capabilities to your app, including how to initiate a call, receive incoming calls, and handle call states.

When adding the feature of placing phone calls to your Android app, you can rely on the platform’s built-in functionality. Android provides the Telephony API that equips developers with essential tools to programmatically make and receive phone calls.

This is a crucial part of the Android framework, providing classes and interfaces that enable developers to interact with the telephony services offered by the system.

Android Permission Call_phone

To make a phone call programmatically in Android, you need to take the initial step of obtaining permission to make phone calls by including the CALL_PHONE permission in the AndroidManifest.xml file. You can achieve this by adding the following line of code:

<uses-permission android:name="android.permission.CALL_PHONE" />

Android Add Call Intent

After granting permission to make phone calls in the AndroidManifest.xml file, you can use the Intent class to initiate a phone call.

The ACTION_CALL action can be used to directly initiate a phone call from the application without requiring user intervention.

Here is an example of how you can make a phone call using the Intent class:

String phoneNumber = "1234567890";
Intent intent = new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:" + phoneNumber));
startActivity(intent);

This code initiates a phone call to the number “1234567890” using Android’s built-in Intent.ACTION_CALL functionality. It first obtains permission to make phone calls and then creates an intent with the phone number as a URI. Finally, it starts the intent to initiate the call.

However, it’s important to note that the ACTION_CALL action requires the CALL_PHONE permission. This permission can be dangerous if not used properly. As a result, it’s highly recommended to use the ACTION_DIAL action instead. The ACTION_DIAL action opens the dialer app with the phone number pre-populated. This allows the user to initiate the call manually. The following code shows how to use the ACTION_DIAL action:

String phoneNumber = "1234567890";
Intent intent = new Intent(Intent.ACTION_DIAL);
intent.setData(Uri.parse("tel:" + phoneNumber));
startActivity(intent);

above example starts by creating an Intent object with the ACTION_DIAL action to initiate a phone call. We also specify the “tel:” data URI with the phone number concatenated to it to pre-populate the phone number in the dialer app. The “phoneNumber” variable is used to hold the phone number we want to call. Finally, we use the startActivity() method to launch the dialer app on the device and allow the user to initiate the call manually. It’s worth noting that the ACTION_DIAL action doesn’t require any special permissions, making it a safer option to use compared to ACTION_CALL.

Receiving Incoming Calls

To receive incoming calls, you’ll need to create a BroadcastReceiver that listens for the PHONE_STATE broadcast action.

Here’s an example code that shows how to do this:

class CallReceiver : BroadcastReceiver() {

override fun onReceive(context: Context?, intent: Intent?) {
val state = intent?.getStringExtra(TelephonyManager.EXTRA_STATE)
if (state == TelephonyManager.EXTRA_STATE_RINGING) {
val phoneNumber = intent?.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER)
// Handle the incoming call
}
}
}

This code creates a BroadcastReceiver that listens for the PHONE_STATE broadcast action.

When an incoming call is received, the onReceive method is called with an intent that contains the phone number of the caller.

You can then handle the incoming call in the if block.

Handling Call States

To handle call states, you’ll need to implement the PhoneStateListener class.

Below is an example code that shows how to do this:

val telephonyManager = getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager
val phoneStateListener = object : PhoneStateListener() {
override fun onCallStateChanged(state: Int, phoneNumber: String?) {
when (state) {
TelephonyManager.CALL_STATE_IDLE -> {
// Call ended
}
TelephonyManager.CALL_STATE_RINGING -> {
// Incoming call
}
TelephonyManager.CALL_STATE_OFFHOOK -> {
// Call in progress
}
}
}
}
telephonyManager.listen(phoneStateListener, PhoneStateListener.LISTEN_CALL_STATE)

This code creates a PhoneStateListener object that listens for call state changes, including when a call is initiated, when an incoming call is received, and when a call ends.

The onCallStateChanged method is called whenever the call state changes, and you can handle each state in the when block.

In conclusion, add call functionality to your Android app is a straightforward process that can greatly enhance the user experience. By following the steps outlined in this article, you can easily initiate calls, receive incoming calls, and handle call states in your app.