Building a Caller ID and Spam Blocker App for Android in 2023
<p>Welcome to the world of app development! In this blog, we’ll be exploring the basics of building a Caller ID and Spam Blocker app for Android. Despite the numerous challenges posed by the latest Android APIs, including <a href="https://developer.android.com/about/versions/oreo/background" rel="noopener ugc nofollow" target="_blank">background restrictions</a>, creating a functional and user-friendly app is still possible. Whether you’re a beginner or have some experience in app development, this blog will provide you with a solid foundation for creating your own caller ID and spam blocker app. So, let’s get started!</p>
<p><img alt="" src="https://miro.medium.com/v2/resize:fit:630/1*wQBRySRyxEDT-MrHCt8nHg.jpeg" style="height:700px; width:700px" /></p>
<p><strong>Call screening service:</strong></p>
<p>In our blog, we will use the Android <a href="https://developer.android.com/reference/android/telecom/CallScreeningService" rel="noopener ugc nofollow" target="_blank">Call Screening Service</a> to build a caller ID and spam blocker app. For incoming and outgoing calls, <a href="https://developer.android.com/reference/android/telecom/CallScreeningService" rel="noopener ugc nofollow" target="_blank">the telecom system will connect to the app selected by the user that implements the CallScreeningService API</a>.</p>
<p>Implementing the <a href="https://developer.android.com/reference/android/telecom/CallScreeningService" rel="noopener ugc nofollow" target="_blank">CallScreeningService API</a> is simple. Start by creating a class that extends the <a href="https://developer.android.com/reference/android/telecom/CallScreeningService" rel="noopener ugc nofollow" target="_blank">CallScreeningService class</a> provided by the Android framework. Give it a name of your choice, for example, “MyCallScreeningService”. Then, override the <a href="https://developer.android.com/reference/android/telecom/CallScreeningService#onScreenCall(android.telecom.Call.Details)" rel="noopener ugc nofollow" target="_blank">onScreenCall</a> callback, which is triggered when a new incoming or outgoing call is received.</p>
<p><a href="https://medium.com/@harshalp2120/building-a-caller-id-and-spam-blocker-app-for-android-in-2023-b8587b03604a">Read More</a></p>