Android Select Contacts: Programming Guide to Implement Contact Select Function

In Android application development, selecting the contact function is a common requirement. It allows the user to select one or more contacts from the device's contact list and use the selected contacts' information in the app. This article will introduce how to implement the contact selection function in Android applications and provide corresponding source code examples.

First, we need to add the corresponding permission declaration in the AndroidManifest.xml file so that the app can access the device's contact data. Add the following code under the <manifest> tag:

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

Next, we create a button or other UI element that triggers the select contact functionality. Add the following code in your layout file (e.g. activity_main.xml):

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