Android 9 Development Cookbook - Third Edition

How to do it...

We're going to create a layout with an ImageView and button. The button will create an Intent to launch the default Camera app. When the camera app is done, our app will get a callback. We'll check the result and display the picture if available. Start by opening the Android Manifest and follow these steps:

1. Add the following permission:

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

2. Open activity_main.xml and replace the existing TextView with the following views:

<android.support.v7.widget.AppCompatImageView android:id="@+id/imageView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@mipmap/ic_launcher" app:layout_constraintTop_toTopOf="parent" app:layout_constraintLeft_toLeftOf= ...