"runtimeexception: Could Not Launch Activity...unable To Resolve Activity For Intent" When Running Jetpack Compose Ui Tests With Createcomposerule

Running tests with createComposeRule and hitting a stack trace like (irrelevant parts omitted): java.lang.RuntimeException: Could not launch activity at androidx.test.runner.Monito

Solution 1:

The OP question is about the use of createComposeRule() which doesn't require a custom activity (it uses ComposeActivity under the hood).

In this case you need to include this below in your gradle file:

    debugImplementation "androidx.compose.ui:ui-test-manifest:1.0.0-beta05"

If you take a look at the contents of that package, it's simply an AndroidManifest.xml with an <activity/> entry for androidx.activity.ComponentActivity.

Solution 2:

You need declare an Activity with name android.app.Activity in your AndroidManifest.xml for the Compose UI tests to use to host the content. Add the following within your <application> tag:

<activityandroid:name="android.app.Activity"android:theme="@style/your_app_theme_here"/>

substituting your_app_theme_here with a theme that exists in your app.

Solution 3:

You need to add

<activityandroid:name="androidx.activity.ComponentActivity" />

to your manifest.