App start

An action block that starts an app activity.

The fiber will proceed immediately without pause. If you want the fiber to pause until the activity has finished, use the App decision block instead.

An app activity is referred, either explicitly by its package and activity class (use the Pick app activity button), or implicitly by an Action and Data URI. To implicitly start the “main” activity like the launcher does, specify only the package.

What data and actions an activity support varies. Search for public documentation, or look at the app manifest for clues.

When including a file URI either as data URI or "android.intent.extra.STREAM" extra, ensure to enable the appropriate Grant flags otherwise it may be inaccessible to the app.

Note! If this block cause a SecurityException failure is likely because the activity isn’t exported, it’s been temporarily or permanently disabled, or it’s secured by a permission to prevent third-party apps from launching it.

Common extras

Information about common Intents.

KeyConversion typeDescription
"android.intent.extra.HTML_TEXT"StringA HTML alternative to "android.intent.extra.TEXT"
"android.intent.extra.REFERRER"UriHTTP or package referrer
"android.intent.extra.STREAM"UriData stream
"android.intent.extra.SUBJECT"StringSubject of a message
"android.intent.extra.TEXT"CharSequenceA generic text
"android.intent.extra.TITLE"CharSequenceA generic title
"query"StringA search query

Launch options

KeyConversion typeDescription
"android:activity.animType"IntValue as 7 will launch activity (behind) without presenting it to user, only accessible through “recents” screen (Android 4.4+)
"android:activity.launchBounds"RectThe [top,left,right,bottom] bounds (window size) that the activity should be launched in (Android 7+)
"android.activity.launchDisplayId"IntDisplay id the activity should be launched into (Android 8+)
"android:activity.lockTaskMode"BooleanWhether the activity should be launched into “LockTask” mode (Android 9+)

Input arguments