ContactDisplay (Function)

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Special cases
Required application feature
Application in the background: Specific case from Android 10

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ContactDisplay (Function)

In french: ContactAffiche

Opens the form of a contact in the device's native contacts application (Android, iPhone or iPad, Universal Windows).

Example

//Procedure used to display the contact selected in a Looper control
PROCÉDURE DisplayContact(nContactNum is int)
tContact is Contact
IF nContactNum <= gtabContacts.Count THEN
tContact = gtabContacts[nContactNum]
// Initializes the contact
VariableReset(gCurrentContact)
gCurrentContact = tContact
ContactDisplay(gCurrentContact)
END

Syntax

Displaying a contact from a Contact variable Hide the details

<Result> = ContactDisplay(<Contact>)

<Result>: Boolean

True if the form of the contact was opened,
False otherwise. To get more details on the error, use ErrorInfo.

<Contact>: Contact variable

Name of the Contact variable corresponding to the contact to display. This contact must exist in the database of contacts.

Remarks

Special cases

ContactDisplay gives control back to the application once the contact form has been displayed.
ContactDisplay can be used in the emulator. It cannot be used in the simulator.

Required application feature

When this function is used, an application feature is declared in the application generation wizard.

Required feature: Contacts

This feature allows the applications to access the contacts.

Application in the background: Specific case from Android 10

From Android 10, it is no longer possible to open a window when the application is in the background.

ContactDisplay can open a window. If this function is used while the application is in the background, a fatal error will occur.

Tips:

It is possible to determine if the application is in the background using InBackgroundMode.
If an application needs to interact with the user while it is in the background, the solution is to display a notification (via the Notification type). The application will be brought back to the foreground when the notification is clicked, if the ActivateApplication property is set to True. You can also open a window from the procedure passed to the ActionClick property.

For more details, see Android 10: Behavior of applications in the background.

Component: wdandroid.aar