Data loss while using the app (form disappears on-screen rotation)

[davirec]

When I perform these sequences of events, the form disappears on-screen rotation:

1. Go to the Main activity
2. Tap in Configure
3. Tap in Trigger numbers
4. Tap in plus
5. Enter a contact
6. A form similar to this will appear:

Before rotation:

8. Force the pause from the activity and then return to the activity (double rotation). Note that the form disappears. Note: the pause from activity can be performed in several ways. We suggest using a double rotation (starts in portrait, goes to landscape, and back to portrait) with this function previously enabled in the smartphone.

The expected behavior is the return to the previous state with the form of the previous image.

However, the form disappears.

After rotation:

Device:

• Device: Moto G30 with OS: Android 11
• Version: 0.5
• Device language: English

[davirec]

We found similar flaws in activities:

• ContactPickerActivity (form fragment disappears and message fragment disappears)
• SettingsActivity (popup menu disappears)
• TriggerActivity (selection fragment disappears)

Note:

• Double screen rotation: It is executed twice to reach a state that should be exactly the same as the screen before if no data loss occurred.
• A data loss problem occurs when data is accidentally deleted or state variables are accidentally assigned with default or initial values.