Surface View¶
| Category | Requires | Version |
|---|---|---|
| Layout > Views | API 21, Android 5.0 Lollipop | 2 |
Overview¶
A visible component that shows a live preview of the user''s camera as its background.
Permissions
Events¶
Clicked¶
Event to detect clicks on the camera preview.
Face Detected¶
Event to detect that there are faces in the front of the camera.
| Params | |
|---|---|
| numbers | Text |
Got Preview¶
Event to get the response from the camera preview as image file. The picture is by default in landscape mode. This event will only work if the option "Save Preview As File" is enabled/ true.
| Params | |
|---|---|
| image | Text |
Long Clicked¶
Event to detect long clicks on the camera preview.
Picture Created¶
Event to detect that the user has taken a picture from the preview.
| Params | |
|---|---|
| image | Text |
Preview Paused¶
Event to detect that the user paused the camera preview.
Preview Stoped¶
Event to detect that the user stopped the camera preview.
Methods¶
Pause Preview¶
Pause the camera preview.
Start Preview¶
Start the camera preview.
Stop Preview¶
Stop the camera preview.
Take Picture¶
Take a picture from the camera preview.
Properties¶
Align Horizontal¶
Number Default: 1 
Read Write - Designer Blocks
A number that encodes how contents of the arrangement are aligned horizontally. The choices are: 1 = left aligned, 2 = right aligned, 3 = horizontally centered. Alignment has no effect if the arrangement's width is automatic.
Align Vertical¶
Number Default: 1 Write - Designer Blocks
Property for AlignVertical
Clickable¶
Boolean Default: False Write - Designer Blocks
Set the surface view component clickable or not clickable.
Detect Faces¶
Boolean Default: False Read Write - Designer Blocks
If enabled you can detect how many faces are in the front of the camera.
Flashlight¶
Boolean Read Write - Blocks
Turn on or off the device flashlight. The function knows automatic if there is a flash/ torch available.
Height¶
Number Read Write - Blocks
Specifies the component's vertical height, measured in pixels.
Height Percent¶
Number Write - Blocks
Specifies the component's vertical height as a percentageof the height of its parent Component.
Save Preview As File¶
Boolean Default: False Write - Designer Blocks
Enable this block to enable the "Got Preview" event to get a image file from the camera preview.
Use Back Camera¶
Boolean Default: True Read Write - Designer Blocks
If enabled you will open the back camera for the camera preview, else you open the front camera. The block detect automatic if there is a device camera available or not.
Visible¶
Boolean Default: True Read Write - Designer Blocks
Returns true iff the component is visible.
Width¶
Number Read Write - Blocks
Specifies the component's horizontal width, measured in pixels.
Width Percent¶
Number Write - Blocks
Specifies the component's horizontal width as a percentageof the Width of its parent Component.