App Inventor Extensions

Textbox Extension

See the App Inventor Extensions document about how to use an App Inventor Extension.

For questions about this extension or bug reports please start a new thread in the App Inventor community. Thank you.

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Sep 27th, 2017: Version 1: initial version

Sep 28th, 2017: Version 2: parameter component added in AfterTextChanged event

Oct 9th, 2017: Version 3: SetBackgroundImage method added

Oct 21st, 2017: Version 4: GetHighlightColor and SetHighlightColor methods added

Oct 22nd, 2017: Version 5: SetSoftKeyboardIconEnter method and EnterPressed event added

Jul 30th, 2019: Version 6: StopTextChangedListener method added

Feb 22th, 2023: Version 6a: EnterPressed event adjusted for USB keyboards, requested by Pac-Man aka Martin, see also this thread.

Description

Textbox Extension.

Required permission: none
Main sponsor of this extension is Italo. Thank you!

Methods

Return current position of cursor in textbox.

Highlight text.

Return length of textbox.

Set background image.
You can use a relative path or a complete path to the image file. To use a relative path, just prefix the imageFileName with /. For instance /myFile.jpg will set the file /mnt/sdcard/myFile.jpg. If a fileName starts with file:/// you can specify a complete path to the file. To use an image file from the assets, prefix the imageFileName with //..
Sponsor of this method is ghoostiadi. Thank you!

Get Highlight color of textbox.

Set Highlight color of textbox.

Set cursor at a specific position in textbox.

Set cursor at end position in textbox.

Start Text Changed listener.

Start Enter Pressed Listener for a textbox. Not available for multiline textboxes. Thank you Bruger!
Sponsor of this method is Boban. Thank you!
Note: It has been reported, that this listener does not work together with USB keyboards.

Stop Text Changed listener.
Sponsor of this method is Ken. Thank you!

Set Icon for Enter button on soft keyboard for a textbox. Not available for multiline textboxes. Thank you Bruger!
Possible values for icon: DONE, GO, NEXT, PREVIOUS, SEARCH, SEND.
Sponsor of this method is Boban. Thank you!

Events

Event indicating that text of component has been changed.

Event indicating that enter in textbox has been pressed. Not available for multiline textboxes. Thank you Bruger!
Sponsor of this event is Boban. Thank you!

Example Use

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Example Use of SetBackgroundImage method

Example Use of Get/SetHighlightColor methods

Example Use of StartEnterPressedListener, SetSoftKeyboardIconEnter method and EnterPressed event

Terms and Conditions

• Have fun and use this extension in your App Inventor projects! Pura Vida!
• THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
• This is is the only authorized place to download this extension. It is not allowed to host this extension somewhere else and offer it for others to download, be it on another website or market place or similar. The reason is, everybody should be able to have the opportunity to donate something in case you like my work. You are allowed to provide a link to this site, so others can download the extension here. You will find the most up to date version always here including documentation and usage examples. Thank you for your kind understanding.

Download

Download TaifunTextbox extension (aix file)

Download Textbox Test (aia file)
Download Textbox Background Image Test (aia file)
Download Textbox Highlight Color Test (aia file)
Download Textbox Enter Pressed Test (aia file)

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This work by Pura Vida Apps is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License
with attribution (name=Pura Vida Apps and link to the source site) required.