Taifun November 3, , pm 4. Boban November 3, , pm 5. Taifun November 4, , am 8. Taifun November 4, , am 9. Anyone can help me. You can define a start text, which will be passed to your app in method 'get plain start text' and trigger some action after your app is started.
Also of course works if your app is not running. You also can define several alarms, just use a different id for each alarm. Barometer Sensor Extension to get the current pressure and altitude. Battery Manager Extension to provide battery information. Camera Extension to take pictures programmatically without user interaction.
File Extension is an extension related to the File component. Headset Plug Status Extension to get the headset plug status. Image Extension to do some basic image manipulation.
Image Metadata Extension to read the metadata of an image file. Light Sensor Extension to get the illuminance. Location Service Extension. This extension is able to run in the background while your app is closed and stores location data latitude, longitude and optionally current datetime, altitude, accuracy, speed, current address and provider in TinyDB.
Also a background web functionality is available which can be used to send the location data to a web service of your choice using a POST request. This could be used for example to store the location data in a MySQL database or to send an email after a location change was detected while the app is not running.
A notifier will be displayed while the location service is running in the background. Math Extension to parse a mathematical expression. Simple Notification Extension to send a notification.
Notification Listener Extension to listen to all notifications of your device. This service runs in the backround also if your app is closed. It will listen to all notifications and stores them in TinyDB aka shared preferences.
Explore, create and share new functionality through App Inventor Extensions. Try App Inventor Extensions ». Toggle navigation. Home Directory Documentation. Name Description Author Download. Ethan Hon VectorArithmetic. Download this demo. Exclusive or for boolean: returns true only when inputs differ one is true, the other is false. Exclusive or for hex strings, returns hex result. Strings must have the same length.
Returns true, if string matches a regular expression, else false. Sponsor of this method is RuralAccent. As long as this window is visible to the user, keep the device's screen turned on and bright.
Note: If the screen of the device is on, this will obviously drain battery of your device! Please use this method wisely! You might want to use this method together with the Settings extension to adjust the brightness of the screen. Sponsor of this method is Joerg. Calling this method will cancel the KeepScreenOn flag. Event indicating that the state of the activity changed. Possible values are pause , stop and resume. See also the activity lifecycle.
Unfortunately it seems to be not possible to catch the 'onDestroy' activity state Drawing something onto the canvas. Clicking the button to save and refresh. Opening the Gallery and the drawn image is there. Use the Matches block to do some data validation, for example check for valid MAC addresses, or valid email addresses, endless possibilities What are Regular Expressions? You can use an online regex validator, for example regex Up to now we had to use workarounds to prevent the device from sleeping.
Now this is not necessary anymore! Q1 : My question is whether it is possible to decrypt a text which is encrypted with this extension? A : There is a fundamental difference between Hashing and Encryption algorithms, see this stackoverflow answer : Hashing is one way.
Encryption is 2 way - you can decrypt again the encrypted string if you have the key with you. Also take a look at the other answers, which explain the differences a bit more.
So the answer is "no", because this is Hashing and not Encryption, but you can use my AES extension to encrypt and decrypt.
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