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Intro to AppInventor

Intro to AppInventor. Dr. Dante Ciolfi ( chawl fee). Overview. Required materials Caveats Creating the HelloPurr app Summary. Required Materials. Hardware: PC, Android smartphone Software ( http :// developer.android.com ) : JRE JDK Android SDK

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Intro to AppInventor

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Presentation Transcript

  1. Intro to AppInventor Dr. Dante Ciolfi (chawl fee)

  2. Overview • Required materials • Caveats • Creating the HelloPurr app • Summary

  3. Required Materials • Hardware: PC, Android smartphone • Software ( http://developer.android.com ): • JRE • JDK • Android SDK • Windows USB driver appropriate for your OS • Miscellaneous: gmail account, internet access ( http://beta.appinventor.mit.edu/ ) • Files: • Image file • Sound file

  4. Caveats • If necessary, you may need to install the Google USB drivers through the following steps: • Remove the ADB/Android interface drivers • Unplug your phone • Adjust your device installation settings: • Start > in the textbox, type: device installation > Choose “Change device installation settings” > Choose “Install driver software from Windows Update if it is not found on my computer” (leave the other default settings) > Save changes

  5. Creating the HelloPurr App: Part 1 of 3 • Download files: kitty picture, meow sound from: http://beta.appinventor.mit.edu/learn/setup/hellopurr/hellopurrphonepart1.html • New > Project name = HelloPurr • Button component • Properties list under image – choose “none” (the default) • Add • Upload kitty.png to project • In components column, click “Button1”; in properties column, set background image to kitty.png

  6. Creating the HelloPurr App: Part 2 of 3 • Delete “Text for Button 1” listed under the Text property • Open Blocks editor and connect it to emulator • (May need to open .jnlp file if browser does not automatically download Java applications) • Wait until “SD card is prepared” in emulator; may have to drag green lock button to right • After couple of min., will see kitty app

  7. Creating the HelloPurr App: Part 3 of 3 • Add label component that reads “Pet the Kitty” (font: 30, orange; bgcolor: blue) • Upload meow.mp3 file • Blocks Editor: create event handler that tells sound component to play when user taps the button • Add sound component that plays meow.mp3 • Palette: Media > Drag out sound component • Media: Add > upload meow.mp3 • Properties: Sound1 component > set source to meow.mp3 • Blocks Editor: My Blocks tab (left side): • Click Button1 • Drag and drop “When Button1 Click do block > editor • Click Sound1 • Drag call Sound1.play block > editor & drop into when Button1.click block (should snap into place with a click) • Click kitty picture on your device; should hear kitty “meow”

  8. Summary • Required materials • Caveats • Creating the HelloPurrapp

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