How to preview Camera in Raspberry in Android Things? [closed] - android

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I have installed Android Things in Raspberry 3. I have connected Camera and display. How can I show preview it?

Check the code provided by Google in the dorbell example. Especially the DoorbellCamera class.

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How to turn on or off DND using dart in flutter? [closed]

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I want to turn on and off do not disturb mode in android using flutter.
My Question is :
"Is there any way to achieve it without writing native code (i.e. any package or direct dart code)"

How can I build an Android device with two displays? [closed]

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One of them would be a TV, the other a control display, with the menus. I assume I'd have to hack the Linux display driver?
For quick prototyping of the concept you can use a media center device running Android (or a phone) plus Android Wear as a second screen.

how i generate a pdf with Android [closed]

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I have this problem I'm developing an app and I need that it can generate pdf that it containing information taken from the database and from the same canvas can someone help me?
The answer to your question is simple : use iTextG
This is the Android/GAE port of iText.

How to zoom in display of device for android? [closed]

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I want zoom in display of device itself without rooting.
for example..
like zoom in home screen.
Is this way exist?
This question is inappropriate as it's not a programming question. However what you want is magnification gestures. This was included into Android 4.1 but may not be included by all manufacturers.

Call and Sms in Android [closed]

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I am working on Android SDK, I would like to implement the code for call, sms, mms and data transfer in my application.
checkout these links :
1) http://www.androidsnippets.com/send-sms-via-intent
2) http://www.androidsnippets.com/phone-a-telephone-number-via-intent
3) http://www.androidsnippets.com/send-mms-via-intent
Hope this will help you.

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