I want to draw some thing on the view which we get when our camera is on in android mobile.
I do not want to take picture nor record video just that view from camera and then draw some thing on screen.
Drawing on screen will not be and issue but when we turn on camera which view we get and how can we use that view in our application?
You'll want to check androids camera-API.
You can get the preview to display in a SurfaceView or your own View-subclass, which can then be used to draw on. Some more knowledge might be found here.
You can use a RelativeLayout to put other views aligned with the surfaceView used for camera preview
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I want overlay an image in live camera preview using surface view. There are lot of tutorial in this case and my program run perfectly. Now i want add ability to move overlay image in live camera preview with touch event. I can't find any code or tutorial that explain that. Can somebody help me please?
if you do not use OpenGL and just float your overlay with opacity over surfaceView, you can set your own onDragListener() that handles android DragEvent( http://developer.android.com/reference/android/view/DragEvent.html) that can move the overlay detecting user's finger
I want to run android camera preview with a 640x480 resolution but display just 480x360. Right now I'm getting a stretched preview, even though I've tried to put the surface view in a frame layout or srollview. Can anyone tell me how this can be done?
A similar question has been asked before: How to crop camera preview?, but nobody answered.
Thanks
This can be achieved by using TextureView for camera preview. See https://developer.android.com/reference/android/view/TextureView.html.
Unlike SurfaceView, TextureView does not create a separate window but behaves as a regular View. This key difference allows a TextureView to be moved, transformed, animated, etc. For instance, you can make a TextureView semi-translucent by calling myView.setAlpha(0.5f).
So, I'm trying to create a Augmented reality app on android (client/server).
My question is if i can overlay images and text boxes over the camera in real time or only if i have the capture to display it on the screen and add the extra information
If the first version can be implemented can someone help me with some starting code or links with suggestions
I did something similar for one of my apps,
And the way i did it is by placing an empty View on top of camera surfaceView using FrameLayout, then used onDraw method in the View class, to play with canvas and put anything i wanted on top of the camera view, you can practically do everything with Canvas, and since literally your view is overlaying the camera surfaceView, will do exactly the trick you are trying to accomplish here...
Regards!
Is it possible to draw the camera in just a portion of the SurfaceView?
or draw different things on the same SurfaceView?
What do you want to achieve by that? You cannot send the camera preview to a portion of a SurfaceView, but you can adjust the size of this View, and put other views around it or even on top of it. The latter is an alternative to drawing different things on the same SurfaceView.
I want to make an application that shows a camera preview on a surface view. the SurfaceView fills the screen, but I want to show the preview only on a certain position of the screen, in a smaller square. I want to draw other things later on the surfaceview too, around the preview. My problem is that the preview fills the whole surfaceview. Is there a way to resolve this problem? I read that I can't use more than one SurfaceView at the same time to separate the preview and the drawing.
Thank you for your help!