Android Question [Q] Advanced Camera Library issues with setting parameters.

Tyler

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Hi, every time I attempt to change a parameter with ACL(such as max fps range, front or back cam, etc.), It returns a bunch of errors.



B4X: 
java.lang.RuntimeException: Fail to connect to camera service
    at android.hardware.Camera.native_setup(Native Method)
    at android.hardware.Camera.<init>(Camera.java:373)
    at android.hardware.Camera.open(Camera.java:328)

ETC................................



Any help with this would be greatly appreciated, I'm having a rather tough time with ACL.
 
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Tyler

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Erel said:
Have you tried to use CameraEx?
Click to expand...

Didn't realize reflector was its own library. Now I'm stuck on setting and getting parameters, where can I find a list of keys for each parameter? Or are they just the ones in the format of
PREVIEW_FPS_MAX_INDEX. ?



B4X: 
cam.GetParameter("PREVIEW_FPS_MAX_INDEX")

OR

cam.SetFocusMode("fixed")
cam.CommitParameters

OR

cam.SetParameter("ANTIBANDING_AUTO", "auto")
cam.CommitParameters

This as well as a few others return this error as well as others that are similar:

B4X: 
(Exception) java.lang.Exception:  java.lang.RuntimeException: setParameters failed
Error occurred on line: 142 (cameraex)
java.lang.RuntimeException: setParameters failed
    at android.hardware.Camera.native_setParameters(Native Method)
    at android.hardware.Camera.setParameters(Camera.java:1695)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at anywheresoftware.b4a.agraham.reflection.Reflection.runmethod(Reflection.java:216)
    at anywheresoftware.b4a.agraham.reflection.Reflection.RunMethod4(Reflection.java:857)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at anywheresoftware.b4a.shell.Shell.runVoidMethod(Shell.java:519)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:235)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:174)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:93)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:161)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:157)
    at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:66)
    at android.view.View.performClick(View.java:4445)
    at android.view.View$PerformClick.run(View.java:18446)
    at android.os.Handler.handleCallback(Handler.java:733)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:136)
    at android.app.ActivityThread.main(ActivityThread.java:5144)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:611)
    at dalvik.system.NativeStart.main(Native Method)
(Exception) java.lang.Exception:  java.lang.RuntimeException: setParameters failed
** Activity (main) Pause, UserClosed = true **



Lastly, I'd like to get the max FPS range but I'm not sure how to do that with CameraEX Class.

And Also, I'm having an issue where I do activity.RemoveAllViews, activity.LoadLayout("cam") to effectively reload everything, but the 3 buttons I have in "cam" show but don't work :S



Sorry for such an un-organised post
 
Last edited:
Upvote 0

Erel

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And Also, I'm having an issue where I do activity.RemoveAllViews, activity.LoadLayout("cam") to effectively reload everything, but the 3 buttons I have in "cam" show but don't work :S
Click to expand...
Have you tried the CameraEx example? You don't need to do anything special to "reload everything".

Use GetSupportedPreviewFpsRange to find the supported values. Same is true for focus: GetSupportedFocusModes.
 
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Tyler

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Longtime User
Would you be able to provide some examples of setting the fps range and also of using .SetParameter? To much surprise, Google searches aren't turning up what I need. Also, does CamEx support changing the antibanding? There's also no SetFocusMode( I think it was focus, I can't check at the moment.), only SetColorMode and one other if memory serves.


Thanks again for helping me out
 
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