Android Camera setDisplayOrientation Failed

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Hi,

I have a camera preview as part of an application I am developing, the preview is in landscape, so I call

camera.setDisplayOrientation(90);

in the

onResume()

method. I give the user an option to retake the image, so when they go back again, it calls the

onResume()

again. I have tested this on the nexus10 and there are no problems, however, when running it on a device running froyo 2.2, it's a htc handset, the app crashes and I get this

07-26 12:19:43.389: E/AndroidRuntime(2245): FATAL EXCEPTION: main
07-26 12:19:43.389: E/AndroidRuntime(2245): java.lang.RuntimeException: set display orientation failed
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at android.hardware.Camera.setDisplayOrientation(Native Method)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at com.purple.reepfragment.SnapFragment.onResume(SnapFragment.java:114)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at android.support.v4.app.Fragment.performResume(Fragment.java:1503)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:947)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:429)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at android.os.Handler.handleCallback(Handler.java:587)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at android.os.Handler.dispatchMessage(Handler.java:92)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at android.os.Looper.loop(Looper.java:144)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at android.app.ActivityThread.main(ActivityThread.java:4937)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at java.lang.reflect.Method.invokeNative(Native Method)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at java.lang.reflect.Method.invoke(Method.java:521)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
07-26 12:19:43.389: E/AndroidRuntime(2245): 	at dalvik.system.NativeStart.main(Native Method)

I really am struggling to figure out what the problem is as setDisplayOrientation is supported in Froyo...
Would anyone have any ideas or have come across this before??

Posted 26-Jul-13 1:31am

GaryDoo

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ridoy · Accepted Answer · 2013-07-26T02:01:00

Solution 1

Try with your own method like..

Java

    protected void setDisplayOrientation(Camera camera, int angle){
    Method downPolymorphic;
    try
    {
        downPolymorphic = camera.getClass().getMethod("setDisplayOrientation", new Class[] { int.class });
        if (downPolymorphic != null)
            downPolymorphic.invoke(camera, new Object[] { angle });
    }
    catch (Exception e1)
    {
    }
}

And instead of using camera.setDisplayOrientation(x) use setDisplayOrientation(camera, x) like,

Java

if (Integer.parseInt(Build.VERSION.SDK) >= 8)
    setDisplayOrientation(mCamera, 90);
else
{
    if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT)
    {
        p.set("orientation", "portrait");
        p.set("rotation", 90);
    }
    if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE)
    {
        p.set("orientation", "landscape");
        p.set("rotation", 90);
    }
}

Posted 26-Jul-13 2:01am

ridoy

Updated 26-Jul-13 2:02am

v2

Comments

GaryDoo 26-Jul-13 8:13am

p being the camera parameters?

ridoy 26-Jul-13 8:25am

yes

GaryDoo 26-Jul-13 8:28am

thank you ridoy!!! I set p to the camera parameters and it works...thank you, although I had noticed that I have implemented this in the correct sequence whereas with the other method I had not, I had called it after my startpreview....anyway, thank you, it's much appreciated

ridoy 26-Jul-13 8:29am

Glad to help you..:)

GaryDoo 26-Jul-13 8:34am

can I ask you, do you know how to set autofocus on the camera? I have set it so that if the device is running greater than Gingerbread to implement touch to focus, however, I can't get the device to autofocus if lower than that...would you have any ideas?

ridoy 26-Jul-13 8:41am

This will help you..
http://android-er.blogspot.com/2011/01/start-camera-auto-focusing-autofocus.html

GaryDoo 26-Jul-13 8:46am

thanks ridoy, i've checked that out already..I can't seem to get it to work as I already have an autofocuscallback for the touch focus

ridoy 26-Jul-13 8:49am

ok,i have to go outside now,after return to my computer i will try to help you.

GaryDoo 26-Jul-13 9:25am

thank you

GaryDoo 26-Jul-13 10:36am

I finally managed to crack it...thanks for all your help!

ridoy 26-Jul-13 12:24pm

oh,you done it before my receiving.Good,happy Coding :)