Serious glitches in the camera and RuntimeException in Android

Question

Serious glitches in the camera and RuntimeException in Android

I created several camera apps, and I just released the apps on the Google Play market 3 weeks ago. So far, I get a lot of crash reports, as shown below:

java.lang.RuntimeException in android.hardware.Camera.native_setParameters
REPORTS TOTAL: 2

java.lang.NullPointerException in com.potatotree.autodistance.CameraSurfaceView.surfaceCreated
REPORTS TOTAL: 21

java.lang.RuntimeException in android.hardware.Camera.native_autoFocus
REPORTS TOTAL: 2

java.lang.RuntimeException in android.hardware.Camera.native_setup
REPORTS TOTAL: 12

The total load so far is around 5000. It seems that all exceptions and crashes are related to cameras. Here is the source code and methods of CameraSurfaceView

public class CameraSurfaceView extends SurfaceView implements SurfaceHolder.Callback{ private SurfaceHolder mHolder; private Camera mCamera; private Context context; public CameraSurfaceView(Context c) { super(c); context = c; mHolder = getHolder(); mHolder.addCallback(this); mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } public CameraSurfaceView(Context context, AttributeSet attrs) { super(context, attrs); } public CameraSurfaceView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {} public void surfaceCreated(SurfaceHolder holder) { //once image is ready(captured or load), the surfaceCreated will not trigger camera again when user click on settings mCamera = Camera.open(); try { mCamera.setPreviewDisplay(holder); //may throw exception Parameters parameters = mCamera.getParameters(); if(this.getResources().getConfiguration().orientation != Configuration.ORIENTATION_LANDSCAPE) { parameters.set("orientation", "portrait"); mCamera.setDisplayOrientation(90); } else { parameters.set("orientation", "landscape"); mCamera.setDisplayOrientation(0); } mCamera.setParameters(parameters); mCamera.startPreview(); } catch(Exception e) { mCamera.release(); mCamera = null; e.printStackTrace(); } } public void surfaceDestroyed(SurfaceHolder arg0) { if(mCamera != null) { mCamera.stopPreview(); mCamera.release(); mCamera = null; } } public void startCamera() //resume camera { if(mCamera == null) { mCamera = Camera.open(); try { mCamera.setPreviewDisplay(mHolder); Parameters parameters = mCamera.getParameters(); if(this.getResources().getConfiguration().orientation != Configuration.ORIENTATION_LANDSCAPE) { parameters.set("orientation", "portrait"); mCamera.setDisplayOrientation(90); } else { parameters.set("orientation", "landscape"); mCamera.setDisplayOrientation(0); } mCamera.setParameters(parameters); mCamera.startPreview(); } catch(Exception e) { mCamera.release(); mCamera = null; e.printStackTrace(); } } } public void stopCamera() //pause camera { if(mCamera != null) { mCamera.stopPreview(); mCamera.release(); mCamera = null; } } public void onFlashLight() { mCamera.stopPreview(); Parameters parameters = mCamera.getParameters(); parameters.setFlashMode(Parameters.FLASH_MODE_TORCH); mCamera.setParameters(parameters); mCamera.startPreview(); } public void offFlashLight() { mCamera.stopPreview(); Parameters parameters = mCamera.getParameters(); parameters.setFlashMode(Parameters.FLASH_MODE_OFF); mCamera.setParameters(parameters); mCamera.startPreview(); } public void takePicture() { SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(context); if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_AUTOFOCUS)) { mCamera.autoFocus(new AutoFocusCallback() { public void onAutoFocus(boolean success, Camera camera) { mCamera.takePicture(shutterCallback, rawCallback, jpegCallback); } }); } else { mCamera.takePicture(shutterCallback, rawCallback, jpegCallback); } } public void autoFocus() { if(mCamera != null) mCamera.autoFocus(null); } ShutterCallback shutterCallback = new ShutterCallback() { public void onShutter(){} }; PictureCallback rawCallback = new PictureCallback() { public void onPictureTaken(byte[] data, Camera camera){} }; PictureCallback jpegCallback = new PictureCallback(){ public void onPictureTaken(byte[] data, Camera camera) { //something happens } }; }

Here is the use and use-permission function that I insert in the manifest file

 <uses-feature android:name="android.hardware.camera" android:required="true" /> <uses-permission android:name="android.permission.CAMERA" />

So far I have tested this application on several devices (Samsung Galaxy SII, Galaxy Note, Galaxy Nexus, Galaxy Y, HTC Desire HD, Sony Xperia), and I can not find any problems or malfunctions of the camera when running the application on these devices .

But the problem is that I continue to receive crash reports and email messages from users who told me that the application continues to crash on their unknown device. It really disappoints that there are too many types of Android devices in the world, and I cannot test my applications on each device to find out the root cause of the problem, unless someone can understand what error I made in my source codes.

Here is the stack trace for android.hardware.Camera.native_setParameters "

 java.lang.RuntimeException: setParameters failed at android.hardware.Camera.native_setParameters(Native Method) at android.hardware.Camera.setParameters(Camera.java:1068) at com.potatotree.autodistance.CameraSurfaceView.onFlashLight(CameraSurfaceView.java:168) at com.potatotree.autodistance.AutoDistanceActivity.startCameraFlash(AutoDistanceActivity.java:224) at com.potatotree.autodistance.CustomView.onTouchEvent(CustomView.java:876) at android.view.View.dispatchTouchEvent(View.java:3885) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:869) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:869) at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1779) at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1130) at android.app.Activity.dispatchTouchEvent(Activity.java:2096) at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1763) at android.view.ViewRoot.deliverPointerEvent(ViewRoot.java:2196) at android.view.ViewRoot.handleMessage(ViewRoot.java:1880) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:123) at android.app.ActivityThread.main(ActivityThread.java:3703) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:507) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622) at dalvik.system.NativeStart.main(Native Method)

Here is the stack trace for com.potatotree.autodistance.CameraSurfaceView.surfaceCreated "

 java.lang.NullPointerException at com.potatotree.autodistance.CameraSurfaceView.surfaceCreated(CameraSurfaceView.java:97) at android.view.SurfaceView.updateWindow(SurfaceView.java:1108) at android.view.SurfaceView.access$000(SurfaceView.java:87) at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:183) at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:590) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1621) at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2446) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4424) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) at dalvik.system.NativeStart.main(Native Method)

Here is the stack trace for android.hardware.Camera.native_autoFocus "

 java.lang.RuntimeException: autoFocus failed at android.hardware.Camera.native_autoFocus(Native Method) at android.hardware.Camera.autoFocus(Camera.java:832) at com.potatotree.autodistance.CameraSurfaceView.autoFocus(CameraSurfaceView.java:212) at com.potatotree.autodistance.AutoDistanceActivity.startCameraFocus(AutoDistanceActivity.java:235) at com.potatotree.autodistance.CustomView.onTouchEvent(CustomView.java:880) at android.view.View.dispatchTouchEvent(View.java:5604) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2060) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1787) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2060) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1787) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2060) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1787) at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1917) at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1376) at android.app.Activity.dispatchTouchEvent(Activity.java:2364) at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1865) at android.view.View.dispatchPointerEvent(View.java:5784) at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:2890) at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2466) at android.view.ViewRootImpl.processInputEvents(ViewRootImpl.java:845) at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2475) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4441) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590) at dalvik.system.NativeStart.main(Native Method)

Here is the stack trace for android.hardware.Camera.native_setup "

 java.lang.RuntimeException: Fail to connect to camera service at android.hardware.Camera.native_setup(Native Method) at android.hardware.Camera.<init>(Camera.java:294) at android.hardware.Camera.open(Camera.java:269) at com.potatotree.autodistance.CameraSurfaceView.surfaceCreated(CameraSurfaceView.java:72) at android.view.SurfaceView.updateWindow(SurfaceView.java:552) at android.view.SurfaceView.dispatchDraw(SurfaceView.java:350) at android.view.ViewGroup.drawChild(ViewGroup.java:1644) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373) at android.view.View.draw(View.java:6994) at android.widget.FrameLayout.draw(FrameLayout.java:357) at android.view.ViewGroup.drawChild(ViewGroup.java:1646) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373) at android.view.View.draw(View.java:6994) at android.widget.FrameLayout.draw(FrameLayout.java:357) at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1896) at android.view.ViewRoot.draw(ViewRoot.java:1527) at android.view.ViewRoot.performTraversals(ViewRoot.java:1263) at android.view.ViewRoot.handleMessage(ViewRoot.java:1864) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:130) at android.app.ActivityThread.main(ActivityThread.java:3735) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:507) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:662) at dalvik.system.NativeStart.main(Native Method)