[英]RuntimeException when camera is tilted from portrait to landscape
I have a Fragment which uses a CameraPreview
like so: 我有一个使用
CameraPreview
的片段, CameraPreview
所示:
mCamera = getCameraInstance();
mPreview = new CameraPreview(getActivity(), mCamera);
FrameLayout preview = (FrameLayout) rootView.findViewById(R.id.camera_preview);
preview.addView(mPreview);
This works fine - opens up a camera view as intended. 效果很好-可以按预期打开相机视图。 However, when I tilt the camera from portrait to landscape I get a
RuntimeException
但是,当我将照相机从纵向倾斜到横向时,会出现
RuntimeException
java.lang.RuntimeException: Fail to connect to camera service
at android.hardware.Camera.native_setup(Native Method)
at android.hardware.Camera.<init>(Camera.java:413)
at android.hardware.Camera.open(Camera.java:384)
at com.example.sv_laptop03.myApp.CameraPreview.surfaceCreated(CameraPreview.java:36)
at android.view.SurfaceView.updateWindow(SurfaceView.java:610)
at android.view.SurfaceView.access$000(SurfaceView.java:93)
at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:182)
at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:864)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2142)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1249)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6364)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:791)
at android.view.Choreographer.doCallbacks(Choreographer.java:591)
at android.view.Choreographer.doFrame(Choreographer.java:561)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:777)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5419)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
at dalvik.system.NativeStart.main(Native Method)
and it specifically complains about the first line in the else
block of this method: 它专门抱怨此方法的
else
块中的第一行:
public void surfaceCreated(SurfaceHolder holder) {
try {
if(mCamera != null) {
mCamera.setDisplayOrientation(90); // WITHOUT THIS MY CAMERA AXIS' ARE FLIPPED
mCamera.setPreviewDisplay(holder);
mCamera.startPreview();
} else {
mCamera = Camera.open(); // RUNTIME EXCEPTION HERE
mCamera.startPreview();
}
} catch (IOException e) {
Log.d("TAG", "Error setting camera preview: " + e.getMessage());
}
}
I included permissions in AndroidManifest 我在AndroidManifest中包含了权限
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus"/>
Does anybody know what could be causing the crash? 有人知道是什么原因导致车祸吗? It seems to work fine on a Galaxy S6 but crashes on my S3.
它在Galaxy S6上似乎工作正常,但在我的S3上崩溃。 Any help is highly appreciated.
非常感谢您的帮助。
Edit: 编辑:
I added this in my Activity, now the app crashes before the camera loads. 我在“活动”中添加了此内容,现在该应用在加载相机之前崩溃了。
@Override
public void onPause() {
super.onPause();
mCamera.release();
}
@Override
public void onResume() {
super.onResume();
mCamera.open();
}
Have you tried to call release() when you are being destroyed? 您是否曾尝试在销毁文件时调用release()?
From: http://developer.android.com/reference/android/hardware/Camera.html 来自: http : //developer.android.com/reference/android/hardware/Camera.html
Important: Call release() to release the camera for use by other applications. 重要提示:调用release()释放相机以供其他应用程序使用。 Applications should release the camera immediately in onPause() (and re-open() it in onResume()).
应用程序应立即在onPause()中释放相机(并在onResume()中重新打开)。
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