发生Camera.release（）错误Camera预览在android上使用TextureView

我使用textureview，预览相机屏幕

在我的应用程序中时，请调用其他应用程序

在surfacetexturedestoryed上调用

@Override
public boolean onSurfaceTextureDestryed(SurfaceTexture surfaceTexture) {
  mCamera.stopPreview();
  mCamera.release();
}

如果有其他应用程序，请调用我的应用程序

发生运行时异常
调用Camera.release（）后，正在使用摄影机

FATAL EXCEPTION: main
      java.lang.RuntimeException: Camera is being used after Camera.release() was called
          at android.hardware.Camera.setPreviewTexture(Native Method)
          at kr.co.iosystem.blackeyeonandroid.video.CameraTextureView.onSurfaceTextureAvailable(CameraTextureView.java:83)
          at android.view.TextureView.getHardwareLayer(TextureView.java:368)
          at android.view.View.updateDisplayListIfDirty(View.java:15157)
          at android.view.View.draw(View.java:15954)
          at android.view.ViewGroup.drawChild(ViewGroup.java:3609)
          at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3399)
          at android.view.View.draw(View.java:16187)
          at android.view.View.updateDisplayListIfDirty(View.java:15180)
          at android.view.View.draw(View.java:15954)
          at android.view.ViewGroup.drawChild(ViewGroup.java:3609)
          at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3399)
          at android.view.View.updateDisplayListIfDirty(View.java:15175)
          at android.view.View.draw(View.java:15954)
          at android.view.ViewGroup.drawChild(ViewGroup.java:3609)
          at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3399)
          at android.view.View.draw(View.java:16187)
          at android.view.View.updateDisplayListIfDirty(View.java:15180)
          at android.view.View.draw(View.java:15954)
          at android.view.ViewGroup.drawChild(ViewGroup.java:3609)
          at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3399)
          at android.view.View.updateDisplayListIfDirty(View.java:15175)
          at android.view.View.draw(View.java:15954)
          at android.view.ViewGroup.drawChild(ViewGroup.java:3609)
          at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3399)
          at android.view.View.updateDisplayListIfDirty(View.java:15175)
          at android.view.View.draw(View.java:15954)
          at android.view.ViewGroup.drawChild(ViewGroup.java:3609)
          at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3399)
          at android.view.View.draw(View.java:16187)
          at com.android.internal.policy.PhoneWindow$DecorView.draw(PhoneWindow.java:2690)
          at android.view.View.updateDisplayListIfDirty(View.java:15180)
          at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:282)
          at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:288)
          at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:323)
          at android.view.ViewRootImpl.draw(ViewRootImpl.java:2609)
          at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2428)
          at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2061)
          at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107)
          at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6007)
          at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
          at android.view.Choreographer.doCallbacks(Choreographer.java:670)
          at android.view.Choreographer.doFrame(Choreographer.java:606)
          at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
          at android.os.Handler.handleCallback(Handler.java:739)
          at android.os.Handler.dispatchMessage(Handler.java:95)
          at android.os.Looper.loop(Looper.java:148)
          at android.app.ActivityThread.main(ActivityThread.java:5415)
          at java.lang.reflect.Method.invoke(Native Method)
          at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:745)
          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:635)

如果删除

mCamera.release（）

，则不会发生运行时异常。 但是我应该添加

mCamera.release（）

如何处理此错误

@Override
public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) {
  try {
      mCamera.setPreviewTexture(surfaceTexture);  //error
      mCamera.startPreview();
   } catch (IOException e) {
      mCamera.release();
      mCamera = null;
      e.printStackTrace();
   }
}

---

在处理程序内使用摄影机停止预览和释放。这样，在您的活动被破坏后，摄像头不会立即停止。它将在后台停止

请显示您的源代码。“onSurfaceTextureAvailable（CamerateTextReview.java:83）”@JoeMizuno请在onSurfaceTextureAvailable尝试块中检查我的updateHandle运行时异常，或者在setPreviewTexture之前检查mCamera是否处于活动状态。