在Android 4.2.2（API等级17）上失败的Android相机

Question

我正在尝试使用相机，但无法启动。 hw.camera.back：Webcam（）hw.camera.front：webcam（）不知道还有什么要补充的，因为我无法剪切和粘贴细节。

我得到的错误是Unfortunatley，相机已停止。

我的代码如下，但它不是我的代码。当我尝试使用相机而无法使用编程时，我得到相同的错误。

Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
     startActivityForResult(takePictureIntent, actionCode); 

在LogCat中我有以下几点。 我在LogCat中看到的一个我不明白的错误是用我没有使用的电子邮件处理，我甚至不知道如何打开或关闭它。 D/ExchangeService（617）：!!!未找到电子邮件应用停止自我

03-05 19:39:12.716: I/Choreographer(409): Skipped 90 frames! The application may be doing too much work on its main thread. 
03-05 19:39:12.736: D/dalvikvm(818): GC_FOR_ALLOC freed 20K, 7% free 3675K/3936K, paused 59ms, total 66ms 
03-05 19:39:12.875: D/dalvikvm(818): GC_FOR_ALLOC freed 5K, 7% free 4013K/4276K, paused 61ms, total 64ms 
03-05 19:39:13.056: D/Camera(818): app passed NULL surface 
03-05 19:39:13.076: V/EmulatedCamera_Camera(40): getCameraInfo 
03-05 19:39:13.076: V/EmulatedCamera_BaseCamera(40): getCameraInfo 
03-05 19:39:13.203: D/dalvikvm(818): GC_CONCURRENT freed 73K, 5% free 4429K/4656K, paused 12ms+55ms, total 197ms 
03-05 19:39:13.203: V/camera(818): Preview size is 640x480 
03-05 19:39:13.243: V/EmulatedCamera_Camera(40): setParameters 
03-05 19:39:13.263: V/camera(818): startPreview 
03-05 19:39:13.263: V/EmulatedCamera_Preview(40): setPreviewWindow: current: 0x0 -> new: 0x0 
03-05 19:39:13.263: V/EmulatedCamera_Camera(40): doStartPreview 
03-05 19:39:13.263: V/EmulatedCamera_Preview(40): startPreview 
03-05 19:39:13.263: D/EmulatedCamera_Camera(40): Starting camera: 640x480 -> NV21(yuv420sp) 
03-05 19:39:13.263: V/EmulatedCamera_QemuDevice(40): startDevice 
03-05 19:39:13.276: V/EmulatedCamera_Device(40): commonStartDevice: Allocated 0x41c42008 460800 bytes for 307200 pixels in NV21[640x480] frame 
03-05 19:39:15.273: D/dalvikvm(818): GC_FOR_ALLOC freed 49K, 4% free 4605K/4776K, paused 44ms, total 46ms 
03-05 19:39:15.293: I/dalvikvm-heap(818): Grow heap (frag case) to 5.684MB for 1127536-byte allocation 
03-05 19:39:15.293: E/EmulatedCamera_QemuClient(40): queryStart: Query failed: Cannot start the camera 
03-05 19:39:15.313: E/EmulatedCamera_QemuDevice(40): startDevice: Unable to start device 'AndroidEmulatorVC0' for NV21[640x480] frames 
03-05 19:39:15.313: V/EmulatedCamera_Preview(40): stopPreview 
03-05 19:39:15.378: D/dalvikvm(818): GC_FOR_ALLOC freed 1K, 3% free 5704K/5880K, paused 85ms, total 85ms 
03-05 19:39:15.383: V/EmulatedCamera_CallbackNotifier(40): disableMessage: msg_type = 0x10 
03-05 19:39:15.383: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_PREVIEW_FRAME 
03-05 19:39:15.383: V/EmulatedCamera_CallbackNotifier(40): **** Currently enabled messages: 
03-05 19:39:15.383: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_ERROR 
03-05 19:39:15.383: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_FOCUS 
03-05 19:39:15.383: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_ZOOM 
03-05 19:39:15.383: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_PREVIEW_METADATA 
03-05 19:39:15.393: V/EmulatedCamera_Camera(40): doStopPreview 
03-05 19:39:15.393: V/EmulatedCamera_CallbackNotifier(40): disableMessage: msg_type = 0x10 
03-05 19:39:15.393: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_PREVIEW_FRAME 
03-05 19:39:15.393: V/EmulatedCamera_CallbackNotifier(40): **** Currently enabled messages: 
03-05 19:39:15.393: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_ERROR 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_FOCUS 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_ZOOM 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_PREVIEW_METADATA 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40): disableMessage: msg_type = 0xffff 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_ERROR 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_SHUTTER 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_FOCUS 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_ZOOM 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_PREVIEW_FRAME 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_VIDEO_FRAME 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_POSTVIEW_FRAME 
03-05 19:39:15.403: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_RAW_IMAGE 
03-05 19:39:15.413: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_COMPRESSED_IMAGE 
03-05 19:39:15.413: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_RAW_IMAGE_NOTIFY 
03-05 19:39:15.413: V/EmulatedCamera_CallbackNotifier(40):  CAMERA_MSG_PREVIEW_METADATA 
03-05 19:39:15.413: V/EmulatedCamera_CallbackNotifier(40): **** Currently enabled messages: 
03-05 19:39:15.413: V/EmulatedCamera_Camera(40): doStopPreview 
03-05 19:39:15.413: V/EmulatedCamera_Camera(40): cancelPicture 
03-05 19:39:15.413: V/EmulatedCamera_Camera(40): releaseCamera 
03-05 19:39:15.413: V/EmulatedCamera_Camera(40): doStopPreview 
03-05 19:39:15.423: V/EmulatedCamera_QemuDevice(40): disconnectDevice 
03-05 19:39:15.423: V/EmulatedCamera_QemuDevice(40): disconnectDevice: Disonnected from device 'AndroidEmulatorVC0' 
03-05 19:39:15.423: I/CameraClient(40): Destroying camera 0 
03-05 19:39:15.423: V/EmulatedCamera_Camera(40): closeCamera 
03-05 19:39:15.423: V/EmulatedCamera_Camera(40): doStopPreview 
03-05 19:39:15.443: W/dalvikvm(818): threadid=11: thread exiting with uncaught exception (group=0x40a71930) 
03-05 19:39:15.483: E/AndroidRuntime(818): FATAL EXCEPTION: Thread-67 
03-05 19:39:15.483: E/AndroidRuntime(818): java.lang.RuntimeException: startPreview failed 
03-05 19:39:15.483: E/AndroidRuntime(818): at com.android.camera.Camera.startPreview(Camera.java:1867) 
03-05 19:39:15.483: E/AndroidRuntime(818): at com.android.camera.Camera.access$3100(Camera.java:87) 
03-05 19:39:15.483: E/AndroidRuntime(818): at com.android.camera.Camera$5.run(Camera.java:1112) 
03-05 19:39:15.483: E/AndroidRuntime(818): at java.lang.Thread.run(Thread.java:856) 
03-05 19:39:15.483: E/AndroidRuntime(818): Caused by: java.lang.RuntimeException: startPreview failed 
03-05 19:39:15.483: E/AndroidRuntime(818): at android.hardware.Camera.startPreview(Native Method) 
03-05 19:39:15.483: E/AndroidRuntime(818): at com.android.camera.Camera.startPreview(Camera.java:1864) 
03-05 19:39:15.483: E/AndroidRuntime(818): ... 3 more 
03-05 19:39:15.513: W/AudioFlinger(40): session id 7 not found for pid 40 
03-05 19:39:15.523: W/AudioFlinger(40): session id 8 not found for pid 40 
03-05 19:39:15.553: W/ActivityManager(291): Force finishing activity com.android.camera/.Camera 
03-05 19:39:15.772: D/dalvikvm(818): GC_CONCURRENT freed 25K, 3% free 5706K/5880K, paused 67ms+25ms, total 398ms 
03-05 19:39:16.013: D/dalvikvm(291): GC_FOR_ALLOC freed 1373K, 27% free 8210K/11196K, paused 132ms, total 140ms 
03-05 19:39:16.363: E/SurfaceFlinger(37): ro.sf.lcd_density must be defined as a build property 
03-05 19:39:16.610: W/ActivityManager(291): Activity pause timeout for ActivityRecord{410f2198 u0 com.android.camera/.Camera} 
03-05 19:39:16.813: E/SurfaceFlinger(37): ro.sf.lcd_density must be defined as a build property 
03-05 19:39:16.873: W/EGL_emulation(409): eglSurfaceAttrib not implemented 
03-05 19:39:29.058: W/ActivityManager(291): Activity destroy timeout for ActivityRecord{410f2198 u0 com.android.camera/.Camera} 
03-05 19:39:54.407: D/ExchangeService(617): Received deviceId from Email app: null 
03-05 19:39:54.407: D/ExchangeService(617): !!! deviceId unknown; stopping self and retrying 
03-05 19:39:59.483: D/ExchangeService(617): !!! EAS ExchangeService, onCreate 
03-05 19:39:59.483: D/ExchangeService(617): !!! EAS ExchangeService, onStartCommand, startingUp = false, running = false 
03-05 19:39:59.543: D/ExchangeService(617): !!! EAS ExchangeService, onStartCommand, startingUp = true, running = false 
03-05 19:39:59.593: W/ActivityManager(291): Unable to start service Intent { act=com.android.email.ACCOUNT_INTENT } U=0: not found 
03-05 19:39:59.593: D/ExchangeService(617): !!! Email application not found; stopping self 
03-05 19:39:59.643: W/ActivityManager(291): Unable to start service Intent { act=com.android.email.ACCOUNT_INTENT } U=0: not found 
03-05 19:39:59.663: E/ActivityThread(617): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d43240 that was originally bound here 
03-05 19:39:59.663: E/ActivityThread(617): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d43240 that was originally bound here 
03-05 19:39:59.663: E/ActivityThread(617): at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969) 
03-05 19:39:59.663: E/ActivityThread(617): at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863) 
03-05 19:39:59.663: E/ActivityThread(617): at android.app.ContextImpl.bindService(ContextImpl.java:1418) 

Answer 1

我刚刚测试这对我的身体Samsung Galaxy Nexus running 4.2.2和运行完美。 （最初我以为我只有4.2但我测试过4.2.2）

我也测试了在macbook pro上运行完美的模拟器上运行。我正在使用仿真器目标："Google APIs (Google Inc) - API Level 17 (4.2.2)"。

您必须确保您在AndroidManifest.xml中拥有以下权限。

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

这将授予许可使用摄像头，支持自动对焦和写入存储

这里的代码来启动相机

Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
startActivityForResult(takePictureIntent); 

“111”可以与任何固定的使用，以取代确定结果回调函数中的活动。

1）如果你已经有权限，我建议你进入Android Virtual Device Manager并从头创建一个新的AVD。

• 设备= Galaxy Nexus的
• 目标=谷歌的API（谷歌公司） - API等级17（4.2.2）
• 硬件键盘当前
• 前置摄像头 - 网络摄像头
• 后置摄像头 - 网络摄像头

SD卡尺寸= 200MB。并尝试使用和不使用主机GPU。

2）接下来检查你的摄像头。你确定你使用的机器有摄像头及其功能吗？当然，如果摄像头不工作或没有安装，这将打破事情。此外，您的机器上的驱动程序可能会有AVD问题。否则，您可以尝试使用两者的“模拟”选项，它们基本上只显示测试/移动图像。

如果所有这些仍然有问题，那么它必须是与你有这个intent startActivity内的代码的东西。你应该尝试开始一个新的清洁项目，把代码放在那里开始活动，修改我展示的AndroidManifest.xml as并从那里开始。您也可以尝试在另一台计算机上运行，​​因为可能是您的计算机上的网络摄像头（如果有的话，驱动程序冲突）。我测试在MacBook Pro上和工作100％

我希望能帮助你