不幸的是，相机已停止答案

【问题标题】：Unfortunately, Camera has stopped不幸的是，相机已停止
【发布时间】：2016-03-13 06:13:49
【问题描述】：

当我启动相机应用程序时，我收到了这个错误，这是我的 logcat。

12-08 12:50:10.393 2275-2369/com.android.launcher3 E/Surface: getSlotFromBufferLocked: unknown buffer: 0xa21675b0
12-08 12:50:10.509 965-3048/? E/CameraService: CameraService::connect X (PID 3209) rejected (invalid camera ID 0)
12-08 12:50:10.510 3209-3224/com.android.camera E/CameraHolder: fail to connect Camera
12-08 12:50:10.510 3209-3224/com.android.camera E/CameraHolder: java.lang.RuntimeException: Fail to connect to camera service
12-08 12:50:10.510 3209-3224/com.android.camera E/CameraHolder:     at android.hardware.Camera.<init>(Camera.java:495)
12-08 12:50:10.510 3209-3224/com.android.camera E/CameraHolder:     at android.hardware.Camera.open(Camera.java:341)
12-08 12:50:10.510 3209-3224/com.android.camera E/CameraHolder:     at com.android.camera.CameraHolder.open(CameraHolder.java:131)
12-08 12:50:10.510 3209-3224/com.android.camera E/CameraHolder:     at com.android.camera.Util.openCamera(Util.java:267)
12-08 12:50:10.510 3209-3224/com.android.camera E/CameraHolder:     at com.android.camera.Camera$3.run(Camera.java:1100)
12-08 12:50:10.510 3209-3224/com.android.camera E/CameraHolder:     at java.lang.Thread.run(Thread.java:818)
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime: FATAL EXCEPTION: Thread-179
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime: Process: com.android.camera, PID: 3209
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime: java.lang.RuntimeException: openCamera failed
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at com.android.camera.Util.openCamera(Util.java:272)
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at com.android.camera.Camera$3.run(Camera.java:1100)
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at java.lang.Thread.run(Thread.java:818)
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:  Caused by: com.android.camera.CameraHardwareException: java.lang.RuntimeException: Fail to connect to camera service
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at com.android.camera.CameraHolder.open(CameraHolder.java:135)
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at com.android.camera.Util.openCamera(Util.java:267)
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at com.android.camera.Camera$3.run(Camera.java:1100) 
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at java.lang.Thread.run(Thread.java:818) 
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:  Caused by: java.lang.RuntimeException: Fail to connect to camera service
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at android.hardware.Camera.<init>(Camera.java:495)
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at android.hardware.Camera.open(Camera.java:341)
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at com.android.camera.CameraHolder.open(CameraHolder.java:131)
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at com.android.camera.Util.openCamera(Util.java:267) 
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at com.android.camera.Camera$3.run(Camera.java:1100) 
12-08 12:50:10.511 3209-3224/com.android.camera E/AndroidRuntime:     at java.lang.Thread.run(Thread.java:818) 
12-08 12:50:10.671 954-954/? E/EGL_emulation: tid 954: eglCreateSyncKHR(1243): error 0x3004 (EGL_BAD_ATTRIBUTE)

这是我的 config.ini

avd.ini.encoding=UTF-8
AvdId=Nexus_S_API_23
abi.type=x86
avd.ini.displayname=Nexus S API 23
disk.dataPartition.size=200M
hw.accelerometer=yes
hw.audioInput=yes
hw.battery=yes
hw.camera.back=webcam0
hw.camera.front=none
hw.cpu.arch=x86
hw.dPad=no
hw.device.hash2=MD5:37a2ff6e511626ba3ceddec8264474be
hw.device.manufacturer=Google
hw.device.name=Nexus S
hw.gps=yes
hw.gpu.enabled=yes
hw.keyboard=yes
hw.lcd.density=240
hw.mainKeys=yes
hw.ramSize=343
hw.sdCard=yes
hw.sensors.orientation=yes
hw.sensors.proximity=yes
hw.trackBall=no
image.sysdir.1=system-images\android-23\google_apis\x86\
runtime.network.latency=none
runtime.network.speed=full
runtime.scalefactor=auto
sdcard.size=100M
skin.dynamic=yes
skin.name=nexus_s
skin.path=C:\Program Files\Android\Android Studio\plugins\android\lib\device-art-resources\nexus_s
snapshot.present=no
tag.display=Google APIs
tag.id=google_apis
vm.heapSize=32

我也遇到了这个错误。

emulator -webcam-list -avd Nexus_S_API_23
emulator: WARNING: Increasing RAM size to 1GB
emulator: ERROR: camera_device_start_capturing: Device 'AndroidEmulatorVC0' is unable to save frame to the clipboard: 0

注意：当我尝试从 Android 浏览器下载图像时遇到错误。

【问题讨论】：

当然，你的模拟器没有摄像头，除非你允许它使用你电脑的摄像头。
有一个选项，在创建模拟器以使用后置摄像头和前置摄像头时，如果您使用的是android studio，那么您应该克隆您的设备，它会让您自定义设备规格，然后您也可以选择相机选项
我已经选择了那个选项
它在我的 Mac 上使用类似的模拟器运行：这是配置文件之间的区别drive.google.com/file/d/0B_3yQOBMz3jvVDJYdWJfaTcybFU/…
你的配置也在我的 MAC 上工作（我不得不删除皮肤。* 元素）

标签： android android-studio android-emulator android-camera

【解决方案1】：

编辑

您尝试过其中一种吗？您的相机服务似乎无法正常工作/相机可能被用于其他应用程序。

Failed to connect to camera service

Use the web camera in the android emulator

顺便说一下，我使用 MacOSX。我只是说，它适用于我的机器。我发送了安装的工具和日志。也许它有帮助。

VD 配置

Nexus 5, API 23 (Both Cameras are selected)

当我启动模拟器时，它会在日志中发出警告，但最终它起作用了。

日志

警告：在连接的摄像头列表中找不到摄像头名称“webcam0”。

12-12 22:59:15.060 2060-2079/com.android.camera V/CameraHolder: open camera 0
12-12 22:59:15.060 1019-1730/? I/CameraService: CameraService::connect call (PID 2060 "com.android.camera", camera ID 0) for HAL version default and Camera API version 1
12-12 22:59:15.060 1019-1730/? V/EmulatedCamera_Camera: getCameraInfo
12-12 22:59:15.060 1019-1730/? V/EmulatedCamera_BaseCamera: getCameraInfo
12-12 22:59:15.060 1019-1730/? W/AudioFlinger: acquireAudioSessionId() unknown client 2060 for session 7
12-12 22:59:15.060 1019-2081/? D/NuPlayerDriver: notifyListener_l(0xf619af80), (1, 0, 0)
12-12 22:59:15.060 1019-1730/? W/AudioFlinger: acquireAudioSessionId() unknown client 2060 for session 8
12-12 22:59:15.070 1019-2083/? D/NuPlayerDriver: notifyListener_l(0xf619afe0), (1, 0, 0)
12-12 22:59:15.070 1019-1730/? I/CameraClient: Opening camera 0
12-12 22:59:15.070 1019-1730/? V/EmulatedCamera_Camera: getCameraInfo
12-12 22:59:15.070 1019-1730/? V/EmulatedCamera_BaseCamera: getCameraInfo
12-12 22:59:15.070 1019-1730/? V/EmulatedCamera_Camera: connectCamera
12-12 22:59:15.070 1019-1730/? V/EmulatedCamera_QemuDevice: connectDevice
12-12 22:59:15.100 2059-2059/? D/AndroidRuntime: Calling main entry com.android.commands.pm.Pm
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_QemuDevice: connectDevice: Connected to device 'webcam0'
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_CallbackNotifier: setCallbacks: 0xf75d1505, 0xf75d1dba, 0xf75d1c92, 0xf75d2267 (0xf619b040)
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_CallbackNotifier: enableMessage: msg_type = 0xc0d
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_CallbackNotifier:     CAMERA_MSG_ERROR
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_CallbackNotifier:     CAMERA_MSG_FOCUS
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_CallbackNotifier:     CAMERA_MSG_ZOOM
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_CallbackNotifier:     CAMERA_MSG_PREVIEW_METADATA
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_CallbackNotifier: **** Currently enabled messages:
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_CallbackNotifier:     CAMERA_MSG_ERROR
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_CallbackNotifier:     CAMERA_MSG_FOCUS
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_CallbackNotifier:     CAMERA_MSG_ZOOM
12-12 22:59:15.110 1019-1730/? V/EmulatedCamera_CallbackNotifier:     CAMERA_MSG_PREVIEW_METADATA
12-12 22:59:15.120 1350-1374/system_process I/ActivityManager: Start proc 2086:com.android.defcontainer/u0a3 for service com.android.defcontainer/.DefaultContainerService
12-12 22:59:15.160 2086-2098/com.android.defcontainer D/DefContainer: Copying /data/local/tmp/com.example.volkangurol.myapplication to base.apk
12-12 22:59:15.210 1449-1449/com.android.systemui D/PhoneStatusBar: disable: < expand ICONS alerts SYSTEM_INFO back home* recent* clock search* quick_settings >
12-12 22:59:15.210 2060-2103/com.android.camera D/Camera: app passed NULL surface
12-12 22:59:15.210 1019-1619/? V/EmulatedCamera_Camera: getCameraInfo
12-12 22:59:15.210 1019-1619/? V/EmulatedCamera_BaseCamera: getCameraInfo
12-12 22:59:15.230 2060-2103/com.android.camera V/camera: Preview size is 640x480
12-12 22:59:15.230 1019-1019/? V/EmulatedCamera_Camera: setParameters
12-12 22:59:15.230 1019-1019/? D/EmulatedCamera_Camera: === Value changed: jpeg-quality: 90 -> 95
12-12 22:59:15.230 1019-1019/? D/EmulatedCamera_Camera: === Value changed: preview-frame-rate: 24 -> 30
12-12 22:59:15.230 1019-1019/? D/EmulatedCamera_Camera: +++ New parameter: recording-hint=false
12-12 22:59:15.230 2060-2103/com.android.camera V/camera: startPreview
12-12 22:59:15.230 1019-1380/? V/EmulatedCamera_Preview: setPreviewWindow: current: 0x0 -> new: 0x0
12-12 22:59:15.230 1019-1380/? V/EmulatedCamera_Camera: doStartPreview
12-12 22:59:15.230 1019-1380/? V/EmulatedCamera_Preview: startPreview
12-12 22:59:15.230 1019-1380/? D/EmulatedCamera_Camera: Starting camera: 640x480 -> NV21(yuv420sp)
12-12 22:59:15.230 1019-1380/? V/EmulatedCamera_QemuDevice: startDevice
12-12 22:59:15.230 1019-1380/? V/EmulatedCamera_Device: commonStartDevice: Allocated 0xf3f00000 460800 bytes for 307200 pixels in NV21[640x480] frame
12-12 22:59:15.230 1019-1380/? V/EmulatedCamera_QemuDevice: startDevice: Qemu camera device 'webcam0' is started for NV21[640x480] frames
12-12 22:59:15.230 1019-1380/? V/EmulatedCamera_Device: startDeliveringFrames
12-12 22:59:15.230 1019-1380/? V/EmulatedCamera_Device: startWorkerThread
12-12 22:59:15.260 1019-2104/? V/EmulatedCamera_Device: Starting emulated camera device worker thread...

【讨论】：

【解决方案2】：

对于 Android API >= 23，您必须在如下代码中请求权限：

int REQUEST_PERMISSION= 100;
int cameraPermission = this.checkSelfPermission(Manifest.permission.CAMERA);
if (android.os.Build.VERSION.SDK_INT >= 23) {
  if (cameraPermission != PackageManager.PERMISSION_GRANTED  ) {


      this.requestPermissions(
            new String[]{Manifest.permission.CAMERA },
            REQUEST_PERMISSION
    );
  }
}

现在可以运行了。

【讨论】：

您还必须在 AndroidManifest.xml 中添加权限。见stackoverflow.com/questions/7829162/…

【解决方案3】：

解决方案很简单：在使用虚拟机时不能运行摄像头，除非将打开 VM 摄像头的操作与打开网络摄像头相关联。

【讨论】：

如何链接它们？在 bluestacks 中，它无需任何额外步骤即可工作

【解决方案4】：

从 API 23 开始，您需要在运行时请求权限。在 API

这是来自 Android 开发者的示例：

检查权限：

// Assume thisActivity is the current activity
int permissionCheck = ContextCompat.checkSelfPermission(thisActivity,
        Manifest.permission.WRITE_CALENDAR);

请求权限：

// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(thisActivity,
                Manifest.permission.READ_CONTACTS)
        != PackageManager.PERMISSION_GRANTED) {

    // Should we show an explanation?
    if (ActivityCompat.shouldShowRequestPermissionRationale(thisActivity,
            Manifest.permission.READ_CONTACTS)) {

        // Show an expanation to the user *asynchronously* -- don't block
        // this thread waiting for the user's response! After the user
        // sees the explanation, try again to request the permission.

    } else {

        // No explanation needed, we can request the permission.

        ActivityCompat.requestPermissions(thisActivity,
                new String[]{Manifest.permission.READ_CONTACTS},
                MY_PERMISSIONS_REQUEST_READ_CONTACTS);

        // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
        // app-defined int constant. The callback method gets the
        // result of the request.
    }
}

请求响应：

@Override
public void onRequestPermissionsResult(int requestCode,
        String permissions[], int[] grantResults) {
    switch (requestCode) {
        case MY_PERMISSIONS_REQUEST_READ_CONTACTS: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0
                && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                // permission was granted, yay! Do the
                // contacts-related task you need to do.



     } else {

            // permission denied, boo! Disable the
            // functionality that depends on this permission.
        }
        return;
    }

    // other 'case' lines to check for other
    // permissions this app might request
}
}

如果您想了解更多信息，可以在 Android 开发人员上查看此链接：

http://developer.android.com/training/permissions/requesting.html

如果你不这样处理，你就不能在 API 上使用相机 >= 23

并非所有权限都需要用户授予，只有危险权限（相机、位置、）：

http://developer.android.com/guide/topics/security/permissions.html#normal-dangerous

【讨论】：

您是否将相机权限添加到清单中？正如拉维哈里所说的那样？您评论说您在该答案上使用的是 Android Studio，但您仍需要将其添加到 Android Studio 中的清单中。
我正在使用 com.android.camera
就是那个包..你知道什么是android manifest吗？切换到Android View然后选择app->manifests->AndroidManifest.xml就可以找到

【解决方案5】：

引用developers.android.com：

从 Android 6.0（API 级别 23）开始，用户授予以下权限应用程序运行时的应用程序，而不是在他们安装应用程序时。这方法简化了应用程序安装过程，因为用户不需要在安装或更新应用程序时授予权限。它也是让用户更好地控制应用程序的功能；例如，用户可以选择让相机应用程序访问相机，但不能到设备位置。用户可以随时撤销权限时间，通过转到应用程序的设置屏幕。

系统权限分为两类，普通权限和危险：

普通权限不会直接危及用户的隐私。如果您的应用在其清单中列出了正常权限，则系统会授予
自动获得许可。

危险的权限可以让应用程序访问用户的机密数据。如果您的应用在其
manifest，系统自动授予权限。如果你列出一个危险的权限，用户必须明确同意
你的应用。

所以，我完成了如下任务：

为了检查权限，我创建了一个单独的类，如下所示：

public class MarshMallowPermission {

    public static final int RECORD_PERMISSION_REQUEST_CODE = 1;
    public static final int EXTERNAL_STORAGE_PERMISSION_REQUEST_CODE = 2;
    public static final int CAMERA_PERMISSION_REQUEST_CODE = 3;
    Activity activity;

    public MarshMallowPermission(Activity activity) {
        this.activity = activity;
    }

    public boolean checkPermissionForRecord(){
        int result = ContextCompat.checkSelfPermission(activity, Manifest.permission.RECORD_AUDIO);
        if (result == PackageManager.PERMISSION_GRANTED){
            return true;
        } else {
            return false;
        }
    }

    public boolean checkPermissionForExternalStorage(){
        int result = ContextCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
        if (result == PackageManager.PERMISSION_GRANTED){
            return true;
        } else {
            return false;
        }
    }

    public boolean checkPermissionForCamera(){
        int result = ContextCompat.checkSelfPermission(activity, Manifest.permission.CAMERA);
        if (result == PackageManager.PERMISSION_GRANTED){
            return true;
        } else {
            return false;
        }
    }

    public void requestPermissionForRecord(){
        if (ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.RECORD_AUDIO)){
           Toast.makeText(activity, "Microphone permission needed for recording. Please allow in App Settings for additional functionality.", Toast.LENGTH_LONG).show();
        } else {
            ActivityCompat.requestPermissions(activity,new String[]{Manifest.permission.RECORD_AUDIO},RECORD_PERMISSION_REQUEST_CODE);
        }
    }

    public void requestPermissionForExternalStorage(){
        if (ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE)){
            Toast.makeText(activity, "External Storage permission needed. Please allow in App Settings for additional functionality.", Toast.LENGTH_LONG).show();
        } else {
            ActivityCompat.requestPermissions(activity,new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},EXTERNAL_STORAGE_PERMISSION_REQUEST_CODE);
        }
    }

    public void requestPermissionForCamera(){
        if (ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.CAMERA)){
            Toast.makeText(activity, "Camera permission needed. Please allow in App Settings for additional functionality.", Toast.LENGTH_LONG).show();
        } else {
            ActivityCompat.requestPermissions(activity,new String[]{Manifest.permission.CAMERA},CAMERA_PERMISSION_REQUEST_CODE);
        }
    }
}

那么，为了得到

...
MarshMallowPermission marshMallowPermission = new MarshMallowPermission(this);
...

public void getPhotoFromCamera() {

    if (!marshMallowPermission.checkPermissionForCamera()) {
        marshMallowPermission.requestPermissionForCamera();
    } else {
        if (!marshMallowPermission.checkPermissionForExternalStorage()) {
            marshMallowPermission.requestPermissionForExternalStorage();
        } else {
            Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            File mediaStorageDir = new File(
                    Environment.getExternalStorageDirectory()
                            + File.separator
                            + getString(R.string.directory_name_corp_chat)
                            + File.separator
                            + getString(R.string.directory_name_images)
            );

            if (!mediaStorageDir.exists()) {
                mediaStorageDir.mkdirs();
            }

            String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss",
                    Locale.getDefault()).format(new Date());
            try {
                mediaFile = File.createTempFile(
                        "IMG_" + timeStamp,  /* prefix */
                        ".jpg",         /* suffix */
                        mediaStorageDir      /* directory */
                );
                takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(mediaFile));
                startActivityForResult(takePictureIntent, PICK_FROM_CAMERA);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

【讨论】：

【解决方案6】：

可能是您的 PC 或 Mac 应该有工作相机或必须安装相机模拟..

【讨论】：

【解决方案7】：

您必须在 AVD 选项中设置您的相机。（默认情况下您可以有 NONE、NONE）

【讨论】：