Question

我正在使用已弃用的Android相机对象。我在这里读到： https://source.android.com/devices/camera/versioning.html

即使相机对象已被弃用，它仍应适用于Android 5.0+版本。我问这个，因为我发布了一个使用已弃用的相机对象的应用程序，我的朋友们下载了应用程序并且崩溃了。他们报告了错误，我在跟踪堆栈中看到相机甚至无法打开。这个应用程序适用于我的手机，我的手机是5.0+版本。所以也许我没有正确打开相机???或者这些手机可能无法使用已弃用的类。这是打开相机的代码：

@Override
public void onResume() {
    super.onResume();
    if(!StopTouch)//ignore this condition not relevant to the problem
        StartUpCam();
}

private void StartUpCam()
{

        if(faceProc==null)//ignore this as well
            faceProc = FacialProcessing.getInstance();
        camera=Camera.open(getCid()); //crashes here!!! Calls getCid() which is defined below
        camera.setPreviewCallback(this);
        initPreview(width, height);
        startPreview();
        startTimer();
}

private int getCid()
{
    if(cameraFront && findFrontFacingCamera()>0)
        return findFrontFacingCamera();
    return findBackFacingCamera();
}

public static int findBackFacingCamera() {
    int cameraId = -1;
    int numberOfCameras = Camera.getNumberOfCameras();
    for (int i = 0; i < numberOfCameras; i++) {
        CameraInfo info = new CameraInfo();
        Camera.getCameraInfo(i, info);
        if (info.facing == CameraInfo.CAMERA_FACING_BACK) {
            cameraId = i;
            break;
        }
    }
    return cameraId;
}

public static int findFrontFacingCamera() {
    int cameraId = -1;
    int numberOfCameras = Camera.getNumberOfCameras();
    for (int i = 0; i < numberOfCameras; i++) {
        CameraInfo info = new CameraInfo();
        Camera.getCameraInfo(i, info);
        if (info.facing == CameraInfo.CAMERA_FACING_FRONT) {
            cameraId = i;
            break;
        }
    }
    return cameraId;
}

其他人在发布应用时遇到了已弃用的相机类问题？我在这里做错了什么想法？

Answer 1

If you tried to run it in Android Marshmallow you need to ask for permission dynamically rather than just declaring the Camera permission in manifest. Here's a list of permissions which need to be asked dynamically from marshmallow http://developer.android.com/guide/topics/security/permissions.html#normal-dangerous

Answer 2

如果你想删除＆＃34;已弃用＆＃34;在您的应用中，使用camera2检查文档：

API：android.hardware.camera2

android弃用了相机类

2 个答案: