我使用的意图，与本机应用程序打开摄像头：

I'm using an intent to open the camera with the native application:

    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

    Uri photoUri = Uri.fromFile(getOutputPhotoFile());
    intent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);

    startActivityForResult(intent, CAMERA_PHOTO_REQUEST_CODE);

每次被打开（前/后摄像头）摄像头就像上一次出现这种内置相机应用程序是开放的。也就是说，如果我最后一次关闭了内置相机应用程序相机背面是积极的，所以当我启动意图摄像头，背部摄像头将被激活。

Every time the camera that is opened (front/back camera) is like the last time this native camera application was open. Meaning that if the last time I closed the native camera application the back camera was active, so when I launch the intent for camera, the back camera will be active.

我要直接启动前置摄像头的意图。是否有人知道如何做到这一点？

I want to launch directly the front camera with the intent. Does anybody know how to do that?

推荐答案

字谨慎：它是一个黑客

这加入的意图

intent.putExtra("android.intent.extras.CAMERA_FACING", 1);

这个解决方案是不可持续的，它使用相机应用程序的测试code。欲了解更多信息看看的Util类的AOSP相机项目的getCameraFacingIntentExtras静态方法。

This solution isn't sustainable, its using a testing code of the Camera app. For more info look at the "getCameraFacingIntentExtras" static method in Util class of the AOSP Camera project.

更新： 看起来像它在L的停用

Update: Looks like that it was disabled in L