1.6 到 2.1 CameraInfo 的替代品？
android.Camera.Preferences.setRotation 文档
public void onOrientationChanged(int orientation) {
if (orientation == ORIENTATION_UNKNOWN) return;
android.hardware.Camera.CameraInfo info =
new android.hardware.Camera.CameraInfo();
android.hardware.Camera.getCameraInfo(cameraId, info);
orientation = (orientation + 45) / 90 * 90;
int rotation = 0;
if (info.facing == CameraInfo.CAMERA_FACING_FRONT) {
rotation = (info.orientation - orientation + 360) % 360;
} else { // back-facing camera
rotation = (info.orientation + orientation) % 360;
}
mParameters.setRotation(rotation);
}
在 API 级别 5（或更好，甚至是 4）中是否有 Camera.CameraInfo 的替代方案？我正在尝试设置捕获图像的旋转，但不知道如何获取设备相机的方向。 API 9 级之前所有相机的方向都是固定的还是什么？
android.Camera.Preferences.setRotation documentation
public void onOrientationChanged(int orientation) {
if (orientation == ORIENTATION_UNKNOWN) return;
android.hardware.Camera.CameraInfo info =
new android.hardware.Camera.CameraInfo();
android.hardware.Camera.getCameraInfo(cameraId, info);
orientation = (orientation + 45) / 90 * 90;
int rotation = 0;
if (info.facing == CameraInfo.CAMERA_FACING_FRONT) {
rotation = (info.orientation - orientation + 360) % 360;
} else { // back-facing camera
rotation = (info.orientation + orientation) % 360;
}
mParameters.setRotation(rotation);
}
is there an alternative to Camera.CameraInfo in API level 5 (or better yet even 4)? I am trying to set the rotation of the captured image and I cannot figure out how to get the orientation of the device's camera. pre API level 9 was all camera's orientation fixed or something?
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不，目前 Android 平台上的相机方向确实很混乱。
即使您在我的应用程序中通过相机信息获得的方向并不总是正确的（至少对我来说），我让用户选择是否要使用应用程序设置中的参数旋转相机
No the camera orientation is at the current status a real mess on Android platform.
Even the orientation you get with the camera info is not always the right one (at least for me) in my app i'm letting the user choose if he wants to rotate the camera with a parameter in the settings of the app