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【DreamCamera2】相机应用修改成横屏后常见问题解决方案

news 2025/8/31 5:16:35

首先要注意的是，展锐平台的相机应用DreamCamera2是基于竖屏手机设备开发的，未作横屏适配，非必要不建议把相机应用改为横屏，修改成横屏会导致mode的UI错位、部分功能无法使用、预览方向和成像方向不匹配等等许多问题。

根据不同项目需求可能会出现不同的问题，本faq旨在介绍如何将相机应用改为横屏，以及提供一些常见问题的解决方案。以Andorid10 8541E为例

修改成横屏
修改文件vendor\sprd\platform\packages\apps\DreamCamera2\Androidmanifest.xml，把android:screenOrientation的值"portrait"统统替换为"landscape"

修改ui角度
修改相机左下角缩略图旋转角度
修改文件vendor\sprd\platform\packages\apps\DreamCamera2\src\com\android\camera\widget\RoundedThumbnailView.java

@Overridepublic void setOrientation(int degree, boolean animation) {mEnableAnimation = animation;// make sure in the range of [0, 359]degree = degree >= 0 ? degree % 360 : degree % 360 + 360;
+       degree += 90;

修改左滑显示的modelist列表图标角度
修改文件：vendor\sprd\platform\packages\apps\DreamCamera2\src\com\android\camera\ui\ModeSelectorItem.java

@Overridepublic void setOrientation(int degree, boolean animation) {Log.e(TAG, " setOrientation mCurrentDegree = " + degree);mEnableAnimation = animation;// make sure in the range of [0, 359]degree = degree >= 0 ? degree % 360 : degree % 360 + 360;
+       degree += 90;if (degree == mTargetDegree)

修改相机顶部ui图标旋转角度
修改文件vendor\sprd\platform\packages\apps\DreamCamera2\src\com\android\camera\ui\RotateImageButton.java

 @Overridepublic void setOrientation(int degree, boolean animation) {mEnableAnimation = animation;// make sure in the range of [0, 359]degree = degree >= 0 ? degree % 360 : degree % 360 + 360;
+       degree = degree + 90;if (degree == mTargetDegree)return;

修改相机拍照按钮旋转角度
vendor\sprd\platform\packages\apps\DreamCamera2\src\com\android\camera\ui\RotateImageView.java

    public void setOrientation(int degree, boolean animation) {mEnableAnimation = animation;// make sure in the range of [0, 359]degree = degree >= 0 ? degree % 360 : degree % 360 + 360;
+       degree = degree + 90;

修改预览角度
camera api1中可以通过setCameraDisplayOrientation()方法修改预览方向，但是camera api2没有旋转预览的相关接口，只能修改sensor_config.xml文件中对应camera id的角度值，可分别尝试使用0/90/180/270这四个值，具体按项目实际情况来定。

修改成像角度
旋转拍照照片角度
Camera APP中，照片角度可通过 ANDROID_JPEG_ORIENTATION tag设置。

DreamCamera2 APP的图片角度可以通过以下 mJpegRotation 来修改。

src/com/android/camera/PhotoModule.java

@Override
public boolean capture() {
.................................
boolean isFrontCamera = info.isFacingFront();
mJpegRotation = CameraUtil.getImageRotation(sensorOrientation,  
deviceOrientation, isFrontCamera);   ////mJpegRotation为图片旋转的角度 可根据实际需求增加 90 180 270
Log.i(TAG, " sensorOrientation = " + sensorOrientation

旋转录像视频角度
Camera APP中，录像角度的修改通过 setOrientationHint(int degrees) 接口实现。

DreamCamera2 APP的录像角度可以通过以下rotation来完成

src/com/android/camera/VideoModule.java

private class VideoRecordStartTask extends AsyncTask<Void, Void, Void> {
.................................@Overrideprotected void onPostExecute(Void result) {.................................int rotation = CameraUtil.getImageRotation(sensorOrientation,deviceOrientation, isCameraFrontFacing()); ///录像旋转角度rotation  可根据实际需求增加 90 180 270/*** SPRD: Add for bug 585183, 3d video recoding @{* Original Code*mMediaRecorder.setOrientationHint();*/mMediaRecorder.setOrientationHint(getRecorderOrientationHint(rotation));  //设置录像角度

屏蔽无法适配横屏的功能
横屏之后目前无法适配的功能有全景、滤镜等，可以参考如下修改去除：

修改文件vendor\sprd\platform\packages\apps\DreamCamera2\src\com\android\camera\util\CameraUtil.java

       //去除全景public static boolean isWideAngleEnable() {
-       return 0 < wideAngleVersion && isBackCameraEnable;
+      //return 0 < wideAngleVersion && isBackCameraEnable;
+             return false;
}//去除滤镜public static boolean isUseSprdFilter() {
-       return (mFilterVersion == 2);
+      //return (mFilterVersion == 2);
+            return false;
}//去除慢动作public static boolean isSlowMotionEnabled() {
-                 return isSlowMotionEnabled && isBackCameraEnable();
+        //return isSlowMotionEnabled && isBackCameraEnable();
+                 return false;
}//去除有声照片public static boolean isVoicePhotoEnable() {
-               return isVoicePhotoEnabled;
+        //return isVoicePhotoEnabled;
+        return false;
}//去除二维码public static boolean isQrCodeEnabled(){
-      return isQrCodeEnabled && isBackCameraEnable;
+        //return isQrCodeEnabled && isBackCameraEnable;
+           return false;}