为什么图像被保存在横向模式？ [英] Why image is being saved in Landscape Mode?
本文介绍了为什么图像被保存在横向模式？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
在我的code一切是怎么回事很好，但点击图片在给定的目录被保存在横向模式。我已经尽了全力。请帮助和建议我来解决这个问题。
完整code在下面给出与打印屏幕。
或从这里下载
https://www.dropbox.com/sh/vp6ohly4zb5vmvq/AACOyS8PvsRxFGBP9zjlVWhza？ DL = 0
保存在SD卡的图像，即使在人像拍摄的它出现在横向
![在这里输入的形象描述](\"http://i.stack.imgur.com/D1JCp.png\")
公共类AndroidCamera扩展活动实现SurfaceHolder.Callback { 摄像头摄像头; SurfaceView surfaceView;
SurfaceHolder surfaceHolder;
布尔previewing = FALSE;
LayoutInflater controlInflater = NULL; / **当第一次创建活动调用。 * /
@覆盖
公共无效的onCreate（捆绑savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.main）;
setRequestedOrientation（ActivityInfo.SCREEN_ORIENTATION_PORTRAIT）;
//camera.enableShutterSound(true）;
。getWindow（）和setFormat（PixelFormat.UNKNOWN）;
surfaceView =（SurfaceView）findViewById（R.id.camera preVIEW）;
surfaceHolder = surfaceView.getHolder（）;
surfaceHolder.addCallback（本）;
surfaceHolder.setType（SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS）; controlInflater = LayoutInflater.from（getBaseContext（））;
查看viewControl = controlInflater.inflate（R.layout.control，NULL）;
的LayoutParams layoutParamsControl
=新的LayoutParams（LayoutParams.FILL_PARENT，
LayoutParams.FILL_PARENT）;
this.addContentView（viewControl，layoutParamsControl）; 按钮buttonTakePicture =（按钮）findViewById（R.id.takepicture）;
buttonTakePicture.setOnClickListener（新Button.OnClickListener（）{ @覆盖
公共无效的onClick（查看为arg0）{
// TODO自动生成方法存根
camera.takePicture（myShutterCallback，
myPictureCallback_RAW，myPictureCallback_JPG）;
}}）;
} ShutterCallback myShutterCallback =新ShutterCallback（）{ @覆盖
公共无效onShutter（）{
// TODO自动生成方法存根 }}; PictureCallback myPictureCallback_RAW =新PictureCallback（）{ @覆盖
公共无效onPictureTaken（字节[]为arg0，ARG1相机）{
// TODO自动生成方法存根 }}; PictureCallback myPictureCallback_JPG =新PictureCallback（）{ @覆盖
公共无效onPictureTaken（字节[]为arg0，ARG1相机）{
// TODO自动生成方法存根 位图bitmapPicture
= BitmapFactory.de codeByteArray的（为arg0，0，arg0.length）;
。字符串根= Environment.getExternalStorageDirectory（）的toString（）;
文件MYDIR =新的文件（根+/ cam_Api）;
myDir.mkdirs（）; FileOutputStream中outStream = NULL;
尝试{
outStream =新的FileOutputStream（的String.format（/ SD卡/ cam_Api / cam_Ap1_％D.JPG，System.currentTimeMillis的（）））; outStream.write（为arg0）;
outStream.close（）;
} 赶上（FileNotFoundException异常五）{
e.printStackTrace（）;
} 赶上（IOException异常五）{
e.printStackTrace（）;
} 最后{
} Toast.makeText（getApplicationContext（），图片已保存，Toast.LENGTH_LONG）.show（）;
refreshCamera（）;//文件文件=新的文件（Environment.getExternalStorageDirectory（）/ cam_Api / MyPhoto2.jpg）; }}; 公共无效refreshCamera（）{
如果（surfaceHolder.getSurface（）== NULL）{
返回;
} 尝试{
camera.stop preVIEW（）;
} 赶上（例外五）{
} 尝试{
camera.set previewDisplay（surfaceHolder）;
camera.start preVIEW（）;
}
赶上（例外五）{
}
} @覆盖
公共无效surfaceChanged（SurfaceHolder架，INT格式，宽度INT，
INT高度）{
// TODO自动生成方法存根
如果（previewing）{
camera.stop preVIEW（）;
previewing = FALSE;
} 如果（相机！= NULL）{
尝试{
camera.set previewDisplay（surfaceHolder）;
camera.start preVIEW（）;
previewing = TRUE;
}赶上（IOException异常五）{
// TODO自动生成catch块
e.printStackTrace（）;
}
}
} @覆盖
公共无效surfaceCreated（SurfaceHolder持有人）{
// TODO自动生成方法存根 相机= Camera.open（）;
camera.setDisplayOrientation（90）;
} @覆盖
公共无效surfaceDestroyed（SurfaceHolder持有人）{
// TODO自动生成方法存根
camera.stop preVIEW（）;
camera.release（）;
摄像头= NULL;
previewing = FALSE;
}
}
解决方案
您需要旋转图像，然后保存。
公共静态位图rotateImage（位图bitmapSrc）{
字模=新的Matrix（）;
matrix.postRotate（CameraConfigurationUtils previewRotation）;
返回Bitmap.createBitmap（bitmapSrc，0，0，
bitmapSrc.getWidth（），bitmapSrc.getHeight（），矩阵，真）;
}
要获取旋转：
私有静态诠释setCameraDisplayOrientation（上下文mContext，android.hardware.Camera.CameraInfo资讯）{
INT旋转=（（CameraActivity）mContext）.getWindowManager（）。getDefaultDisplay（）
.getRotation（）;
INT度= 0;
开关（旋转）{
案例Surface.ROTATION_0：
度= 0;
打破;
案例Surface.ROTATION_90：
度= 90;
打破;
案例Surface.ROTATION_180：
度= 180;
打破;
案例Surface.ROTATION_270：
度= 270;
打破;
} 如果（info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT）{
previewRotation =（info.orientation +度）360％;
previewRotation =（360 - previewRotation）360％; //补偿镜
}其他{//后置
previewRotation =（info.orientation - 度+ 360）％360;
}
返回previewRotation;
}
In my code all is going well but clicked Image is being saved in Landscape Mode in given Directory. I have tried my best. Please help and suggest me to resolve this issue.
The complete Code is given below with Print screen. or download from here
https://www.dropbox.com/sh/vp6ohly4zb5vmvq/AACOyS8PvsRxFGBP9zjlVWhza?dl=0
Image saved in SDcard even captured in portrait it appear in landscape
public class AndroidCamera extends Activity implements SurfaceHolder.Callback{
Camera camera;
SurfaceView surfaceView;
SurfaceHolder surfaceHolder;
boolean previewing = false;
LayoutInflater controlInflater = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
//camera.enableShutterSound(true);
getWindow().setFormat(PixelFormat.UNKNOWN);
surfaceView = (SurfaceView)findViewById(R.id.camerapreview);
surfaceHolder = surfaceView.getHolder();
surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
controlInflater = LayoutInflater.from(getBaseContext());
View viewControl = controlInflater.inflate(R.layout.control, null);
LayoutParams layoutParamsControl
= new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT);
this.addContentView(viewControl, layoutParamsControl);
Button buttonTakePicture = (Button)findViewById(R.id.takepicture);
buttonTakePicture.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
camera.takePicture(myShutterCallback,
myPictureCallback_RAW, myPictureCallback_JPG);
}});
}
ShutterCallback myShutterCallback = new ShutterCallback(){
@Override
public void onShutter() {
// TODO Auto-generated method stub
}};
PictureCallback myPictureCallback_RAW = new PictureCallback(){
@Override
public void onPictureTaken(byte[] arg0, Camera arg1) {
// TODO Auto-generated method stub
}};
PictureCallback myPictureCallback_JPG = new PictureCallback(){
@Override
public void onPictureTaken(byte[] arg0, Camera arg1) {
// TODO Auto-generated method stub
Bitmap bitmapPicture
= BitmapFactory.decodeByteArray(arg0, 0, arg0.length);
String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root + "/cam_Api");
myDir.mkdirs();
FileOutputStream outStream = null;
try {
outStream = new FileOutputStream(String.format("/sdcard/cam_Api/cam_Ap1_%d.jpg", System.currentTimeMillis()));
outStream.write(arg0);
outStream.close();
}
catch (FileNotFoundException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
finally {
}
Toast.makeText(getApplicationContext(), "Picture Saved", Toast.LENGTH_LONG).show();
refreshCamera();
// File file = new File(Environment.getExternalStorageDirectory(),"/cam_Api/MyPhoto2.jpg");
}};
public void refreshCamera() {
if (surfaceHolder.getSurface() == null) {
return;
}
try {
camera.stopPreview();
}
catch (Exception e) {
}
try {
camera.setPreviewDisplay(surfaceHolder);
camera.startPreview();
}
catch (Exception e) {
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
// TODO Auto-generated method stub
if(previewing){
camera.stopPreview();
previewing = false;
}
if (camera != null){
try {
camera.setPreviewDisplay(surfaceHolder);
camera.startPreview();
previewing = true;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
// TODO Auto-generated method stub
camera = Camera.open();
camera.setDisplayOrientation(90);
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
// TODO Auto-generated method stub
camera.stopPreview();
camera.release();
camera = null;
previewing = false;
}
}
解决方案
you need to rotate the image and then save it.
public static Bitmap rotateImage(Bitmap bitmapSrc) {
Matrix matrix = new Matrix();
matrix.postRotate(CameraConfigurationUtils.previewRotation);
return Bitmap.createBitmap(bitmapSrc, 0, 0,
bitmapSrc.getWidth(), bitmapSrc.getHeight(), matrix, true);
}
To get the rotation:
private static int setCameraDisplayOrientation(Context mContext, android.hardware.Camera.CameraInfo info) {
int rotation = ((CameraActivity) mContext).getWindowManager().getDefaultDisplay()
.getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
}
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
previewRotation = (info.orientation + degrees) % 360;
previewRotation = (360 - previewRotation) % 360; // compensate the mirror
} else { // back-facing
previewRotation = (info.orientation - degrees + 360) % 360;
}
return previewRotation;
}
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