blocks|key|449703|text|你可以参考下面的代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|449704|ExifInterface+exif+=+new+ExifInterface(SourceFileName);+++++//Since+API+Level+5

String+exifOrientation+=+exif.getAttribute(ExifInterface.TAG_ORIENTATION);|code-block|syntax|javascript|449705|也可以参考这个链接https://stackoverflow.com/a/6124375/1441666|offset|length|449706|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/6124375/1441666^0|0|0|9|17|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

You can refer below code.

<pre><code>ExifInterface exif = new ExifInterface(SourceFileName); //Since API Level 5

String exifOrientation = exif.getAttribute(ExifInterface.TAG_ORIENTATION);
</code></pre>

And also refer this link <a href="https://stackoverflow.com/a/6124375/1441666">https://stackoverflow.com/a/6124375/1441666</a>

blocks|key|231834|text|为此，我使用了以下代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|231835|ExifInterface+exif+=+new+ExifInterface(getUriPath(uri));
int+orientation+=+exif.getAttributeInt(
++++++++++++++++ExifInterface.TAG_ORIENTATION,
++++++++++++++++ExifInterface.ORIENTATION_NORMAL);|code-block|syntax|javascript|231836|getUriPath：|231837|public+String+getUriPath(Uri+uri)+{
++++String[]+projection+=+{+MediaStore.Images.Media.DATA+};
++++Cursor+cursor+=+getContentResolver().query(uri,+projection,+null,+null,
++++++++++++null);
++++if+(cursor+!=+null)+{
++++++++int+column_index+=+cursor.getColumnIndexOrThrow(projection[0]);
++++++++cursor.moveToFirst();
++++++++String+filePath+=+cursor.getString(column_index);
++++++++cursor.close();
++++++++return+filePath;
++++}+else
++++++++return+null;
}|231838|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I'm using the following code for this:

<pre><code>ExifInterface exif = new ExifInterface(getUriPath(uri));
int orientation = exif.getAttributeInt(
 ExifInterface.TAG_ORIENTATION,
 ExifInterface.ORIENTATION_NORMAL);
</code></pre>

getUriPath:

<pre><code>public String getUriPath(Uri uri) {
 String[] projection = { MediaStore.Images.Media.DATA };
 Cursor cursor = getContentResolver().query(uri, projection, null, null,
 null);
 if (cursor != null) {
 int column_index = cursor.getColumnIndexOrThrow(projection[0]);
 cursor.moveToFirst();
 String filePath = cursor.getString(column_index);
 cursor.close();
 return filePath;
 } else
 return null;
}
</code></pre>

blocks|key|449747|text|您可以使用它从Uri获取方向|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|449748|++++++++++++++++++++String+filePath+=+mImageUri.getPath();
++++++++++++++++if+(filePath+!=+null)+{
++++++++++++++++++++rotation+=+-1;
++++++++++++++++++++++++ExifInterface+exif+=+new+ExifInterface(filePath);+//+Since
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//+API
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//+Level
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//+5
++++++++++++++++++++++++rotation+=+Integer.parseInt(exif.getAttribute(ExifInterface.TAG_ORIENTATION));
++++++++++++++++++++++++//+//Log.v("roation",
++++++++++++++++++++++++//+exif.getAttribute(ExifInterface.TAG_ORIENTATION));
++++++++++++++++++++}

++++++++++++++++}
++++++++++++}+catch+(Exception+e)+{
++++++++++++++++Toast.makeText(getApplicationContext(),+"Internal+error",+Toast.LENGTH_LONG).show();
++++++++++++++++Log.e(e.getClass().getName(),+e.getMessage(),+e);
++++++++++++}|code-block|syntax|javascript|449749|如音符旋转'3+=+180，6=+90，8=+270‘|449750|entityMap^0|7|3|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

You can use this to get orientation from a <code>Uri</code>

<pre><code> String filePath = mImageUri.getPath();
 if (filePath != null) {
 rotation = -1;
 ExifInterface exif = new ExifInterface(filePath); // Since
 // API
 // Level
 // 5
 rotation = Integer.parseInt(exif.getAttribute(ExifInterface.TAG_ORIENTATION));
 // //Log.v("roation",
 // exif.getAttribute(ExifInterface.TAG_ORIENTATION));
 }

 }
 } catch (Exception e) {
 Toast.makeText(getApplicationContext(), "Internal error", Toast.LENGTH_LONG).show();
 Log.e(e.getClass().getName(), e.getMessage(), e);
 }
</code></pre>

And as note rotation '3 = 180, 6 = 90, 8 = 270'

blocks|key|449785|text|尝试此代码片段|type|unstyled|depth|inlineStyleRanges|entityRanges|data|449786|try+{

++++ExifInterface+exif+=+new+ExifInterface(filePath);
++++orientation+=+exif.getAttributeInt(ExifInterface.TAG_ORIENTATION,+1);
++++//Toast.makeText(getApplicationContext(),+""%2Borientation,+1).show();
++++Log.v("log",+"ort+is+"%2Borientation);

++++}+catch+(IOException+e)
++++{
++++++++e.printStackTrace();
++++}|code-block|syntax|javascript|449787|然后按照你得到的方向旋转矩阵|449788|if+(orientation==6)
{
++++Matrix+matrix+=+new+Matrix();
++++matrix.postRotate(90);
++++bmp+=+Bitmap.createBitmap(bmp,+0,+0,+bmp.getWidth(),+bmp.getHeight(),+matrix,+true);
}
else+if+(orientation==8)
{
++++Matrix+matrix+=+new+Matrix();
++++matrix.postRotate(270);
++++bmp+=+Bitmap.createBitmap(bmp,+0,+0,+bmp.getWidth(),+bmp.getHeight(),+matrix,+true);
}

else+if+(orientation==3)
{
++++Matrix+matrix+=+new+Matrix();
++++matrix.postRotate(180);
++++bmp+=+Bitmap.createBitmap(bmp,+0,+0,+bmp.getWidth(),+bmp.getHeight(),+matrix,+true;
}|449789|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

try this code snippet 

<pre><code>try {

 ExifInterface exif = new ExifInterface(filePath);
 orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 1);
 //Toast.makeText(getApplicationContext(), ""+orientation, 1).show();
 Log.v("log", "ort is "+orientation);

 } catch (IOException e)
 {
 e.printStackTrace();
 }
</code></pre>

and then rotate the matrix as per orientation you get

<pre><code>if (orientation==6)
{
 Matrix matrix = new Matrix();
 matrix.postRotate(90);
 bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
}
else if (orientation==8)
{
 Matrix matrix = new Matrix();
 matrix.postRotate(270);
 bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
}

else if (orientation==3)
{
 Matrix matrix = new Matrix();
 matrix.postRotate(180);
 bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true;
}
</code></pre>

blocks|key|449836|text|选择的答案只是给出了可能已经保存在EXIF标题中的可能的旋转。在某些情况下，相机不会在EXIFHeader中设置"ExifInterface.TAG_ORIENTATION“属性，因此它将为0(ExifInterface.ORIENTATION_UNDEFINED)。和事件如果设置了，则在拍摄照片时，只有一种情况/方向为真。您必须使用setRotation()方法在摄影机参数中手动设置旋转。setRotation()的文档非常清楚，还解释了如何在考虑设备旋转和相机传感器方向(通常是横向)的情况下计算旋转。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|449837|因此，请查看setRotation()方法。这就是你需要改变的。|449838|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

the selected answer just gives the the possible rotation that may have been saved in EXIF header. in several cases camera doesn't set "ExifInterface.TAG_ORIENTATION" attribute in EXIFHeader so it will be 0(ExifInterface.ORIENTATION_UNDEFINED). and event if it is set it will be true in only one case/orientation when the picture is taken. you have to manually set rotation in camera parameters using setRotation() method. the documentation of setRotation() is very clear and also explains how to calculate rotation with consideration of device rotation and camera sensor orientation(usually landscape).

so check out setRotation() method . thats what you need to change.

I have a camera app in portrait mode which takes pictures from both front and back end cameras.The issue is like the captured images are rotated in a wrong way...

For preview i have used the following code....

<pre><code> Camera.Parameters parameters = camera.getParameters();
 android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
 android.hardware.Camera.getCameraInfo(defaultCameraId, info);
 int rotation = this.getWindowManager().getDefaultDisplay()
 .getRotation();
 if (Integer.parseInt(Build.VERSION.SDK) &gt;= 8) {

 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;
 }
 int result;
 if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
 result = (info.orientation + degrees) % 360;
 result = (360 - result) % 360; // compensate the mirror
 } else { // back-facing
 result = (info.orientation - degrees + 360) % 360;
 }

 camera.setDisplayOrientation(result);

 } else {
 parameters.set("orientation", "portrait");
 }

 camera.setParameters(parameters);
</code></pre>

But the captured images are rotated in a wrong way.i have also tried to rotate the captured image using <code>matrix.postRotate(bitmap)</code>.That too doesn't work in some devices like nexus..I tried EXIF also.But here i have url instead of filepath.That doesn't work as well. can anyone help me ?

android front and back camera captured picture orientation issue, rotated in a wrong way

我在肖像模式下有一个相机应用程序，可以从前端和后端拍摄照片，cameras.The问题就像捕获的图像被以错误的方式旋转…为了预览，我使用了以下代码...    Camera.Parameters parameters = camera.getParameters();        android.hardware.C...

问android前后摄像头捕捉到图片方向问题，旋转方向错误
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