Camera View SurfaceView 仅存储在 Landscape 中
Camera View SurfaceView Stored in Landscape only
我在 android 中尝试使用相机并想到使用 surfaceview 覆盖帧，找到了这个示例.. Android creating camera and overrelay frame。例子很棒。
1.Started 增强所以改变了肖像和风景框架，当我改变到肖像时相机视图没有显示所以检查并从这个 link Whosebug(changing display orientation) 得到答案，插入的代码表面为此发生了变化..在设置参数中显示错误，所以删除了，它起作用了
2.But当我看到我拍的照片是这样的..
Image. Then again got ans from this link ExifInterface(orientatioin)
- 前置摄像头也打不开了.. ??
cambutton.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageButton
android:id="@+id/btnCapture"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="500dp"
android:background="@drawable/cam"
android:layout_centerHorizontal="true"
/>
<ImageButton
android:id="@+id/btnswitch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/switchcamera"
android:layout_marginLeft="85dp"
android:layout_marginStart="85dp"
android:layout_marginTop="500dp"
android:layout_toRightOf="@id/btnCapture"
android:layout_toEndOf="@id/btnCapture"
/>
</RelativeLayout>
campotrait.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<SurfaceView
android:id="@+id/cameraSurfaceView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/frame3"
/>
</LinearLayout>
camoverrelay1.xml为横屏，同上代码
Share.java
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.PixelFormat;
import android.graphics.drawable.Drawable;
import android.hardware.Camera;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.Display;
import android.view.LayoutInflater;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageButton;
import android.widget.RelativeLayout;
import android.widget.Toast;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
public class Share extends Activity implements SurfaceHolder.Callback{
private Camera camera = null;
private SurfaceView cameraSurfaceView = null;
private SurfaceHolder cameraSurfaceHolder = null;
private boolean previewing = false;
private Display display = null;
private static int wid = 0, hgt = 0;
private LayoutInflater layoutInflater = null;
private View cameraViewControl = null;
private RelativeLayout.LayoutParams layoutParamsControl = null;
private ImageButton btnCapture = null;
private ImageButton btnswitch = null;
Camera.Size previewSize=null;
Camera.Size optimalSize = null;
Bitmap mBitmap;
@Override
protected void onCreate(Bundle savedInstanceState)
{
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
display = getWindowManager().getDefaultDisplay();
wid = display.getWidth();
hgt = display.getHeight();
getWindow().setFormat(PixelFormat.TRANSLUCENT);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.
FLAG_FULLSCREEN, WindowManager.
LayoutParams.FLAG_FULLSCREEN);
int orientation = getResources().getConfiguration().orientation;
/* Camera.Parameters p = camera.getParameters();
p.set("orientation", "portrait");
p.set("rotation", 90);
camera.setParameters(p);*/
if ((orientation == Configuration.ORIENTATION_PORTRAIT)) {
/* camera.setDisplayOrientation(90);*/
setContentView(R.layout.campotrait);
}
else{
/* camera.setDisplayOrientation(180);*/
setContentView(R.layout.cameraoverlay1);
}
cameraSurfaceView = (SurfaceView)findViewById(R.id.cameraSurfaceView);
cameraSurfaceHolder = cameraSurfaceView.getHolder();
cameraSurfaceHolder.addCallback(this);
cameraSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
layoutInflater = LayoutInflater.from(getBaseContext());
layoutParamsControl = new RelativeLayout.LayoutParams
(RelativeLayout.LayoutParams.FILL_PARENT,RelativeLayout.LayoutParams.
FILL_PARENT);
cameraViewControl = layoutInflater.inflate(R.layout.cambutton, null);
this.addContentView(cameraViewControl, layoutParamsControl);
btnCapture = (ImageButton)findViewById(R.id.btnCapture);
btnswitch = (ImageButton) findViewById(R.id.btnswitch);
btnCapture.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
// TODO Auto-generated method stub
camera.takePicture(cameraShutterCallback,
cameraPictureCallbackRaw,
cameraPictureCallbackJpeg);
}
});
btnswitch.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
// TODO Auto-generated method stub
int camerasNumber = Camera.getNumberOfCameras();
if (camerasNumber > 1) {
//release the old camera instance
//switch camera, from the front and the back and vice versa
openFrontFacingCameraGingerbread();
} else {
Toast toast = Toast.makeText(getApplicationContext(), "Sorry, your
phone has only one camera!", Toast.LENGTH_LONG);
toast.show();
}
}
});
}
private Camera openFrontFacingCameraGingerbread() {
int cameraCount = 0;
Camera cam = null;
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
cameraCount = Camera.getNumberOfCameras();
for (int camIdx = 0; camIdx < cameraCount; camIdx++) {
Camera.getCameraInfo(camIdx, cameraInfo);
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
try {
cam = Camera.open(camIdx);
} catch (RuntimeException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),"Failed to Open
Front Camera",Toast.LENGTH_SHORT).show();
}
}
}
return cam;
}
Camera.ShutterCallback cameraShutterCallback = new Camera.ShutterCallback()
{
@Override
public void onShutter()
{
}
};
Camera.PictureCallback cameraPictureCallbackRaw =
new Camera.PictureCallback()
{
@Override
public void onPictureTaken(byte[] data, Camera camera)
{
}
};
Camera.PictureCallback cameraPictureCallbackJpeg =
new Camera.PictureCallback()
{
@Override
public void onPictureTaken(byte[] data, Camera camera)
{
// TODO Auto-generated method stub
Bitmap cameraBitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
wid =cameraBitmap.getWidth();
hgt = cameraBitmap.getHeight();
Bitmap newImage = Bitmap.createBitmap(wid,hgt, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(newImage);
canvas.drawBitmap(cameraBitmap, 0f, 0f, null);
int orientation = getResources().getConfiguration().orientation;
if ((orientation == Configuration.ORIENTATION_PORTRAIT)){
Drawable drawable = getResources().getDrawable
(R.drawable.potraitimage);
assert drawable != null;
drawable.setBounds(0, 0, wid,hgt);
drawable.draw(canvas);
}
else{
Drawable drawable = getResources().getDrawable
(R.drawable.curtain);
assert drawable != null;
drawable.setBounds(0, 0, wid,hgt);
drawable.draw(canvas);
}
/* Bitmap bitm = null;*/
File storagePath = new File(Environment.
getExternalStorageDirectory() + "/ActEventz/");
storagePath.mkdirs();
File myImage = new File(storagePath, "test.jpg");
ExifInterface exif;
try {
exif = new ExifInterface(storagePath + "test.jpg");
int orient = exif.getAttributeInt(
ExifInterface.TAG_ORIENTATION, 0);
Log.d("EXIF", "Exif: " + orient);
Matrix matrix = new Matrix();
if (orient == 0) {
matrix.postRotate(0);
Log.d("EXIF", "Exif: " + orient);
} else if (orient == 90) {
matrix.postRotate(0);
Log.d("EXIF", "Exif: " + orient);
}
mBitmap= Bitmap.createBitmap(cameraBitmap, 0,
0,cameraBitmap.getWidth(), cameraBitmap.getHeight(), matrix, true);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ByteArrayOutputStream stream = new ByteArrayOutputStream();
mBitmap.compress(Bitmap.CompressFormat.PNG, 0, stream);
byte[] byteArray= stream.toByteArray();
Intent i = new Intent(getApplicationContext(), Imageview.class);
Bundle bu = new Bundle();
bu.putByteArray("photo",byteArray );
i.putExtras(bu);
startActivity(i);
try
{
FileOutputStream out = new FileOutputStream(myImage);
newImage.compress(Bitmap.CompressFormat.JPEG, 80, out);
Toast.makeText(getApplicationContext(), "Image Captured",
Toast.LENGTH_SHORT).show();
out.flush();
out.close();
} catch(IOException e)
{
Log.d("In Saving File", e + "");
}
/* Matrix matrix = new Matrix();
matrix.postRotate(90);
Bitmap bitmap = BitmapFactory.decodeFile(storagePath+"test.jpg");
Bitmap rotatedBitmap = Bitmap.createBitmap(bitmap , 0, 0, bitmap.getWidth(),bitmap.getHeight(), matrix, true);
Bitmap scaledBitmap = Bitmap.createScaledBitmap(rotatedBitmap,
hgt,wid,true);
scaledBitmap.compress(Bitmap.CompressFormat.PNG, 0, stream);*/
camera.startPreview();
newImage.recycle();
newImage = null;
cameraBitmap.recycle();
cameraBitmap = null;
}
};
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case 200: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0 && grantResults[0] ==PackageManager.
PERMISSION_GRANTED) {
//Permission Granted
} else {
//Permission Denied
}
return;
//Use other case lines for other requests (with different requestCodes)
}
}
}
@Override
public void surfaceChanged(SurfaceHolder holder,
int format, int width, int height)
{
// TODO Auto-generated method stub
if(previewing)
{
camera.stopPreview();
previewing = false;
}
Camera.Parameters parameters = camera.getParameters();
Display display = ((WindowManager)getSystemService
(WINDOW_SERVICE)).getDefaultDisplay();
List<Camera.Size> previewSizes = parameters.getSupportedPreviewSizes();
previewSize=previewSizes.get(0);
// You need to choose the most appropriate previewSize for your app
// .... select one of previewSizes here
/* parameters.setPreviewSize(previewSize.width, previewSize.height);*/
if(display.getRotation() == Surface.ROTATION_0)
{
parameters.setPreviewSize(previewSize.height,previewSize.width);
camera.setDisplayOrientation(90);
}
if(display.getRotation() == Surface.ROTATION_90)
{
parameters.setPreviewSize(previewSize.width,previewSize.height);
}
if(display.getRotation() == Surface.ROTATION_180)
{
parameters.setPreviewSize(previewSize.height,previewSize.width);
}
if(display.getRotation() == Surface.ROTATION_270)
{
parameters.setPreviewSize(previewSize.width,previewSize.height);
camera.setDisplayOrientation(180);
}
/*camera.setParameters(parameters);*/
//here error occurs setParameters failed
try
{
camera.setPreviewDisplay(cameraSurfaceHolder);
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
try
{
camera = Camera.open();
}
catch(Exception e)
{
Toast.makeText(getApplicationContext(), "Device camera is not
working properly, please try after sometime.", Toast.LENGTH_LONG).show();
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder)
{
// TODO Auto-generated method stub
camera.stopPreview();
camera.release();
camera = null;
previewing = false;
}
}
我搜索了很多网站，Whosebug，我无法得到正确的答案，唯一的错误是相机的捕获视图请给我建议解决方案伙计们..我整天都被困在这上面..谢谢你提前。
感谢支持人员。我通过更改 Surface Changed 中的一些代码解决了这个问题。我已经删除了 ExifInterface 部分本身。刚刚在 surfacechanged 中完成下面的编码，图像按预期保存。： )
@Override
public void surfaceChanged(SurfaceHolder holder,
int format, int width, int height)
{
// TODO Auto-generated method stub
if(previewing)
{
camera.stopPreview();
previewing = false;
}
Camera.Parameters parameters = camera.getParameters();
Display display = ((WindowManager)getSystemService(WINDOW_SERVICE)).
getDefaultDisplay();
int or=cameraInfo.orientation;
// You need to choose the most appropriate previewSize for your app
// .... select one of previewSizes here
/* parameters.setPreviewSize(previewSize.width, previewSize.height);*/
if(display.getRotation() == Surface.ROTATION_0)
{
camera.setDisplayOrientation(90);
or=90;
}
if(display.getRotation() == Surface.ROTATION_180)
{
camera.setDisplayOrientation(270);
or=270;
}
if(display.getRotation() == Surface.ROTATION_270)
{
camera.setDisplayOrientation(180);
or=180;
}
parameters.setRotation(or);
camera.setParameters(parameters);
try
{
camera.setPreviewDisplay(cameraSurfaceHolder);
camera.startPreview();
previewing = true;
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
我在 android 中尝试使用相机并想到使用 surfaceview 覆盖帧，找到了这个示例.. Android creating camera and overrelay frame。例子很棒。
1.Started 增强所以改变了肖像和风景框架，当我改变到肖像时相机视图没有显示所以检查并从这个 link Whosebug(changing display orientation) 得到答案，插入的代码表面为此发生了变化..在设置参数中显示错误，所以删除了，它起作用了
2.But当我看到我拍的照片是这样的..
Image. Then again got ans from this link ExifInterface(orientatioin)
- 前置摄像头也打不开了.. ??
cambutton.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageButton
android:id="@+id/btnCapture"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="500dp"
android:background="@drawable/cam"
android:layout_centerHorizontal="true"
/>
<ImageButton
android:id="@+id/btnswitch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/switchcamera"
android:layout_marginLeft="85dp"
android:layout_marginStart="85dp"
android:layout_marginTop="500dp"
android:layout_toRightOf="@id/btnCapture"
android:layout_toEndOf="@id/btnCapture"
/>
</RelativeLayout>
campotrait.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<SurfaceView
android:id="@+id/cameraSurfaceView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/frame3"
/>
</LinearLayout>
camoverrelay1.xml为横屏，同上代码
Share.java
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.PixelFormat;
import android.graphics.drawable.Drawable;
import android.hardware.Camera;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.Display;
import android.view.LayoutInflater;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageButton;
import android.widget.RelativeLayout;
import android.widget.Toast;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
public class Share extends Activity implements SurfaceHolder.Callback{
private Camera camera = null;
private SurfaceView cameraSurfaceView = null;
private SurfaceHolder cameraSurfaceHolder = null;
private boolean previewing = false;
private Display display = null;
private static int wid = 0, hgt = 0;
private LayoutInflater layoutInflater = null;
private View cameraViewControl = null;
private RelativeLayout.LayoutParams layoutParamsControl = null;
private ImageButton btnCapture = null;
private ImageButton btnswitch = null;
Camera.Size previewSize=null;
Camera.Size optimalSize = null;
Bitmap mBitmap;
@Override
protected void onCreate(Bundle savedInstanceState)
{
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
display = getWindowManager().getDefaultDisplay();
wid = display.getWidth();
hgt = display.getHeight();
getWindow().setFormat(PixelFormat.TRANSLUCENT);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.
FLAG_FULLSCREEN, WindowManager.
LayoutParams.FLAG_FULLSCREEN);
int orientation = getResources().getConfiguration().orientation;
/* Camera.Parameters p = camera.getParameters();
p.set("orientation", "portrait");
p.set("rotation", 90);
camera.setParameters(p);*/
if ((orientation == Configuration.ORIENTATION_PORTRAIT)) {
/* camera.setDisplayOrientation(90);*/
setContentView(R.layout.campotrait);
}
else{
/* camera.setDisplayOrientation(180);*/
setContentView(R.layout.cameraoverlay1);
}
cameraSurfaceView = (SurfaceView)findViewById(R.id.cameraSurfaceView);
cameraSurfaceHolder = cameraSurfaceView.getHolder();
cameraSurfaceHolder.addCallback(this);
cameraSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
layoutInflater = LayoutInflater.from(getBaseContext());
layoutParamsControl = new RelativeLayout.LayoutParams
(RelativeLayout.LayoutParams.FILL_PARENT,RelativeLayout.LayoutParams.
FILL_PARENT);
cameraViewControl = layoutInflater.inflate(R.layout.cambutton, null);
this.addContentView(cameraViewControl, layoutParamsControl);
btnCapture = (ImageButton)findViewById(R.id.btnCapture);
btnswitch = (ImageButton) findViewById(R.id.btnswitch);
btnCapture.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
// TODO Auto-generated method stub
camera.takePicture(cameraShutterCallback,
cameraPictureCallbackRaw,
cameraPictureCallbackJpeg);
}
});
btnswitch.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
// TODO Auto-generated method stub
int camerasNumber = Camera.getNumberOfCameras();
if (camerasNumber > 1) {
//release the old camera instance
//switch camera, from the front and the back and vice versa
openFrontFacingCameraGingerbread();
} else {
Toast toast = Toast.makeText(getApplicationContext(), "Sorry, your
phone has only one camera!", Toast.LENGTH_LONG);
toast.show();
}
}
});
}
private Camera openFrontFacingCameraGingerbread() {
int cameraCount = 0;
Camera cam = null;
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
cameraCount = Camera.getNumberOfCameras();
for (int camIdx = 0; camIdx < cameraCount; camIdx++) {
Camera.getCameraInfo(camIdx, cameraInfo);
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
try {
cam = Camera.open(camIdx);
} catch (RuntimeException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),"Failed to Open
Front Camera",Toast.LENGTH_SHORT).show();
}
}
}
return cam;
}
Camera.ShutterCallback cameraShutterCallback = new Camera.ShutterCallback()
{
@Override
public void onShutter()
{
}
};
Camera.PictureCallback cameraPictureCallbackRaw =
new Camera.PictureCallback()
{
@Override
public void onPictureTaken(byte[] data, Camera camera)
{
}
};
Camera.PictureCallback cameraPictureCallbackJpeg =
new Camera.PictureCallback()
{
@Override
public void onPictureTaken(byte[] data, Camera camera)
{
// TODO Auto-generated method stub
Bitmap cameraBitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
wid =cameraBitmap.getWidth();
hgt = cameraBitmap.getHeight();
Bitmap newImage = Bitmap.createBitmap(wid,hgt, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(newImage);
canvas.drawBitmap(cameraBitmap, 0f, 0f, null);
int orientation = getResources().getConfiguration().orientation;
if ((orientation == Configuration.ORIENTATION_PORTRAIT)){
Drawable drawable = getResources().getDrawable
(R.drawable.potraitimage);
assert drawable != null;
drawable.setBounds(0, 0, wid,hgt);
drawable.draw(canvas);
}
else{
Drawable drawable = getResources().getDrawable
(R.drawable.curtain);
assert drawable != null;
drawable.setBounds(0, 0, wid,hgt);
drawable.draw(canvas);
}
/* Bitmap bitm = null;*/
File storagePath = new File(Environment.
getExternalStorageDirectory() + "/ActEventz/");
storagePath.mkdirs();
File myImage = new File(storagePath, "test.jpg");
ExifInterface exif;
try {
exif = new ExifInterface(storagePath + "test.jpg");
int orient = exif.getAttributeInt(
ExifInterface.TAG_ORIENTATION, 0);
Log.d("EXIF", "Exif: " + orient);
Matrix matrix = new Matrix();
if (orient == 0) {
matrix.postRotate(0);
Log.d("EXIF", "Exif: " + orient);
} else if (orient == 90) {
matrix.postRotate(0);
Log.d("EXIF", "Exif: " + orient);
}
mBitmap= Bitmap.createBitmap(cameraBitmap, 0,
0,cameraBitmap.getWidth(), cameraBitmap.getHeight(), matrix, true);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ByteArrayOutputStream stream = new ByteArrayOutputStream();
mBitmap.compress(Bitmap.CompressFormat.PNG, 0, stream);
byte[] byteArray= stream.toByteArray();
Intent i = new Intent(getApplicationContext(), Imageview.class);
Bundle bu = new Bundle();
bu.putByteArray("photo",byteArray );
i.putExtras(bu);
startActivity(i);
try
{
FileOutputStream out = new FileOutputStream(myImage);
newImage.compress(Bitmap.CompressFormat.JPEG, 80, out);
Toast.makeText(getApplicationContext(), "Image Captured",
Toast.LENGTH_SHORT).show();
out.flush();
out.close();
} catch(IOException e)
{
Log.d("In Saving File", e + "");
}
/* Matrix matrix = new Matrix();
matrix.postRotate(90);
Bitmap bitmap = BitmapFactory.decodeFile(storagePath+"test.jpg");
Bitmap rotatedBitmap = Bitmap.createBitmap(bitmap , 0, 0, bitmap.getWidth(),bitmap.getHeight(), matrix, true);
Bitmap scaledBitmap = Bitmap.createScaledBitmap(rotatedBitmap,
hgt,wid,true);
scaledBitmap.compress(Bitmap.CompressFormat.PNG, 0, stream);*/
camera.startPreview();
newImage.recycle();
newImage = null;
cameraBitmap.recycle();
cameraBitmap = null;
}
};
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case 200: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0 && grantResults[0] ==PackageManager.
PERMISSION_GRANTED) {
//Permission Granted
} else {
//Permission Denied
}
return;
//Use other case lines for other requests (with different requestCodes)
}
}
}
@Override
public void surfaceChanged(SurfaceHolder holder,
int format, int width, int height)
{
// TODO Auto-generated method stub
if(previewing)
{
camera.stopPreview();
previewing = false;
}
Camera.Parameters parameters = camera.getParameters();
Display display = ((WindowManager)getSystemService
(WINDOW_SERVICE)).getDefaultDisplay();
List<Camera.Size> previewSizes = parameters.getSupportedPreviewSizes();
previewSize=previewSizes.get(0);
// You need to choose the most appropriate previewSize for your app
// .... select one of previewSizes here
/* parameters.setPreviewSize(previewSize.width, previewSize.height);*/
if(display.getRotation() == Surface.ROTATION_0)
{
parameters.setPreviewSize(previewSize.height,previewSize.width);
camera.setDisplayOrientation(90);
}
if(display.getRotation() == Surface.ROTATION_90)
{
parameters.setPreviewSize(previewSize.width,previewSize.height);
}
if(display.getRotation() == Surface.ROTATION_180)
{
parameters.setPreviewSize(previewSize.height,previewSize.width);
}
if(display.getRotation() == Surface.ROTATION_270)
{
parameters.setPreviewSize(previewSize.width,previewSize.height);
camera.setDisplayOrientation(180);
}
/*camera.setParameters(parameters);*/
//here error occurs setParameters failed
try
{
camera.setPreviewDisplay(cameraSurfaceHolder);
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
try
{
camera = Camera.open();
}
catch(Exception e)
{
Toast.makeText(getApplicationContext(), "Device camera is not
working properly, please try after sometime.", Toast.LENGTH_LONG).show();
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder)
{
// TODO Auto-generated method stub
camera.stopPreview();
camera.release();
camera = null;
previewing = false;
}
}
我搜索了很多网站，Whosebug，我无法得到正确的答案，唯一的错误是相机的捕获视图请给我建议解决方案伙计们..我整天都被困在这上面..谢谢你提前。
感谢支持人员。我通过更改 Surface Changed 中的一些代码解决了这个问题。我已经删除了 ExifInterface 部分本身。刚刚在 surfacechanged 中完成下面的编码，图像按预期保存。： )
@Override
public void surfaceChanged(SurfaceHolder holder,
int format, int width, int height)
{
// TODO Auto-generated method stub
if(previewing)
{
camera.stopPreview();
previewing = false;
}
Camera.Parameters parameters = camera.getParameters();
Display display = ((WindowManager)getSystemService(WINDOW_SERVICE)).
getDefaultDisplay();
int or=cameraInfo.orientation;
// You need to choose the most appropriate previewSize for your app
// .... select one of previewSizes here
/* parameters.setPreviewSize(previewSize.width, previewSize.height);*/
if(display.getRotation() == Surface.ROTATION_0)
{
camera.setDisplayOrientation(90);
or=90;
}
if(display.getRotation() == Surface.ROTATION_180)
{
camera.setDisplayOrientation(270);
or=270;
}
if(display.getRotation() == Surface.ROTATION_270)
{
camera.setDisplayOrientation(180);
or=180;
}
parameters.setRotation(or);
camera.setParameters(parameters);
try
{
camera.setPreviewDisplay(cameraSurfaceHolder);
camera.startPreview();
previewing = true;
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}