La vista previa de la cámara se está estirando
He escrito un código que solía mostrar la cámara. A continuación se muestra el código de mi archivo de diseño,
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<FrameLayout
android:id="@+id/previewLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
</FrameLayout>
<LinearLayout
android:id="@+id/startBar"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:background="@drawable/leftbarbg"
android:orientation="vertical"
android:gravity="center">
<ImageView
android:id="@+id/MuteBtn"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_weight="2"
android:src="@drawable/mutebtn" />
<ImageView
android:id="@+id/VideosBtn"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_weight="2"
android:src="@drawable/videosbtn" />
<ImageView
android:id="@+id/RecBtn"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_weight="3"
android:src="@drawable/action_rec_selected" />
<ImageView
android:id="@+id/SettingsBtn"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_weight="2"
android:src="@drawable/settingsbtn" />
<ImageView
android:id="@+id/ChatBtn"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_weight="2"
android:src="@drawable/chatbtn" >
</ImageView>
</LinearLayout>
<RelativeLayout
android:id="@+id/stopBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="3dp"
android:visibility="gone" >
<ImageView
android:id="@+id/StopBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/stopbtn" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="20dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="70dp"
android:layout_marginTop="20dp" >
<ImageView
android:id="@+id/MenuBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:src="@drawable/menubtn" />
<ImageView
android:id="@+id/LiveModeBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:src="@drawable/livemodeoff" />
<Chronometer
android:id="@+id/video_chronometer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:textSize="28sp"
android:textStyle="bold" />
</RelativeLayout>
</RelativeLayout>
Y este es mi código de CameraSurfaceview,
public class CameraSurfaceView extends SurfaceView implements SurfaceHolder.Callback {
private SurfaceHolder holder;
private Camera camera;
private MediaRecorder mediaRecorder;
private Boolean previewing;
private AutoFocusManager autoFocusManager;
private CameraDetectionObserver cameraDetectionObserver;
public CameraSurfaceView(Context context, AutoFocusManager autoFocusManager, CameraDetectionObserver cameraDetectionObserver) {
super(context);
this.holder = this.getHolder();
this.holder.addCallback(this);
this.holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
this.autoFocusManager= autoFocusManager;
this.cameraDetectionObserver= cameraDetectionObserver;
}
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
if (camera != null) {
Camera.Parameters parameters = camera.getParameters();
List< String > FlashModes = parameters.getSupportedFlashModes();
if (FlashModes.contains(Parameters.FLASH_MODE_AUTO)) {
parameters.setFlashMode(Parameters.FLASH_MODE_AUTO);
System.out.println("FLASH_MODE_AUTO");
}
List< String > WhiteBalance = parameters.getSupportedWhiteBalance();
if (WhiteBalance.contains(Parameters.WHITE_BALANCE_AUTO)) {
parameters.setFlashMode(Parameters.WHITE_BALANCE_AUTO);
System.out.println("WHITE_BALANCE_AUTO");
}
List< String > Antibanding = parameters.getSupportedAntibanding();
if (Antibanding.contains(Parameters.ANTIBANDING_AUTO)) {
parameters.setAntibanding(Camera.Parameters.ANTIBANDING_AUTO);
System.out.println("ANTIBANDING_AUTO");
}
List<Size> previews = parameters.getSupportedPreviewSizes();
int i = 0;
parameters.setPreviewSize( previews.get(4).width, previews.get(4).height );
camera.setParameters(parameters);
camera.startPreview();
autoFocusManager.startAutoFocus(camera);
}
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
if (camera != null) {
camera.release();
camera = null;
}
try {
camera = Camera.open(findBackFacingCamera());
camera.setPreviewDisplay(holder);
previewing = true;
cameraDetectionObserver.cameraInitializationStatus(true);
} catch (IOException e) {
camera.release();
camera = null;
}catch (Exception e) {
e.printStackTrace();
cameraDetectionObserver.cameraInitializationStatus(false);
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
if (previewing) {
camera.stopPreview();
camera.release();
camera = null;
previewing = false;
autoFocusManager.stopAutoFocus();
System.out.println("surface destroyed");
}
}
public void stopPreview(){
if (previewing) {
camera.stopPreview();
camera.release();
camera = null;
previewing = false;
autoFocusManager.stopAutoFocus();
System.out.println("surface destroyed");
}
}
public Camera getCamera()
{
return this.camera;
}
public MediaRecorder getMediaRecorder(){
mediaRecorder = new MediaRecorder();
camera.unlock();
mediaRecorder.setCamera(camera);
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
mediaRecorder.setPreviewDisplay(holder.getSurface());
mediaRecorder.setVideoFrameRate(29);
mediaRecorder.setVideoSize(ByteArraysForLogin.VideoDimention.vWidth,ByteArraysForLogin.VideoDimention.vHeight);
return mediaRecorder;
}
private int findBackFacingCamera() {
int cameraId = -1;
// Search for the back facing camera
int numberOfCameras = Camera.getNumberOfCameras();
for (int i = 0; i < numberOfCameras; i++) {
CameraInfo info = new CameraInfo();
Camera.getCameraInfo(i, info);
if (info.facing == CameraInfo.CAMERA_FACING_BACK) {
cameraId = i;
break;
}
}
return cameraId;
}
}
El código anterior funciona bien, pero muestra la vista previa de la cámara en formato extendido tanto en modo horizontal como vertical, como se muestra en la siguiente imagen.
Sin embargo, la imagen de la cámara de resultados no se estira, está en modo normal, solo la vista previa se estira.
PD Estoy haciendo esta pregunta después de intentaresta