I don't know that I'm doing wrong, everyrthings seems to be ok, but no picture is being saved in the telephone when I press capture.
the message picture has being save appears, but there's nothing on my gallery.
package com.mamlambo.mirror;
import java.io.File;
import java.io.FileOutputStream;
import com.mamlambo.mirror.R;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.pm.PackageManager;
import android.hardware.Camera;
import android.hardware.Camera.CameraInfo;
import android.hardware.Camera.PictureCallback;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.Toast;
public class MirrorActivity extends Activity implements PictureCallback {
private final static String DEBUG_TAG = "MirrorActivity";
private Camera mCam;
private MirrorView mCamPreview;
private int mCameraId = 0;
private FrameLayout mPreviewLayout;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// do we have a camera?
if (!getPackageManager()
.hasSystemFeature(PackageManager.FEATURE_CAMERA)) {
Toast.makeText(this, "No camera feature on this device",
Toast.LENGTH_LONG).show();
} else {
mCameraId = findFirstFrontFacingCamera();
if (mCameraId >= 0) {
mPreviewLayout = (FrameLayout) findViewById(R.id.camPreview);
mPreviewLayout.removeAllViews();
startCameraInLayout(mPreviewLayout, mCameraId);
Button takePic = (Button) findViewById(R.id.capture);
takePic.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
mCam.takePicture(null, null, MirrorActivity.this);
}
});
} else {
Toast.makeText(this, "No front facing camera found.",
Toast.LENGTH_LONG).show();
}
}
}
@SuppressLint("NewApi")
private int findFirstFrontFacingCamera() {
int foundId = -1;
// find the first front facing camera
int numCams = Camera.getNumberOfCameras();
for (int camId = 0; camId < numCams; camId++) {
CameraInfo info = new CameraInfo();
Camera.getCameraInfo(camId, info);
if (info.facing == CameraInfo.CAMERA_FACING_FRONT) {
Log.d(DEBUG_TAG, "Found front facing camera");
foundId = camId;
break;
}
}
return foundId;
}
private void startCameraInLayout(FrameLayout layout, int cameraId) {
// TODO pull this out of the UI thread.
mCam = Camera.open(cameraId);
if (mCam != null) {
mCamPreview = new MirrorView(this, mCam);
layout.addView(mCamPreview);
}
}
@Override
protected void onResume() {
super.onResume();
if (mCam == null && mPreviewLayout != null) {
mPreviewLayout.removeAllViews();
startCameraInLayout(mPreviewLayout, mCameraId);
}
}
@Override
protected void onPause() {
if (mCam != null) {
mCam.release();
mCam = null;
}
super.onPause();
}
public void onPictureTaken(byte[] data, Camera camera) {
File pictureFileDir = new File(
Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
"SimpleSelfCam");
if (!pictureFileDir.exists() && !pictureFileDir.mkdirs()) {
Log.d(DEBUG_TAG, "Can't create directory to save image");
Toast.makeText(this, "Can't make path to save pic.",
Toast.LENGTH_LONG).show();
return;
}
String filename = pictureFileDir.getPath() + File.separator
+ "latest_mug.jpg";
File pictureFile = new File(filename);
try {
FileOutputStream fos = new FileOutputStream(pictureFile);
fos.write(data);
fos.close();
Toast.makeText(this, "Image saved as latest_mug.jpg",
Toast.LENGTH_LONG).show();
} catch (Exception error) {
Log.d(DEBUG_TAG, "File not saved: " + error.getMessage());
Toast.makeText(this, "Can't save image.", Toast.LENGTH_LONG).show();
}
}
public class MirrorView extends SurfaceView implements
SurfaceHolder.Callback {
private SurfaceHolder mHolder;
private Camera mCamera;
public MirrorView(Context context, Camera camera) {
super(context);
mCamera = camera;
mHolder = getHolder();
mHolder.addCallback(this);
mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
public void surfaceCreated(SurfaceHolder holder) {
try {
mCamera.setPreviewDisplay(holder);
mCamera.startPreview();
} catch (Exception error) {
Log.d(DEBUG_TAG,
"Error starting mPreviewLayout: " + error.getMessage());
}
}
public void surfaceDestroyed(SurfaceHolder holder) {
}
public void surfaceChanged(SurfaceHolder holder, int format, int w,
int h) {
if (mHolder.getSurface() == null) {
return;
}
// can't make changes while mPreviewLayout is active
try {
mCamera.stopPreview();
} catch (Exception e) {
}
try {
// set rotation to match device orientation
setCameraDisplayOrientationAndSize();
// start up the mPreviewLayout
mCamera.setPreviewDisplay(mHolder);
mCamera.startPreview();
} catch (Exception error) {
Log.d(DEBUG_TAG,
"Error starting mPreviewLayout: " + error.getMessage());
}
}
public void setCameraDisplayOrientationAndSize() {
CameraInfo info = new CameraInfo();
Camera.getCameraInfo(mCameraId, info);
int rotation = getWindowManager().getDefaultDisplay().getRotation();
int degrees = rotation * 90;
/*
* // the above is just a shorter way of doing this, but could break
* if the values change 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;
} else {
result = (info.orientation - degrees + 360) % 360;
}
mCamera.setDisplayOrientation(result);
Camera.Size previewSize = mCam.getParameters().getPreviewSize();
if (result == 90 || result == 270) {
// swap - the physical camera itself doesn't rotate in relation
// to the screen ;)
mHolder.setFixedSize(previewSize.height, previewSize.width);
} else {
mHolder.setFixedSize(previewSize.width, previewSize.height);
}
}
}
}
