/* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.camera; import com.android.camera.gallery.Cancelable; import com.android.camera.gallery.IImage; import com.android.camera.gallery.IImageList; import android.app.Activity; import android.content.ActivityNotFoundException; import android.content.BroadcastReceiver; import android.content.ContentResolver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.SharedPreferences; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Matrix; import android.hardware.Camera.PictureCallback; import android.location.Location; import android.location.LocationManager; import android.location.LocationProvider; import android.media.AudioManager; import android.media.ToneGenerator; import android.net.Uri; import android.os.Bundle; import android.os.Debug; import android.os.Environment; import android.os.Handler; import android.os.Message; import android.os.SystemClock; import android.preference.PreferenceManager; import android.provider.MediaStore; import android.text.format.DateFormat; import android.util.AttributeSet; import android.util.Log; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.MotionEvent; import android.view.OrientationEventListener; import android.view.SurfaceHolder; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.view.WindowManager; import android.view.MenuItem.OnMenuItemClickListener; import android.widget.ImageView; import android.widget.Toast; import android.widget.ZoomButtonsController; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.util.ArrayList; import java.util.StringTokenizer; /** * Activity of the Camera which used to see preview and take pictures. */ public class Camera extends Activity implements View.OnClickListener, ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, Switcher.OnSwitchListener { private static final String TAG = "camera"; private static final int CROP_MSG = 1; private static final int FIRST_TIME_INIT = 2; private static final int RESTART_PREVIEW = 3; private static final int CLEAR_SCREEN_DELAY = 4; private static final int SCREEN_DELAY = 2 * 60 * 1000; private static final int FOCUS_BEEP_VOLUME = 100; public static final int MENU_SWITCH_TO_VIDEO = 0; public static final int MENU_SWITCH_TO_CAMERA = 1; public static final int MENU_FLASH_SETTING = 2; public static final int MENU_FLASH_AUTO = 3; public static final int MENU_FLASH_ON = 4; public static final int MENU_FLASH_OFF = 5; public static final int MENU_SETTINGS = 6; public static final int MENU_GALLERY_PHOTOS = 7; public static final int MENU_GALLERY_VIDEOS = 8; public static final int MENU_SAVE_SELECT_PHOTOS = 30; public static final int MENU_SAVE_NEW_PHOTO = 31; public static final int MENU_SAVE_GALLERY_PHOTO = 34; public static final int MENU_SAVE_GALLERY_VIDEO_PHOTO = 35; public static final int MENU_SAVE_CAMERA_DONE = 36; public static final int MENU_SAVE_CAMERA_VIDEO_DONE = 37; private android.hardware.Camera.Parameters mParameters; private int mZoomIndex = 0; // The index of the current zoom value. private String[] mZoomValues; // All possible zoom values. // The parameter strings to communicate with camera driver. public static final String PARM_ZOOM = "zoom"; public static final String PARM_PICTURE_SIZE = "picture-size"; public static final String PARM_JPEG_QUALITY = "jpeg-quality"; public static final String PARM_ROTATION = "rotation"; public static final String PARM_GPS_LATITUDE = "gps-latitude"; public static final String PARM_GPS_LONGITUDE = "gps-longitude"; public static final String PARM_GPS_ALTITUDE = "gps-altitude"; public static final String PARM_GPS_TIMESTAMP = "gps-timestamp"; public static final String SUPPORTED_ZOOM = "zoom-values"; public static final String SUPPORTED_PICTURE_SIZE = "picture-size-values"; private OrientationEventListener mOrientationListener; private int mLastOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; private SharedPreferences mPreferences; private static final int IDLE = 1; private static final int SNAPSHOT_IN_PROGRESS = 2; private static final boolean SWITCH_CAMERA = true; private static final boolean SWITCH_VIDEO = false; private int mStatus = IDLE; private static final String sTempCropFilename = "crop-temp"; private android.hardware.Camera mCameraDevice; private VideoPreview mSurfaceView; private SurfaceHolder mSurfaceHolder = null; private ShutterButton mShutterButton; private FocusRectangle mFocusRectangle; private ImageView mGpsIndicator; private ToneGenerator mFocusToneGenerator; private ZoomButtonsController mZoomButtons; // mPostCaptureAlert, mLastPictureButton, mThumbController // are non-null only if isImageCaptureIntent() is true. private ImageView mLastPictureButton; private ThumbnailController mThumbController; private int mViewFinderWidth, mViewFinderHeight; private ImageCapture mImageCapture = null; private boolean mPreviewing; private boolean mPausing; private boolean mFirstTimeInitialized; private boolean mIsImageCaptureIntent; private boolean mRecordLocation; private static final int FOCUS_NOT_STARTED = 0; private static final int FOCUSING = 1; private static final int FOCUSING_SNAP_ON_FINISH = 2; private static final int FOCUS_SUCCESS = 3; private static final int FOCUS_FAIL = 4; private int mFocusState = FOCUS_NOT_STARTED; private ContentResolver mContentResolver; private boolean mDidRegister = false; private final ArrayList mGalleryItems = new ArrayList(); private LocationManager mLocationManager = null; // Use OneShotPreviewCallback to measure the time between // JpegPictureCallback and preview. private final OneShotPreviewCallback mOneShotPreviewCallback = new OneShotPreviewCallback(); private final ShutterCallback mShutterCallback = new ShutterCallback(); private final RawPictureCallback mRawPictureCallback = new RawPictureCallback(); private final AutoFocusCallback mAutoFocusCallback = new AutoFocusCallback(); private long mFocusStartTime; private long mFocusCallbackTime; private long mCaptureStartTime; private long mShutterCallbackTime; private long mRawPictureCallbackTime; private long mJpegPictureCallbackTime; private int mPicturesRemaining; //Add the camera latency time public static long mAutoFocusTime; public static long mShutterLag; public static long mShutterAndRawPictureCallbackTime; public static long mJpegPictureCallbackTimeLag; public static long mRawPictureAndJpegPictureCallbackTime; // Focus mode. Options are pref_camera_focusmode_entryvalues. private String mFocusMode; private final Handler mHandler = new MainHandler(); private interface Capturer { Uri getLastCaptureUri(); void onSnap(); } /** * This Handler is used to post message back onto the main thread of the * application */ private class MainHandler extends Handler { @Override public void handleMessage(Message msg) { switch (msg.what) { case RESTART_PREVIEW: { restartPreview(); break; } case CLEAR_SCREEN_DELAY: { getWindow().clearFlags( WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); break; } case FIRST_TIME_INIT: { initializeFirstTime(); break; } } } } // Snapshots can only be taken after this is called. It should be called // once only. We could have done these things in onCreate() but we want to // make preview screen appear as soon as possible. void initializeFirstTime() { if (mFirstTimeInitialized) return; // Create orientation listenter. This should be done first because it // takes some time to get first orientation. mOrientationListener = new OrientationEventListener(Camera.this) { @Override public void onOrientationChanged(int orientation) { // We keep the last known orientation. So if the user // first orient the camera then point the camera to // floor/sky, we still have the correct orientation. if (orientation != ORIENTATION_UNKNOWN) { mLastOrientation = orientation; } } }; mOrientationListener.enable(); // Initialize location sevice. mLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); readPreference(); if (mRecordLocation) startReceivingLocationUpdates(); // Initialize last picture button. mContentResolver = getContentResolver(); if (!mIsImageCaptureIntent) { findViewById(R.id.camera_switch).setOnClickListener(this); mLastPictureButton = (ImageView) findViewById(R.id.review_thumbnail); mLastPictureButton.setOnClickListener(this); mThumbController = new ThumbnailController( mLastPictureButton, mContentResolver); mThumbController.loadData(ImageManager.getLastImageThumbPath()); // Update last image thumbnail. updateThumbnailButton(); } // Initialize shutter button. mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); mShutterButton.setOnShutterButtonListener(this); mShutterButton.setVisibility(View.VISIBLE); mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); updateFocusIndicator(); // Initialize GPS indicator. mGpsIndicator = (ImageView) findViewById(R.id.gps_indicator); mGpsIndicator.setImageResource(R.drawable.ic_camera_sym_gps); ImageManager.ensureOSXCompatibleFolder(); calculatePicturesRemaining(); installIntentFilter(); initializeFocusTone(); // Disable zoom until driver is ready. // TODO: enable this. //initializeZoom(); mFirstTimeInitialized = true; } private void updateThumbnailButton() { if (!mThumbController.isUriValid()) { updateLastImage(); } mThumbController.updateDisplayIfNeeded(); } // If the activity is paused and resumed, this method will be called in // onResume. void initializeSecondTime() { // Start orientation listener as soon as possible because it takes // some time to get first orientation. mOrientationListener.enable(); // Start location update if needed. readPreference(); if (mRecordLocation) startReceivingLocationUpdates(); installIntentFilter(); initializeFocusTone(); if (!mIsImageCaptureIntent) { updateThumbnailButton(); } } private void initializeZoom() { String zoomValuesStr = mParameters.get(SUPPORTED_ZOOM); if (zoomValuesStr == null) return; mZoomValues = getZoomValues(zoomValuesStr); if (mZoomValues == null) return; mZoomButtons = new ZoomButtonsController(mSurfaceView); mZoomButtons.setAutoDismissed(true); mZoomButtons.setOnZoomListener( new ZoomButtonsController.OnZoomListener() { public void onVisibilityChanged(boolean visible) { if (visible) { updateZoomButtonsEnabled(); } } public void onZoom(boolean zoomIn) { if (zoomIn) { zoomIn(); } else { zoomOut(); } updateZoomButtonsEnabled(); } }); } private void zoomIn() { if (mZoomIndex < mZoomValues.length - 1) { mZoomIndex++; mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); mCameraDevice.setParameters(mParameters); } } private void zoomOut() { if (mZoomIndex > 0) { mZoomIndex--; mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); mCameraDevice.setParameters(mParameters); } } private void updateZoomButtonsEnabled() { mZoomButtons.setZoomInEnabled(mZoomIndex < mZoomValues.length - 1); mZoomButtons.setZoomOutEnabled(mZoomIndex > 0); } private String[] getZoomValues(String zoomValuesStr) { ArrayList list = new ArrayList(); String[] zoomValues = null; StringTokenizer tokenizer = new StringTokenizer(zoomValuesStr, ","); while (tokenizer.hasMoreElements()) { list.add(tokenizer.nextToken()); } if (list.size() > 0) { zoomValues = list.toArray(new String[list.size()]); } return zoomValues; } LocationListener [] mLocationListeners = new LocationListener[] { new LocationListener(LocationManager.GPS_PROVIDER), new LocationListener(LocationManager.NETWORK_PROVIDER) }; private final BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) { // SD card available updateStorageHint(calculatePicturesRemaining()); } else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED) || action.equals(Intent.ACTION_MEDIA_CHECKING)) { // SD card unavailable mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; updateStorageHint(mPicturesRemaining); } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { Toast.makeText(Camera.this, getResources().getString(R.string.wait), 5000); } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { updateStorageHint(); } } }; private class LocationListener implements android.location.LocationListener { Location mLastLocation; boolean mValid = false; String mProvider; public LocationListener(String provider) { mProvider = provider; mLastLocation = new Location(mProvider); } public void onLocationChanged(Location newLocation) { if (newLocation.getLatitude() == 0.0 && newLocation.getLongitude() == 0.0) { // Hack to filter out 0.0,0.0 locations return; } // If GPS is available before start camera, we won't get status // update so update GPS indicator when we receive data. if (mRecordLocation && LocationManager.GPS_PROVIDER.equals(mProvider)) { mGpsIndicator.setVisibility(View.VISIBLE); } mLastLocation.set(newLocation); mValid = true; } public void onProviderEnabled(String provider) { } public void onProviderDisabled(String provider) { mValid = false; } public void onStatusChanged( String provider, int status, Bundle extras) { switch(status) { case LocationProvider.OUT_OF_SERVICE: case LocationProvider.TEMPORARILY_UNAVAILABLE: { mValid = false; if (mRecordLocation && LocationManager.GPS_PROVIDER.equals(provider)) { mGpsIndicator.setVisibility(View.INVISIBLE); } break; } } } public Location current() { return mValid ? mLastLocation : null; } } private final class OneShotPreviewCallback implements android.hardware.Camera.PreviewCallback { public void onPreviewFrame(byte[] data, android.hardware.Camera camera) { long now = System.currentTimeMillis(); if (mJpegPictureCallbackTime != 0) { mJpegPictureCallbackTimeLag = now - mJpegPictureCallbackTime; Log.v(TAG, "mJpegPictureCallbackTimeLag = " + mJpegPictureCallbackTimeLag + "ms"); mJpegPictureCallbackTime = 0; } } } private final class ShutterCallback implements android.hardware.Camera.ShutterCallback { public void onShutter() { mShutterCallbackTime = System.currentTimeMillis(); mShutterLag = mShutterCallbackTime - mCaptureStartTime; Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); clearFocusState(); } } private final class RawPictureCallback implements PictureCallback { public void onPictureTaken( byte [] rawData, android.hardware.Camera camera) { mRawPictureCallbackTime = System.currentTimeMillis(); mShutterAndRawPictureCallbackTime = mRawPictureCallbackTime - mShutterCallbackTime; Log.v(TAG, "mShutterAndRawPictureCallbackTime = " + mShutterAndRawPictureCallbackTime + "ms"); } } private final class JpegPictureCallback implements PictureCallback { Location mLocation; public JpegPictureCallback(Location loc) { mLocation = loc; } public void onPictureTaken( final byte [] jpegData, final android.hardware.Camera camera) { if (mPausing) { return; } mJpegPictureCallbackTime = System.currentTimeMillis(); mRawPictureAndJpegPictureCallbackTime = mJpegPictureCallbackTime - mRawPictureCallbackTime; Log.v(TAG, "mRawPictureAndJpegPictureCallbackTime = " + mRawPictureAndJpegPictureCallbackTime +"ms"); mImageCapture.storeImage(jpegData, camera, mLocation); if (!mIsImageCaptureIntent) { long delay = 1200 - ( System.currentTimeMillis() - mRawPictureCallbackTime); mHandler.sendEmptyMessageDelayed( RESTART_PREVIEW, Math.max(delay, 0)); } } } private final class AutoFocusCallback implements android.hardware.Camera.AutoFocusCallback { public void onAutoFocus( boolean focused, android.hardware.Camera camera) { mFocusCallbackTime = System.currentTimeMillis(); mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); if (mFocusState == FOCUSING_SNAP_ON_FINISH) { // Take the picture no matter focus succeeds or fails. No need // to play the AF sound if we're about to play the shutter // sound. if (focused) { mFocusState = FOCUS_SUCCESS; } else { mFocusState = FOCUS_FAIL; } mImageCapture.onSnap(); } else if (mFocusState == FOCUSING) { // User is half-pressing the focus key. Play the focus tone. // Do not take the picture now. ToneGenerator tg = mFocusToneGenerator; if (tg != null) { tg.startTone(ToneGenerator.TONE_PROP_BEEP2); } if (focused) { mFocusState = FOCUS_SUCCESS; } else { mFocusState = FOCUS_FAIL; } } else if (mFocusState == FOCUS_NOT_STARTED) { // User has released the focus key before focus completes. // Do nothing. } updateFocusIndicator(); } } private class ImageCapture implements Capturer { private boolean mCancel = false; private Uri mLastContentUri; private Cancelable mAddImageCancelable; Bitmap mCaptureOnlyBitmap; private void storeImage(byte[] data, Location loc) { try { long dateTaken = System.currentTimeMillis(); String name = createName(dateTaken) + ".jpg"; mLastContentUri = ImageManager.addImage( mContentResolver, name, dateTaken, loc, // location for the database goes here 0, // the dsp will use the right orientation so // don't "double set it" ImageManager.CAMERA_IMAGE_BUCKET_NAME, name); if (mLastContentUri == null) { // this means we got an error mCancel = true; } if (!mCancel) { mAddImageCancelable = ImageManager.storeImage( mLastContentUri, mContentResolver, 0, null, data); mAddImageCancelable.get(); mAddImageCancelable = null; ImageManager.setImageSize(mContentResolver, mLastContentUri, new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, name).length()); } } catch (Exception ex) { Log.e(TAG, "Exception while compressing image.", ex); } } public void storeImage( final byte[] data, android.hardware.Camera camera, Location loc) { if (!mIsImageCaptureIntent) { storeImage(data, loc); sendBroadcast(new Intent( "com.android.camera.NEW_PICTURE", mLastContentUri)); setLastPictureThumb(data, mImageCapture.getLastCaptureUri()); mThumbController.updateDisplayIfNeeded(); } else { BitmapFactory.Options options = new BitmapFactory.Options(); options.inSampleSize = 4; mCaptureOnlyBitmap = BitmapFactory.decodeByteArray( data, 0, data.length, options); showPostCaptureAlert(); } } /** * Initiate the capture of an image. */ public void initiate() { if (mCameraDevice == null) { return; } mCancel = false; capture(); } public Uri getLastCaptureUri() { return mLastContentUri; } public Bitmap getLastBitmap() { return mCaptureOnlyBitmap; } private void capture() { mCaptureOnlyBitmap = null; int orientation = mLastOrientation; if (orientation != OrientationEventListener.ORIENTATION_UNKNOWN) { orientation += 90; } orientation = ImageManager.roundOrientation(orientation); Log.v(TAG, "mLastOrientation = " + mLastOrientation + ", orientation = " + orientation); mParameters.set(PARM_ROTATION, orientation); Location loc = mRecordLocation ? getCurrentLocation() : null; mParameters.remove(PARM_GPS_LATITUDE); mParameters.remove(PARM_GPS_LONGITUDE); mParameters.remove(PARM_GPS_ALTITUDE); mParameters.remove(PARM_GPS_TIMESTAMP); if (loc != null) { double lat = loc.getLatitude(); double lon = loc.getLongitude(); boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); if (hasLatLon) { String latString = String.valueOf(lat); String lonString = String.valueOf(lon); mParameters.set(PARM_GPS_LATITUDE, latString); mParameters.set(PARM_GPS_LONGITUDE, lonString); if (loc.hasAltitude()) { mParameters.set(PARM_GPS_ALTITUDE, String.valueOf(loc.getAltitude())); } else { // for NETWORK_PROVIDER location provider, we may have // no altitude information, but the driver needs it, so // we fake one. mParameters.set(PARM_GPS_ALTITUDE, "0"); } if (loc.getTime() != 0) { // Location.getTime() is UTC in milliseconds. // gps-timestamp is UTC in seconds. long utcTimeSeconds = loc.getTime() / 1000; mParameters.set(PARM_GPS_TIMESTAMP, String.valueOf(utcTimeSeconds)); } } else { loc = null; } } mCameraDevice.setParameters(mParameters); mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, new JpegPictureCallback(loc)); mPreviewing = false; } public void onSnap() { // If we are already in the middle of taking a snapshot then ignore. if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { return; } mCaptureStartTime = System.currentTimeMillis(); // Don't check the filesystem here, we can't afford the latency. // Instead, check the cached value which was calculated when the // preview was restarted. if (mPicturesRemaining < 1) { updateStorageHint(mPicturesRemaining); return; } mStatus = SNAPSHOT_IN_PROGRESS; mImageCapture.initiate(); } private void clearLastBitmap() { if (mCaptureOnlyBitmap != null) { mCaptureOnlyBitmap.recycle(); mCaptureOnlyBitmap = null; } } } private void setLastPictureThumb(byte[] data, Uri uri) { BitmapFactory.Options options = new BitmapFactory.Options(); options.inSampleSize = 16; Bitmap lastPictureThumb = BitmapFactory.decodeByteArray(data, 0, data.length, options); mThumbController.setData(uri, lastPictureThumb); } private static String createName(long dateTaken) { return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString(); } public static Matrix getDisplayMatrix(Bitmap b, ImageView v) { Matrix m = new Matrix(); float bw = b.getWidth(); float bh = b.getHeight(); float vw = v.getWidth(); float vh = v.getHeight(); float scale, x, y; if (bw * vh > vw * bh) { scale = vh / bh; x = (vw - scale * bw) * 0.5F; y = 0; } else { scale = vw / bw; x = 0; y = (vh - scale * bh) * 0.5F; } m.setScale(scale, scale, 0.5F, 0.5F); m.postTranslate(x, y); return m; } @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); /* * To reduce startup time, we open camera device in another thread. * We make sure the camera is opened at the end of onCreate. */ Thread openCameraThread = new Thread(new Runnable() { public void run() { mCameraDevice = CameraHolder.instance().open(); } }); openCameraThread.start(); mPreferences = PreferenceManager.getDefaultSharedPreferences(this); Window win = getWindow(); win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); setContentView(R.layout.camera); mSurfaceView = (VideoPreview) findViewById(R.id.camera_preview); // don't set mSurfaceHolder here. We have it set ONLY within // surfaceChanged / surfaceDestroyed, other parts of the code // assume that when it is set, the surface is also set. SurfaceHolder holder = mSurfaceView.getHolder(); holder.addCallback(this); holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); mIsImageCaptureIntent = isImageCaptureIntent(); LayoutInflater inflater = getLayoutInflater(); ViewGroup rootView =(ViewGroup) findViewById(R.id.camera); if (mIsImageCaptureIntent) { View controlBar = inflater.inflate( R.layout.attach_camera_control, rootView); controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); controlBar.findViewById(R.id.btn_done).setOnClickListener(this); } else { inflater.inflate(R.layout.camera_control, rootView); Switcher switcher = ((Switcher) findViewById(R.id.camera_switch)); switcher.setSwitch(SWITCH_CAMERA); switcher.setOnSwitchListener(this); } // Make sure the services are loaded. try { openCameraThread.join(); } catch (InterruptedException ex) { // ignore } } @Override public void onStart() { super.onStart(); Thread t = new Thread(new Runnable() { public void run() { final boolean storageOK = calculatePicturesRemaining() > 0; if (!storageOK) { mHandler.post(new Runnable() { public void run() { updateStorageHint(mPicturesRemaining); } }); } } }); t.start(); } public void onClick(View v) { switch (v.getId()) { case R.id.btn_retake: hidePostCaptureAlert(); restartPreview(); break; case R.id.review_thumbnail: if (isCameraIdle()) { viewLastImage(); } break; case R.id.btn_done: doAttach(); break; case R.id.btn_cancel: doCancel(); } } private void doAttach() { if (mPausing) { return; } Bitmap bitmap = mImageCapture.getLastBitmap(); String cropValue = null; Uri saveUri = null; Bundle myExtras = getIntent().getExtras(); if (myExtras != null) { saveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); cropValue = myExtras.getString("crop"); } if (cropValue == null) { // First handle the no crop case -- just return the value. If the // caller specifies a "save uri" then write the data to it's // stream. Otherwise, pass back a scaled down version of the bitmap // directly in the extras. if (saveUri != null) { OutputStream outputStream = null; try { outputStream = mContentResolver.openOutputStream(saveUri); bitmap.compress(Bitmap.CompressFormat.JPEG, 75, outputStream); outputStream.close(); setResult(RESULT_OK); finish(); } catch (IOException ex) { // ignore exception } finally { if (outputStream != null) { try { outputStream.close(); } catch (IOException ex) { // ignore exception } } } } else { float scale = .5F; Matrix m = new Matrix(); m.setScale(scale, scale); bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), m, true); setResult(RESULT_OK, new Intent("inline-data").putExtra("data", bitmap)); finish(); } } else { // Save the image to a temp file and invoke the cropper Uri tempUri = null; FileOutputStream tempStream = null; try { File path = getFileStreamPath(sTempCropFilename); path.delete(); tempStream = openFileOutput(sTempCropFilename, 0); bitmap.compress(Bitmap.CompressFormat.JPEG, 75, tempStream); tempStream.close(); tempUri = Uri.fromFile(path); } catch (FileNotFoundException ex) { setResult(Activity.RESULT_CANCELED); finish(); return; } catch (IOException ex) { setResult(Activity.RESULT_CANCELED); finish(); return; } finally { if (tempStream != null) { try { tempStream.close(); } catch (IOException ex) { // ignore exception } } } Bundle newExtras = new Bundle(); if (cropValue.equals("circle")) { newExtras.putString("circleCrop", "true"); } if (saveUri != null) { newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, saveUri); } else { newExtras.putBoolean("return-data", true); } Intent cropIntent = new Intent(); cropIntent.setClass(Camera.this, CropImage.class); cropIntent.setData(tempUri); cropIntent.putExtras(newExtras); startActivityForResult(cropIntent, CROP_MSG); } } private void doCancel() { setResult(RESULT_CANCELED, new Intent()); finish(); } public void onShutterButtonFocus(ShutterButton button, boolean pressed) { if (mPausing) { return; } switch (button.getId()) { case R.id.shutter_button: doFocus(pressed); break; } } public void onShutterButtonClick(ShutterButton button) { if (mPausing) { return; } switch (button.getId()) { case R.id.shutter_button: doSnap(); break; } } private void updateStorageHint() { updateStorageHint(MenuHelper.calculatePicturesRemaining()); } private OnScreenHint mStorageHint; private void updateStorageHint(int remaining) { String noStorageText = null; if (remaining == MenuHelper.NO_STORAGE_ERROR) { String state = Environment.getExternalStorageState(); if (state == Environment.MEDIA_CHECKING) { noStorageText = getString(R.string.preparing_sd); } else { noStorageText = getString(R.string.no_storage); } } else if (remaining < 1) { noStorageText = getString(R.string.not_enough_space); } if (noStorageText != null) { if (mStorageHint == null) { mStorageHint = OnScreenHint.makeText(this, noStorageText); } else { mStorageHint.setText(noStorageText); } mStorageHint.show(); } else if (mStorageHint != null) { mStorageHint.cancel(); mStorageHint = null; } } void installIntentFilter() { // install an intent filter to receive SD card related events. IntentFilter intentFilter = new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); intentFilter.addDataScheme("file"); registerReceiver(mReceiver, intentFilter); mDidRegister = true; } void initializeFocusTone() { // Initialize focus tone generator. try { mFocusToneGenerator = new ToneGenerator( AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); } catch (Throwable ex) { Log.w(TAG, "Exception caught while creating tone generator: ", ex); mFocusToneGenerator = null; } } void readPreference() { mRecordLocation = mPreferences.getBoolean( "pref_camera_recordlocation_key", false); mFocusMode = mPreferences.getString( CameraSettings.KEY_FOCUS_MODE, getString(R.string.pref_camera_focusmode_default)); } @Override public void onResume() { super.onResume(); mPausing = false; mJpegPictureCallbackTime = 0; mImageCapture = new ImageCapture(); if (mSurfaceHolder != null) { // If surface holder is created, start the preview now. Otherwise, // wait until surfaceChanged. mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); startPreview(); // If first time initialization is not finished, put it in the // message queue. if (!mFirstTimeInitialized) { mHandler.sendEmptyMessage(FIRST_TIME_INIT); } else { initializeSecondTime(); } } mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); } private static ImageManager.DataLocation dataLocation() { return ImageManager.DataLocation.EXTERNAL; } @Override protected void onPause() { mPausing = true; stopPreview(); // Close the camera now because other activities may need to use it. closeCamera(); if (mFirstTimeInitialized) { mOrientationListener.disable(); mGpsIndicator.setVisibility(View.INVISIBLE); if (!mIsImageCaptureIntent) { mThumbController.storeData( ImageManager.getLastImageThumbPath()); } hidePostCaptureAlert(); } if (mDidRegister) { unregisterReceiver(mReceiver); mDidRegister = false; } stopReceivingLocationUpdates(); if (mFocusToneGenerator != null) { mFocusToneGenerator.release(); mFocusToneGenerator = null; } if (mStorageHint != null) { mStorageHint.cancel(); mStorageHint = null; } // If we are in an image capture intent and has taken // a picture, we just clear it in onPause. mImageCapture.clearLastBitmap(); mImageCapture = null; // This is necessary to make the ZoomButtonsController unregister // its configuration change receiver. if (mZoomButtons != null) { mZoomButtons.setVisible(false); } // Remove the messages in the event queue. mHandler.removeMessages(CLEAR_SCREEN_DELAY); mHandler.removeMessages(RESTART_PREVIEW); mHandler.removeMessages(FIRST_TIME_INIT); super.onPause(); } @Override protected void onActivityResult( int requestCode, int resultCode, Intent data) { switch (requestCode) { case CROP_MSG: { Intent intent = new Intent(); if (data != null) { Bundle extras = data.getExtras(); if (extras != null) { intent.putExtras(extras); } } setResult(resultCode, intent); finish(); File path = getFileStreamPath(sTempCropFilename); path.delete(); break; } } } private void autoFocus() { // Initiate autofocus only when preview is started and snapshot is not // in progress. if (isCameraIdle() && mPreviewing) { Log.v(TAG, "Start autofocus."); if (mZoomButtons != null) mZoomButtons.setVisible(false); mFocusStartTime = System.currentTimeMillis(); mFocusState = FOCUSING; updateFocusIndicator(); mCameraDevice.autoFocus(mAutoFocusCallback); } } private void clearFocusState() { mFocusState = FOCUS_NOT_STARTED; updateFocusIndicator(); } private void updateFocusIndicator() { if (mFocusRectangle == null) return; if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { mFocusRectangle.showStart(); } else if (mFocusState == FOCUS_SUCCESS) { mFocusRectangle.showSuccess(); } else if (mFocusState == FOCUS_FAIL) { mFocusRectangle.showFail(); } else { mFocusRectangle.clear(); } } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); switch (keyCode) { case KeyEvent.KEYCODE_BACK: if (!isCameraIdle()) { // ignore backs while we're taking a picture return true; } break; case KeyEvent.KEYCODE_FOCUS: if (mFirstTimeInitialized && event.getRepeatCount() == 0) { doFocus(true); } return true; case KeyEvent.KEYCODE_CAMERA: if (mFirstTimeInitialized && event.getRepeatCount() == 0) { doSnap(); } return true; case KeyEvent.KEYCODE_DPAD_CENTER: // If we get a dpad center event without any focused view, move // the focus to the shutter button and press it. if (mFirstTimeInitialized && event.getRepeatCount() == 0) { // Start auto-focus immediately to reduce shutter lag. After // the shutter button gets the focus, doFocus() will be // called again but it is fine. doFocus(true); if (mShutterButton.isInTouchMode()) { mShutterButton.requestFocusFromTouch(); } else { mShutterButton.requestFocus(); } mShutterButton.setPressed(true); } return true; } return super.onKeyDown(keyCode, event); } @Override public boolean onKeyUp(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_FOCUS: if (mFirstTimeInitialized) { doFocus(false); } return true; } return super.onKeyUp(keyCode, event); } @Override public boolean onTouchEvent(MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: // Show zoom buttons only when preview is started and snapshot // is not in progress. mZoomButtons may be null if it is not // initialized. if (!mPausing && isCameraIdle() && mPreviewing && mZoomButtons != null) { mZoomButtons.setVisible(true); } return true; } return super.onTouchEvent(event); } private void doSnap() { // If the user has half-pressed the shutter and focus is completed, we // can take the photo right away. If the focus mode is infinity, we can // also take the photo. if (mFocusMode.equals(getString( R.string.pref_camera_focusmode_value_infinity)) || (mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL)) { if (mZoomButtons != null) mZoomButtons.setVisible(false); mImageCapture.onSnap(); } else if (mFocusState == FOCUSING) { // Half pressing the shutter (i.e. the focus button event) will // already have requested AF for us, so just request capture on // focus here. mFocusState = FOCUSING_SNAP_ON_FINISH; } else if (mFocusState == FOCUS_NOT_STARTED) { // Focus key down event is dropped for some reasons. Just ignore. } } private void doFocus(boolean pressed) { // Do the focus if the mode is auto. No focus needed in infinity mode. if (mFocusMode.equals(getString( R.string.pref_camera_focusmode_value_auto))) { if (pressed) { // Focus key down. autoFocus(); } else { // Focus key up. if (mFocusState != FOCUSING_SNAP_ON_FINISH) { // User releases half-pressed focus key. clearFocusState(); } } } } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { // Make sure we have a surface in the holder before proceeding. if (holder.getSurface() == null) { Log.d(TAG, "holder.getSurface() == null"); return; } mSurfaceHolder = holder; mViewFinderWidth = w; mViewFinderHeight = h; // Sometimes surfaceChanged is called after onPause. Ignore it. if (mPausing) return; // Start the preview. startPreview(); // If first time initialization is not finished, send a message to do // it later. We want to finish surfaceChanged as soon as possible to let // user see preview first. if (!mFirstTimeInitialized) { mHandler.sendEmptyMessage(FIRST_TIME_INIT); } else { initializeSecondTime(); } } public void surfaceCreated(SurfaceHolder holder) { } public void surfaceDestroyed(SurfaceHolder holder) { stopPreview(); mSurfaceHolder = null; } private void closeCamera() { if (mCameraDevice != null) { CameraHolder.instance().release(); mCameraDevice = null; mPreviewing = false; } } private boolean ensureCameraDevice() { if (mCameraDevice == null) { mCameraDevice = CameraHolder.instance().open(); } return mCameraDevice != null; } private void updateLastImage() { IImageList list = ImageManager.allImages( mContentResolver, dataLocation(), ImageManager.INCLUDE_IMAGES, ImageManager.SORT_ASCENDING, ImageManager.CAMERA_IMAGE_BUCKET_ID); int count = list.getCount(); if (count > 0) { IImage image = list.getImageAt(count - 1); Uri uri = image.fullSizeImageUri(); mThumbController.setData(uri, image.miniThumbBitmap()); } else { mThumbController.setData(null, null); } list.deactivate(); } private void restartPreview() { // make sure the surfaceview fills the whole screen when previewing mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); startPreview(); // Calculate this in advance of each shot so we don't add to shutter // latency. It's true that someone else could write to the SD card in // the mean time and fill it, but that could have happened between the // shutter press and saving the JPEG too. calculatePicturesRemaining(); } private void startPreview() { if (mPausing) return; if (!ensureCameraDevice()) return; if (mSurfaceHolder == null) return; if (isFinishing()) return; // If we're previewing already, stop the preview first (this will blank // the screen). if (mPreviewing) stopPreview(); // this blanks the screen if the surface changed, no-op otherwise try { mCameraDevice.setPreviewDisplay(mSurfaceHolder); } catch (Throwable ex) { closeCamera(); throw new RuntimeException("setPreviewDisplay failed", ex); } setCameraParameter(); final long wallTimeStart = SystemClock.elapsedRealtime(); final long threadTimeStart = Debug.threadCpuTimeNanos(); // Set one shot preview callback for latency measurement. mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); try { Log.v(TAG, "startPreview"); mCameraDevice.startPreview(); } catch (Throwable ex) { closeCamera(); throw new RuntimeException("startPreview failed", ex); } mPreviewing = true; mStatus = IDLE; long threadTimeEnd = Debug.threadCpuTimeNanos(); long wallTimeEnd = SystemClock.elapsedRealtime(); if ((wallTimeEnd - wallTimeStart) > 3000) { Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) + " ms. Thread time was" + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); } } private void stopPreview() { if (mCameraDevice != null && mPreviewing) { Log.v(TAG, "stopPreview"); mCameraDevice.stopPreview(); } mPreviewing = false; // If auto focus was in progress, it would have been canceled. clearFocusState(); } private void setCameraParameter() { // request the preview size, the hardware may not honor it, // if we depended on it we would have to query the size again mParameters = mCameraDevice.getParameters(); mParameters.setPreviewSize(mViewFinderWidth, mViewFinderHeight); // Set picture size parameter. String pictureSize = mPreferences.getString( CameraSettings.KEY_PICTURE_SIZE, getString(R.string.pref_camera_picturesize_default)); mParameters.set(PARM_PICTURE_SIZE, pictureSize); // Set JPEG quality parameter. String jpegQuality = mPreferences.getString( CameraSettings.KEY_JPEG_QUALITY, getString(R.string.pref_camera_jpegquality_default)); mParameters.set(PARM_JPEG_QUALITY, jpegQuality); // Set zoom. if (mZoomValues != null) { mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); } mCameraDevice.setParameters(mParameters); } void gotoGallery() { MenuHelper.gotoCameraImageGallery(this); } private void viewLastImage() { if (mThumbController.isUriValid()) { Uri targetUri = mThumbController.getUri(); targetUri = targetUri.buildUpon().appendQueryParameter( "bucketId", ImageManager.CAMERA_IMAGE_BUCKET_ID).build(); Intent intent = new Intent(this, ReviewImage.class); intent.setData(targetUri); intent.putExtra(MediaStore.EXTRA_FULL_SCREEN, true); intent.putExtra(MediaStore.EXTRA_SHOW_ACTION_ICONS, true); intent.putExtra("com.android.camera.ReviewMode", true); try { startActivity(intent); } catch (ActivityNotFoundException ex) { Log.e(TAG, "review image fail", ex); } } else { Log.e(TAG, "Can't view last image."); } } private void startReceivingLocationUpdates() { if (mLocationManager != null) { try { mLocationManager.requestLocationUpdates( LocationManager.NETWORK_PROVIDER, 1000, 0F, mLocationListeners[1]); } catch (java.lang.SecurityException ex) { Log.i(TAG, "fail to request location update, ignore", ex); } catch (IllegalArgumentException ex) { Log.d(TAG, "provider does not exist " + ex.getMessage()); } try { mLocationManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 1000, 0F, mLocationListeners[0]); } catch (java.lang.SecurityException ex) { Log.i(TAG, "fail to request location update, ignore", ex); } catch (IllegalArgumentException ex) { Log.d(TAG, "provider does not exist " + ex.getMessage()); } } } private void stopReceivingLocationUpdates() { if (mLocationManager != null) { for (int i = 0; i < mLocationListeners.length; i++) { try { mLocationManager.removeUpdates(mLocationListeners[i]); } catch (Exception ex) { Log.i(TAG, "fail to remove location listners, ignore", ex); } } } } private Location getCurrentLocation() { // go in best to worst order for (int i = 0; i < mLocationListeners.length; i++) { Location l = mLocationListeners[i].current(); if (l != null) return l; } return null; } private boolean isCameraIdle() { return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; } private boolean isImageCaptureIntent() { String action = getIntent().getAction(); return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); } private void showPostCaptureAlert() { if (mIsImageCaptureIntent) { findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); int[] pickIds = {R.id.btn_retake, R.id.btn_done}; for (int id : pickIds) { View button = findViewById(id); ((View) button.getParent()).setVisibility(View.VISIBLE); } } } private void hidePostCaptureAlert() { if (mIsImageCaptureIntent) { findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); int[] pickIds = {R.id.btn_retake, R.id.btn_done}; for (int id : pickIds) { View button = findViewById(id); ((View) button.getParent()).setVisibility(View.GONE); } } } private int calculatePicturesRemaining() { mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); return mPicturesRemaining; } @Override public boolean onPrepareOptionsMenu(Menu menu) { super.onPrepareOptionsMenu(menu); for (int i = 1; i <= MenuHelper.MENU_ITEM_MAX; i++) { menu.setGroupVisible(i, false); } // Only show the menu when camera is idle. if (isCameraIdle()) { menu.setGroupVisible(MenuHelper.GENERIC_ITEM, true); menu.setGroupVisible(MenuHelper.IMAGE_MODE_ITEM, true); } return true; } @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); if (mIsImageCaptureIntent) { // No options menu for attach mode. return false; } else { addBaseMenuItems(menu); } return true; } private void addBaseMenuItems(Menu menu) { MenuHelper.addSwitchModeMenuItem(menu, this, true); { MenuItem gallery = menu.add( MenuHelper.IMAGE_MODE_ITEM, MENU_GALLERY_PHOTOS, 0, R.string.camera_gallery_photos_text) .setOnMenuItemClickListener(new OnMenuItemClickListener() { public boolean onMenuItemClick(MenuItem item) { gotoGallery(); return true; } }); gallery.setIcon(android.R.drawable.ic_menu_gallery); mGalleryItems.add(gallery); } { MenuItem gallery = menu.add( MenuHelper.VIDEO_MODE_ITEM, MENU_GALLERY_VIDEOS, 0, R.string.camera_gallery_photos_text) .setOnMenuItemClickListener(new OnMenuItemClickListener() { public boolean onMenuItemClick(MenuItem item) { gotoGallery(); return true; } }); gallery.setIcon(android.R.drawable.ic_menu_gallery); mGalleryItems.add(gallery); } MenuItem item = menu.add(MenuHelper.GENERIC_ITEM, MENU_SETTINGS, 0, R.string.settings) .setOnMenuItemClickListener(new OnMenuItemClickListener() { public boolean onMenuItemClick(MenuItem item) { // Keep the camera instance for a while. // This avoids re-opening the camera and saves time. CameraHolder.instance().keep(); Intent intent = new Intent(); intent.setClass(Camera.this, CameraSettings.class); startActivity(intent); return true; } }); item.setIcon(android.R.drawable.ic_menu_preferences); } public void onSwitchChanged(Switcher source, boolean onOff) { if (onOff == SWITCH_VIDEO && isCameraIdle()) { MenuHelper.gotoVideoMode(this); } } } class FocusRectangle extends View { @SuppressWarnings("unused") private static final String TAG = "FocusRectangle"; public FocusRectangle(Context context, AttributeSet attrs) { super(context, attrs); } private void setDrawable(int resid) { setBackgroundDrawable(getResources().getDrawable(resid)); } public void showStart() { setDrawable(R.drawable.focus_focusing); } public void showSuccess() { setDrawable(R.drawable.focus_focused); } public void showFail() { setDrawable(R.drawable.focus_focus_failed); } public void clear() { setBackgroundDrawable(null); } }