/* * Copyright (C) 2012 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 android.annotation.TargetApi; import android.app.Activity; import android.content.BroadcastReceiver; import android.content.ContentProviderClient; import android.content.ContentResolver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.SharedPreferences.Editor; import android.content.res.Configuration; import android.graphics.Bitmap; import android.graphics.SurfaceTexture; import android.hardware.Camera.CameraInfo; import android.hardware.Camera.Parameters; import android.hardware.Camera.Size; import android.hardware.Sensor; import android.hardware.SensorEvent; import android.hardware.SensorEventListener; import android.hardware.SensorManager; import android.location.Location; import android.media.CameraProfile; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.os.Looper; import android.os.Message; import android.os.MessageQueue; import android.os.SystemClock; import android.provider.MediaStore; import android.util.Log; import android.view.KeyEvent; import android.view.OrientationEventListener; import android.view.View; import android.view.WindowManager; import com.android.camera.CameraManager.CameraAFCallback; import com.android.camera.CameraManager.CameraAFMoveCallback; import com.android.camera.CameraManager.CameraPictureCallback; import com.android.camera.CameraManager.CameraProxy; import com.android.camera.CameraManager.CameraShutterCallback; import com.android.camera.exif.ExifInterface; import com.android.camera.exif.ExifTag; import com.android.camera.exif.Rational; import com.android.camera.ui.CountDownView.OnCountDownFinishedListener; import com.android.camera.ui.PopupManager; import com.android.camera.ui.RotateTextToast; import com.android.camera.util.ApiHelper; import com.android.camera.util.CameraUtil; import com.android.camera.util.UsageStatistics; import com.android.camera2.R; 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.List; public class PhotoModule implements CameraModule, PhotoController, FocusOverlayManager.Listener, CameraPreference.OnPreferenceChangedListener, ShutterButton.OnShutterButtonListener, MediaSaveService.Listener, OnCountDownFinishedListener, SensorEventListener { private static final String TAG = "CAM_PhotoModule"; // We number the request code from 1000 to avoid collision with Gallery. private static final int REQUEST_CROP = 1000; private static final int SETUP_PREVIEW = 1; private static final int FIRST_TIME_INIT = 2; private static final int CLEAR_SCREEN_DELAY = 3; private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 4; private static final int SHOW_TAP_TO_FOCUS_TOAST = 5; private static final int SWITCH_CAMERA = 6; private static final int SWITCH_CAMERA_START_ANIMATION = 7; private static final int CAMERA_OPEN_DONE = 8; private static final int OPEN_CAMERA_FAIL = 9; private static final int CAMERA_DISABLED = 10; // The subset of parameters we need to update in setCameraParameters(). private static final int UPDATE_PARAM_INITIALIZE = 1; private static final int UPDATE_PARAM_ZOOM = 2; private static final int UPDATE_PARAM_PREFERENCE = 4; private static final int UPDATE_PARAM_ALL = -1; // This is the timeout to keep the camera in onPause for the first time // after screen on if the activity is started from secure lock screen. private static final int KEEP_CAMERA_TIMEOUT = 1000; // ms // copied from Camera hierarchy private CameraActivity mActivity; private CameraProxy mCameraDevice; private int mCameraId; private Parameters mParameters; private boolean mPaused; private PhotoUI mUI; // The activity is going to switch to the specified camera id. This is // needed because texture copy is done in GL thread. -1 means camera is not // switching. protected int mPendingSwitchCameraId = -1; private boolean mOpenCameraFail; private boolean mCameraDisabled; // When setCameraParametersWhenIdle() is called, we accumulate the subsets // needed to be updated in mUpdateSet. private int mUpdateSet; private static final int SCREEN_DELAY = 2 * 60 * 1000; private int mZoomValue; // The current zoom value. private Parameters mInitialParams; private boolean mFocusAreaSupported; private boolean mMeteringAreaSupported; private boolean mAeLockSupported; private boolean mAwbLockSupported; private boolean mContinuousFocusSupported; // The degrees of the device rotated clockwise from its natural orientation. private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; private ComboPreferences mPreferences; private static final String sTempCropFilename = "crop-temp"; private ContentProviderClient mMediaProviderClient; private boolean mFaceDetectionStarted = false; // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. private String mCropValue; private Uri mSaveUri; // We use a queue to generated names of the images to be used later // when the image is ready to be saved. private NamedImages mNamedImages; private Runnable mDoSnapRunnable = new Runnable() { @Override public void run() { onShutterButtonClick(); } }; /** * An unpublished intent flag requesting to return as soon as capturing * is completed. * * TODO: consider publishing by moving into MediaStore. */ private static final String EXTRA_QUICK_CAPTURE = "android.intent.extra.quickCapture"; // The display rotation in degrees. This is only valid when mCameraState is // not PREVIEW_STOPPED. private int mDisplayRotation; // The value for android.hardware.Camera.setDisplayOrientation. private int mCameraDisplayOrientation; // The value for UI components like indicators. private int mDisplayOrientation; // The value for android.hardware.Camera.Parameters.setRotation. private int mJpegRotation; // Indicates whether we are using front camera private boolean mMirror; private boolean mFirstTimeInitialized; private boolean mIsImageCaptureIntent; private int mCameraState = PREVIEW_STOPPED; private boolean mSnapshotOnIdle = false; private ContentResolver mContentResolver; private LocationManager mLocationManager; private final PostViewPictureCallback mPostViewPictureCallback = new PostViewPictureCallback(); private final RawPictureCallback mRawPictureCallback = new RawPictureCallback(); private final AutoFocusCallback mAutoFocusCallback = new AutoFocusCallback(); private final Object mAutoFocusMoveCallback = ApiHelper.HAS_AUTO_FOCUS_MOVE_CALLBACK ? new AutoFocusMoveCallback() : null; private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); private long mFocusStartTime; private long mShutterCallbackTime; private long mPostViewPictureCallbackTime; private long mRawPictureCallbackTime; private long mJpegPictureCallbackTime; private long mOnResumeTime; private byte[] mJpegImageData; // These latency time are for the CameraLatency test. public long mAutoFocusTime; public long mShutterLag; public long mShutterToPictureDisplayedTime; public long mPictureDisplayedToJpegCallbackTime; public long mJpegCallbackFinishTime; public long mCaptureStartTime; // This handles everything about focus. private FocusOverlayManager mFocusManager; private String mSceneMode; private final Handler mHandler = new MainHandler(); private PreferenceGroup mPreferenceGroup; private boolean mQuickCapture; private SensorManager mSensorManager; private float[] mGData = new float[3]; private float[] mMData = new float[3]; private float[] mR = new float[16]; private int mHeading = -1; // True if all the parameters needed to start preview is ready. private boolean mCameraPreviewParamsReady = false; private MediaSaveService.OnMediaSavedListener mOnMediaSavedListener = new MediaSaveService.OnMediaSavedListener() { @Override public void onMediaSaved(Uri uri) { if (uri != null) { mActivity.notifyNewMedia(uri); } } }; private void checkDisplayRotation() { // Set the display orientation if display rotation has changed. // Sometimes this happens when the device is held upside // down and camera app is opened. Rotation animation will // take some time and the rotation value we have got may be // wrong. Framework does not have a callback for this now. if (CameraUtil.getDisplayRotation(mActivity) != mDisplayRotation) { setDisplayOrientation(); } if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { mHandler.postDelayed(new Runnable() { @Override public void run() { checkDisplayRotation(); } }, 100); } } /** * 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 SETUP_PREVIEW: { setupPreview(); break; } case CLEAR_SCREEN_DELAY: { mActivity.getWindow().clearFlags( WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); break; } case FIRST_TIME_INIT: { initializeFirstTime(); break; } case SET_CAMERA_PARAMETERS_WHEN_IDLE: { setCameraParametersWhenIdle(0); break; } case SHOW_TAP_TO_FOCUS_TOAST: { showTapToFocusToast(); break; } case SWITCH_CAMERA: { switchCamera(); break; } case SWITCH_CAMERA_START_ANIMATION: { // TODO: Need to revisit // ((CameraScreenNail) mActivity.mCameraScreenNail).animateSwitchCamera(); break; } case CAMERA_OPEN_DONE: { onCameraOpened(); break; } case OPEN_CAMERA_FAIL: { mOpenCameraFail = true; CameraUtil.showErrorAndFinish(mActivity, R.string.cannot_connect_camera); break; } case CAMERA_DISABLED: { mCameraDisabled = true; CameraUtil.showErrorAndFinish(mActivity, R.string.camera_disabled); break; } } } } private BroadcastReceiver mReceiver = null; private class ShutterBroadcastReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if (action.equals(CameraUtil.ACTION_CAMERA_SHUTTER_CLICK)) { onShutterButtonFocus(true); onShutterButtonClick(); } } } @Override public void init(CameraActivity activity, View parent) { mActivity = activity; mUI = new PhotoUI(activity, this, parent); mPreferences = new ComboPreferences(mActivity); CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); mCameraId = getPreferredCameraId(mPreferences); mContentResolver = mActivity.getContentResolver(); // Surface texture is from camera screen nail and startPreview needs it. // This must be done before startPreview. mIsImageCaptureIntent = isImageCaptureIntent(); mPreferences.setLocalId(mActivity, mCameraId); CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); // we need to reset exposure for the preview resetExposureCompensation(); initializeControlByIntent(); mQuickCapture = mActivity.getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); mLocationManager = new LocationManager(mActivity, mUI); mSensorManager = (SensorManager)(mActivity.getSystemService(Context.SENSOR_SERVICE)); } private void initializeControlByIntent() { mUI.initializeControlByIntent(); if (mIsImageCaptureIntent) { setupCaptureParams(); } } private void onPreviewStarted() { setCameraState(IDLE); startFaceDetection(); locationFirstRun(); } // Prompt the user to pick to record location for the very first run of // camera only private void locationFirstRun() { if (RecordLocationPreference.isSet(mPreferences)) { return; } if (mActivity.isSecureCamera()) return; // Check if the back camera exists int backCameraId = CameraHolder.instance().getBackCameraId(); if (backCameraId == -1) { // If there is no back camera, do not show the prompt. return; } mUI.showLocationDialog(); } public void enableRecordingLocation(boolean enable) { setLocationPreference(enable ? RecordLocationPreference.VALUE_ON : RecordLocationPreference.VALUE_OFF); } @Override public void onPreviewUIReady() { startPreview(); } @Override public void onPreviewUIDestroyed() { if (mCameraDevice == null) { return; } mCameraDevice.setPreviewTexture(null); stopPreview(); } private void setLocationPreference(String value) { mPreferences.edit() .putString(CameraSettings.KEY_RECORD_LOCATION, value) .apply(); // TODO: Fix this to use the actual onSharedPreferencesChanged listener // instead of invoking manually onSharedPreferenceChanged(); } private void onCameraOpened() { View root = mUI.getRootView(); // These depend on camera parameters. int width = root.getWidth(); int height = root.getHeight(); mFocusManager.setPreviewSize(width, height); openCameraCommon(); } private void switchCamera() { if (mPaused) return; Log.v(TAG, "Start to switch camera. id=" + mPendingSwitchCameraId); mCameraId = mPendingSwitchCameraId; mPendingSwitchCameraId = -1; setCameraId(mCameraId); // from onPause closeCamera(); mUI.collapseCameraControls(); mUI.clearFaces(); if (mFocusManager != null) mFocusManager.removeMessages(); // Restart the camera and initialize the UI. From onCreate. mPreferences.setLocalId(mActivity, mCameraId); CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); try { mCameraDevice = CameraUtil.openCamera(mActivity, mCameraId); mParameters = mCameraDevice.getParameters(); } catch (CameraHardwareException e) { CameraUtil.showErrorAndFinish(mActivity, R.string.cannot_connect_camera); return; } catch (CameraDisabledException e) { CameraUtil.showErrorAndFinish(mActivity, R.string.camera_disabled); return; } initializeCapabilities(); CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; mMirror = (info.facing == CameraInfo.CAMERA_FACING_FRONT); mFocusManager.setMirror(mMirror); mFocusManager.setParameters(mInitialParams); setupPreview(); // reset zoom value index mZoomValue = 0; openCameraCommon(); if (ApiHelper.HAS_SURFACE_TEXTURE) { // Start switch camera animation. Post a message because // onFrameAvailable from the old camera may already exist. mHandler.sendEmptyMessage(SWITCH_CAMERA_START_ANIMATION); } } protected void setCameraId(int cameraId) { ListPreference pref = mPreferenceGroup.findPreference(CameraSettings.KEY_CAMERA_ID); pref.setValue("" + cameraId); } // either open a new camera or switch cameras private void openCameraCommon() { loadCameraPreferences(); mUI.onCameraOpened(mPreferenceGroup, mPreferences, mParameters, this); updateSceneMode(); showTapToFocusToastIfNeeded(); } public void onScreenSizeChanged(int width, int height, int previewWidth, int previewHeight) { if (mFocusManager != null) mFocusManager.setPreviewSize(width, height); } private void resetExposureCompensation() { String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, CameraSettings.EXPOSURE_DEFAULT_VALUE); if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { Editor editor = mPreferences.edit(); editor.putString(CameraSettings.KEY_EXPOSURE, "0"); editor.apply(); } } private void keepMediaProviderInstance() { // We want to keep a reference to MediaProvider in camera's lifecycle. // TODO: Utilize mMediaProviderClient instance to replace // ContentResolver calls. if (mMediaProviderClient == null) { mMediaProviderClient = mContentResolver .acquireContentProviderClient(MediaStore.AUTHORITY); } } // 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. private void initializeFirstTime() { if (mFirstTimeInitialized) return; // Initialize location service. boolean recordLocation = RecordLocationPreference.get( mPreferences, mContentResolver); mLocationManager.recordLocation(recordLocation); keepMediaProviderInstance(); mUI.initializeFirstTime(); MediaSaveService s = mActivity.getMediaSaveService(); // We set the listener only when both service and shutterbutton // are initialized. if (s != null) { s.setListener(this); } mNamedImages = new NamedImages(); mFirstTimeInitialized = true; addIdleHandler(); mActivity.updateStorageSpaceAndHint(); } // If the activity is paused and resumed, this method will be called in // onResume. private void initializeSecondTime() { // Start location update if needed. boolean recordLocation = RecordLocationPreference.get( mPreferences, mContentResolver); mLocationManager.recordLocation(recordLocation); MediaSaveService s = mActivity.getMediaSaveService(); if (s != null) { s.setListener(this); } mNamedImages = new NamedImages(); mUI.initializeSecondTime(mParameters); keepMediaProviderInstance(); } private void showTapToFocusToastIfNeeded() { // Show the tap to focus toast if this is the first start. if (mFocusAreaSupported && mPreferences.getBoolean(CameraSettings.KEY_CAMERA_FIRST_USE_HINT_SHOWN, true)) { // Delay the toast for one second to wait for orientation. mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000); } } private void addIdleHandler() { MessageQueue queue = Looper.myQueue(); queue.addIdleHandler(new MessageQueue.IdleHandler() { @Override public boolean queueIdle() { Storage.ensureOSXCompatible(); return false; } }); } @TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH) @Override public void startFaceDetection() { if (!ApiHelper.HAS_FACE_DETECTION) return; if (mFaceDetectionStarted) return; if (mParameters.getMaxNumDetectedFaces() > 0) { mFaceDetectionStarted = true; CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; mUI.onStartFaceDetection(mDisplayOrientation, (info.facing == CameraInfo.CAMERA_FACING_FRONT)); mCameraDevice.setFaceDetectionCallback(mHandler, mUI); mCameraDevice.startFaceDetection(); } } @TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH) @Override public void stopFaceDetection() { if (!ApiHelper.HAS_FACE_DETECTION) return; if (!mFaceDetectionStarted) return; if (mParameters.getMaxNumDetectedFaces() > 0) { mFaceDetectionStarted = false; mCameraDevice.setFaceDetectionCallback(null, null); mCameraDevice.stopFaceDetection(); mUI.clearFaces(); } } private final class ShutterCallback implements CameraShutterCallback { private boolean mNeedsAnimation; public ShutterCallback(boolean needsAnimation) { mNeedsAnimation = needsAnimation; } @Override public void onShutter(CameraProxy camera) { mShutterCallbackTime = System.currentTimeMillis(); mShutterLag = mShutterCallbackTime - mCaptureStartTime; Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); if (mNeedsAnimation) { mActivity.runOnUiThread(new Runnable() { @Override public void run() { animateAfterShutter(); } }); } } } private final class PostViewPictureCallback implements CameraPictureCallback { @Override public void onPictureTaken(byte [] data, CameraProxy camera) { mPostViewPictureCallbackTime = System.currentTimeMillis(); Log.v(TAG, "mShutterToPostViewCallbackTime = " + (mPostViewPictureCallbackTime - mShutterCallbackTime) + "ms"); } } private final class RawPictureCallback implements CameraPictureCallback { @Override public void onPictureTaken(byte [] rawData, CameraProxy camera) { mRawPictureCallbackTime = System.currentTimeMillis(); Log.v(TAG, "mShutterToRawCallbackTime = " + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); } } private final class JpegPictureCallback implements CameraPictureCallback { Location mLocation; public JpegPictureCallback(Location loc) { mLocation = loc; } @Override public void onPictureTaken(final byte [] jpegData, CameraProxy camera) { mUI.enableShutter(true); if (mPaused) { return; } if (mIsImageCaptureIntent) { stopPreview(); } if (mSceneMode == CameraUtil.SCENE_MODE_HDR) { mUI.showSwitcher(); mUI.setSwipingEnabled(true); } mJpegPictureCallbackTime = System.currentTimeMillis(); // If postview callback has arrived, the captured image is displayed // in postview callback. If not, the captured image is displayed in // raw picture callback. if (mPostViewPictureCallbackTime != 0) { mShutterToPictureDisplayedTime = mPostViewPictureCallbackTime - mShutterCallbackTime; mPictureDisplayedToJpegCallbackTime = mJpegPictureCallbackTime - mPostViewPictureCallbackTime; } else { mShutterToPictureDisplayedTime = mRawPictureCallbackTime - mShutterCallbackTime; mPictureDisplayedToJpegCallbackTime = mJpegPictureCallbackTime - mRawPictureCallbackTime; } Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " + mPictureDisplayedToJpegCallbackTime + "ms"); mFocusManager.updateFocusUI(); // Ensure focus indicator is hidden. if (!mIsImageCaptureIntent) { if (ApiHelper.CAN_START_PREVIEW_IN_JPEG_CALLBACK) { setupPreview(); } else { // Camera HAL of some devices have a bug. Starting preview // immediately after taking a picture will fail. Wait some // time before starting the preview. mHandler.sendEmptyMessageDelayed(SETUP_PREVIEW, 300); } } if (!mIsImageCaptureIntent) { // Calculate the width and the height of the jpeg. Size s = mParameters.getPictureSize(); ExifInterface exif = Exif.getExif(jpegData); int orientation = Exif.getOrientation(exif); int width, height; if ((mJpegRotation + orientation) % 180 == 0) { width = s.width; height = s.height; } else { width = s.height; height = s.width; } String title = mNamedImages.getTitle(); long date = mNamedImages.getDate(); if (title == null) { Log.e(TAG, "Unbalanced name/data pair"); } else { if (date == -1) date = mCaptureStartTime; if (mHeading >= 0) { // heading direction has been updated by the sensor. ExifTag directionRefTag = exif.buildTag( ExifInterface.TAG_GPS_IMG_DIRECTION_REF, ExifInterface.GpsTrackRef.MAGNETIC_DIRECTION); ExifTag directionTag = exif.buildTag( ExifInterface.TAG_GPS_IMG_DIRECTION, new Rational(mHeading, 1)); exif.setTag(directionRefTag); exif.setTag(directionTag); } mActivity.getMediaSaveService().addImage( jpegData, title, date, mLocation, width, height, orientation, exif, mOnMediaSavedListener, mContentResolver); } // Animate capture with real jpeg data instead of a preview frame. mUI.animateCapture(jpegData, orientation, mMirror); } else { mJpegImageData = jpegData; if (!mQuickCapture) { mUI.showPostCaptureAlert(); } else { onCaptureDone(); } } // Check 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. mActivity.updateStorageSpaceAndHint(); long now = System.currentTimeMillis(); mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; Log.v(TAG, "mJpegCallbackFinishTime = " + mJpegCallbackFinishTime + "ms"); mJpegPictureCallbackTime = 0; } } private final class AutoFocusCallback implements CameraAFCallback { @Override public void onAutoFocus( boolean focused, CameraProxy camera) { if (mPaused) return; mAutoFocusTime = System.currentTimeMillis() - mFocusStartTime; Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); setCameraState(IDLE); mFocusManager.onAutoFocus(focused, mUI.isShutterPressed()); } } @TargetApi(ApiHelper.VERSION_CODES.JELLY_BEAN) private final class AutoFocusMoveCallback implements CameraAFMoveCallback { @Override public void onAutoFocusMoving( boolean moving, CameraProxy camera) { mFocusManager.onAutoFocusMoving(moving); } } private static class NamedImages { private ArrayList mQueue; private NamedEntity mNamedEntity; public NamedImages() { mQueue = new ArrayList(); } public void nameNewImage(ContentResolver resolver, long date) { NamedEntity r = new NamedEntity(); r.title = CameraUtil.createJpegName(date); r.date = date; mQueue.add(r); } public String getTitle() { if (mQueue.isEmpty()) { mNamedEntity = null; return null; } mNamedEntity = mQueue.get(0); mQueue.remove(0); return mNamedEntity.title; } // Must be called after getTitle(). public long getDate() { if (mNamedEntity == null) return -1; return mNamedEntity.date; } private static class NamedEntity { String title; long date; } } private void setCameraState(int state) { mCameraState = state; switch (state) { case PhotoController.PREVIEW_STOPPED: case PhotoController.SNAPSHOT_IN_PROGRESS: case PhotoController.SWITCHING_CAMERA: mUI.enableGestures(false); break; case PhotoController.IDLE: mUI.enableGestures(true); break; } } private void animateAfterShutter() { // Only animate when in full screen capture mode // i.e. If monkey/a user swipes to the gallery during picture taking, // don't show animation if (!mIsImageCaptureIntent) { mUI.animateFlash(); } } @Override public boolean capture() { // If we are already in the middle of taking a snapshot or the image save request // is full then ignore. if (mCameraDevice == null || mCameraState == SNAPSHOT_IN_PROGRESS || mCameraState == SWITCHING_CAMERA || mActivity.getMediaSaveService().isQueueFull()) { return false; } mCaptureStartTime = System.currentTimeMillis(); mPostViewPictureCallbackTime = 0; mJpegImageData = null; final boolean animateBefore = (mSceneMode == CameraUtil.SCENE_MODE_HDR); if (animateBefore) { animateAfterShutter(); } // Set rotation and gps data. int orientation; // We need to be consistent with the framework orientation (i.e. the // orientation of the UI.) when the auto-rotate screen setting is on. if (mActivity.isAutoRotateScreen()) { orientation = (360 - mDisplayRotation) % 360; } else { orientation = mOrientation; } mJpegRotation = CameraUtil.getJpegRotation(mCameraId, orientation); mParameters.setRotation(mJpegRotation); Location loc = mLocationManager.getCurrentLocation(); CameraUtil.setGpsParameters(mParameters, loc); mCameraDevice.setParameters(mParameters); // We don't want user to press the button again while taking a // multi-second HDR photo. mUI.enableShutter(false); mCameraDevice.takePicture(mHandler, new ShutterCallback(!animateBefore), mRawPictureCallback, mPostViewPictureCallback, new JpegPictureCallback(loc)); mNamedImages.nameNewImage(mContentResolver, mCaptureStartTime); mFaceDetectionStarted = false; setCameraState(SNAPSHOT_IN_PROGRESS); UsageStatistics.onEvent(UsageStatistics.COMPONENT_CAMERA, UsageStatistics.ACTION_CAPTURE_DONE, "Photo"); return true; } @Override public void setFocusParameters() { setCameraParameters(UPDATE_PARAM_PREFERENCE); } private int getPreferredCameraId(ComboPreferences preferences) { int intentCameraId = CameraUtil.getCameraFacingIntentExtras(mActivity); if (intentCameraId != -1) { // Testing purpose. Launch a specific camera through the intent // extras. return intentCameraId; } else { return CameraSettings.readPreferredCameraId(preferences); } } private void updateSceneMode() { // If scene mode is set, we cannot set flash mode, white balance, and // focus mode, instead, we read it from driver if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { overrideCameraSettings(mParameters.getFlashMode(), mParameters.getWhiteBalance(), mParameters.getFocusMode()); } else { overrideCameraSettings(null, null, null); } } private void overrideCameraSettings(final String flashMode, final String whiteBalance, final String focusMode) { mUI.overrideSettings( CameraSettings.KEY_FLASH_MODE, flashMode, CameraSettings.KEY_WHITE_BALANCE, whiteBalance, CameraSettings.KEY_FOCUS_MODE, focusMode); } private void loadCameraPreferences() { CameraSettings settings = new CameraSettings(mActivity, mInitialParams, mCameraId, CameraHolder.instance().getCameraInfo()); mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); } @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 or sky, we still have // the correct orientation. if (orientation == OrientationEventListener.ORIENTATION_UNKNOWN) return; mOrientation = CameraUtil.roundOrientation(orientation, mOrientation); // Show the toast after getting the first orientation changed. if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) { mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST); showTapToFocusToast(); } } @Override public void onStop() { if (mMediaProviderClient != null) { mMediaProviderClient.release(); mMediaProviderClient = null; } } @Override public void onCaptureCancelled() { mActivity.setResultEx(Activity.RESULT_CANCELED, new Intent()); mActivity.finish(); } @Override public void onCaptureRetake() { if (mPaused) return; mUI.hidePostCaptureAlert(); setupPreview(); } @Override public void onCaptureDone() { if (mPaused) { return; } byte[] data = mJpegImageData; if (mCropValue == null) { // First handle the no crop case -- just return the value. If the // caller specifies a "save uri" then write the data to its // stream. Otherwise, pass back a scaled down version of the bitmap // directly in the extras. if (mSaveUri != null) { OutputStream outputStream = null; try { outputStream = mContentResolver.openOutputStream(mSaveUri); outputStream.write(data); outputStream.close(); mActivity.setResultEx(Activity.RESULT_OK); mActivity.finish(); } catch (IOException ex) { // ignore exception } finally { CameraUtil.closeSilently(outputStream); } } else { ExifInterface exif = Exif.getExif(data); int orientation = Exif.getOrientation(exif); Bitmap bitmap = CameraUtil.makeBitmap(data, 50 * 1024); bitmap = CameraUtil.rotate(bitmap, orientation); mActivity.setResultEx(Activity.RESULT_OK, new Intent("inline-data").putExtra("data", bitmap)); mActivity.finish(); } } else { // Save the image to a temp file and invoke the cropper Uri tempUri = null; FileOutputStream tempStream = null; try { File path = mActivity.getFileStreamPath(sTempCropFilename); path.delete(); tempStream = mActivity.openFileOutput(sTempCropFilename, 0); tempStream.write(data); tempStream.close(); tempUri = Uri.fromFile(path); } catch (FileNotFoundException ex) { mActivity.setResultEx(Activity.RESULT_CANCELED); mActivity.finish(); return; } catch (IOException ex) { mActivity.setResultEx(Activity.RESULT_CANCELED); mActivity.finish(); return; } finally { CameraUtil.closeSilently(tempStream); } Bundle newExtras = new Bundle(); if (mCropValue.equals("circle")) { newExtras.putString("circleCrop", "true"); } if (mSaveUri != null) { newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); } else { newExtras.putBoolean(CameraUtil.KEY_RETURN_DATA, true); } if (mActivity.isSecureCamera()) { newExtras.putBoolean(CameraUtil.KEY_SHOW_WHEN_LOCKED, true); } // TODO: Share this constant. final String CROP_ACTION = "com.android.camera.action.CROP"; Intent cropIntent = new Intent(CROP_ACTION); cropIntent.setData(tempUri); cropIntent.putExtras(newExtras); mActivity.startActivityForResult(cropIntent, REQUEST_CROP); } } @Override public void onShutterButtonFocus(boolean pressed) { if (mPaused || mUI.collapseCameraControls() || (mCameraState == SNAPSHOT_IN_PROGRESS) || (mCameraState == PREVIEW_STOPPED)) return; // Do not do focus if there is not enough storage. if (pressed && !canTakePicture()) return; if (pressed) { mFocusManager.onShutterDown(); } else { // for countdown mode, we need to postpone the shutter release // i.e. lock the focus during countdown. if (!mUI.isCountingDown()) { mFocusManager.onShutterUp(); } } } @Override public void onShutterButtonClick() { if (mPaused || mUI.collapseCameraControls() || (mCameraState == SWITCHING_CAMERA) || (mCameraState == PREVIEW_STOPPED)) return; // Do not take the picture if there is not enough storage. if (mActivity.getStorageSpace() <= Storage.LOW_STORAGE_THRESHOLD) { Log.i(TAG, "Not enough space or storage not ready. remaining=" + mActivity.getStorageSpace()); return; } Log.v(TAG, "onShutterButtonClick: mCameraState=" + mCameraState); if (mSceneMode == CameraUtil.SCENE_MODE_HDR) { mUI.hideSwitcher(); mUI.setSwipingEnabled(false); } // If the user wants to do a snapshot while the previous one is still // in progress, remember the fact and do it after we finish the previous // one and re-start the preview. Snapshot in progress also includes the // state that autofocus is focusing and a picture will be taken when // focus callback arrives. if ((mFocusManager.isFocusingSnapOnFinish() || mCameraState == SNAPSHOT_IN_PROGRESS) && !mIsImageCaptureIntent) { mSnapshotOnIdle = true; return; } String timer = mPreferences.getString( CameraSettings.KEY_TIMER, mActivity.getString(R.string.pref_camera_timer_default)); boolean playSound = mPreferences.getString(CameraSettings.KEY_TIMER_SOUND_EFFECTS, mActivity.getString(R.string.pref_camera_timer_sound_default)) .equals(mActivity.getString(R.string.setting_on_value)); int seconds = Integer.parseInt(timer); // When shutter button is pressed, check whether the previous countdown is // finished. If not, cancel the previous countdown and start a new one. if (mUI.isCountingDown()) { mUI.cancelCountDown(); } if (seconds > 0) { mUI.startCountDown(seconds, playSound); } else { mSnapshotOnIdle = false; mFocusManager.doSnap(); } } @Override public void installIntentFilter() { // Install an intent filter to receive remote shutter events. IntentFilter intentFilter = new IntentFilter(CameraUtil.ACTION_CAMERA_SHUTTER_CLICK); mReceiver = new ShutterBroadcastReceiver(); mActivity.registerReceiver(mReceiver, intentFilter); } @Override public boolean updateStorageHintOnResume() { return mFirstTimeInitialized; } @Override public void updateCameraAppView() { } @Override public void onResumeBeforeSuper() { mPaused = false; } private void prepareCamera() { try { // We need to check whether the activity is paused before long // operations to ensure that onPause() can be done ASAP. mCameraDevice = CameraUtil.openCamera(mActivity, mCameraId); mParameters = mCameraDevice.getParameters(); initializeCapabilities(); if (mFocusManager == null) initializeFocusManager(); setCameraParameters(UPDATE_PARAM_ALL); mHandler.sendEmptyMessage(CAMERA_OPEN_DONE); mCameraPreviewParamsReady = true; startPreview(); mOnResumeTime = SystemClock.uptimeMillis(); checkDisplayRotation(); } catch (CameraHardwareException e) { mHandler.sendEmptyMessage(OPEN_CAMERA_FAIL); } catch (CameraDisabledException e) { mHandler.sendEmptyMessage(CAMERA_DISABLED); } } @Override public void onResumeAfterSuper() { if (mOpenCameraFail || mCameraDisabled) return; mJpegPictureCallbackTime = 0; mZoomValue = 0; resetExposureCompensation(); prepareCamera(); // If first time initialization is not finished, put it in the // message queue. if (!mFirstTimeInitialized) { mHandler.sendEmptyMessage(FIRST_TIME_INIT); } else { initializeSecondTime(); } keepScreenOnAwhile(); // Dismiss open menu if exists. PopupManager.getInstance(mActivity).notifyShowPopup(null); UsageStatistics.onContentViewChanged( UsageStatistics.COMPONENT_CAMERA, "PhotoModule"); Sensor gsensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); if (gsensor != null) { mSensorManager.registerListener(this, gsensor, SensorManager.SENSOR_DELAY_NORMAL); } Sensor msensor = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD); if (msensor != null) { mSensorManager.registerListener(this, msensor, SensorManager.SENSOR_DELAY_NORMAL); } installIntentFilter(); Intent intent = new Intent(CameraUtil.ACTION_CAMERA_STARTED); mActivity.sendBroadcast(intent); } @Override public void onPauseBeforeSuper() { Intent intent = new Intent(CameraUtil.ACTION_CAMERA_STOPPED); mActivity.sendBroadcast(intent); if (mReceiver != null) { mActivity.unregisterReceiver(mReceiver); mReceiver = null; } mPaused = true; Sensor gsensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); if (gsensor != null) { mSensorManager.unregisterListener(this, gsensor); } Sensor msensor = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD); if (msensor != null) { mSensorManager.unregisterListener(this, msensor); } } @Override public void onPauseAfterSuper() { // When camera is started from secure lock screen for the first time // after screen on, the activity gets onCreate->onResume->onPause->onResume. // To reduce the latency, keep the camera for a short time so it does // not need to be opened again. if (mCameraDevice != null && mActivity.isSecureCamera() && CameraActivity.isFirstStartAfterScreenOn()) { CameraActivity.resetFirstStartAfterScreenOn(); CameraHolder.instance().keep(KEEP_CAMERA_TIMEOUT); } // Reset the focus first. Camera CTS does not guarantee that // cancelAutoFocus is allowed after preview stops. if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { mCameraDevice.cancelAutoFocus(); } stopPreview(); mNamedImages = null; if (mLocationManager != null) mLocationManager.recordLocation(false); // If we are in an image capture intent and has taken // a picture, we just clear it in onPause. mJpegImageData = null; // Remove the messages and runnables in the queue. mHandler.removeCallbacksAndMessages(null); closeCamera(); resetScreenOn(); mUI.onPause(); mPendingSwitchCameraId = -1; if (mFocusManager != null) mFocusManager.removeMessages(); MediaSaveService s = mActivity.getMediaSaveService(); if (s != null) { s.setListener(null); } } /** * The focus manager is the first UI related element to get initialized, * and it requires the RenderOverlay, so initialize it here */ private void initializeFocusManager() { // Create FocusManager object. startPreview needs it. // if mFocusManager not null, reuse it // otherwise create a new instance if (mFocusManager != null) { mFocusManager.removeMessages(); } else { CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; mMirror = (info.facing == CameraInfo.CAMERA_FACING_FRONT); String[] defaultFocusModes = mActivity.getResources().getStringArray( R.array.pref_camera_focusmode_default_array); mFocusManager = new FocusOverlayManager(mPreferences, defaultFocusModes, mInitialParams, this, mMirror, mActivity.getMainLooper(), mUI); } } @Override public void onConfigurationChanged(Configuration newConfig) { Log.v(TAG, "onConfigurationChanged"); setDisplayOrientation(); } @Override public void updateCameraOrientation() { if (mDisplayRotation != CameraUtil.getDisplayRotation(mActivity)) { setDisplayOrientation(); } } @Override public void onActivityResult( int requestCode, int resultCode, Intent data) { switch (requestCode) { case REQUEST_CROP: { Intent intent = new Intent(); if (data != null) { Bundle extras = data.getExtras(); if (extras != null) { intent.putExtras(extras); } } mActivity.setResultEx(resultCode, intent); mActivity.finish(); File path = mActivity.getFileStreamPath(sTempCropFilename); path.delete(); break; } } } private boolean canTakePicture() { return isCameraIdle() && (mActivity.getStorageSpace() > Storage.LOW_STORAGE_THRESHOLD); } @Override public void autoFocus() { mFocusStartTime = System.currentTimeMillis(); mCameraDevice.autoFocus(mHandler, mAutoFocusCallback); setCameraState(FOCUSING); } @Override public void cancelAutoFocus() { mCameraDevice.cancelAutoFocus(); setCameraState(IDLE); setCameraParameters(UPDATE_PARAM_PREFERENCE); } // Preview area is touched. Handle touch focus. @Override public void onSingleTapUp(View view, int x, int y) { if (mPaused || mCameraDevice == null || !mFirstTimeInitialized || mCameraState == SNAPSHOT_IN_PROGRESS || mCameraState == SWITCHING_CAMERA || mCameraState == PREVIEW_STOPPED) { return; } // Check if metering area or focus area is supported. if (!mFocusAreaSupported && !mMeteringAreaSupported) return; mFocusManager.onSingleTapUp(x, y); } @Override public boolean onBackPressed() { return mUI.onBackPressed(); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_VOLUME_UP: case KeyEvent.KEYCODE_VOLUME_DOWN: case KeyEvent.KEYCODE_FOCUS: if (/*TODO: mActivity.isInCameraApp() &&*/ mFirstTimeInitialized) { if (event.getRepeatCount() == 0) { onShutterButtonFocus(true); } return true; } return false; case KeyEvent.KEYCODE_CAMERA: if (mFirstTimeInitialized && event.getRepeatCount() == 0) { onShutterButtonClick(); } 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, onShutterButtonFocus() // will be called again but it is fine. onShutterButtonFocus(true); mUI.pressShutterButton(); } return true; } return false; } @Override public boolean onKeyUp(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_VOLUME_UP: case KeyEvent.KEYCODE_VOLUME_DOWN: if (/*mActivity.isInCameraApp() && */ mFirstTimeInitialized) { onShutterButtonClick(); return true; } return false; case KeyEvent.KEYCODE_FOCUS: if (mFirstTimeInitialized) { onShutterButtonFocus(false); } return true; } return false; } @TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH) private void closeCamera() { if (mCameraDevice != null) { mCameraDevice.setZoomChangeListener(null); if(ApiHelper.HAS_FACE_DETECTION) { mCameraDevice.setFaceDetectionCallback(null, null); } mCameraDevice.setErrorCallback(null); CameraHolder.instance().release(); mFaceDetectionStarted = false; mCameraDevice = null; setCameraState(PREVIEW_STOPPED); mFocusManager.onCameraReleased(); } } private void setDisplayOrientation() { mDisplayRotation = CameraUtil.getDisplayRotation(mActivity); mDisplayOrientation = CameraUtil.getDisplayOrientation(mDisplayRotation, mCameraId); mCameraDisplayOrientation = mDisplayOrientation; mUI.setDisplayOrientation(mDisplayOrientation); if (mFocusManager != null) { mFocusManager.setDisplayOrientation(mDisplayOrientation); } // Change the camera display orientation if (mCameraDevice != null) { mCameraDevice.setDisplayOrientation(mCameraDisplayOrientation); } } /** Only called by UI thread. */ private void setupPreview() { mFocusManager.resetTouchFocus(); startPreview(); } // This can only be called by UI Thread. private void startPreview() { if (mPaused) { return; } SurfaceTexture st = mUI.getSurfaceTexture(); if (st == null) { Log.w(TAG, "startPreview: surfaceTexture is not ready."); return; } if (!mCameraPreviewParamsReady) { Log.w(TAG, "startPreview: parameters for preview is not ready."); return; } mCameraDevice.setErrorCallback(mErrorCallback); // ICS camera frameworks has a bug. Face detection state is not cleared // after taking a picture. Stop the preview to work around it. The bug // was fixed in JB. if (mCameraState != PREVIEW_STOPPED) stopPreview(); setDisplayOrientation(); if (!mSnapshotOnIdle) { // If the focus mode is continuous autofocus, call cancelAutoFocus to // resume it because it may have been paused by autoFocus call. if (CameraUtil.FOCUS_MODE_CONTINUOUS_PICTURE.equals(mFocusManager.getFocusMode())) { mCameraDevice.cancelAutoFocus(); } mFocusManager.setAeAwbLock(false); // Unlock AE and AWB. } setCameraParameters(UPDATE_PARAM_ALL); // Let UI set its expected aspect ratio mCameraDevice.setPreviewTexture(st); Log.v(TAG, "startPreview"); mCameraDevice.startPreview(); mFocusManager.onPreviewStarted(); onPreviewStarted(); if (mSnapshotOnIdle) { mHandler.post(mDoSnapRunnable); } } @Override public void stopPreview() { if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { Log.v(TAG, "stopPreview"); mCameraDevice.stopPreview(); mFaceDetectionStarted = false; } setCameraState(PREVIEW_STOPPED); if (mFocusManager != null) mFocusManager.onPreviewStopped(); } @SuppressWarnings("deprecation") private void updateCameraParametersInitialize() { // Reset preview frame rate to the maximum because it may be lowered by // video camera application. int[] fpsRange = CameraUtil.getMaxPreviewFpsRange(mParameters); if (fpsRange.length > 0) { mParameters.setPreviewFpsRange( fpsRange[Parameters.PREVIEW_FPS_MIN_INDEX], fpsRange[Parameters.PREVIEW_FPS_MAX_INDEX]); } mParameters.set(CameraUtil.RECORDING_HINT, CameraUtil.FALSE); // Disable video stabilization. Convenience methods not available in API // level <= 14 String vstabSupported = mParameters.get("video-stabilization-supported"); if ("true".equals(vstabSupported)) { mParameters.set("video-stabilization", "false"); } } private void updateCameraParametersZoom() { // Set zoom. if (mParameters.isZoomSupported()) { mParameters.setZoom(mZoomValue); } } @TargetApi(ApiHelper.VERSION_CODES.JELLY_BEAN) private void setAutoExposureLockIfSupported() { if (mAeLockSupported) { mParameters.setAutoExposureLock(mFocusManager.getAeAwbLock()); } } @TargetApi(ApiHelper.VERSION_CODES.JELLY_BEAN) private void setAutoWhiteBalanceLockIfSupported() { if (mAwbLockSupported) { mParameters.setAutoWhiteBalanceLock(mFocusManager.getAeAwbLock()); } } @TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH) private void setFocusAreasIfSupported() { if (mFocusAreaSupported) { mParameters.setFocusAreas(mFocusManager.getFocusAreas()); } } @TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH) private void setMeteringAreasIfSupported() { if (mMeteringAreaSupported) { // Use the same area for focus and metering. mParameters.setMeteringAreas(mFocusManager.getMeteringAreas()); } } private void updateCameraParametersPreference() { setAutoExposureLockIfSupported(); setAutoWhiteBalanceLockIfSupported(); setFocusAreasIfSupported(); setMeteringAreasIfSupported(); // Set picture size. String pictureSize = mPreferences.getString( CameraSettings.KEY_PICTURE_SIZE, null); if (pictureSize == null) { CameraSettings.initialCameraPictureSize(mActivity, mParameters); } else { List supported = mParameters.getSupportedPictureSizes(); CameraSettings.setCameraPictureSize( pictureSize, supported, mParameters); } Size size = mParameters.getPictureSize(); // Set a preview size that is closest to the viewfinder height and has // the right aspect ratio. List sizes = mParameters.getSupportedPreviewSizes(); Size optimalSize = CameraUtil.getOptimalPreviewSize(mActivity, sizes, (double) size.width / size.height); Size original = mParameters.getPreviewSize(); if (!original.equals(optimalSize)) { mParameters.setPreviewSize(optimalSize.width, optimalSize.height); // Zoom related settings will be changed for different preview // sizes, so set and read the parameters to get latest values if (mHandler.getLooper() == Looper.myLooper()) { // On UI thread only, not when camera starts up setupPreview(); } else { mCameraDevice.setParameters(mParameters); } mParameters = mCameraDevice.getParameters(); } Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); // Since changing scene mode may change supported values, set scene mode // first. HDR is a scene mode. To promote it in UI, it is stored in a // separate preference. String hdr = mPreferences.getString(CameraSettings.KEY_CAMERA_HDR, mActivity.getString(R.string.pref_camera_hdr_default)); if (mActivity.getString(R.string.setting_on_value).equals(hdr)) { mSceneMode = CameraUtil.SCENE_MODE_HDR; } else { mSceneMode = mPreferences.getString( CameraSettings.KEY_SCENE_MODE, mActivity.getString(R.string.pref_camera_scenemode_default)); } if (CameraUtil.isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { if (!mParameters.getSceneMode().equals(mSceneMode)) { mParameters.setSceneMode(mSceneMode); // Setting scene mode will change the settings of flash mode, // white balance, and focus mode. Here we read back the // parameters, so we can know those settings. mCameraDevice.setParameters(mParameters); mParameters = mCameraDevice.getParameters(); } } else { mSceneMode = mParameters.getSceneMode(); if (mSceneMode == null) { mSceneMode = Parameters.SCENE_MODE_AUTO; } } // Set JPEG quality. int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, CameraProfile.QUALITY_HIGH); mParameters.setJpegQuality(jpegQuality); // For the following settings, we need to check if the settings are // still supported by latest driver, if not, ignore the settings. // Set exposure compensation int value = CameraSettings.readExposure(mPreferences); int max = mParameters.getMaxExposureCompensation(); int min = mParameters.getMinExposureCompensation(); if (value >= min && value <= max) { mParameters.setExposureCompensation(value); } else { Log.w(TAG, "invalid exposure range: " + value); } if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { // Set flash mode. String flashMode = mPreferences.getString( CameraSettings.KEY_FLASH_MODE, mActivity.getString(R.string.pref_camera_flashmode_default)); List supportedFlash = mParameters.getSupportedFlashModes(); if (CameraUtil.isSupported(flashMode, supportedFlash)) { mParameters.setFlashMode(flashMode); } else { flashMode = mParameters.getFlashMode(); if (flashMode == null) { flashMode = mActivity.getString( R.string.pref_camera_flashmode_no_flash); } } // Set white balance parameter. String whiteBalance = mPreferences.getString( CameraSettings.KEY_WHITE_BALANCE, mActivity.getString(R.string.pref_camera_whitebalance_default)); if (CameraUtil.isSupported(whiteBalance, mParameters.getSupportedWhiteBalance())) { mParameters.setWhiteBalance(whiteBalance); } else { whiteBalance = mParameters.getWhiteBalance(); if (whiteBalance == null) { whiteBalance = Parameters.WHITE_BALANCE_AUTO; } } // Set focus mode. mFocusManager.overrideFocusMode(null); mParameters.setFocusMode(mFocusManager.getFocusMode()); } else { mFocusManager.overrideFocusMode(mParameters.getFocusMode()); } if (mContinuousFocusSupported && ApiHelper.HAS_AUTO_FOCUS_MOVE_CALLBACK) { updateAutoFocusMoveCallback(); } } @TargetApi(ApiHelper.VERSION_CODES.JELLY_BEAN) private void updateAutoFocusMoveCallback() { if (mParameters.getFocusMode().equals(CameraUtil.FOCUS_MODE_CONTINUOUS_PICTURE)) { mCameraDevice.setAutoFocusMoveCallback(mHandler, (CameraManager.CameraAFMoveCallback) mAutoFocusMoveCallback); } else { mCameraDevice.setAutoFocusMoveCallback(null, null); } } // We separate the parameters into several subsets, so we can update only // the subsets actually need updating. The PREFERENCE set needs extra // locking because the preference can be changed from GLThread as well. private void setCameraParameters(int updateSet) { if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { updateCameraParametersInitialize(); } if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { updateCameraParametersZoom(); } if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { updateCameraParametersPreference(); } mCameraDevice.setParameters(mParameters); } // If the Camera is idle, update the parameters immediately, otherwise // accumulate them in mUpdateSet and update later. private void setCameraParametersWhenIdle(int additionalUpdateSet) { mUpdateSet |= additionalUpdateSet; if (mCameraDevice == null) { // We will update all the parameters when we open the device, so // we don't need to do anything now. mUpdateSet = 0; return; } else if (isCameraIdle()) { setCameraParameters(mUpdateSet); updateSceneMode(); mUpdateSet = 0; } else { if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { mHandler.sendEmptyMessageDelayed( SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); } } } public boolean isCameraIdle() { return (mCameraState == IDLE) || (mCameraState == PREVIEW_STOPPED) || ((mFocusManager != null) && mFocusManager.isFocusCompleted() && (mCameraState != SWITCHING_CAMERA)); } public boolean isImageCaptureIntent() { String action = mActivity.getIntent().getAction(); return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action) || CameraActivity.ACTION_IMAGE_CAPTURE_SECURE.equals(action)); } private void setupCaptureParams() { Bundle myExtras = mActivity.getIntent().getExtras(); if (myExtras != null) { mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); mCropValue = myExtras.getString("crop"); } } @Override public void onSharedPreferenceChanged() { // ignore the events after "onPause()" if (mPaused) return; boolean recordLocation = RecordLocationPreference.get( mPreferences, mContentResolver); mLocationManager.recordLocation(recordLocation); setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); mUI.updateOnScreenIndicators(mParameters, mPreferenceGroup, mPreferences); } @Override public void onCameraPickerClicked(int cameraId) { if (mPaused || mPendingSwitchCameraId != -1) return; mPendingSwitchCameraId = cameraId; Log.v(TAG, "Start to switch camera. cameraId=" + cameraId); // We need to keep a preview frame for the animation before // releasing the camera. This will trigger onPreviewTextureCopied. //TODO: Need to animate the camera switch switchCamera(); } // Preview texture has been copied. Now camera can be released and the // animation can be started. @Override public void onPreviewTextureCopied() { mHandler.sendEmptyMessage(SWITCH_CAMERA); } @Override public void onCaptureTextureCopied() { } @Override public void onUserInteraction() { if (!mActivity.isFinishing()) keepScreenOnAwhile(); } private void resetScreenOn() { mHandler.removeMessages(CLEAR_SCREEN_DELAY); mActivity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); } private void keepScreenOnAwhile() { mHandler.removeMessages(CLEAR_SCREEN_DELAY); mActivity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); } @Override public void onOverriddenPreferencesClicked() { if (mPaused) return; mUI.showPreferencesToast(); } private void showTapToFocusToast() { // TODO: Use a toast? new RotateTextToast(mActivity, R.string.tap_to_focus, 0).show(); // Clear the preference. Editor editor = mPreferences.edit(); editor.putBoolean(CameraSettings.KEY_CAMERA_FIRST_USE_HINT_SHOWN, false); editor.apply(); } private void initializeCapabilities() { mInitialParams = mCameraDevice.getParameters(); mFocusAreaSupported = CameraUtil.isFocusAreaSupported(mInitialParams); mMeteringAreaSupported = CameraUtil.isMeteringAreaSupported(mInitialParams); mAeLockSupported = CameraUtil.isAutoExposureLockSupported(mInitialParams); mAwbLockSupported = CameraUtil.isAutoWhiteBalanceLockSupported(mInitialParams); mContinuousFocusSupported = mInitialParams.getSupportedFocusModes().contains( CameraUtil.FOCUS_MODE_CONTINUOUS_PICTURE); } @Override public void onCountDownFinished() { mSnapshotOnIdle = false; mFocusManager.doSnap(); mFocusManager.onShutterUp(); } @Override public void onShowSwitcherPopup() { mUI.onShowSwitcherPopup(); } @Override public int onZoomChanged(int index) { // Not useful to change zoom value when the activity is paused. if (mPaused) return index; mZoomValue = index; if (mParameters == null || mCameraDevice == null) return index; // Set zoom parameters asynchronously mParameters.setZoom(mZoomValue); mCameraDevice.setParameters(mParameters); Parameters p = mCameraDevice.getParameters(); if (p != null) return p.getZoom(); return index; } @Override public int getCameraState() { return mCameraState; } @Override public void onQueueStatus(boolean full) { mUI.enableShutter(!full); } @Override public void onMediaSaveServiceConnected(MediaSaveService s) { // We set the listener only when both service and shutterbutton // are initialized. if (mFirstTimeInitialized) { s.setListener(this); } } @Override public void onAccuracyChanged(Sensor sensor, int accuracy) { } @Override public void onSensorChanged(SensorEvent event) { int type = event.sensor.getType(); float[] data; if (type == Sensor.TYPE_ACCELEROMETER) { data = mGData; } else if (type == Sensor.TYPE_MAGNETIC_FIELD) { data = mMData; } else { // we should not be here. return; } for (int i = 0; i < 3 ; i++) { data[i] = event.values[i]; } float[] orientation = new float[3]; SensorManager.getRotationMatrix(mR, null, mGData, mMData); SensorManager.getOrientation(mR, orientation); mHeading = (int) (orientation[0] * 180f / Math.PI) % 360; if (mHeading < 0) { mHeading += 360; } } @Override public void onSwitchMode(boolean toCamera) { mUI.onSwitchMode(toCamera); } /* Below is no longer needed, except to get rid of compile error * TODO: Remove these */ // TODO: Delete this function after old camera code is removed @Override public void onRestorePreferencesClicked() {} }