Class CameraBridgeViewBase

java.lang.Object
android.view.View
android.view.SurfaceView
org.opencv.android.CameraBridgeViewBase
All Implemented Interfaces:
android.graphics.drawable.Drawable.Callback, android.view.accessibility.AccessibilityEventSource, android.view.KeyEvent.Callback, android.view.SurfaceHolder.Callback
Direct Known Subclasses:
JavaCamera2View, JavaCameraView, NativeCameraView

public abstract class CameraBridgeViewBase extends android.view.SurfaceView implements android.view.SurfaceHolder.Callback
This is a basic class, implementing the interaction with Camera and OpenCV library. The main responsibility of it - is to control when camera can be enabled, process the frame, call external listener to make any adjustments to the frame and then draw the resulting frame to the screen. The clients shall implement CvCameraViewListener.
  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static interface 
    This class interface is abstract representation of single frame from camera for onCameraFrame callback Attention: Do not use objects, that represents this interface out of onCameraFrame callback!
    static interface 
     
    static interface 
     
    static interface 
     
    class 
     

    Nested classes/interfaces inherited from class android.view.View

    android.view.View.AccessibilityDelegate, android.view.View.BaseSavedState, android.view.View.DragShadowBuilder, android.view.View.MeasureSpec, android.view.View.OnApplyWindowInsetsListener, android.view.View.OnAttachStateChangeListener, android.view.View.OnCapturedPointerListener, android.view.View.OnClickListener, android.view.View.OnContextClickListener, android.view.View.OnCreateContextMenuListener, android.view.View.OnDragListener, android.view.View.OnFocusChangeListener, android.view.View.OnGenericMotionListener, android.view.View.OnHoverListener, android.view.View.OnKeyListener, android.view.View.OnLayoutChangeListener, android.view.View.OnLongClickListener, android.view.View.OnScrollChangeListener, android.view.View.OnTouchListener, android.view.View.OnUnhandledKeyEventListener
  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int
     
    static final int
     
    static final int
     
    static final int
     
    static final int
     

    Fields inherited from class android.view.SurfaceView

    SURFACE_LIFECYCLE_DEFAULT, SURFACE_LIFECYCLE_FOLLOWS_ATTACHMENT, SURFACE_LIFECYCLE_FOLLOWS_VISIBILITY

    Fields inherited from class android.view.View

    ACCESSIBILITY_DATA_SENSITIVE_AUTO, ACCESSIBILITY_DATA_SENSITIVE_NO, ACCESSIBILITY_DATA_SENSITIVE_YES, ACCESSIBILITY_LIVE_REGION_ASSERTIVE, ACCESSIBILITY_LIVE_REGION_NONE, ACCESSIBILITY_LIVE_REGION_POLITE, ALPHA, AUTOFILL_FLAG_INCLUDE_NOT_IMPORTANT_VIEWS, AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_DATE, AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_DAY, AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_MONTH, AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_YEAR, AUTOFILL_HINT_CREDIT_CARD_NUMBER, AUTOFILL_HINT_CREDIT_CARD_SECURITY_CODE, AUTOFILL_HINT_EMAIL_ADDRESS, AUTOFILL_HINT_NAME, AUTOFILL_HINT_PASSWORD, AUTOFILL_HINT_PHONE, AUTOFILL_HINT_POSTAL_ADDRESS, AUTOFILL_HINT_POSTAL_CODE, AUTOFILL_HINT_USERNAME, AUTOFILL_TYPE_DATE, AUTOFILL_TYPE_LIST, AUTOFILL_TYPE_NONE, AUTOFILL_TYPE_TEXT, AUTOFILL_TYPE_TOGGLE, DRAG_FLAG_ACCESSIBILITY_ACTION, DRAG_FLAG_GLOBAL, DRAG_FLAG_GLOBAL_PERSISTABLE_URI_PERMISSION, DRAG_FLAG_GLOBAL_PREFIX_URI_PERMISSION, DRAG_FLAG_GLOBAL_URI_READ, DRAG_FLAG_GLOBAL_URI_WRITE, DRAG_FLAG_OPAQUE, FIND_VIEWS_WITH_CONTENT_DESCRIPTION, FIND_VIEWS_WITH_TEXT, FOCUS_BACKWARD, FOCUS_DOWN, FOCUS_FORWARD, FOCUS_LEFT, FOCUS_RIGHT, FOCUS_UP, FOCUSABLE, FOCUSABLE_AUTO, FOCUSABLES_ALL, FOCUSABLES_TOUCH_MODE, GONE, HAPTIC_FEEDBACK_ENABLED, IMPORTANT_FOR_ACCESSIBILITY_AUTO, IMPORTANT_FOR_ACCESSIBILITY_NO, IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS, IMPORTANT_FOR_ACCESSIBILITY_YES, IMPORTANT_FOR_AUTOFILL_AUTO, IMPORTANT_FOR_AUTOFILL_NO, IMPORTANT_FOR_AUTOFILL_NO_EXCLUDE_DESCENDANTS, IMPORTANT_FOR_AUTOFILL_YES, IMPORTANT_FOR_AUTOFILL_YES_EXCLUDE_DESCENDANTS, IMPORTANT_FOR_CONTENT_CAPTURE_AUTO, IMPORTANT_FOR_CONTENT_CAPTURE_NO, IMPORTANT_FOR_CONTENT_CAPTURE_NO_EXCLUDE_DESCENDANTS, IMPORTANT_FOR_CONTENT_CAPTURE_YES, IMPORTANT_FOR_CONTENT_CAPTURE_YES_EXCLUDE_DESCENDANTS, INVISIBLE, KEEP_SCREEN_ON, LAYER_TYPE_HARDWARE, LAYER_TYPE_NONE, LAYER_TYPE_SOFTWARE, LAYOUT_DIRECTION_INHERIT, LAYOUT_DIRECTION_LOCALE, LAYOUT_DIRECTION_LTR, LAYOUT_DIRECTION_RTL, MEASURED_HEIGHT_STATE_SHIFT, MEASURED_SIZE_MASK, MEASURED_STATE_MASK, MEASURED_STATE_TOO_SMALL, NO_ID, NOT_FOCUSABLE, OVER_SCROLL_ALWAYS, OVER_SCROLL_IF_CONTENT_SCROLLS, OVER_SCROLL_NEVER, ROTATION, ROTATION_X, ROTATION_Y, SCALE_X, SCALE_Y, SCREEN_STATE_OFF, SCREEN_STATE_ON, SCROLL_AXIS_HORIZONTAL, SCROLL_AXIS_NONE, SCROLL_AXIS_VERTICAL, SCROLL_CAPTURE_HINT_AUTO, SCROLL_CAPTURE_HINT_EXCLUDE, SCROLL_CAPTURE_HINT_EXCLUDE_DESCENDANTS, SCROLL_CAPTURE_HINT_INCLUDE, SCROLL_INDICATOR_BOTTOM, SCROLL_INDICATOR_END, SCROLL_INDICATOR_LEFT, SCROLL_INDICATOR_RIGHT, SCROLL_INDICATOR_START, SCROLL_INDICATOR_TOP, SCROLLBAR_POSITION_DEFAULT, SCROLLBAR_POSITION_LEFT, SCROLLBAR_POSITION_RIGHT, SCROLLBARS_INSIDE_INSET, SCROLLBARS_INSIDE_OVERLAY, SCROLLBARS_OUTSIDE_INSET, SCROLLBARS_OUTSIDE_OVERLAY, SOUND_EFFECTS_ENABLED, TEXT_ALIGNMENT_CENTER, TEXT_ALIGNMENT_GRAVITY, TEXT_ALIGNMENT_INHERIT, TEXT_ALIGNMENT_TEXT_END, TEXT_ALIGNMENT_TEXT_START, TEXT_ALIGNMENT_VIEW_END, TEXT_ALIGNMENT_VIEW_START, TEXT_DIRECTION_ANY_RTL, TEXT_DIRECTION_FIRST_STRONG, TEXT_DIRECTION_FIRST_STRONG_LTR, TEXT_DIRECTION_FIRST_STRONG_RTL, TEXT_DIRECTION_INHERIT, TEXT_DIRECTION_LOCALE, TEXT_DIRECTION_LTR, TEXT_DIRECTION_RTL, TRANSLATION_X, TRANSLATION_Y, TRANSLATION_Z, VISIBLE, X, Y, Z
  • Constructor Summary

    Constructors
    Constructor
    Description
    CameraBridgeViewBase(android.content.Context context, int cameraId)
     
    CameraBridgeViewBase(android.content.Context context, android.util.AttributeSet attrs)
     
  • Method Summary

    Modifier and Type
    Method
    Description
    void
     
    void
    This method is provided for clients, so they can disable camera connection and stop the delivery of frames even though the surface view itself is not destroyed and still stays on the screen
    void
    This method enables label with fps value on the screen
    void
    This method is provided for clients, so they can enable the camera connection.
    void
    setCameraIndex(int cameraIndex)
    Sets the camera index
    void
    This method is provided for clients, so they can signal camera permission has been granted.
    void
    SetCaptureFormat(int format)
     
    void
     
    void
     
    void
    setMaxFrameSize(int maxWidth, int maxHeight)
    This method sets the maximum size that camera frame is allowed to be.
    void
    surfaceChanged(android.view.SurfaceHolder arg0, int arg1, int arg2, int arg3)
     
    void
    surfaceCreated(android.view.SurfaceHolder holder)
     
    void
    surfaceDestroyed(android.view.SurfaceHolder holder)
     

    Methods inherited from class android.view.SurfaceView

    applyTransactionToFrame, draw, gatherTransparentRegion, getHolder, getHostToken, getImportantForAccessibility, getSurfaceControl, hasOverlappingRendering, setAlpha, setChildSurfacePackage, setClipBounds, setSecure, setSurfaceLifecycle, setVisibility, setZOrderMediaOverlay, setZOrderOnTop

    Methods inherited from class android.view.View

    addChildrenForAccessibility, addExtraDataToAccessibilityNodeInfo, addFocusables, addFocusables, addKeyboardNavigationClusters, addOnAttachStateChangeListener, addOnLayoutChangeListener, addOnUnhandledKeyEventListener, addTouchables, animate, announceForAccessibility, autofill, autofill, bringToFront, buildLayer, callOnClick, cancelDragAndDrop, cancelLongPress, cancelPendingInputEvents, canResolveLayoutDirection, canResolveTextAlignment, canResolveTextDirection, canScrollHorizontally, canScrollVertically, checkInputConnectionProxy, clearAnimation, clearFocus, clearViewTranslationCallback, combineMeasuredStates, computeScroll, computeSystemWindowInsets, createAccessibilityNodeInfo, createContextMenu, dispatchApplyWindowInsets, dispatchCapturedPointerEvent, dispatchConfigurationChanged, dispatchCreateViewTranslationRequest, dispatchDisplayHint, dispatchDragEvent, dispatchDrawableHotspotChanged, dispatchFinishTemporaryDetach, dispatchGenericMotionEvent, dispatchKeyEvent, dispatchKeyEventPreIme, dispatchKeyShortcutEvent, dispatchNestedFling, dispatchNestedPreFling, dispatchNestedPrePerformAccessibilityAction, dispatchNestedPreScroll, dispatchNestedScroll, dispatchPointerCaptureChanged, dispatchPopulateAccessibilityEvent, dispatchProvideAutofillStructure, dispatchProvideStructure, dispatchScrollCaptureSearch, dispatchStartTemporaryDetach, dispatchTouchEvent, dispatchTrackballEvent, dispatchUnhandledMove, dispatchWindowFocusChanged, dispatchWindowInsetsAnimationEnd, dispatchWindowInsetsAnimationPrepare, dispatchWindowInsetsAnimationProgress, dispatchWindowInsetsAnimationStart, dispatchWindowVisibilityChanged, drawableHotspotChanged, findFocus, findOnBackInvokedDispatcher, findViewById, findViewsWithText, findViewWithTag, focusSearch, forceHasOverlappingRendering, forceLayout, generateDisplayHash, generateViewId, getAccessibilityClassName, getAccessibilityDelegate, getAccessibilityLiveRegion, getAccessibilityNodeProvider, getAccessibilityPaneTitle, getAccessibilityTraversalAfter, getAccessibilityTraversalBefore, getAllowedHandwritingDelegatePackageName, getAllowedHandwritingDelegatorPackageName, getAlpha, getAnimation, getAnimationMatrix, getApplicationWindowToken, getAttributeResolutionStack, getAttributeSourceResourceMap, getAutofillHints, getAutofillId, getAutofillType, getAutofillValue, getBackground, getBackgroundTintBlendMode, getBackgroundTintList, getBackgroundTintMode, getBaseline, getBottom, getCameraDistance, getClipBounds, getClipBounds, getClipToOutline, getContentCaptureSession, getContentDescription, getContext, getDefaultFocusHighlightEnabled, getDefaultSize, getDisplay, getDrawableState, getDrawingRect, getDrawingTime, getElevation, getExplicitStyle, getFilterTouchesWhenObscured, getFitsSystemWindows, getFocusable, getFocusables, getFocusedRect, getForeground, getForegroundGravity, getForegroundTintBlendMode, getForegroundTintList, getForegroundTintMode, getGlobalVisibleRect, getGlobalVisibleRect, getHandler, getHandwritingBoundsOffsetBottom, getHandwritingBoundsOffsetLeft, getHandwritingBoundsOffsetRight, getHandwritingBoundsOffsetTop, getHandwritingDelegatorCallback, getHasOverlappingRendering, getHeight, getHitRect, getHorizontalFadingEdgeLength, getHorizontalScrollbarThumbDrawable, getHorizontalScrollbarTrackDrawable, getId, getImportantForAutofill, getImportantForContentCapture, getKeepScreenOn, getKeyDispatcherState, getLabelFor, getLayerType, getLayoutDirection, getLayoutParams, getLeft, getLocalVisibleRect, getLocationInSurface, getLocationInWindow, getLocationOnScreen, getMatrix, getMeasuredHeight, getMeasuredHeightAndState, getMeasuredState, getMeasuredWidth, getMeasuredWidthAndState, getMinimumHeight, getMinimumWidth, getNextClusterForwardId, getNextFocusDownId, getNextFocusForwardId, getNextFocusLeftId, getNextFocusRightId, getNextFocusUpId, getOnFocusChangeListener, getOutlineAmbientShadowColor, getOutlineProvider, getOutlineSpotShadowColor, getOverlay, getOverScrollMode, getPaddingBottom, getPaddingEnd, getPaddingLeft, getPaddingRight, getPaddingStart, getPaddingTop, getParent, getParentForAccessibility, getPivotX, getPivotY, getPointerIcon, getPreferKeepClearRects, getReceiveContentMimeTypes, getResources, getRevealOnFocusHint, getRight, getRootSurfaceControl, getRootView, getRootWindowInsets, getRotation, getRotationX, getRotationY, getScaleX, getScaleY, getScrollBarDefaultDelayBeforeFade, getScrollBarFadeDuration, getScrollBarSize, getScrollBarStyle, getScrollCaptureHint, getScrollIndicators, getScrollX, getScrollY, getSolidColor, getSourceLayoutResId, getStateDescription, getStateListAnimator, getSystemGestureExclusionRects, getTag, getTag, getTextAlignment, getTextDirection, getTooltipText, getTop, getTouchables, getTouchDelegate, getTransitionAlpha, getTransitionName, getTranslationX, getTranslationY, getTranslationZ, getUniqueDrawingId, getVerticalFadingEdgeLength, getVerticalScrollbarPosition, getVerticalScrollbarThumbDrawable, getVerticalScrollbarTrackDrawable, getVerticalScrollbarWidth, getViewTranslationResponse, getViewTreeObserver, getVisibility, getWidth, getWindowId, getWindowInsetsController, getWindowToken, getWindowVisibility, getWindowVisibleDisplayFrame, getX, getY, getZ, hasExplicitFocusable, hasFocus, hasFocusable, hasNestedScrollingParent, hasOnClickListeners, hasOnLongClickListeners, hasPointerCapture, hasTransientState, hasWindowFocus, inflate, invalidate, invalidateDrawable, invalidateOutline, isAccessibilityDataSensitive, isAccessibilityFocused, isAccessibilityHeading, isActivated, isAttachedToWindow, isAutoHandwritingEnabled, isClickable, isContextClickable, isCredential, isDirty, isDuplicateParentStateEnabled, isEnabled, isFocusable, isFocusableInTouchMode, isFocused, isFocusedByDefault, isForceDarkAllowed, isHandwritingDelegate, isHapticFeedbackEnabled, isHardwareAccelerated, isHorizontalFadingEdgeEnabled, isHorizontalScrollBarEnabled, isHovered, isImportantForAccessibility, isImportantForAutofill, isImportantForContentCapture, isInEditMode, isInLayout, isInTouchMode, isKeyboardNavigationCluster, isLaidOut, isLayoutDirectionResolved, isLayoutRequested, isLongClickable, isNestedScrollingEnabled, isOpaque, isPaddingRelative, isPivotSet, isPreferKeepClear, isPressed, isSaveEnabled, isSaveFromParentEnabled, isScreenReaderFocusable, isScrollbarFadingEnabled, isScrollContainer, isSelected, isShowingLayoutBounds, isShown, isSoundEffectsEnabled, isTemporarilyDetached, isTextAlignmentResolved, isTextDirectionResolved, isVerticalFadingEdgeEnabled, isVerticalScrollBarEnabled, isVisibleToUserForAutofill, jumpDrawablesToCurrentState, keyboardNavigationClusterSearch, layout, measure, offsetLeftAndRight, offsetTopAndBottom, onApplyWindowInsets, onCancelPendingInputEvents, onCapturedPointerEvent, onCheckIsTextEditor, onCreateInputConnection, onCreateViewTranslationRequest, onCreateVirtualViewTranslationRequests, onDragEvent, onDrawForeground, onFilterTouchEventForSecurity, onFinishTemporaryDetach, onGenericMotionEvent, onHoverChanged, onHoverEvent, onInitializeAccessibilityEvent, onInitializeAccessibilityNodeInfo, onKeyDown, onKeyLongPress, onKeyMultiple, onKeyPreIme, onKeyShortcut, onKeyUp, onPointerCaptureChange, onPopulateAccessibilityEvent, onProvideAutofillStructure, onProvideAutofillVirtualStructure, onProvideContentCaptureStructure, onProvideStructure, onProvideVirtualStructure, onReceiveContent, onResolvePointerIcon, onRtlPropertiesChanged, onScreenStateChanged, onScrollCaptureSearch, onStartTemporaryDetach, onTouchEvent, onTrackballEvent, onViewTranslationResponse, onVirtualViewTranslationResponses, onVisibilityAggregated, onWindowFocusChanged, performAccessibilityAction, performClick, performContextClick, performContextClick, performHapticFeedback, performHapticFeedback, performLongClick, performLongClick, performReceiveContent, playSoundEffect, post, postDelayed, postInvalidate, postInvalidate, postInvalidateDelayed, postInvalidateDelayed, postInvalidateOnAnimation, postInvalidateOnAnimation, postOnAnimation, postOnAnimationDelayed, refreshDrawableState, releasePointerCapture, removeCallbacks, removeOnAttachStateChangeListener, removeOnLayoutChangeListener, removeOnUnhandledKeyEventListener, requestApplyInsets, requestFocus, requestFocus, requestFocus, requestFocusFromTouch, requestLayout, requestPointerCapture, requestRectangleOnScreen, requestRectangleOnScreen, requestUnbufferedDispatch, requestUnbufferedDispatch, requireViewById, resetPivot, resolveSize, resolveSizeAndState, restoreDefaultFocus, restoreHierarchyState, saveAttributeDataForStyleable, saveHierarchyState, scheduleDrawable, scrollBy, scrollTo, sendAccessibilityEvent, sendAccessibilityEventUnchecked, setAccessibilityDataSensitive, setAccessibilityDelegate, setAccessibilityHeading, setAccessibilityLiveRegion, setAccessibilityPaneTitle, setAccessibilityTraversalAfter, setAccessibilityTraversalBefore, setActivated, setAllowClickWhenDisabled, setAllowedHandwritingDelegatePackage, setAllowedHandwritingDelegatorPackage, setAnimation, setAnimationMatrix, setAutofillHints, setAutofillId, setAutoHandwritingEnabled, setBackground, setBackgroundColor, setBackgroundResource, setBackgroundTintBlendMode, setBackgroundTintList, setBackgroundTintMode, setBottom, setCameraDistance, setClickable, setClipToOutline, setContentCaptureSession, setContentDescription, setContextClickable, setDefaultFocusHighlightEnabled, setDuplicateParentStateEnabled, setElevation, setEnabled, setFadingEdgeLength, setFilterTouchesWhenObscured, setFitsSystemWindows, setFocusable, setFocusable, setFocusableInTouchMode, setFocusedByDefault, setForceDarkAllowed, setForeground, setForegroundGravity, setForegroundTintBlendMode, setForegroundTintList, setForegroundTintMode, setHandwritingBoundsOffsets, setHandwritingDelegatorCallback, setHapticFeedbackEnabled, setHasTransientState, setHorizontalFadingEdgeEnabled, setHorizontalScrollBarEnabled, setHorizontalScrollbarThumbDrawable, setHorizontalScrollbarTrackDrawable, setHovered, setId, setImportantForAccessibility, setImportantForAutofill, setImportantForContentCapture, setIsCredential, setIsHandwritingDelegate, setKeepScreenOn, setKeyboardNavigationCluster, setLabelFor, setLayerPaint, setLayerType, setLayoutDirection, setLayoutParams, setLeft, setLeftTopRightBottom, setLongClickable, setMinimumHeight, setMinimumWidth, setNestedScrollingEnabled, setNextClusterForwardId, setNextFocusDownId, setNextFocusForwardId, setNextFocusLeftId, setNextFocusRightId, setNextFocusUpId, setOnApplyWindowInsetsListener, setOnCapturedPointerListener, setOnClickListener, setOnContextClickListener, setOnCreateContextMenuListener, setOnDragListener, setOnFocusChangeListener, setOnGenericMotionListener, setOnHoverListener, setOnKeyListener, setOnLongClickListener, setOnReceiveContentListener, setOnScrollChangeListener, setOnTouchListener, setOutlineAmbientShadowColor, setOutlineProvider, setOutlineSpotShadowColor, setOverScrollMode, setPadding, setPaddingRelative, setPivotX, setPivotY, setPointerIcon, setPreferKeepClear, setPreferKeepClearRects, setPressed, setRenderEffect, setRevealOnFocusHint, setRight, setRotation, setRotationX, setRotationY, setSaveEnabled, setSaveFromParentEnabled, setScaleX, setScaleY, setScreenReaderFocusable, setScrollBarDefaultDelayBeforeFade, setScrollBarFadeDuration, setScrollbarFadingEnabled, setScrollBarSize, setScrollBarStyle, setScrollCaptureCallback, setScrollCaptureHint, setScrollContainer, setScrollIndicators, setScrollIndicators, setScrollX, setScrollY, setSelected, setSoundEffectsEnabled, setStateDescription, setStateListAnimator, setSystemGestureExclusionRects, setTag, setTag, setTextAlignment, setTextDirection, setTooltipText, setTop, setTouchDelegate, setTransitionAlpha, setTransitionName, setTransitionVisibility, setTranslationX, setTranslationY, setTranslationZ, setVerticalFadingEdgeEnabled, setVerticalScrollBarEnabled, setVerticalScrollbarPosition, setVerticalScrollbarThumbDrawable, setVerticalScrollbarTrackDrawable, setViewTranslationCallback, setWillNotDraw, setWindowInsetsAnimationCallback, setX, setY, setZ, showContextMenu, showContextMenu, startActionMode, startActionMode, startAnimation, startDragAndDrop, startNestedScroll, stopNestedScroll, toString, transformMatrixToGlobal, transformMatrixToLocal, unscheduleDrawable, unscheduleDrawable, updateDragShadow, willNotDraw

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
  • Field Details

  • Constructor Details

    • CameraBridgeViewBase

      public CameraBridgeViewBase(android.content.Context context, int cameraId)
    • CameraBridgeViewBase

      public CameraBridgeViewBase(android.content.Context context, android.util.AttributeSet attrs)
  • Method Details

    • setCameraIndex

      public void setCameraIndex(int cameraIndex)
      Sets the camera index
      Parameters:
      cameraIndex - new camera index
    • surfaceChanged

      public void surfaceChanged(android.view.SurfaceHolder arg0, int arg1, int arg2, int arg3)
      Specified by:
      surfaceChanged in interface android.view.SurfaceHolder.Callback
    • surfaceCreated

      public void surfaceCreated(android.view.SurfaceHolder holder)
      Specified by:
      surfaceCreated in interface android.view.SurfaceHolder.Callback
    • surfaceDestroyed

      public void surfaceDestroyed(android.view.SurfaceHolder holder)
      Specified by:
      surfaceDestroyed in interface android.view.SurfaceHolder.Callback
    • setCameraPermissionGranted

      public void setCameraPermissionGranted()
      This method is provided for clients, so they can signal camera permission has been granted. The actual onCameraViewStarted callback will be delivered only after setCameraPermissionGranted and enableView have been called and surface is available
    • enableView

      public void enableView()
      This method is provided for clients, so they can enable the camera connection. The actual onCameraViewStarted callback will be delivered only after setCameraPermissionGranted and enableView have been called and surface is available
    • disableView

      public void disableView()
      This method is provided for clients, so they can disable camera connection and stop the delivery of frames even though the surface view itself is not destroyed and still stays on the screen
    • enableFpsMeter

      public void enableFpsMeter()
      This method enables label with fps value on the screen
    • disableFpsMeter

      public void disableFpsMeter()
    • setCvCameraViewListener

      public void setCvCameraViewListener(CameraBridgeViewBase.CvCameraViewListener2 listener)
      Parameters:
      listener -
    • setCvCameraViewListener

      public void setCvCameraViewListener(CameraBridgeViewBase.CvCameraViewListener listener)
    • setMaxFrameSize

      public void setMaxFrameSize(int maxWidth, int maxHeight)
      This method sets the maximum size that camera frame is allowed to be. When selecting size - the biggest size which less or equal the size set will be selected. As an example - we set setMaxFrameSize(200,200) and we have 176x152 and 320x240 sizes. The preview frame will be selected with 176x152 size. This method is useful when need to restrict the size of preview frame for some reason (for example for video recording)
      Parameters:
      maxWidth - - the maximum width allowed for camera frame.
      maxHeight - - the maximum height allowed for camera frame
    • SetCaptureFormat

      public void SetCaptureFormat(int format)