android.view.accessibility.AccessibilityNodeInfo#setBoundsInParent ( )源码实例Demo

下面列出了android.view.accessibility.AccessibilityNodeInfo#setBoundsInParent ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： android_9.0.0_r45 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibiltyNodeInfoForInputText(
        int left, int top, int right, int bottom) {
    AccessibilityNodeInfo info = mInputText.createAccessibilityNodeInfo();
    info.setSource(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
    if (mAccessibilityFocusedView != VIRTUAL_VIEW_ID_INPUT) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == VIRTUAL_VIEW_ID_INPUT) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    Rect boundsInParent = mTempRect;
    boundsInParent.set(left, top, right, bottom);
    info.setVisibleToUser(isVisibleToUser(boundsInParent));
    info.setBoundsInParent(boundsInParent);
    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    info.setBoundsInScreen(boundsInScreen);
    return info;
}

源代码2 项目： android_9.0.0_r45 文件： RadialTimePickerView.java

@Override
protected void onPopulateNodeForVirtualView(int virtualViewId, AccessibilityNodeInfo node) {
    node.setClassName(getClass().getName());
    node.addAction(AccessibilityAction.ACTION_CLICK);

    final int type = getTypeFromId(virtualViewId);
    final int value = getValueFromId(virtualViewId);
    final CharSequence description = getVirtualViewDescription(type, value);
    node.setContentDescription(description);

    getBoundsForVirtualView(virtualViewId, mTempRect);
    node.setBoundsInParent(mTempRect);

    final boolean selected = isVirtualViewSelected(type, value);
    node.setSelected(selected);

    final int nextId = getVirtualViewIdAfter(type, value);
    if (nextId != INVALID_ID) {
        node.setTraversalBefore(RadialTimePickerView.this, nextId);
    }
}

源代码3 项目： ticdesign 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibiltyNodeInfoForInputText(
        int left, int top, int right, int bottom) {
    AccessibilityNodeInfo info = mInputText.createAccessibilityNodeInfo();
    info.setSource(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
    if (mAccessibilityFocusedView != VIRTUAL_VIEW_ID_INPUT) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == VIRTUAL_VIEW_ID_INPUT) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    Rect boundsInParent = mTempRect;
    boundsInParent.set(left, top, right, bottom);
    // info.setVisibleToUser(isVisibleToUser(boundsInParent));
    info.setBoundsInParent(boundsInParent);
    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    info.setBoundsInScreen(boundsInScreen);
    return info;
}

源代码4 项目： NewXmPluginSDK 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibiltyNodeInfoForInputText(
        int left, int top, int right, int bottom) {
    AccessibilityNodeInfo info = mInputText.createAccessibilityNodeInfo();
    info.setSource(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
    if (mAccessibilityFocusedView != VIRTUAL_VIEW_ID_INPUT) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == VIRTUAL_VIEW_ID_INPUT) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    Rect boundsInParent = mTempRect;
    boundsInParent.set(left, top, right, bottom);
    info.setVisibleToUser(getVisibility() == View.VISIBLE);
    info.setBoundsInParent(boundsInParent);
    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    info.setBoundsInScreen(boundsInScreen);
    return info;
}

源代码5 项目： Dashchan 文件： DrawerLayout.java

/**
 * This should really be in AccessibilityNodeInfoCompat, but there unfortunately
 * seem to be a few elements that are not easily cloneable using the underlying API.
 * Leave it private here as it's not general-purpose useful.
 */
private void copyNodeInfoNoChildren(AccessibilityNodeInfo dest, AccessibilityNodeInfo src) {
	final Rect rect = mTmpRect;

	src.getBoundsInParent(rect);
	dest.setBoundsInParent(rect);

	src.getBoundsInScreen(rect);
	dest.setBoundsInScreen(rect);

	dest.setVisibleToUser(src.isVisibleToUser());
	dest.setPackageName(src.getPackageName());
	dest.setClassName(src.getClassName());
	dest.setContentDescription(src.getContentDescription());

	dest.setEnabled(src.isEnabled());
	dest.setClickable(src.isClickable());
	dest.setFocusable(src.isFocusable());
	dest.setFocused(src.isFocused());
	dest.setAccessibilityFocused(src.isAccessibilityFocused());
	dest.setSelected(src.isSelected());
	dest.setLongClickable(src.isLongClickable());

	dest.addAction(src.getActions());
}

源代码6 项目： android_9.0.0_r45 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId,
        String text, int left, int top, int right, int bottom) {
    AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
    info.setClassName(Button.class.getName());
    info.setPackageName(mContext.getPackageName());
    info.setSource(NumberPicker.this, virtualViewId);
    info.setParent(NumberPicker.this);
    info.setText(text);
    info.setClickable(true);
    info.setLongClickable(true);
    info.setEnabled(NumberPicker.this.isEnabled());
    Rect boundsInParent = mTempRect;
    boundsInParent.set(left, top, right, bottom);
    info.setVisibleToUser(isVisibleToUser(boundsInParent));
    info.setBoundsInParent(boundsInParent);
    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    info.setBoundsInScreen(boundsInScreen);

    if (mAccessibilityFocusedView != virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    if (NumberPicker.this.isEnabled()) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
    }

    return info;
}

源代码7 项目： android_9.0.0_r45 文件： SimpleMonthView.java

@Override
protected void onPopulateNodeForVirtualView(int virtualViewId, AccessibilityNodeInfo node) {
    final boolean hasBounds = getBoundsForDay(virtualViewId, mTempRect);

    if (!hasBounds) {
        // The day is invalid, kill the node.
        mTempRect.setEmpty();
        node.setContentDescription("");
        node.setBoundsInParent(mTempRect);
        node.setVisibleToUser(false);
        return;
    }

    node.setText(getDayText(virtualViewId));
    node.setContentDescription(getDayDescription(virtualViewId));
    node.setBoundsInParent(mTempRect);

    final boolean isDayEnabled = isDayEnabled(virtualViewId);
    if (isDayEnabled) {
        node.addAction(AccessibilityAction.ACTION_CLICK);
    }

    node.setEnabled(isDayEnabled);

    if (virtualViewId == mActivatedDay) {
        // TODO: This should use activated once that's supported.
        node.setChecked(true);
    }

}

源代码8 项目： ticdesign 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId,
        String text, int left, int top, int right, int bottom) {
    AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
    info.setClassName(Button.class.getName());
    info.setPackageName(getContext().getPackageName());
    info.setSource(NumberPicker.this, virtualViewId);
    info.setParent(NumberPicker.this);
    info.setText(text);
    info.setClickable(true);
    info.setLongClickable(true);
    info.setEnabled(NumberPicker.this.isEnabled());
    Rect boundsInParent = mTempRect;
    boundsInParent.set(left, top, right, bottom);
    // info.setVisibleToUser(isVisibleToUser(boundsInParent));
    info.setBoundsInParent(boundsInParent);
    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    info.setBoundsInScreen(boundsInScreen);

    if (mAccessibilityFocusedView != virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    if (NumberPicker.this.isEnabled()) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
    }

    return info;
}

源代码9 项目： NewXmPluginSDK 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId,
        String text, int left, int top, int right, int bottom) {
    AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
    info.setClassName(Button.class.getName());
    info.setPackageName(getContext().getPackageName());
    info.setSource(NumberPicker.this, virtualViewId);
    info.setParent(NumberPicker.this);
    info.setText(text);
    info.setClickable(true);
    info.setLongClickable(true);
    info.setEnabled(NumberPicker.this.isEnabled());
    Rect boundsInParent = mTempRect;
    boundsInParent.set(left, top, right, bottom);
    info.setVisibleToUser(getVisibility() == View.VISIBLE);
    info.setBoundsInParent(boundsInParent);
    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    info.setBoundsInScreen(boundsInScreen);

    if (mAccessibilityFocusedView != virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    if (NumberPicker.this.isEnabled()) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
    }

    return info;
}

源代码10 项目： GifAssistant 文件： TextPicker.java

private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId,
                                                                          String text, int left, int top, int right, int bottom) {
    AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
    info.setClassName(Button.class.getName());
    info.setPackageName(getContext().getPackageName());
    info.setSource(TextPicker.this, virtualViewId);
    info.setParent(TextPicker.this);
    info.setText(text);
    info.setClickable(true);
    info.setLongClickable(true);
    info.setEnabled(TextPicker.this.isEnabled());
    Rect boundsInParent = mTempRect;
    boundsInParent.set(left, top, right, bottom);
    // TODO info.setVisibleToUser(isVisibleToUser(boundsInParent));
    info.setBoundsInParent(boundsInParent);
    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    info.setBoundsInScreen(boundsInScreen);

    if (mAccessibilityFocusedView != virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    if (TextPicker.this.isEnabled()) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
    }

    return info;
}

源代码11 项目： 365browser 文件： BrowserAccessibilityManager.java

private AccessibilityNodeInfo createNodeForHost(int rootId) {
    // Since we don't want the parent to be focusable, but we can't remove
    // actions from a node, copy over the necessary fields.
    final AccessibilityNodeInfo result = AccessibilityNodeInfo.obtain(mView);
    final AccessibilityNodeInfo source = AccessibilityNodeInfo.obtain(mView);
    mView.onInitializeAccessibilityNodeInfo(source);

    // Copy over parent and screen bounds.
    Rect rect = new Rect();
    source.getBoundsInParent(rect);
    result.setBoundsInParent(rect);
    source.getBoundsInScreen(rect);
    result.setBoundsInScreen(rect);

    // Set up the parent view, if applicable.
    final ViewParent parent = mView.getParentForAccessibility();
    if (parent instanceof View) {
        result.setParent((View) parent);
    }

    // Populate the minimum required fields.
    result.setVisibleToUser(source.isVisibleToUser());
    result.setEnabled(source.isEnabled());
    result.setPackageName(source.getPackageName());
    result.setClassName(source.getClassName());

    // Add the Chrome root node.
    if (isFrameInfoInitialized()) {
        result.addChild(mView, rootId);
    }

    return result;
}

源代码12 项目： zen4android 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId,
        String text, int left, int top, int right, int bottom) {
    AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
    info.setClassName(Button.class.getName());
    info.setPackageName(getContext().getPackageName());
    info.setSource(NumberPicker.this, virtualViewId);
    info.setParent(NumberPicker.this);
    info.setText(text);
    info.setClickable(true);
    info.setLongClickable(true);
    info.setEnabled(NumberPicker.this.isEnabled());
    Rect boundsInParent = mTempRect;
    boundsInParent.set(left, top, right, bottom);
    // TODO info.setVisibleToUser(isVisibleToUser(boundsInParent));
    info.setBoundsInParent(boundsInParent);
    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    info.setBoundsInScreen(boundsInScreen);

    if (mAccessibilityFocusedView != virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == virtualViewId) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    if (NumberPicker.this.isEnabled()) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
    }

    return info;
}

源代码13 项目： android-chromium 文件： BrowserAccessibilityManager.java

@CalledByNative
private void setAccessibilityNodeInfoLocation(AccessibilityNodeInfo node,
        int absoluteLeft, int absoluteTop, int parentRelativeLeft, int parentRelativeTop,
        int width, int height, boolean isRootNode) {
    // First set the bounds in parent.
    Rect boundsInParent = new Rect(parentRelativeLeft, parentRelativeTop,
            parentRelativeLeft + width, parentRelativeTop + height);
    if (isRootNode) {
        // Offset of the web content relative to the View.
        boundsInParent.offset(0, (int) mRenderCoordinates.getContentOffsetYPix());
    }
    node.setBoundsInParent(boundsInParent);

    // Now set the absolute rect, which requires several transformations.
    Rect rect = new Rect(absoluteLeft, absoluteTop, absoluteLeft + width, absoluteTop + height);

    // Offset by the scroll position.
    rect.offset(-(int) mRenderCoordinates.getScrollX(),
                -(int) mRenderCoordinates.getScrollY());

    // Convert CSS (web) pixels to Android View pixels
    rect.left = (int) mRenderCoordinates.fromLocalCssToPix(rect.left);
    rect.top = (int) mRenderCoordinates.fromLocalCssToPix(rect.top);
    rect.bottom = (int) mRenderCoordinates.fromLocalCssToPix(rect.bottom);
    rect.right = (int) mRenderCoordinates.fromLocalCssToPix(rect.right);

    // Offset by the location of the web content within the view.
    rect.offset(0,
                (int) mRenderCoordinates.getContentOffsetYPix());

    // Finally offset by the location of the view within the screen.
    final int[] viewLocation = new int[2];
    mView.getLocationOnScreen(viewLocation);
    rect.offset(viewLocation[0], viewLocation[1]);

    node.setBoundsInScreen(rect);
}

源代码14 项目： android-chromium 文件： BrowserAccessibilityManager.java

@CalledByNative
private void setAccessibilityNodeInfoLocation(AccessibilityNodeInfo node,
        int absoluteLeft, int absoluteTop, int parentRelativeLeft, int parentRelativeTop,
        int width, int height, boolean isRootNode) {
    // First set the bounds in parent.
    Rect boundsInParent = new Rect(parentRelativeLeft, parentRelativeTop,
            parentRelativeLeft + width, parentRelativeTop + height);
    if (isRootNode) {
        // Offset of the web content relative to the View.
        boundsInParent.offset(0, (int) mRenderCoordinates.getContentOffsetYPix());
    }
    node.setBoundsInParent(boundsInParent);

    // Now set the absolute rect, which requires several transformations.
    Rect rect = new Rect(absoluteLeft, absoluteTop, absoluteLeft + width, absoluteTop + height);

    // Offset by the scroll position.
    rect.offset(-(int) mRenderCoordinates.getScrollX(),
                -(int) mRenderCoordinates.getScrollY());

    // Convert CSS (web) pixels to Android View pixels
    rect.left = (int) mRenderCoordinates.fromLocalCssToPix(rect.left);
    rect.top = (int) mRenderCoordinates.fromLocalCssToPix(rect.top);
    rect.bottom = (int) mRenderCoordinates.fromLocalCssToPix(rect.bottom);
    rect.right = (int) mRenderCoordinates.fromLocalCssToPix(rect.right);

    // Offset by the location of the web content within the view.
    rect.offset(0,
                (int) mRenderCoordinates.getContentOffsetYPix());

    // Finally offset by the location of the view within the screen.
    final int[] viewLocation = new int[2];
    mView.getLocationOnScreen(viewLocation);
    rect.offset(viewLocation[0], viewLocation[1]);

    node.setBoundsInScreen(rect);
}

源代码15 项目： android_9.0.0_r45 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibilityNodeInfoForNumberPicker(int left, int top,
        int right, int bottom) {
    AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
    info.setClassName(NumberPicker.class.getName());
    info.setPackageName(mContext.getPackageName());
    info.setSource(NumberPicker.this);

    if (hasVirtualDecrementButton()) {
        info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_DECREMENT);
    }
    info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
    if (hasVirtualIncrementButton()) {
        info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INCREMENT);
    }

    info.setParent((View) getParentForAccessibility());
    info.setEnabled(NumberPicker.this.isEnabled());
    info.setScrollable(true);

    final float applicationScale =
        getContext().getResources().getCompatibilityInfo().applicationScale;

    Rect boundsInParent = mTempRect;
    boundsInParent.set(left, top, right, bottom);
    boundsInParent.scale(applicationScale);
    info.setBoundsInParent(boundsInParent);

    info.setVisibleToUser(isVisibleToUser());

    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    boundsInScreen.scale(applicationScale);
    info.setBoundsInScreen(boundsInScreen);

    if (mAccessibilityFocusedView != View.NO_ID) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == View.NO_ID) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    if (NumberPicker.this.isEnabled()) {
        if (getWrapSelectorWheel() || getValue() < getMaxValue()) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
        }
        if (getWrapSelectorWheel() || getValue() > getMinValue()) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
        }
    }

    return info;
}

源代码16 项目： NewXmPluginSDK 文件： NumberPicker.java

private AccessibilityNodeInfo createAccessibilityNodeInfoForNumberPicker(int left, int top,
        int right, int bottom) {
    AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
    info.setClassName(NumberPicker.class.getName());
    info.setPackageName(getContext().getPackageName());
    info.setSource(NumberPicker.this);

    if (hasVirtualDecrementButton()) {
        info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_DECREMENT);
    }
    info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
    if (hasVirtualIncrementButton()) {
        info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INCREMENT);
    }

    info.setParent((View) getParentForAccessibility());
    info.setEnabled(NumberPicker.this.isEnabled());
    info.setScrollable(true);

    Rect boundsInParent = mTempRect;

    boundsInParent.set(left, top, right, bottom);
    info.setBoundsInParent(boundsInParent);

    info.setVisibleToUser(getVisibility() == View.VISIBLE);

    Rect boundsInScreen = boundsInParent;
    int[] locationOnScreen = mTempArray;
    getLocationOnScreen(locationOnScreen);
    boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
    info.setBoundsInScreen(boundsInScreen);

    if (mAccessibilityFocusedView != View.NO_ID) {
        info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
    }
    if (mAccessibilityFocusedView == View.NO_ID) {
        info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    }
    if (NumberPicker.this.isEnabled()) {
        if (getWrapSelectorWheel() || getValue() < getMaxValue()) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
        }
        if (getWrapSelectorWheel() || getValue() > getMinValue()) {
            info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
        }
    }

    return info;
}

源代码17 项目： 365browser 文件： BrowserAccessibilityManager.java

@CalledByNative
private void setAccessibilityNodeInfoLocation(AccessibilityNodeInfo node,
        final int virtualViewId,
        int absoluteLeft, int absoluteTop, int parentRelativeLeft, int parentRelativeTop,
        int width, int height, boolean isRootNode) {
    // First set the bounds in parent.
    Rect boundsInParent = new Rect(parentRelativeLeft, parentRelativeTop,
            parentRelativeLeft + width, parentRelativeTop + height);
    if (isRootNode) {
        // Offset of the web content relative to the View.
        boundsInParent.offset(0, (int) mRenderCoordinates.getContentOffsetYPix());
    }
    node.setBoundsInParent(boundsInParent);

    // Now set the absolute rect, which requires several transformations.
    Rect rect = new Rect(absoluteLeft, absoluteTop, absoluteLeft + width, absoluteTop + height);

    // Offset by the scroll position.
    rect.offset(-(int) mRenderCoordinates.getScrollX(),
                -(int) mRenderCoordinates.getScrollY());

    // Convert CSS (web) pixels to Android View pixels
    rect.left = (int) mRenderCoordinates.fromLocalCssToPix(rect.left);
    rect.top = (int) mRenderCoordinates.fromLocalCssToPix(rect.top);
    rect.bottom = (int) mRenderCoordinates.fromLocalCssToPix(rect.bottom);
    rect.right = (int) mRenderCoordinates.fromLocalCssToPix(rect.right);

    // Offset by the location of the web content within the view.
    rect.offset(0,
                (int) mRenderCoordinates.getContentOffsetYPix());

    // Finally offset by the location of the view within the screen.
    final int[] viewLocation = new int[2];
    mView.getLocationOnScreen(viewLocation);
    rect.offset(viewLocation[0], viewLocation[1]);

    // Clip the node's bounding rect to the viewport bounds.
    int viewportRectTop = viewLocation[1] + (int) mRenderCoordinates.getContentOffsetYPix();
    int viewportRectBottom = viewportRectTop + mContentViewCore.getViewportHeightPix();
    if (rect.top < viewportRectTop) rect.top = viewportRectTop;
    if (rect.bottom > viewportRectBottom) rect.bottom = viewportRectBottom;

    node.setBoundsInScreen(rect);

    // Work around a bug in the Android framework where if the object with accessibility
    // focus moves, the accessibility focus rect is not updated - both the visual highlight,
    // and the location on the screen that's clicked if you double-tap. To work around this,
    // when we know the object with accessibility focus moved, move focus away and then
    // move focus right back to it, which tricks Android into updating its bounds.
    if (virtualViewId == mAccessibilityFocusId && virtualViewId != mCurrentRootId) {
        if (mAccessibilityFocusRect == null) {
            mAccessibilityFocusRect = rect;
        } else if (!mAccessibilityFocusRect.equals(rect)) {
            mAccessibilityFocusRect = rect;
            moveAccessibilityFocusToIdAndRefocusIfNeeded(virtualViewId);
        }
    }
}

方法所在类

android.view.accessibility.AccessibilityNodeInfo