am 8ce8cb05: Merge "Collapse contentInsets and View margins in Toolbars" into lmp-preview-dev (fb50dd58) · Commits · e / os / android_frameworks_base

core/java/android/widget/Toolbar.java

+107 −44

Original line number	Diff line number	Diff line
		@@ -127,6 +127,8 @@ public class Toolbar extends ViewGroup {
		// Clear me after use.
		private final ArrayList<View> mTempViews = new ArrayList<View>();

		private final int[] mTempMargins = new int[2];

		private OnMenuItemClickListener mOnMenuItemClickListener;

		private final ActionMenuView.OnMenuItemClickListener mMenuViewItemClickListener =
		@@ -928,12 +930,49 @@ public class Toolbar extends ViewGroup {
		child.measure(childWidthSpec, childHeightSpec);
		}

		/**
		* Returns the width + uncollapsed margins
		*/
		private int measureChildCollapseMargins(View child,
		int parentWidthMeasureSpec, int widthUsed,
		int parentHeightMeasureSpec, int heightUsed, int[] collapsingMargins) {
		final MarginLayoutParams lp = (MarginLayoutParams) child.getLayoutParams();

		final int leftDiff = lp.leftMargin - collapsingMargins[0];
		final int rightDiff = lp.rightMargin - collapsingMargins[1];
		final int leftMargin = Math.max(0, leftDiff);
		final int rightMargin = Math.max(0, rightDiff);
		final int hMargins = leftMargin + rightMargin;
		collapsingMargins[0] = Math.max(0, -leftDiff);
		collapsingMargins[1] = Math.max(0, -rightDiff);

		final int childWidthMeasureSpec = getChildMeasureSpec(parentWidthMeasureSpec,
		mPaddingLeft + mPaddingRight + hMargins + widthUsed, lp.width);
		final int childHeightMeasureSpec = getChildMeasureSpec(parentHeightMeasureSpec,
		mPaddingTop + mPaddingBottom + lp.topMargin + lp.bottomMargin
		+ heightUsed, lp.height);

		child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
		return child.getMeasuredWidth() + hMargins;
		}

		@Override
		protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
		int width = 0;
		int height = 0;
		int childState = 0;

		final int[] collapsingMargins = mTempMargins;
		final int marginStartIndex;
		final int marginEndIndex;
		if (isLayoutRtl()) {
		marginStartIndex = 1;
		marginEndIndex = 0;
		} else {
		marginStartIndex = 0;
		marginEndIndex = 1;
		}

		// System views measure first.

		int navWidth = 0;
		@@ -956,7 +995,9 @@ public class Toolbar extends ViewGroup {
		childState = combineMeasuredStates(childState, mCollapseButtonView.getMeasuredState());
		}

		width += Math.max(getContentInsetStart(), navWidth);
		final int contentInsetStart = getContentInsetStart();
		width += Math.max(contentInsetStart, navWidth);
		collapsingMargins[marginStartIndex] = Math.max(0, contentInsetStart - navWidth);

		int menuWidth = 0;
		if (shouldLayout(mMenuView)) {
		@@ -968,21 +1009,21 @@ public class Toolbar extends ViewGroup {
		childState = combineMeasuredStates(childState, mMenuView.getMeasuredState());
		}

		width += Math.max(getContentInsetEnd(), menuWidth);
		final int contentInsetEnd = getContentInsetEnd();
		width += Math.max(contentInsetEnd, menuWidth);
		collapsingMargins[marginEndIndex] = Math.max(0, contentInsetEnd - menuWidth);

		if (shouldLayout(mExpandedActionView)) {
		measureChildWithMargins(mExpandedActionView, widthMeasureSpec, width,
		heightMeasureSpec, 0);
		width += mExpandedActionView.getMeasuredWidth() +
		getHorizontalMargins(mExpandedActionView);
		width += measureChildCollapseMargins(mExpandedActionView, widthMeasureSpec, width,
		heightMeasureSpec, 0, collapsingMargins);
		height = Math.max(height, mExpandedActionView.getMeasuredHeight() +
		getVerticalMargins(mExpandedActionView));
		childState = combineMeasuredStates(childState, mExpandedActionView.getMeasuredState());
		}

		if (shouldLayout(mLogoView)) {
		measureChildWithMargins(mLogoView, widthMeasureSpec, width, heightMeasureSpec, 0);
		width += mLogoView.getMeasuredWidth() + getHorizontalMargins(mLogoView);
		width += measureChildCollapseMargins(mLogoView, widthMeasureSpec, width,
		heightMeasureSpec, 0, collapsingMargins);
		height = Math.max(height, mLogoView.getMeasuredHeight() +
		getVerticalMargins(mLogoView));
		childState = combineMeasuredStates(childState, mLogoView.getMeasuredState());
		@@ -993,17 +1034,18 @@ public class Toolbar extends ViewGroup {
		final int titleVertMargins = mTitleMarginTop + mTitleMarginBottom;
		final int titleHorizMargins = mTitleMarginStart + mTitleMarginEnd;
		if (shouldLayout(mTitleTextView)) {
		measureChildWithMargins(mTitleTextView, widthMeasureSpec, width + titleHorizMargins,
		heightMeasureSpec, titleVertMargins);
		titleWidth = measureChildCollapseMargins(mTitleTextView, widthMeasureSpec,
		width + titleHorizMargins, heightMeasureSpec, titleVertMargins,
		collapsingMargins);
		titleWidth = mTitleTextView.getMeasuredWidth() + getHorizontalMargins(mTitleTextView);
		titleHeight = mTitleTextView.getMeasuredHeight() + getVerticalMargins(mTitleTextView);
		childState = combineMeasuredStates(childState, mTitleTextView.getMeasuredState());
		}
		if (shouldLayout(mSubtitleTextView)) {
		measureChildWithMargins(mSubtitleTextView, widthMeasureSpec, width + titleHorizMargins,
		heightMeasureSpec, titleHeight + titleVertMargins);
		titleWidth = Math.max(titleWidth, mSubtitleTextView.getMeasuredWidth() +
		getHorizontalMargins(mSubtitleTextView));
		titleWidth = Math.max(titleWidth, measureChildCollapseMargins(mSubtitleTextView,
		widthMeasureSpec, width + titleHorizMargins,
		heightMeasureSpec, titleHeight + titleVertMargins,
		collapsingMargins));
		titleHeight += mSubtitleTextView.getMeasuredHeight() +
		getVerticalMargins(mSubtitleTextView);
		childState = combineMeasuredStates(childState, mSubtitleTextView.getMeasuredState());
		@@ -1021,8 +1063,8 @@ public class Toolbar extends ViewGroup {
		continue;
		}

		measureChildWithMargins(child, widthMeasureSpec, width, heightMeasureSpec, 0);
		width += child.getMeasuredWidth() + getHorizontalMargins(child);
		width += measureChildCollapseMargins(child, widthMeasureSpec, width,
		heightMeasureSpec, 0, collapsingMargins);
		height = Math.max(height, child.getMeasuredHeight() + getVerticalMargins(child));
		childState = combineMeasuredStates(childState, child.getMeasuredState());
		}
		@@ -1053,46 +1095,51 @@ public class Toolbar extends ViewGroup {
		int left = paddingLeft;
		int right = width - paddingRight;

		final int[] collapsingMargins = mTempMargins;
		collapsingMargins[0] = collapsingMargins[1] = 0;

		if (shouldLayout(mNavButtonView)) {
		if (isRtl) {
		right = layoutChildRight(mNavButtonView, right);
		right = layoutChildRight(mNavButtonView, right, collapsingMargins);
		} else {
		left = layoutChildLeft(mNavButtonView, left);
		left = layoutChildLeft(mNavButtonView, left, collapsingMargins);
		}
		}

		if (shouldLayout(mCollapseButtonView)) {
		if (isRtl) {
		right = layoutChildRight(mCollapseButtonView, right);
		right = layoutChildRight(mCollapseButtonView, right, collapsingMargins);
		} else {
		left = layoutChildLeft(mCollapseButtonView, left);
		left = layoutChildLeft(mCollapseButtonView, left, collapsingMargins);
		}
		}

		if (shouldLayout(mMenuView)) {
		if (isRtl) {
		left = layoutChildLeft(mMenuView, left);
		left = layoutChildLeft(mMenuView, left, collapsingMargins);
		} else {
		right = layoutChildRight(mMenuView, right);
		right = layoutChildRight(mMenuView, right, collapsingMargins);
		}
		}

		collapsingMargins[0] = Math.max(0, getContentInsetLeft() - left);
		collapsingMargins[1] = Math.max(0, getContentInsetRight() - (width - paddingRight - right));
		left = Math.max(left, getContentInsetLeft());
		right = Math.min(right, width - paddingRight - getContentInsetRight());

		if (shouldLayout(mExpandedActionView)) {
		if (isRtl) {
		right = layoutChildRight(mExpandedActionView, right);
		right = layoutChildRight(mExpandedActionView, right, collapsingMargins);
		} else {
		left = layoutChildLeft(mExpandedActionView, left);
		left = layoutChildLeft(mExpandedActionView, left, collapsingMargins);
		}
		}

		if (shouldLayout(mLogoView)) {
		if (isRtl) {
		right = layoutChildRight(mLogoView, right);
		right = layoutChildRight(mLogoView, right, collapsingMargins);
		} else {
		left = layoutChildLeft(mLogoView, left);
		left = layoutChildLeft(mLogoView, left, collapsingMargins);
		}
		}

		@@ -1141,48 +1188,52 @@ public class Toolbar extends ViewGroup {
		break;
		}
		if (isRtl) {
		final int rd = mTitleMarginStart - collapsingMargins[1];
		right -= Math.max(0, rd);
		collapsingMargins[1] = Math.max(0, -rd);
		int titleRight = right;
		int subtitleRight = right;

		if (layoutTitle) {
		final LayoutParams lp = (LayoutParams) mTitleTextView.getLayoutParams();
		titleRight -= lp.rightMargin + mTitleMarginStart;
		final int titleLeft = titleRight - mTitleTextView.getMeasuredWidth();
		final int titleBottom = titleTop + mTitleTextView.getMeasuredHeight();
		mTitleTextView.layout(titleLeft, titleTop, titleRight, titleBottom);
		titleRight = titleLeft - lp.leftMargin - mTitleMarginEnd;
		titleRight = titleLeft - mTitleMarginEnd;
		titleTop = titleBottom + lp.bottomMargin;
		}
		if (layoutSubtitle) {
		final LayoutParams lp = (LayoutParams) mSubtitleTextView.getLayoutParams();
		subtitleRight -= lp.rightMargin + mTitleMarginStart;
		titleTop += lp.topMargin;
		final int subtitleLeft = subtitleRight - mSubtitleTextView.getMeasuredWidth();
		final int subtitleBottom = titleTop + mSubtitleTextView.getMeasuredHeight();
		mSubtitleTextView.layout(subtitleLeft, titleTop, subtitleRight, subtitleBottom);
		subtitleRight = subtitleRight - lp.leftMargin - mTitleMarginEnd;
		subtitleRight = subtitleRight - mTitleMarginEnd;
		titleTop = subtitleBottom + lp.bottomMargin;
		}
		right = Math.max(titleRight, subtitleRight);
		} else {
		final int ld = mTitleMarginStart - collapsingMargins[0];
		left += Math.max(0, ld);
		collapsingMargins[0] = Math.max(0, -ld);
		int titleLeft = left;
		int subtitleLeft = left;

		if (layoutTitle) {
		final LayoutParams lp = (LayoutParams) mTitleTextView.getLayoutParams();
		titleLeft += lp.leftMargin + mTitleMarginStart;
		final int titleRight = titleLeft + mTitleTextView.getMeasuredWidth();
		final int titleBottom = titleTop + mTitleTextView.getMeasuredHeight();
		mTitleTextView.layout(titleLeft, titleTop, titleRight, titleBottom);
		titleLeft = titleRight + lp.rightMargin + mTitleMarginEnd;
		titleLeft = titleRight + mTitleMarginEnd;
		titleTop = titleBottom + lp.bottomMargin;
		}
		if (layoutSubtitle) {
		final LayoutParams lp = (LayoutParams) mSubtitleTextView.getLayoutParams();
		subtitleLeft += lp.leftMargin + mTitleMarginStart;
		titleTop += lp.topMargin;
		final int subtitleRight = subtitleLeft + mSubtitleTextView.getMeasuredWidth();
		final int subtitleBottom = titleTop + mSubtitleTextView.getMeasuredHeight();
		mSubtitleTextView.layout(subtitleLeft, titleTop, subtitleRight, subtitleBottom);
		subtitleLeft = subtitleRight + lp.rightMargin + mTitleMarginEnd;
		subtitleLeft = subtitleRight + mTitleMarginEnd;
		titleTop = subtitleBottom + lp.bottomMargin;
		}
		left = Math.max(titleLeft, subtitleLeft);
		@@ -1195,19 +1246,19 @@ public class Toolbar extends ViewGroup {
		addCustomViewsWithGravity(mTempViews, Gravity.LEFT);
		final int leftViewsCount = mTempViews.size();
		for (int i = 0; i < leftViewsCount; i++) {
		left = layoutChildLeft(mTempViews.get(i), left);
		left = layoutChildLeft(mTempViews.get(i), left, collapsingMargins);
		}

		addCustomViewsWithGravity(mTempViews, Gravity.RIGHT);
		final int rightViewsCount = mTempViews.size();
		for (int i = 0; i < rightViewsCount; i++) {
		right = layoutChildRight(mTempViews.get(i), right);
		right = layoutChildRight(mTempViews.get(i), right, collapsingMargins);
		}

		// Centered views try to center with respect to the whole bar, but views pinned
		// to the left or right can push the mass of centered views to one side or the other.
		addCustomViewsWithGravity(mTempViews, Gravity.CENTER_HORIZONTAL);
		final int centerViewsWidth = getViewListMeasuredWidth(mTempViews);
		final int centerViewsWidth = getViewListMeasuredWidth(mTempViews, collapsingMargins);
		final int parentCenter = paddingLeft + (width - paddingLeft - paddingRight) / 2;
		final int halfCenterViewsWidth = centerViewsWidth / 2;
		int centerLeft = parentCenter - halfCenterViewsWidth;
		@@ -1220,25 +1271,35 @@ public class Toolbar extends ViewGroup {

		final int centerViewsCount = mTempViews.size();
		for (int i = 0; i < centerViewsCount; i++) {
		centerLeft = layoutChildLeft(mTempViews.get(i), centerLeft);
		centerLeft = layoutChildLeft(mTempViews.get(i), centerLeft, collapsingMargins);
		}
		mTempViews.clear();
		}

		private int getViewListMeasuredWidth(List<View> views) {
		private int getViewListMeasuredWidth(List<View> views, int[] collapsingMargins) {
		int collapseLeft = collapsingMargins[0];
		int collapseRight = collapsingMargins[1];
		int width = 0;
		final int count = views.size();
		for (int i = 0; i < count; i++) {
		final View v = views.get(i);
		final LayoutParams lp = (LayoutParams) v.getLayoutParams();
		width += lp.leftMargin + v.getMeasuredWidth() + lp.rightMargin;
		final int l = lp.leftMargin - collapseLeft;
		final int r = lp.rightMargin - collapseRight;
		final int leftMargin = Math.max(0, l);
		final int rightMargin = Math.max(0, r);
		collapseLeft = Math.max(0, -l);
		collapseRight = Math.max(0, -r);
		width += leftMargin + v.getMeasuredWidth() + rightMargin;
		}
		return width;
		}

		private int layoutChildLeft(View child, int left) {
		private int layoutChildLeft(View child, int left, int[] collapsingMargins) {
		final LayoutParams lp = (LayoutParams) child.getLayoutParams();
		left += lp.leftMargin;
		final int l = lp.leftMargin - collapsingMargins[0];
		left += Math.max(0, l);
		collapsingMargins[0] = Math.max(0, -l);
		final int top = getChildTop(child);
		final int childWidth = child.getMeasuredWidth();
		child.layout(left, top, left + childWidth, top + child.getMeasuredHeight());
		@@ -1246,9 +1307,11 @@ public class Toolbar extends ViewGroup {
		return left;
		}

		private int layoutChildRight(View child, int right) {
		private int layoutChildRight(View child, int right, int[] collapsingMargins) {
		final LayoutParams lp = (LayoutParams) child.getLayoutParams();
		right -= lp.rightMargin;
		final int r = lp.rightMargin - collapsingMargins[1];
		right -= Math.max(0, r);
		collapsingMargins[1] = Math.max(0, -r);
		final int top = getChildTop(child);
		final int childWidth = child.getMeasuredWidth();
		child.layout(right - childWidth, top, right, top + child.getMeasuredHeight());