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platform_packages_apps_Launcher3
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Fixing up PagedView to work in landscape mode 

-> separated notion of page spacing and paged view padding
-> always position the current page within the rect
   created by pagedview's viewport + padding
-> space pages by a constant amount

Change-Id: I6bb35f72f04543f83b51ef981f8c9ded051623ac
This commit is contained in:
Adam Cohen 2013-10-29 14:45:58 -07:00
parent b88ae4158d
commit 3b185e2513
12 changed files with 96 additions and 78 deletions
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1
res/layout-land/launcher.xml
View File

@ -37,7 +37,6 @@
android:layout_height="match_parent"
android:layout_gravity="center"
launcher:defaultScreen="@integer/config_workspaceDefaultScreen"
launcher:pageSpacing="@dimen/workspace_page_spacing"
launcher:pageIndicator="@id/page_indicator" />
<include layout="@layout/hotseat"

1
res/layout-port/launcher.xml
View File

@ -35,7 +35,6 @@
android:layout_width="match_parent"
android:layout_height="match_parent"
launcher:defaultScreen="@integer/config_workspaceDefaultScreen"
launcher:pageSpacing="@dimen/workspace_page_spacing"
launcher:pageIndicator="@id/page_indicator">
</com.android.launcher3.Workspace>

1
res/layout-sw720dp/launcher.xml
View File

@ -36,7 +36,6 @@
android:layout_width="match_parent"
android:layout_height="match_parent"
launcher:defaultScreen="@integer/config_workspaceDefaultScreen"
launcher:pageSpacing="@dimen/workspace_page_spacing"
launcher:pageIndicator="@id/page_indicator">
</com.android.launcher3.Workspace>

5
res/values-land/dimens.xml
View File

@ -19,11 +19,6 @@
<dimen name="toolbar_button_vertical_padding">8dip</dimen>
<dimen name="toolbar_button_horizontal_padding">0dip</dimen>
<!-- Workspace -->
<!-- We really want the page spacing to be the max of either the button bar
height or the qsb bar height -->
<dimen name="workspace_page_spacing">-1dp</dimen>
<!-- AppsCustomize -->
<dimen name="apps_customize_tab_bar_height">42dp</dimen>
<integer name="apps_customize_widget_cell_count_x">3</integer>

3
res/values-port/dimens.xml
View File

@ -15,9 +15,6 @@
-->
<resources>
<!-- Workspace -->
<dimen name="workspace_page_spacing">-1dp</dimen>
<!-- AppsCustomize -->
<integer name="apps_customize_cling_focused_x">1</integer>
<integer name="apps_customize_cling_focused_y">1</integer>

3
res/values-sw720dp-land/dimens.xml
View File

@ -21,9 +21,6 @@
<integer name="apps_customize_cling_focused_x">4</integer>
<integer name="apps_customize_cling_focused_y">2</integer>
<!-- Workspace -->
<dimen name="workspace_page_spacing">50dp</dimen>
<!-- the area at the edge of the screen that makes the workspace go left
or right while you're dragging. -->
<dimen name="scroll_zone">100dip</dimen>

1
res/values-sw720dp-port/dimens.xml
View File

@ -19,7 +19,6 @@
<!-- the area at the edge of the screen that makes the workspace go left
or right while you're dragging. -->
<dimen name="scroll_zone">40dp</dimen>
<dimen name="workspace_page_spacing">24dp</dimen>
<integer name="apps_customize_cling_focused_x">2</integer>
<integer name="apps_customize_cling_focused_y">2</integer>

3
res/values/attrs.xml
View File

@ -103,8 +103,7 @@
<attr name="pageLayoutPaddingBottom" format="dimension" />
<attr name="pageLayoutPaddingLeft" format="dimension" />
<attr name="pageLayoutPaddingRight" format="dimension" />
<!-- The space between adjacent pages of the PagedView. -->
<attr name="pageSpacing" format="dimension" />
<!-- The page indicator for this workspace -->
<attr name="pageIndicator" format="reference" />
</declare-styleable>

2
res/values/dimens.xml
View File

@ -21,6 +21,7 @@
<dimen name="dynamic_grid_search_bar_height">48dp</dimen>
<dimen name="dynamic_grid_page_indicator_height">24dp</dimen>
<dimen name="dynamic_grid_icon_drawable_padding">4dp</dimen>
<dimen name="dynamic_grid_workspace_page_spacing">8dp</dimen>
<!-- Wallpaper picker -->
<dimen name="wallpaperThumbnailWidth">106.5dp</dimen>
@ -41,7 +42,6 @@
<!-- Workspace -->
<dimen name="workspace_max_gap">16dp</dimen>
<dimen name="workspace_overscroll_drawable_padding">0dp</dimen>
<dimen name="workspace_spring_loaded_page_spacing">15dp</dimen>
<dimen name="overview_panel_bottom_padding">50dp</dimen>
<dimen name="overview_panel_buttonSpacing">60dp</dimen>
<dimen name="overview_mode_page_offset">130dp</dimen>

48
src/com/android/launcher3/DynamicGrid.java
View File

@ -84,6 +84,7 @@ class DeviceProfile {
int heightPx;
int availableWidthPx;
int availableHeightPx;
int defaultPageSpacingPx;
int iconSizePx;
int iconTextSizePx;
@ -132,21 +133,24 @@ class DeviceProfile {
float minWidth, float minHeight,
int wPx, int hPx,
int awPx, int ahPx,
Resources resources) {
DisplayMetrics dm = resources.getDisplayMetrics();
Resources res) {
DisplayMetrics dm = res.getDisplayMetrics();
ArrayList<DeviceProfileQuery> points =
new ArrayList<DeviceProfileQuery>();
transposeLayoutWithOrientation =
resources.getBoolean(R.bool.hotseat_transpose_layout_with_orientation);
res.getBoolean(R.bool.hotseat_transpose_layout_with_orientation);
minWidthDps = minWidth;
minHeightDps = minHeight;
ComponentName cn = new ComponentName(context.getPackageName(),
this.getClass().getName());
defaultWidgetPadding = AppWidgetHostView.getDefaultPaddingForWidget(context, cn, null);
edgeMarginPx = resources.getDimensionPixelSize(R.dimen.dynamic_grid_edge_margin);
edgeMarginPx = res.getDimensionPixelSize(R.dimen.dynamic_grid_edge_margin);
desiredWorkspaceLeftRightMarginPx = 2 * edgeMarginPx;
pageIndicatorHeightPx = resources.getDimensionPixelSize(R.dimen.dynamic_grid_page_indicator_height);
pageIndicatorHeightPx =
res.getDimensionPixelSize(R.dimen.dynamic_grid_page_indicator_height);
defaultPageSpacingPx =
res.getDimensionPixelSize(R.dimen.dynamic_grid_workspace_page_spacing);
// Interpolate the rows
for (DeviceProfile p : profiles) {
@ -180,7 +184,8 @@ class DeviceProfile {
points.add(new DeviceProfileQuery(p.minWidthDps, p.minHeightDps, p.iconTextSize));
}
iconTextSize = invDistWeightedInterpolate(minWidth, minHeight, points);
iconDrawablePaddingOriginalPx = resources.getDimensionPixelSize(R.dimen.dynamic_grid_icon_drawable_padding);
iconDrawablePaddingOriginalPx =
res.getDimensionPixelSize(R.dimen.dynamic_grid_icon_drawable_padding);
// Interpolate the hotseat icon size
points.clear();
@ -191,7 +196,7 @@ class DeviceProfile {
hotseatIconSize = invDistWeightedInterpolate(minWidth, minHeight, points);
// Calculate the remaining vars
updateFromConfiguration(context, resources, wPx, hPx, awPx, ahPx);
updateFromConfiguration(context, res, wPx, hPx, awPx, ahPx);
updateAvailableDimensions(context);
}
@ -382,6 +387,7 @@ class DeviceProfile {
Rect getWorkspacePadding() {
return getWorkspacePadding(isLandscape ? CellLayout.LANDSCAPE : CellLayout.PORTRAIT);
}
Rect getWorkspacePadding(int orientation) {
Rect padding = new Rect();
if (orientation == CellLayout.LANDSCAPE &&
@ -415,6 +421,19 @@ class DeviceProfile {
return padding;
}
int getWorkspacePageSpacing(int orientation) {
if (orientation == CellLayout.LANDSCAPE &&
transposeLayoutWithOrientation) {
// In landscape mode the page spacing is set to the default.
return defaultPageSpacingPx;
} else {
// In portrait, we want the pages spaced such that there is no
// overhang of the previous / next page into the current page viewport.
// We assume symmetrical padding in portrait mode.
return getWorkspacePadding().left;
}
}
// The rect returned will be extended to below the system ui that covers the workspace
Rect getHotseatRect() {
if (isVerticalBarLayout()) {
@ -447,6 +466,10 @@ class DeviceProfile {
return isLandscape && transposeLayoutWithOrientation;
}
boolean shouldFadeAdjacentWorkspaceScreens() {
return isVerticalBarLayout() || isLargeTablet();
}
public void layout(Launcher launcher) {
FrameLayout.LayoutParams lp;
Resources res = launcher.getResources();
@ -497,15 +520,14 @@ class DeviceProfile {
}
// Layout the workspace
View workspace = launcher.findViewById(R.id.workspace);
PagedView workspace = (PagedView) launcher.findViewById(R.id.workspace);
lp = (FrameLayout.LayoutParams) workspace.getLayoutParams();
lp.gravity = Gravity.CENTER;
Rect padding = getWorkspacePadding(isLandscape
? CellLayout.LANDSCAPE
: CellLayout.PORTRAIT);
workspace.setPadding(padding.left, padding.top,
padding.right, padding.bottom);
int orientation = isLandscape ? CellLayout.LANDSCAPE : CellLayout.PORTRAIT;
Rect padding = getWorkspacePadding(orientation);
workspace.setLayoutParams(lp);
workspace.setPadding(padding.left, padding.top, padding.right, padding.bottom);
workspace.setPageSpacing(getWorkspacePageSpacing(orientation));
// Layout the hotseat
View hotseat = launcher.findViewById(R.id.hotseat);

86
src/com/android/launcher3/PagedView.java
View File

@ -124,6 +124,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
protected int mMaxScrollX;
protected Scroller mScroller;
private VelocityTracker mVelocityTracker;
private int mPageSpacing = 0;
private float mParentDownMotionX;
private float mParentDownMotionY;
@ -785,13 +786,13 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
// NOTE: We multiply by 1.5f to account for the fact that depending on the offset of the
// viewport, we can be at most one and a half screens offset once we scale down
DisplayMetrics dm = getResources().getDisplayMetrics();
int maxSize = Math.max(dm.widthPixels, dm.heightPixels + mInsets.top + mInsets.bottom);
int maxSize = Math.max(dm.widthPixels + mInsets.left + mInsets.right,
dm.heightPixels + mInsets.top + mInsets.bottom);
int parentWidthSize, parentHeightSize;
int parentWidthSize = (int) (1.5f * maxSize);
int parentHeightSize = maxSize;
int scaledWidthSize, scaledHeightSize;
if (mUseMinScale) {
parentWidthSize = (int) (1.5f * maxSize);
parentHeightSize = maxSize;
scaledWidthSize = (int) (parentWidthSize / mMinScale);
scaledHeightSize = (int) (parentHeightSize / mMinScale);
} else {
@ -851,21 +852,17 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
childHeightMode = MeasureSpec.EXACTLY;
}
childWidth = widthSize - horizontalPadding;
childHeight = heightSize - verticalPadding - mInsets.top - mInsets.bottom;
childWidth = getViewportWidth() - horizontalPadding
- mInsets.left - mInsets.right;
childHeight = getViewportHeight() - verticalPadding
- mInsets.top - mInsets.bottom;
mNormalChildHeight = childHeight;
} else {
childWidthMode = MeasureSpec.EXACTLY;
childHeightMode = MeasureSpec.EXACTLY;
if (mUseMinScale) {
childWidth = getViewportWidth();
childWidth = getViewportWidth() - mInsets.left - mInsets.right;
childHeight = getViewportHeight();
} else {
childWidth = widthSize - getPaddingLeft() - getPaddingRight();
childHeight = heightSize - getPaddingTop() - getPaddingBottom();
}
}
final int childWidthMeasureSpec =
@ -887,8 +884,6 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
if (DEBUG) Log.d(TAG, "PagedView.onLayout()");
final int childCount = getChildCount();
int screenWidth = getViewportWidth();
int offsetX = getViewportOffsetX();
int offsetY = getViewportOffsetY();
@ -903,7 +898,9 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
int verticalPadding = getPaddingTop() + getPaddingBottom();
int childLeft = offsetX + (screenWidth - getChildWidth(startIndex)) / 2;
LayoutParams lp = (LayoutParams) getChildAt(startIndex).getLayoutParams();
int childLeft = offsetX + (lp.isFullScreenPage ? 0 : getPaddingLeft());
if (mPageScrolls == null || getChildCount() != mChildCountOnLastLayout) {
mPageScrolls = new int[getChildCount()];
}
@ -911,7 +908,7 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
for (int i = startIndex; i != endIndex; i += delta) {
final View child = getPageAt(i);
if (child.getVisibility() != View.GONE) {
LayoutParams lp = (LayoutParams) child.getLayoutParams();
lp = (LayoutParams) child.getLayoutParams();
int childTop;
if (lp.isFullScreenPage) {
childTop = offsetY;
@ -929,16 +926,9 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
child.layout(childLeft, childTop,
childLeft + child.getMeasuredWidth(), childTop + childHeight);
// We assume the left and right padding are equal, and hence center the pages
// horizontally
int scrollOffset = (getViewportWidth() - childWidth) / 2;
mPageScrolls[i] = childLeft - scrollOffset - offsetX;
if (i != endIndex - delta) {
childLeft += childWidth + scrollOffset;
int nextScrollOffset = (getViewportWidth() - getChildWidth(i + delta)) / 2;
childLeft += nextScrollOffset;
}
int scrollOffsetLeft = lp.isFullScreenPage ? 0 : getPaddingLeft();
mPageScrolls[i] = childLeft - scrollOffsetLeft - offsetX;
childLeft += childWidth + mPageSpacing;
}
}
@ -972,6 +962,11 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
}
}
public void setPageSpacing(int pageSpacing) {
mPageSpacing = pageSpacing;
requestLayout();
}
protected void screenScrolled(int screenCenter) {
boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX;
@ -1278,24 +1273,22 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
* Return true if a tap at (x, y) should trigger a flip to the previous page.
*/
protected boolean hitsPreviousPage(float x, float y) {
int offset = (getViewportWidth() - getChildWidth(mCurrentPage)) / 2;
if (isLayoutRtl()) {
return (x > (getViewportOffsetX() + getViewportWidth() -
offset));
getPaddingRight() - mPageSpacing));
}
return (x < getViewportOffsetX() + offset);
return (x < getViewportOffsetX() + getPaddingLeft() + mPageSpacing);
}
/**
* Return true if a tap at (x, y) should trigger a flip to the next page.
*/
protected boolean hitsNextPage(float x, float y) {
int offset = (getViewportWidth() - getChildWidth(mCurrentPage)) / 2;
if (isLayoutRtl()) {
return (x < getViewportOffsetX() + offset);
return (x < getViewportOffsetX() + getPaddingLeft() + mPageSpacing);
}
return (x > (getViewportOffsetX() + getViewportWidth() -
offset));
getPaddingRight() - mPageSpacing));
}
/** Returns whether x and y originated within the buffered viewport */
@ -1486,9 +1479,21 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
protected float getScrollProgress(int screenCenter, View v, int page) {
final int halfScreenSize = getViewportWidth() / 2;
int offset = (getViewportWidth() - getChildWidth(page)) / 2;
int totalDistance = v.getMeasuredWidth() + offset;
int delta = screenCenter - (getScrollForPage(page) + halfScreenSize);
int count = getChildCount();
final int totalDistance;
int adjacentPage = page + 1;
if ((delta < 0 && !isLayoutRtl()) || (delta > 0 && isLayoutRtl())) {
adjacentPage = page - 1;
}
if (adjacentPage < 0 || adjacentPage > count - 1) {
totalDistance = v.getMeasuredWidth() + mPageSpacing;
} else {
totalDistance = Math.abs(getScrollForPage(adjacentPage) - getScrollForPage(page));
}
float scrollProgress = delta / (totalDistance * 1.0f);
scrollProgress = Math.min(scrollProgress, getMaxScrollProgress());
@ -1511,7 +1516,13 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
return 0;
} else {
View child = getChildAt(index);
int scrollOffset = (getViewportWidth() - child.getMeasuredWidth()) / 2;
int scrollOffset = 0;
LayoutParams lp = (LayoutParams) child.getLayoutParams();
if (!lp.isFullScreenPage) {
scrollOffset = isLayoutRtl() ? getPaddingRight() : getPaddingLeft();
}
int baselineX = mPageScrolls[index] + scrollOffset + getViewportOffsetX();
return (int) (child.getX() - baselineX);
}
@ -2575,10 +2586,9 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
int newX = 0;
if (slideFromLeft) {
if (i == 0) {
int pageSpace = (getViewportWidth() - getChildWidth(i)) / 2;
// Simulate the page being offscreen with the page spacing
oldX = getViewportOffsetX() + getChildOffset(i) - getChildWidth(i)
- pageSpace;
- mPageSpacing;
} else {
oldX = getViewportOffsetX() + getChildOffset(i - 1);
}

18
src/com/android/launcher3/Workspace.java
View File

@ -310,7 +310,8 @@ public class Workspace extends SmoothPagedView
mLauncher = (Launcher) context;
final Resources res = getResources();
mWorkspaceFadeInAdjacentScreens = res.getBoolean(R.bool.config_workspaceFadeAdjacentScreens);
mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid().
getDeviceProfile().shouldFadeAdjacentWorkspaceScreens();
mFadeInAdjacentScreens = false;
mWallpaperManager = WallpaperManager.getInstance(context);
@ -1488,12 +1489,6 @@ public class Workspace extends SmoothPagedView
float scrollProgress = getScrollProgress(screenCenter, child, i);
float alpha = 1 - Math.abs(scrollProgress);
child.getShortcutsAndWidgets().setAlpha(alpha);
if (!mIsDragOccuring) {
child.setBackgroundAlphaMultiplier(
backgroundAlphaInterpolator(Math.abs(scrollProgress)));
} else {
child.setBackgroundAlphaMultiplier(1f);
}
}
}
}
@ -2108,7 +2103,14 @@ public class Workspace extends SmoothPagedView
final CellLayout cl = (CellLayout) getChildAt(i);
boolean isCurrentPage = (i == getNextPage());
float initialAlpha = cl.getShortcutsAndWidgets().getAlpha();
float finalAlpha = stateIsSmall ? 0f : 1f;
float finalAlpha;
if (stateIsSmall) {
finalAlpha = 0f;
} else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) {
finalAlpha = i == getNextPage() ? 1f : 0f;
} else {
finalAlpha = 1f;
}
// If we are animating to/from the small state, then hide the side pages and fade the
// current page in