DeviceProfile.java revision a295048a69d35b5adc3f021c3d40c32700cc9629
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher3; 18 19import android.appwidget.AppWidgetHostView; 20import android.content.ComponentName; 21import android.content.Context; 22import android.content.res.Resources; 23import android.graphics.Paint; 24import android.graphics.Paint.FontMetrics; 25import android.graphics.Point; 26import android.graphics.Rect; 27import android.util.DisplayMetrics; 28import android.view.Gravity; 29import android.view.View; 30import android.view.ViewGroup; 31import android.view.ViewGroup.LayoutParams; 32import android.view.ViewGroup.MarginLayoutParams; 33import android.widget.FrameLayout; 34import android.widget.LinearLayout; 35 36public class DeviceProfile { 37 38 public final InvariantDeviceProfile inv; 39 40 // Device properties 41 public final boolean isTablet; 42 public final boolean isLargeTablet; 43 public final boolean isPhone; 44 public final boolean transposeLayoutWithOrientation; 45 46 // Device properties in current orientation 47 public final boolean isLandscape; 48 public final int widthPx; 49 public final int heightPx; 50 public final int availableWidthPx; 51 public final int availableHeightPx; 52 /** 53 * The maximum amount of left/right workspace padding as a percentage of the screen width. 54 * To be clear, this means that up to 7% of the screen width can be used as left padding, and 55 * 7% of the screen width can be used as right padding. 56 */ 57 private static final float MAX_HORIZONTAL_PADDING_PERCENT = 0.14f; 58 59 // Overview mode 60 private final int overviewModeMinIconZoneHeightPx; 61 private final int overviewModeMaxIconZoneHeightPx; 62 private final int overviewModeBarItemWidthPx; 63 private final int overviewModeBarSpacerWidthPx; 64 private final float overviewModeIconZoneRatio; 65 66 // Workspace 67 private int desiredWorkspaceLeftRightMarginPx; 68 public final int edgeMarginPx; 69 public final Rect defaultWidgetPadding; 70 private final int pageIndicatorHeightPx; 71 private final int defaultPageSpacingPx; 72 private float dragViewScale; 73 74 // Workspace icons 75 public int iconSizePx; 76 public int iconTextSizePx; 77 public int iconDrawablePaddingPx; 78 public int iconDrawablePaddingOriginalPx; 79 80 public int cellWidthPx; 81 public int cellHeightPx; 82 83 // Folder 84 public int folderBackgroundOffset; 85 public int folderIconSizePx; 86 public int folderCellWidthPx; 87 public int folderCellHeightPx; 88 89 // Hotseat 90 public int hotseatCellWidthPx; 91 public int hotseatCellHeightPx; 92 public int hotseatIconSizePx; 93 private int hotseatBarHeightNormalPx, hotseatBarHeightShortPx; 94 private int hotseatBarHeightPx; // One of the above. 95 96 // All apps 97 public int allAppsNumCols; 98 public int allAppsNumPredictiveCols; 99 public int allAppsButtonVisualSize; 100 public final int allAppsIconSizePx; 101 public final int allAppsIconTextSizePx; 102 103 // QSB 104 private int searchBarSpaceWidthPx; 105 private int searchBarSpaceHeightNormalPx, searchBarSpaceHeightTallPx; 106 private int searchBarSpaceHeightPx; // One of the above. 107 private int searchBarHeight = LauncherCallbacks.SEARCH_BAR_HEIGHT_NORMAL; 108 109 public DeviceProfile(Context context, InvariantDeviceProfile inv, 110 Point minSize, Point maxSize, 111 int width, int height, boolean isLandscape) { 112 113 this.inv = inv; 114 this.isLandscape = isLandscape; 115 116 Resources res = context.getResources(); 117 DisplayMetrics dm = res.getDisplayMetrics(); 118 119 // Constants from resources 120 isTablet = res.getBoolean(R.bool.is_tablet); 121 isLargeTablet = res.getBoolean(R.bool.is_large_tablet); 122 isPhone = !isTablet && !isLargeTablet; 123 124 // Some more constants 125 transposeLayoutWithOrientation = 126 res.getBoolean(R.bool.hotseat_transpose_layout_with_orientation); 127 128 ComponentName cn = new ComponentName(context.getPackageName(), 129 this.getClass().getName()); 130 defaultWidgetPadding = AppWidgetHostView.getDefaultPaddingForWidget(context, cn, null); 131 edgeMarginPx = res.getDimensionPixelSize(R.dimen.dynamic_grid_edge_margin); 132 desiredWorkspaceLeftRightMarginPx = 2 * edgeMarginPx; 133 pageIndicatorHeightPx = 134 res.getDimensionPixelSize(R.dimen.dynamic_grid_page_indicator_height); 135 defaultPageSpacingPx = 136 res.getDimensionPixelSize(R.dimen.dynamic_grid_workspace_page_spacing); 137 overviewModeMinIconZoneHeightPx = 138 res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_min_icon_zone_height); 139 overviewModeMaxIconZoneHeightPx = 140 res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_max_icon_zone_height); 141 overviewModeBarItemWidthPx = 142 res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_bar_item_width); 143 overviewModeBarSpacerWidthPx = 144 res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_bar_spacer_width); 145 overviewModeIconZoneRatio = 146 res.getInteger(R.integer.config_dynamic_grid_overview_icon_zone_percentage) / 100f; 147 iconDrawablePaddingOriginalPx = 148 res.getDimensionPixelSize(R.dimen.dynamic_grid_icon_drawable_padding); 149 150 // AllApps uses the original non-scaled icon text size 151 allAppsIconTextSizePx = Utilities.pxFromDp(inv.iconTextSize, dm); 152 153 // AllApps uses the original non-scaled icon size 154 allAppsIconSizePx = Utilities.pxFromDp(inv.iconSize, dm); 155 156 // Determine sizes. 157 widthPx = width; 158 heightPx = height; 159 if (isLandscape) { 160 availableWidthPx = maxSize.x; 161 availableHeightPx = minSize.y; 162 } else { 163 availableWidthPx = minSize.x; 164 availableHeightPx = maxSize.y; 165 } 166 167 // Calculate the remaining vars 168 updateAvailableDimensions(dm, res); 169 computeAllAppsButtonSize(context); 170 } 171 172 /** 173 * Determine the exact visual footprint of the all apps button, taking into account scaling 174 * and internal padding of the drawable. 175 */ 176 private void computeAllAppsButtonSize(Context context) { 177 Resources res = context.getResources(); 178 float padding = res.getInteger(R.integer.config_allAppsButtonPaddingPercent) / 100f; 179 allAppsButtonVisualSize = (int) (hotseatIconSizePx * (1 - padding)) - context.getResources() 180 .getDimensionPixelSize(R.dimen.all_apps_button_scale_down); 181 } 182 183 private void updateAvailableDimensions(DisplayMetrics dm, Resources res) { 184 // Check to see if the icons fit in the new available height. If not, then we need to 185 // shrink the icon size. 186 float scale = 1f; 187 int drawablePadding = iconDrawablePaddingOriginalPx; 188 updateIconSize(1f, drawablePadding, res, dm); 189 float usedHeight = (cellHeightPx * inv.numRows); 190 191 // We only care about the top and bottom workspace padding, which is not affected by RTL. 192 Rect workspacePadding = getWorkspacePadding(false /* isLayoutRtl */); 193 int maxHeight = (availableHeightPx - workspacePadding.top - workspacePadding.bottom); 194 if (usedHeight > maxHeight) { 195 scale = maxHeight / usedHeight; 196 drawablePadding = 0; 197 } 198 updateIconSize(scale, drawablePadding, res, dm); 199 } 200 201 private void updateIconSize(float scale, int drawablePadding, Resources res, 202 DisplayMetrics dm) { 203 iconSizePx = (int) (Utilities.pxFromDp(inv.iconSize, dm) * scale); 204 iconTextSizePx = (int) (Utilities.pxFromSp(inv.iconTextSize, dm) * scale); 205 iconDrawablePaddingPx = drawablePadding; 206 hotseatIconSizePx = (int) (Utilities.pxFromDp(inv.hotseatIconSize, dm) * scale); 207 208 // Search Bar 209 searchBarSpaceWidthPx = Math.min(widthPx, 210 res.getDimensionPixelSize(R.dimen.dynamic_grid_search_bar_max_width)); 211 searchBarSpaceHeightNormalPx = getSearchBarTopOffset() 212 + res.getDimensionPixelSize(R.dimen.dynamic_grid_search_bar_height); 213 searchBarSpaceHeightTallPx = getSearchBarTopOffset() 214 + res.getDimensionPixelSize(R.dimen.dynamic_grid_search_bar_height_tall); 215 216 // Calculate the actual text height 217 Paint textPaint = new Paint(); 218 textPaint.setTextSize(iconTextSizePx); 219 FontMetrics fm = textPaint.getFontMetrics(); 220 cellWidthPx = iconSizePx; 221 cellHeightPx = iconSizePx + iconDrawablePaddingPx + (int) Math.ceil(fm.bottom - fm.top); 222 final float scaleDps = res.getDimensionPixelSize(R.dimen.dragViewScale); 223 dragViewScale = (iconSizePx + scaleDps) / iconSizePx; 224 225 // Hotseat 226 hotseatBarHeightNormalPx = iconSizePx + 4 * edgeMarginPx; 227 hotseatBarHeightShortPx = iconSizePx + 2 * edgeMarginPx; 228 hotseatCellWidthPx = iconSizePx; 229 hotseatCellHeightPx = iconSizePx; 230 231 // Folder 232 folderCellWidthPx = Math.min(cellWidthPx + 6 * edgeMarginPx, 233 (availableWidthPx - 4 * edgeMarginPx) / inv.numFolderColumns); 234 folderCellHeightPx = cellHeightPx + edgeMarginPx; 235 folderBackgroundOffset = -edgeMarginPx; 236 folderIconSizePx = iconSizePx + 2 * -folderBackgroundOffset; 237 } 238 239 /** 240 * @param recyclerViewWidth the available width of the AllAppsRecyclerView 241 */ 242 public void updateAppsViewNumCols(Resources res, int recyclerViewWidth) { 243 int appsViewLeftMarginPx = 244 res.getDimensionPixelSize(R.dimen.all_apps_grid_view_start_margin); 245 int allAppsCellWidthGap = 246 res.getDimensionPixelSize(R.dimen.all_apps_icon_width_gap); 247 int availableAppsWidthPx = (recyclerViewWidth > 0) ? recyclerViewWidth : availableWidthPx; 248 int numAppsCols = (availableAppsWidthPx - appsViewLeftMarginPx) / 249 (allAppsIconSizePx + allAppsCellWidthGap); 250 int numPredictiveAppCols = Math.max(inv.minAllAppsPredictionColumns, numAppsCols); 251 allAppsNumCols = numAppsCols; 252 allAppsNumPredictiveCols = numPredictiveAppCols; 253 } 254 255 /** Returns the search bar top offset */ 256 private int getSearchBarTopOffset() { 257 if (isTablet && !isVerticalBarLayout()) { 258 return 4 * edgeMarginPx; 259 } else { 260 return 2 * edgeMarginPx; 261 } 262 } 263 264 /** Returns the search bar bounds in the current orientation */ 265 public Rect getSearchBarBounds(boolean isLayoutRtl) { 266 Rect bounds = new Rect(); 267 if (isVerticalBarLayout()) { 268 if (isLayoutRtl) { 269 bounds.set(availableWidthPx - searchBarSpaceHeightNormalPx, edgeMarginPx, 270 availableWidthPx, availableHeightPx - edgeMarginPx); 271 } else { 272 bounds.set(0, edgeMarginPx, searchBarSpaceHeightNormalPx, 273 availableHeightPx - edgeMarginPx); 274 } 275 } else { 276 if (isTablet) { 277 // Pad the left and right of the workspace to ensure consistent spacing 278 // between all icons 279 int width = getCurrentWidth(); 280 // XXX: If the icon size changes across orientations, we will have to take 281 // that into account here too. 282 int gap = (int) ((width - 2 * edgeMarginPx - 283 (inv.numColumns * cellWidthPx)) / (2 * (inv.numColumns + 1))); 284 bounds.set(edgeMarginPx + gap, getSearchBarTopOffset(), 285 availableWidthPx - (edgeMarginPx + gap), 286 searchBarSpaceHeightPx); 287 } else { 288 bounds.set(desiredWorkspaceLeftRightMarginPx - defaultWidgetPadding.left, 289 getSearchBarTopOffset(), 290 availableWidthPx - (desiredWorkspaceLeftRightMarginPx - 291 defaultWidgetPadding.right), searchBarSpaceHeightPx); 292 } 293 } 294 return bounds; 295 } 296 297 /** Returns the workspace padding in the specified orientation */ 298 Rect getWorkspacePadding(boolean isLayoutRtl) { 299 Rect searchBarBounds = getSearchBarBounds(isLayoutRtl); 300 Rect padding = new Rect(); 301 if (isVerticalBarLayout()) { 302 // Pad the left and right of the workspace with search/hotseat bar sizes 303 if (isLayoutRtl) { 304 padding.set(hotseatBarHeightNormalPx, edgeMarginPx, 305 searchBarBounds.width(), edgeMarginPx); 306 } else { 307 padding.set(searchBarBounds.width(), edgeMarginPx, 308 hotseatBarHeightNormalPx, edgeMarginPx); 309 } 310 } else { 311 if (isTablet) { 312 // Pad the left and right of the workspace to ensure consistent spacing 313 // between all icons 314 float gapScale = 1f + (dragViewScale - 1f) / 2f; 315 int width = getCurrentWidth(); 316 int height = getCurrentHeight(); 317 int paddingTop = searchBarBounds.bottom; 318 int paddingBottom = hotseatBarHeightPx + pageIndicatorHeightPx; 319 // The amount of screen space available for left/right padding. 320 int availablePaddingX = Math.max(0, width - (int) ((inv.numColumns * cellWidthPx) + 321 ((inv.numColumns - 1) * gapScale * cellWidthPx))); 322 availablePaddingX = (int) Math.min(availablePaddingX, 323 width * MAX_HORIZONTAL_PADDING_PERCENT); 324 int availablePaddingY = Math.max(0, height - paddingTop - paddingBottom 325 - (int) (2 * inv.numRows * cellHeightPx)); 326 padding.set(availablePaddingX / 2, paddingTop + availablePaddingY / 2, 327 availablePaddingX / 2, paddingBottom + availablePaddingY / 2); 328 } else { 329 // Pad the top and bottom of the workspace with search/hotseat bar sizes 330 padding.set(desiredWorkspaceLeftRightMarginPx - defaultWidgetPadding.left, 331 searchBarBounds.bottom, 332 desiredWorkspaceLeftRightMarginPx - defaultWidgetPadding.right, 333 hotseatBarHeightPx + pageIndicatorHeightPx); 334 } 335 } 336 return padding; 337 } 338 339 private int getWorkspacePageSpacing(boolean isLayoutRtl) { 340 if (isVerticalBarLayout() || isLargeTablet) { 341 // In landscape mode the page spacing is set to the default. 342 return defaultPageSpacingPx; 343 } else { 344 // In portrait, we want the pages spaced such that there is no 345 // overhang of the previous / next page into the current page viewport. 346 // We assume symmetrical padding in portrait mode. 347 return Math.max(defaultPageSpacingPx, 2 * getWorkspacePadding(isLayoutRtl).left); 348 } 349 } 350 351 int getOverviewModeButtonBarHeight() { 352 int zoneHeight = (int) (overviewModeIconZoneRatio * availableHeightPx); 353 zoneHeight = Math.min(overviewModeMaxIconZoneHeightPx, 354 Math.max(overviewModeMinIconZoneHeightPx, zoneHeight)); 355 return zoneHeight; 356 } 357 358 // The rect returned will be extended to below the system ui that covers the workspace 359 Rect getHotseatRect() { 360 if (isVerticalBarLayout()) { 361 return new Rect(availableWidthPx - hotseatBarHeightNormalPx, 0, 362 Integer.MAX_VALUE, availableHeightPx); 363 } else { 364 return new Rect(0, availableHeightPx - hotseatBarHeightPx, 365 availableWidthPx, Integer.MAX_VALUE); 366 } 367 } 368 369 public static int calculateCellWidth(int width, int countX) { 370 return width / countX; 371 } 372 public static int calculateCellHeight(int height, int countY) { 373 return height / countY; 374 } 375 376 /** 377 * When {@code true}, the device is in landscape mode and the hotseat is on the right column. 378 * When {@code false}, either device is in portrait mode or the device is in landscape mode and 379 * the hotseat is on the bottom row. 380 */ 381 boolean isVerticalBarLayout() { 382 return isLandscape && transposeLayoutWithOrientation; 383 } 384 385 boolean shouldFadeAdjacentWorkspaceScreens() { 386 return isVerticalBarLayout() || isLargeTablet; 387 } 388 389 private int getVisibleChildCount(ViewGroup parent) { 390 int visibleChildren = 0; 391 for (int i = 0; i < parent.getChildCount(); i++) { 392 if (parent.getChildAt(i).getVisibility() != View.GONE) { 393 visibleChildren++; 394 } 395 } 396 return visibleChildren; 397 } 398 399 public void layout(Launcher launcher) { 400 FrameLayout.LayoutParams lp; 401 boolean hasVerticalBarLayout = isVerticalBarLayout(); 402 final boolean isLayoutRtl = Utilities.isRtl(launcher.getResources()); 403 404 // Layout the search bar space 405 View searchBar = launcher.getSearchDropTargetBar(); 406 lp = (FrameLayout.LayoutParams) searchBar.getLayoutParams(); 407 searchBarHeight = launcher.getSearchBarHeight(); 408 if (searchBarHeight == LauncherCallbacks.SEARCH_BAR_HEIGHT_TALL) { 409 hotseatBarHeightPx = hotseatBarHeightShortPx; 410 searchBarSpaceHeightPx = searchBarSpaceHeightTallPx; 411 } else { 412 hotseatBarHeightPx = hotseatBarHeightNormalPx; 413 searchBarSpaceHeightPx = searchBarSpaceHeightNormalPx; 414 } 415 if (hasVerticalBarLayout) { 416 // Vertical search bar space -- The search bar is fixed in the layout to be on the left 417 // of the screen regardless of RTL 418 lp.gravity = Gravity.LEFT; 419 lp.width = searchBarSpaceHeightNormalPx; 420 421 LinearLayout targets = (LinearLayout) searchBar.findViewById(R.id.drag_target_bar); 422 targets.setOrientation(LinearLayout.VERTICAL); 423 FrameLayout.LayoutParams targetsLp = (FrameLayout.LayoutParams) targets.getLayoutParams(); 424 targetsLp.gravity = Gravity.TOP; 425 targetsLp.height = LayoutParams.WRAP_CONTENT; 426 427 } else { 428 // Horizontal search bar space 429 lp.gravity = Gravity.TOP; 430 lp.height = searchBarSpaceHeightPx; 431 432 LinearLayout targets = (LinearLayout) searchBar.findViewById(R.id.drag_target_bar); 433 targets.getLayoutParams().width = searchBarSpaceWidthPx; 434 } 435 searchBar.setLayoutParams(lp); 436 437 // Layout the workspace 438 PagedView workspace = (PagedView) launcher.findViewById(R.id.workspace); 439 lp = (FrameLayout.LayoutParams) workspace.getLayoutParams(); 440 lp.gravity = Gravity.CENTER; 441 Rect padding = getWorkspacePadding(isLayoutRtl); 442 workspace.setLayoutParams(lp); 443 workspace.setPadding(padding.left, padding.top, padding.right, padding.bottom); 444 workspace.setPageSpacing(getWorkspacePageSpacing(isLayoutRtl)); 445 446 // Layout the hotseat 447 View hotseat = launcher.findViewById(R.id.hotseat); 448 lp = (FrameLayout.LayoutParams) hotseat.getLayoutParams(); 449 // We want the edges of the hotseat to line up with the edges of the workspace, but the 450 // icons in the hotseat are a different size, and so don't line up perfectly. To account for 451 // this, we pad the left and right of the hotseat with half of the difference of a workspace 452 // cell vs a hotseat cell. 453 float workspaceCellWidth = (float) getCurrentWidth() / inv.numColumns; 454 float hotseatCellWidth = (float) getCurrentWidth() / inv.numHotseatIcons; 455 int hotseatAdjustment = Math.round((workspaceCellWidth - hotseatCellWidth) / 2); 456 if (hasVerticalBarLayout) { 457 // Vertical hotseat -- The hotseat is fixed in the layout to be on the right of the 458 // screen regardless of RTL 459 lp.gravity = Gravity.RIGHT; 460 lp.width = hotseatBarHeightNormalPx; 461 lp.height = LayoutParams.MATCH_PARENT; 462 hotseat.findViewById(R.id.layout).setPadding(0, 2 * edgeMarginPx, 0, 2 * edgeMarginPx); 463 } else if (isTablet) { 464 // Pad the hotseat with the workspace padding calculated above 465 lp.gravity = Gravity.BOTTOM; 466 lp.width = LayoutParams.MATCH_PARENT; 467 lp.height = hotseatBarHeightPx; 468 hotseat.findViewById(R.id.layout).setPadding( 469 hotseatAdjustment + padding.left, 0, 470 hotseatAdjustment + padding.right, 2 * edgeMarginPx); 471 } else { 472 // For phones, layout the hotseat without any bottom margin 473 // to ensure that we have space for the folders 474 lp.gravity = Gravity.BOTTOM; 475 lp.width = LayoutParams.MATCH_PARENT; 476 lp.height = hotseatBarHeightPx; 477 hotseat.findViewById(R.id.layout).setPadding( 478 hotseatAdjustment + padding.left, 0, 479 hotseatAdjustment + padding.right, 0); 480 } 481 hotseat.setLayoutParams(lp); 482 483 // Layout the page indicators 484 View pageIndicator = launcher.findViewById(R.id.page_indicator); 485 if (pageIndicator != null) { 486 if (hasVerticalBarLayout) { 487 // Hide the page indicators when we have vertical search/hotseat 488 pageIndicator.setVisibility(View.GONE); 489 } else { 490 // Put the page indicators above the hotseat 491 lp = (FrameLayout.LayoutParams) pageIndicator.getLayoutParams(); 492 lp.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM; 493 lp.width = LayoutParams.WRAP_CONTENT; 494 lp.height = LayoutParams.WRAP_CONTENT; 495 lp.bottomMargin = hotseatBarHeightPx; 496 pageIndicator.setLayoutParams(lp); 497 } 498 } 499 500 // Layout the Overview Mode 501 ViewGroup overviewMode = launcher.getOverviewPanel(); 502 if (overviewMode != null) { 503 int overviewButtonBarHeight = getOverviewModeButtonBarHeight(); 504 lp = (FrameLayout.LayoutParams) overviewMode.getLayoutParams(); 505 lp.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM; 506 507 int visibleChildCount = getVisibleChildCount(overviewMode); 508 int totalItemWidth = visibleChildCount * overviewModeBarItemWidthPx; 509 int maxWidth = totalItemWidth + (visibleChildCount-1) * overviewModeBarSpacerWidthPx; 510 511 lp.width = Math.min(availableWidthPx, maxWidth); 512 lp.height = overviewButtonBarHeight; 513 overviewMode.setLayoutParams(lp); 514 515 if (lp.width > totalItemWidth && visibleChildCount > 1) { 516 // We have enough space. Lets add some margin too. 517 int margin = (lp.width - totalItemWidth) / (visibleChildCount-1); 518 View lastChild = null; 519 520 // Set margin of all visible children except the last visible child 521 for (int i = 0; i < visibleChildCount; i++) { 522 if (lastChild != null) { 523 MarginLayoutParams clp = (MarginLayoutParams) lastChild.getLayoutParams(); 524 if (isLayoutRtl) { 525 clp.leftMargin = margin; 526 } else { 527 clp.rightMargin = margin; 528 } 529 lastChild.setLayoutParams(clp); 530 lastChild = null; 531 } 532 View thisChild = overviewMode.getChildAt(i); 533 if (thisChild.getVisibility() != View.GONE) { 534 lastChild = thisChild; 535 } 536 } 537 } 538 } 539 } 540 541 private int getCurrentWidth() { 542 return isLandscape 543 ? Math.max(widthPx, heightPx) 544 : Math.min(widthPx, heightPx); 545 } 546 547 private int getCurrentHeight() { 548 return isLandscape 549 ? Math.min(widthPx, heightPx) 550 : Math.max(widthPx, heightPx); 551 } 552} 553