| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.launcher2; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.AnimatorSet; |
| import android.animation.ObjectAnimator; |
| import android.animation.PropertyValuesHolder; |
| import android.appwidget.AppWidgetManager; |
| import android.appwidget.AppWidgetProviderInfo; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.content.res.XmlResourceParser; |
| import android.graphics.Bitmap; |
| import android.graphics.Bitmap.Config; |
| import android.graphics.Canvas; |
| import android.graphics.Rect; |
| import android.graphics.drawable.Drawable; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.util.LruCache; |
| import android.util.Slog; |
| import android.util.TypedValue; |
| import android.util.Xml; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.animation.AccelerateInterpolator; |
| import android.view.animation.DecelerateInterpolator; |
| import android.view.animation.LinearInterpolator; |
| import android.widget.ImageView; |
| import android.widget.TextView; |
| import android.widget.Toast; |
| |
| import com.android.launcher.R; |
| |
| public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements |
| AllAppsView, View.OnClickListener, DragSource { |
| static final String LOG_TAG = "AppsCustomizePagedView"; |
| |
| /** |
| * The different content types that this paged view can show. |
| */ |
| public enum ContentType { |
| Applications, |
| Widgets |
| } |
| |
| // Refs |
| private Launcher mLauncher; |
| private DragController mDragController; |
| private final LayoutInflater mLayoutInflater; |
| private final PackageManager mPackageManager; |
| |
| // Content |
| private ContentType mContentType; |
| private ArrayList<ApplicationInfo> mApps; |
| private List<Object> mWidgets; |
| |
| // Caching |
| private Drawable mDefaultWidgetBackground; |
| private final int sWidgetPreviewCacheSize = 1 * 1024 * 1024; // 1 MiB |
| private LruCache<Object, Bitmap> mWidgetPreviewCache; |
| private IconCache mIconCache; |
| |
| // Dimens |
| private int mContentWidth; |
| private int mMaxWidgetSpan, mMinWidgetSpan; |
| private int mCellWidthGap, mCellHeightGap; |
| private int mWidgetCountX, mWidgetCountY; |
| private final int mWidgetPreviewIconPaddedDimension; |
| private final float sWidgetPreviewIconPaddingPercentage = 0.25f; |
| private PagedViewCellLayout mWidgetSpacingLayout; |
| |
| // Animations |
| private final float ANIMATION_SCALE = 0.5f; |
| private final int TRANSLATE_ANIM_DURATION = 400; |
| private final int DROP_ANIM_DURATION = 200; |
| |
| public AppsCustomizePagedView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| mLayoutInflater = LayoutInflater.from(context); |
| mPackageManager = context.getPackageManager(); |
| mContentType = ContentType.Applications; |
| mApps = new ArrayList<ApplicationInfo>(); |
| mWidgets = new ArrayList<Object>(); |
| mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); |
| mWidgetPreviewCache = new LruCache<Object, Bitmap>(sWidgetPreviewCacheSize) { |
| protected int sizeOf(Object key, Bitmap value) { |
| return value.getByteCount(); |
| } |
| }; |
| |
| // Save the default widget preview background |
| Resources resources = context.getResources(); |
| mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview); |
| |
| TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PagedView, 0, 0); |
| mCellCountX = a.getInt(R.styleable.PagedView_cellCountX, 6); |
| mCellCountY = a.getInt(R.styleable.PagedView_cellCountY, 4); |
| a.recycle(); |
| a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); |
| mCellWidthGap = |
| a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 10); |
| mCellHeightGap = |
| a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 10); |
| mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); |
| mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); |
| a.recycle(); |
| |
| // Create a dummy page that we can use to approximate the cell dimensions of widgets and |
| // the content width (to be used by our parent) |
| mWidgetSpacingLayout = new PagedViewCellLayout(context); |
| setupPage(mWidgetSpacingLayout); |
| mContentWidth = mWidgetSpacingLayout.getContentWidth(); |
| |
| // The max widget span is the length N, such that NxN is the largest bounds that the widget |
| // preview can be before applying the widget scaling |
| mMinWidgetSpan = 1; |
| mMaxWidgetSpan = 3; |
| |
| // The padding on the non-matched dimension for the default widget preview icons |
| // (top + bottom) |
| int iconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); |
| mWidgetPreviewIconPaddedDimension = |
| (int) (iconSize * (1 + (2 * sWidgetPreviewIconPaddingPercentage))); |
| } |
| |
| @Override |
| protected void init() { |
| super.init(); |
| mCenterPagesVertically = false; |
| |
| Context context = getContext(); |
| Resources r = context.getResources(); |
| setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); |
| } |
| |
| /** Removes and returns the ResolveInfo with the specified ComponentName */ |
| private ResolveInfo removeResolveInfoWithComponentName(List<ResolveInfo> list, |
| ComponentName cn) { |
| Iterator<ResolveInfo> iter = list.iterator(); |
| while (iter.hasNext()) { |
| ResolveInfo rinfo = iter.next(); |
| ActivityInfo info = rinfo.activityInfo; |
| ComponentName c = new ComponentName(info.packageName, info.name); |
| if (c.equals(cn)) { |
| iter.remove(); |
| return rinfo; |
| } |
| } |
| return null; |
| } |
| |
| public void onPackagesUpdated() { |
| // Get the list of widgets and shortcuts |
| mWidgets.clear(); |
| mWidgets.addAll(AppWidgetManager.getInstance(mLauncher).getInstalledProviders()); |
| Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); |
| mWidgets.addAll(mPackageManager.queryIntentActivities(shortcutsIntent, 0)); |
| Collections.sort(mWidgets, |
| new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); |
| } |
| |
| /** |
| * Animates the given item onto the center of a home screen, and then scales the item to |
| * look as though it's disappearing onto that screen. |
| */ |
| private void animateItemOntoScreen(View dragView, |
| final CellLayout layout, final ItemInfo info) { |
| // On the phone, we only want to fade the widget preview out |
| float[] position = new float[2]; |
| position[0] = layout.getWidth() / 2; |
| position[1] = layout.getHeight() / 2; |
| |
| mLauncher.getWorkspace().mapPointFromChildToSelf(layout, position); |
| |
| int dragViewWidth = dragView.getMeasuredWidth(); |
| int dragViewHeight = dragView.getMeasuredHeight(); |
| float heightOffset = 0; |
| float widthOffset = 0; |
| |
| if (dragView instanceof ImageView) { |
| Drawable d = ((ImageView) dragView).getDrawable(); |
| int width = d.getIntrinsicWidth(); |
| int height = d.getIntrinsicHeight(); |
| |
| if ((1.0 * width / height) >= (1.0f * dragViewWidth) / dragViewHeight) { |
| float f = (dragViewWidth / (width * 1.0f)); |
| heightOffset = ANIMATION_SCALE * (dragViewHeight - f * height) / 2; |
| } else { |
| float f = (dragViewHeight / (height * 1.0f)); |
| widthOffset = ANIMATION_SCALE * (dragViewWidth - f * width) / 2; |
| } |
| } |
| final float toX = position[0] - dragView.getMeasuredWidth() / 2 + widthOffset; |
| final float toY = position[1] - dragView.getMeasuredHeight() / 2 + heightOffset; |
| |
| final DragLayer dragLayer = (DragLayer) mLauncher.findViewById(R.id.drag_layer); |
| final View dragCopy = dragLayer.createDragView(dragView); |
| dragCopy.setAlpha(1.0f); |
| |
| // Translate the item to the center of the appropriate home screen |
| animateIntoPosition(dragCopy, toX, toY, null); |
| |
| // The drop-onto-screen animation begins a bit later, but ends at the same time. |
| final int startDelay = TRANSLATE_ANIM_DURATION - DROP_ANIM_DURATION; |
| |
| // Scale down the icon and fade out the alpha |
| animateDropOntoScreen(dragCopy, info, DROP_ANIM_DURATION, startDelay); |
| } |
| |
| /** |
| * Animation which scales the view down and animates its alpha, making it appear to disappear |
| * onto a home screen. |
| */ |
| private void animateDropOntoScreen( |
| final View view, final ItemInfo info, int duration, int delay) { |
| final DragLayer dragLayer = (DragLayer) mLauncher.findViewById(R.id.drag_layer); |
| final CellLayout layout = mLauncher.getWorkspace().getCurrentDropLayout(); |
| |
| ObjectAnimator anim = ObjectAnimator.ofPropertyValuesHolder(view, |
| PropertyValuesHolder.ofFloat("alpha", 1.0f, 0.0f), |
| PropertyValuesHolder.ofFloat("scaleX", ANIMATION_SCALE), |
| PropertyValuesHolder.ofFloat("scaleY", ANIMATION_SCALE)); |
| anim.setInterpolator(new LinearInterpolator()); |
| if (delay > 0) { |
| anim.setStartDelay(delay); |
| } |
| anim.setDuration(duration); |
| anim.addListener(new AnimatorListenerAdapter() { |
| public void onAnimationEnd(Animator animation) { |
| dragLayer.removeView(view); |
| mLauncher.addExternalItemToScreen(info, layout); |
| info.dropPos = null; |
| } |
| }); |
| anim.start(); |
| } |
| |
| /** |
| * Animates the x,y position of the view, and optionally execute a Runnable on animation end. |
| */ |
| private void animateIntoPosition( |
| View view, float toX, float toY, final Runnable endRunnable) { |
| ObjectAnimator anim = ObjectAnimator.ofPropertyValuesHolder(view, |
| PropertyValuesHolder.ofFloat("x", toX), |
| PropertyValuesHolder.ofFloat("y", toY)); |
| anim.setInterpolator(new DecelerateInterpolator(2.5f)); |
| anim.setDuration(TRANSLATE_ANIM_DURATION); |
| if (endRunnable != null) { |
| anim.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| endRunnable.run(); |
| } |
| }); |
| } |
| anim.start(); |
| } |
| |
| @Override |
| public void onClick(View v) { |
| if (v instanceof PagedViewIcon) { |
| // Animate some feedback to the click |
| final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); |
| animateClickFeedback(v, new Runnable() { |
| @Override |
| public void run() { |
| mLauncher.startActivitySafely(appInfo.intent, appInfo); |
| } |
| }); |
| } else if (v instanceof PagedViewWidget) { |
| // Add the widget to the current workspace screen |
| Workspace w = mLauncher.getWorkspace(); |
| int currentWorkspaceScreen = mLauncher.getCurrentWorkspaceScreen(); |
| final CellLayout cl = (CellLayout) w.getChildAt(currentWorkspaceScreen); |
| final View dragView = v.findViewById(R.id.widget_preview); |
| final ItemInfo itemInfo = (ItemInfo) v.getTag(); |
| animateClickFeedback(v, new Runnable() { |
| @Override |
| public void run() { |
| cl.calculateSpans(itemInfo); |
| if (cl.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY)) { |
| if (LauncherApplication.isScreenLarge()) { |
| animateItemOntoScreen(dragView, cl, itemInfo); |
| } else { |
| mLauncher.addExternalItemToScreen(itemInfo, cl); |
| itemInfo.dropPos = null; |
| } |
| |
| // Hide the pane so we can see the workspace we dropped on |
| mLauncher.showWorkspace(true); |
| } else { |
| mLauncher.showOutOfSpaceMessage(); |
| } |
| } |
| }); |
| } |
| } |
| |
| /* |
| * PagedViewWithDraggableItems implementation |
| */ |
| @Override |
| protected void determineDraggingStart(android.view.MotionEvent ev) { |
| // Disable dragging by pulling an app down for now. |
| } |
| private void beginDraggingApplication(View v) { |
| // Make a copy of the ApplicationInfo |
| ApplicationInfo appInfo = new ApplicationInfo((ApplicationInfo) v.getTag()); |
| |
| // Show the uninstall button if the app is uninstallable. |
| if ((appInfo.flags & ApplicationInfo.DOWNLOADED_FLAG) != 0) { |
| DeleteZone allAppsDeleteZone = (DeleteZone) |
| mLauncher.findViewById(R.id.all_apps_delete_zone); |
| allAppsDeleteZone.setDragAndDropEnabled(true); |
| |
| if ((appInfo.flags & ApplicationInfo.UPDATED_SYSTEM_APP_FLAG) != 0) { |
| allAppsDeleteZone.setText(R.string.delete_zone_label_all_apps_system_app); |
| } else { |
| allAppsDeleteZone.setText(R.string.delete_zone_label_all_apps); |
| } |
| } |
| |
| // Show the info button |
| ApplicationInfoDropTarget allAppsInfoButton = |
| (ApplicationInfoDropTarget) mLauncher.findViewById(R.id.all_apps_info_target); |
| allAppsInfoButton.setDragAndDropEnabled(true); |
| |
| // Compose the drag image (top compound drawable, index is 1) |
| final TextView tv = (TextView) v; |
| final Drawable icon = tv.getCompoundDrawables()[1]; |
| Bitmap b = Bitmap.createBitmap(v.getWidth(), v.getHeight(), |
| Bitmap.Config.ARGB_8888); |
| Canvas c = new Canvas(b); |
| c.translate((v.getWidth() - icon.getIntrinsicWidth()) / 2, v.getPaddingTop()); |
| icon.draw(c); |
| |
| // Compose the visible rect of the drag image |
| Rect dragRect = null; |
| if (v instanceof TextView) { |
| int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); |
| int top = v.getPaddingTop(); |
| int left = (b.getWidth() - iconSize) / 2; |
| int right = left + iconSize; |
| int bottom = top + iconSize; |
| dragRect = new Rect(left, top, right, bottom); |
| } |
| |
| // Start the drag |
| mLauncher.lockScreenOrientation(); |
| mLauncher.getWorkspace().onDragStartedWithItemSpans(1, 1, b); |
| mDragController.startDrag(v, b, this, appInfo, DragController.DRAG_ACTION_COPY, dragRect); |
| b.recycle(); |
| } |
| private void beginDraggingWidget(View v) { |
| // Get the widget preview as the drag representation |
| ImageView image = (ImageView) v.findViewById(R.id.widget_preview); |
| PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); |
| |
| // Compose the drag image |
| Bitmap b; |
| Drawable preview = image.getDrawable(); |
| int w = preview.getIntrinsicWidth(); |
| int h = preview.getIntrinsicHeight(); |
| if (createItemInfo instanceof PendingAddWidgetInfo) { |
| PendingAddWidgetInfo createWidgetInfo = (PendingAddWidgetInfo) createItemInfo; |
| int[] spanXY = CellLayout.rectToCell(getResources(), |
| createWidgetInfo.minWidth, createWidgetInfo.minHeight, null); |
| createItemInfo.spanX = spanXY[0]; |
| createItemInfo.spanY = spanXY[1]; |
| |
| b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); |
| renderDrawableToBitmap(preview, b, 0, 0, w, h, 1, 1); |
| } else { |
| // Workaround for the fact that we don't keep the original ResolveInfo associated with |
| // the shortcut around. To get the icon, we just render the preview image (which has |
| // the shortcut icon) to a new drag bitmap that clips the non-icon space. |
| b = Bitmap.createBitmap(mWidgetPreviewIconPaddedDimension, |
| mWidgetPreviewIconPaddedDimension, Bitmap.Config.ARGB_8888); |
| Canvas c = new Canvas(b); |
| preview.draw(c); |
| createItemInfo.spanX = createItemInfo.spanY = 1; |
| } |
| |
| // Start the drag |
| mLauncher.lockScreenOrientation(); |
| mLauncher.getWorkspace().onDragStartedWithItemSpans(createItemInfo.spanX, |
| createItemInfo.spanY, b); |
| mDragController.startDrag(image, b, this, createItemInfo, |
| DragController.DRAG_ACTION_COPY, null); |
| b.recycle(); |
| } |
| @Override |
| protected boolean beginDragging(View v) { |
| if (!super.beginDragging(v)) return false; |
| |
| // Hide the pane so that the user can drop onto the workspace, we must do this first, |
| // due to how the drop target layout is computed when we start dragging to the workspace. |
| mLauncher.showWorkspace(true); |
| |
| if (v instanceof PagedViewIcon) { |
| beginDraggingApplication(v); |
| } else if (v instanceof PagedViewWidget) { |
| beginDraggingWidget(v); |
| } |
| |
| return true; |
| } |
| private void endDragging(boolean success) { |
| post(new Runnable() { |
| // Once the drag operation has fully completed, hence the post, we want to disable the |
| // deleteZone and the appInfoButton in all apps, and re-enable the instance which |
| // live in the workspace |
| public void run() { |
| // if onDestroy was called on Launcher, we might have already deleted the |
| // all apps delete zone / info button, so check if they are null |
| DeleteZone allAppsDeleteZone = |
| (DeleteZone) mLauncher.findViewById(R.id.all_apps_delete_zone); |
| ApplicationInfoDropTarget allAppsInfoButton = |
| (ApplicationInfoDropTarget) mLauncher.findViewById(R.id.all_apps_info_target); |
| |
| if (allAppsDeleteZone != null) allAppsDeleteZone.setDragAndDropEnabled(false); |
| if (allAppsInfoButton != null) allAppsInfoButton.setDragAndDropEnabled(false); |
| } |
| }); |
| mLauncher.getWorkspace().onDragStopped(success); |
| mLauncher.unlockScreenOrientation(); |
| } |
| |
| /* |
| * DragSource implementation |
| */ |
| @Override |
| public void onDragViewVisible() {} |
| @Override |
| public void onDropCompleted(View target, Object dragInfo, boolean success) { |
| endDragging(success); |
| |
| // Display an error message if the drag failed due to there not being enough space on the |
| // target layout we were dropping on. |
| if (!success) { |
| boolean showOutOfSpaceMessage = false; |
| if (target instanceof Workspace) { |
| int currentScreen = mLauncher.getCurrentWorkspaceScreen(); |
| Workspace workspace = (Workspace) target; |
| CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); |
| ItemInfo itemInfo = (ItemInfo) dragInfo; |
| if (layout != null) { |
| layout.calculateSpans(itemInfo); |
| showOutOfSpaceMessage = |
| !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); |
| } |
| } |
| // TODO-APPS_CUSTOMIZE: We need to handle this for folders as well later. |
| if (showOutOfSpaceMessage) { |
| mLauncher.showOutOfSpaceMessage(); |
| } |
| } |
| } |
| |
| public void setContentType(ContentType type) { |
| mContentType = type; |
| setCurrentPage(0); |
| invalidatePageData(); |
| } |
| |
| /* |
| * Apps PagedView implementation |
| */ |
| private void setVisibilityOnChildren(ViewGroup layout, int visibility) { |
| int childCount = layout.getChildCount(); |
| for (int i = 0; i < childCount; ++i) { |
| layout.getChildAt(i).setVisibility(visibility); |
| } |
| } |
| private void setupPage(PagedViewCellLayout layout) { |
| layout.setCellCount(mCellCountX, mCellCountY); |
| layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); |
| layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, |
| mPageLayoutPaddingRight, mPageLayoutPaddingBottom); |
| |
| // Note: We force a measure here to get around the fact that when we do layout calculations |
| // immediately after syncing, we don't have a proper width. That said, we already know the |
| // expected page width, so we can actually optimize by hiding all the TextView-based |
| // children that are expensive to measure, and let that happen naturally later. |
| setVisibilityOnChildren(layout, View.GONE); |
| int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); |
| int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); |
| layout.setMinimumWidth(getPageContentWidth()); |
| layout.measure(widthSpec, heightSpec); |
| setVisibilityOnChildren(layout, View.VISIBLE); |
| } |
| public void syncAppsPages() { |
| // Ensure that we have the right number of pages |
| Context context = getContext(); |
| int numPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); |
| for (int i = 0; i < numPages; ++i) { |
| PagedViewCellLayout layout = new PagedViewCellLayout(context); |
| setupPage(layout); |
| addView(layout); |
| } |
| } |
| public void syncAppsPageItems(int page) { |
| // ensure that we have the right number of items on the pages |
| int numPages = getPageCount(); |
| int numCells = mCellCountX * mCellCountY; |
| int startIndex = page * numCells; |
| int endIndex = Math.min(startIndex + numCells, mApps.size()); |
| PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(page); |
| layout.removeAllViewsOnPage(); |
| for (int i = startIndex; i < endIndex; ++i) { |
| ApplicationInfo info = mApps.get(i); |
| PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( |
| R.layout.apps_customize_application, layout, false); |
| icon.applyFromApplicationInfo( |
| info, mPageViewIconCache, true, isHardwareAccelerated() && (numPages > 1)); |
| icon.setOnClickListener(this); |
| icon.setOnLongClickListener(this); |
| icon.setOnTouchListener(this); |
| |
| int index = i - startIndex; |
| int x = index % mCellCountX; |
| int y = index / mCellCountX; |
| layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); |
| } |
| } |
| /* |
| * Widgets PagedView implementation |
| */ |
| private void setupPage(PagedViewGridLayout layout) { |
| layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, |
| mPageLayoutPaddingRight, mPageLayoutPaddingBottom); |
| |
| // Note: We force a measure here to get around the fact that when we do layout calculations |
| // immediately after syncing, we don't have a proper width. That said, we already know the |
| // expected page width, so we can actually optimize by hiding all the TextView-based |
| // children that are expensive to measure, and let that happen naturally later. |
| setVisibilityOnChildren(layout, View.GONE); |
| int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); |
| int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); |
| layout.setMinimumWidth(getPageContentWidth()); |
| layout.measure(widthSpec, heightSpec); |
| setVisibilityOnChildren(layout, View.VISIBLE); |
| } |
| private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, |
| float scaleX, float scaleY) { |
| Canvas c = new Canvas(); |
| if (bitmap != null) c.setBitmap(bitmap); |
| c.save(); |
| c.scale(scaleX, scaleY); |
| Rect oldBounds = d.copyBounds(); |
| d.setBounds(x, y, x + w, y + h); |
| d.draw(c); |
| d.setBounds(oldBounds); // Restore the bounds |
| c.restore(); |
| } |
| private FastBitmapDrawable getShortcutPreview(ResolveInfo info, int cellWidth, int cellHeight) { |
| // Return the cached version if necessary |
| Bitmap cachedBitmap = mWidgetPreviewCache.get(info); |
| if (cachedBitmap != null) { |
| return new FastBitmapDrawable(cachedBitmap); |
| } |
| |
| Resources resources = mLauncher.getResources(); |
| int iconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); |
| // We only need to make it wide enough so as not allow the preview to be scaled |
| int expectedWidth = cellWidth; |
| int expectedHeight = mWidgetPreviewIconPaddedDimension; |
| int offset = (int) (iconSize * sWidgetPreviewIconPaddingPercentage); |
| |
| // Render the icon |
| Bitmap preview = Bitmap.createBitmap(expectedWidth, expectedHeight, Config.ARGB_8888); |
| Drawable icon = mIconCache.getFullResIcon(info, mPackageManager); |
| renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, |
| mWidgetPreviewIconPaddedDimension, mWidgetPreviewIconPaddedDimension, 1f, 1f); |
| renderDrawableToBitmap(icon, preview, offset, offset, iconSize, iconSize, 1f, 1f); |
| FastBitmapDrawable iconDrawable = new FastBitmapDrawable(preview); |
| iconDrawable.setBounds(0, 0, expectedWidth, expectedHeight); |
| mWidgetPreviewCache.put(info, preview); |
| return iconDrawable; |
| } |
| private FastBitmapDrawable getWidgetPreview(AppWidgetProviderInfo info, int cellHSpan, |
| int cellVSpan, int cellWidth, int cellHeight) { |
| // Return the cached version if necessary |
| Bitmap cachedBitmap = mWidgetPreviewCache.get(info); |
| if (cachedBitmap != null) { |
| return new FastBitmapDrawable(cachedBitmap); |
| } |
| |
| // Calculate the size of the drawable |
| cellHSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellHSpan)); |
| cellVSpan = Math.max(mMinWidgetSpan, Math.min(mMaxWidgetSpan, cellVSpan)); |
| int expectedWidth = mWidgetSpacingLayout.estimateCellWidth(cellHSpan); |
| int expectedHeight = mWidgetSpacingLayout.estimateCellHeight(cellVSpan); |
| |
| // Scale down the bitmap to fit the space |
| float widgetPreviewScale = (float) cellWidth / expectedWidth; |
| expectedWidth = (int) (widgetPreviewScale * expectedWidth); |
| expectedHeight = (int) (widgetPreviewScale * expectedHeight); |
| |
| // Load the preview image if possible |
| String packageName = info.provider.getPackageName(); |
| Drawable drawable = null; |
| FastBitmapDrawable newDrawable = null; |
| if (info.previewImage != 0) { |
| drawable = mPackageManager.getDrawable(packageName, info.previewImage, null); |
| if (drawable == null) { |
| Log.w(LOG_TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon) |
| + " for provider: " + info.provider); |
| } else { |
| // Scale down the preview to the dimensions we want |
| int imageWidth = drawable.getIntrinsicWidth(); |
| int imageHeight = drawable.getIntrinsicHeight(); |
| float aspect = (float) imageWidth / imageHeight; |
| int newWidth = imageWidth; |
| int newHeight = imageHeight; |
| if (aspect > 1f) { |
| newWidth = expectedWidth; |
| newHeight = (int) (imageHeight * ((float) expectedWidth / imageWidth)); |
| } else { |
| newHeight = expectedHeight; |
| newWidth = (int) (imageWidth * ((float) expectedHeight / imageHeight)); |
| } |
| |
| Bitmap preview = Bitmap.createBitmap(newWidth, newHeight, Config.ARGB_8888); |
| renderDrawableToBitmap(drawable, preview, 0, 0, newWidth, newHeight, 1f, 1f); |
| newDrawable = new FastBitmapDrawable(preview); |
| newDrawable.setBounds(0, 0, newWidth, newHeight); |
| mWidgetPreviewCache.put(info, preview); |
| } |
| } |
| |
| // Generate a preview image if we couldn't load one |
| if (drawable == null) { |
| Resources resources = mLauncher.getResources(); |
| int iconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); |
| |
| // Specify the dimensions of the bitmap |
| if (info.minWidth >= info.minHeight) { |
| expectedWidth = cellWidth; |
| expectedHeight = mWidgetPreviewIconPaddedDimension; |
| } else { |
| // Note that in vertical widgets, we might not have enough space due to the text |
| // label, so be conservative and use the width as a height bound |
| expectedWidth = mWidgetPreviewIconPaddedDimension; |
| expectedHeight = cellWidth; |
| } |
| |
| Bitmap preview = Bitmap.createBitmap(expectedWidth, expectedHeight, Config.ARGB_8888); |
| renderDrawableToBitmap(mDefaultWidgetBackground, preview, 0, 0, expectedWidth, |
| expectedHeight, 1f,1f); |
| |
| // Draw the icon in the top left corner |
| try { |
| Drawable icon = null; |
| if (info.icon > 0) icon = mPackageManager.getDrawable(packageName, info.icon, null); |
| if (icon == null) icon = resources.getDrawable(R.drawable.ic_launcher_application); |
| |
| int offset = (int) (iconSize * sWidgetPreviewIconPaddingPercentage); |
| renderDrawableToBitmap(icon, preview, offset, offset, iconSize, iconSize, 1f, 1f); |
| } catch (Resources.NotFoundException e) {} |
| |
| newDrawable = new FastBitmapDrawable(preview); |
| newDrawable.setBounds(0, 0, expectedWidth, expectedHeight); |
| mWidgetPreviewCache.put(info, preview); |
| } |
| return newDrawable; |
| } |
| public void syncWidgetPages() { |
| // Ensure that we have the right number of pages |
| Context context = getContext(); |
| int numWidgetsPerPage = mWidgetCountX * mWidgetCountY; |
| int numPages = (int) Math.ceil(mWidgets.size() / (float) numWidgetsPerPage); |
| for (int i = 0; i < numPages; ++i) { |
| PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, |
| mWidgetCountY); |
| setupPage(layout); |
| addView(layout); |
| } |
| } |
| public void syncWidgetPageItems(int page) { |
| PagedViewGridLayout layout = (PagedViewGridLayout) getChildAt(page); |
| layout.removeAllViews(); |
| |
| // Calculate the dimensions of each cell we are giving to each widget |
| int numWidgetsPerPage = mWidgetCountX * mWidgetCountY; |
| int offset = page * numWidgetsPerPage; |
| int cellWidth = ((mWidgetSpacingLayout.getContentWidth() - mPageLayoutWidthGap |
| - ((mWidgetCountX - 1) * mCellWidthGap)) / mWidgetCountX); |
| int cellHeight = ((mWidgetSpacingLayout.getContentHeight() - mPageLayoutHeightGap |
| - ((mWidgetCountY - 1) * mCellHeightGap)) / mWidgetCountY); |
| for (int i = 0; i < Math.min(numWidgetsPerPage, mWidgets.size() - offset); ++i) { |
| Object rawInfo = mWidgets.get(offset + i); |
| PendingAddItemInfo createItemInfo = null; |
| PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( |
| R.layout.apps_customize_widget, layout, false); |
| if (rawInfo instanceof AppWidgetProviderInfo) { |
| // Fill in the widget information |
| AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; |
| createItemInfo = new PendingAddWidgetInfo(info, null, null); |
| final int[] cellSpans = CellLayout.rectToCell(getResources(), info.minWidth, |
| info.minHeight, null); |
| FastBitmapDrawable preview = getWidgetPreview(info, cellSpans[0], cellSpans[1], |
| cellWidth, cellHeight); |
| widget.applyFromAppWidgetProviderInfo(info, preview, -1, cellSpans, null, false); |
| widget.setTag(createItemInfo); |
| } else if (rawInfo instanceof ResolveInfo) { |
| // Fill in the shortcuts information |
| ResolveInfo info = (ResolveInfo) rawInfo; |
| createItemInfo = new PendingAddItemInfo(); |
| createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; |
| createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, |
| info.activityInfo.name); |
| FastBitmapDrawable preview = getShortcutPreview(info, cellWidth, cellHeight); |
| widget.applyFromResolveInfo(mPackageManager, info, preview, null, false); |
| widget.setTag(createItemInfo); |
| } |
| widget.setOnClickListener(this); |
| widget.setOnLongClickListener(this); |
| widget.setOnTouchListener(this); |
| |
| // Layout each widget |
| int ix = i % mWidgetCountX; |
| int iy = i / mWidgetCountX; |
| PagedViewGridLayout.LayoutParams lp = new PagedViewGridLayout.LayoutParams(cellWidth, |
| cellHeight); |
| lp.leftMargin = (ix * cellWidth) + (ix * mCellWidthGap); |
| lp.topMargin = (iy * cellHeight) + (iy * mCellHeightGap); |
| layout.addView(widget, lp); |
| } |
| } |
| |
| @Override |
| public void syncPages() { |
| removeAllViews(); |
| switch (mContentType) { |
| case Applications: |
| syncAppsPages(); |
| break; |
| case Widgets: |
| syncWidgetPages(); |
| break; |
| } |
| } |
| @Override |
| public void syncPageItems(int page) { |
| switch (mContentType) { |
| case Applications: |
| syncAppsPageItems(page); |
| break; |
| case Widgets: |
| syncWidgetPageItems(page); |
| break; |
| } |
| } |
| |
| /** |
| * Used by the parent to get the content width to set the tab bar to |
| * @return |
| */ |
| public int getPageContentWidth() { |
| return mContentWidth; |
| } |
| |
| /* |
| * AllAppsView implementation |
| */ |
| @Override |
| public void setup(Launcher launcher, DragController dragController) { |
| mLauncher = launcher; |
| mDragController = dragController; |
| } |
| @Override |
| public void zoom(float zoom, boolean animate) { |
| // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() |
| } |
| @Override |
| public boolean isVisible() { |
| return (getVisibility() == VISIBLE); |
| } |
| @Override |
| public boolean isAnimating() { |
| return false; |
| } |
| @Override |
| public void setApps(ArrayList<ApplicationInfo> list) { |
| mApps = list; |
| Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); |
| invalidatePageData(); |
| } |
| private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { |
| // We add it in place, in alphabetical order |
| int count = list.size(); |
| for (int i = 0; i < count; ++i) { |
| ApplicationInfo info = list.get(i); |
| int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); |
| if (index < 0) { |
| mApps.add(-(index + 1), info); |
| } |
| } |
| } |
| @Override |
| public void addApps(ArrayList<ApplicationInfo> list) { |
| addAppsWithoutInvalidate(list); |
| invalidatePageData(); |
| } |
| private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { |
| ComponentName removeComponent = item.intent.getComponent(); |
| int length = list.size(); |
| for (int i = 0; i < length; ++i) { |
| ApplicationInfo info = list.get(i); |
| if (info.intent.getComponent().equals(removeComponent)) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { |
| // loop through all the apps and remove apps that have the same component |
| int length = list.size(); |
| for (int i = 0; i < length; ++i) { |
| ApplicationInfo info = list.get(i); |
| int removeIndex = findAppByComponent(mApps, info); |
| if (removeIndex > -1) { |
| mApps.remove(removeIndex); |
| mPageViewIconCache.removeOutline(new PagedViewIconCache.Key(info)); |
| } |
| } |
| } |
| @Override |
| public void removeApps(ArrayList<ApplicationInfo> list) { |
| removeAppsWithoutInvalidate(list); |
| invalidatePageData(); |
| } |
| @Override |
| public void updateApps(ArrayList<ApplicationInfo> list) { |
| // We remove and re-add the updated applications list because it's properties may have |
| // changed (ie. the title), and this will ensure that the items will be in their proper |
| // place in the list. |
| removeAppsWithoutInvalidate(list); |
| addAppsWithoutInvalidate(list); |
| invalidatePageData(); |
| } |
| @Override |
| public void reset() { |
| if (mContentType != ContentType.Applications) { |
| // Reset to the first page of the Apps pane |
| AppsCustomizeTabHost tabs = (AppsCustomizeTabHost) |
| mLauncher.findViewById(R.id.apps_customize_pane); |
| tabs.setCurrentTabByTag(tabs.getTabTagForContentType(ContentType.Applications)); |
| } else { |
| setCurrentPage(0); |
| invalidatePageData(); |
| } |
| } |
| @Override |
| public void dumpState() { |
| // TODO: Dump information related to current list of Applications, Widgets, etc. |
| ApplicationInfo.dumpApplicationInfoList(LOG_TAG, "mApps", mApps); |
| dumpAppWidgetProviderInfoList(LOG_TAG, "mWidgets", mWidgets); |
| } |
| private void dumpAppWidgetProviderInfoList(String tag, String label, |
| List<Object> list) { |
| Log.d(tag, label + " size=" + list.size()); |
| for (Object i: list) { |
| if (i instanceof AppWidgetProviderInfo) { |
| AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; |
| Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage |
| + " resizeMode=" + info.resizeMode + " configure=" + info.configure |
| + " initialLayout=" + info.initialLayout |
| + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); |
| } else if (i instanceof ResolveInfo) { |
| ResolveInfo info = (ResolveInfo) i; |
| Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" |
| + info.icon); |
| } |
| } |
| } |
| @Override |
| public void surrender() { |
| // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we |
| // should stop this now. |
| } |
| } |