protected boolean createAndAddShortcut(ShortcutInfo item) {
final StyledTextFoo textView =
(StyledTextFoo) mInflater.inflate(R.layout.application, this, false);
textView.setCompoundDrawablesWithIntrinsicBounds(
null, new FastBitmapDrawable(item.getIcon(mIconCache)), null, null);
textView.setText(item.title);
textView.setTag(item);
textView.setOnClickListener(this);
textView.setOnLongClickListener(this);
// We need to check here to verify that the given item's location isn't already occupied
// by another item. If it is, we need to find the next available slot and assign
// it that position. This is an issue when upgrading from the old Folders implementation
// which could contain an unlimited number of items.
if (mContent.getChildAt(item.cellX, item.cellY) != null
|| item.cellX < 0
|| item.cellY < 0
|| item.cellX >= mContent.getCountX()
|| item.cellY >= mContent.getCountY()) {
if (!findAndSetEmptyCells(item)) {
return false;
}
}
CellLayout.LayoutParams lp =
new CellLayout.LayoutParams(item.cellX, item.cellY, item.spanX, item.spanY);
boolean insert = false;
textView.setOnKeyListener(new FolderKeyEventListener());
mContent.addViewToCellLayout(textView, insert ? 0 : -1, (int) item.id, lp, true);
return true;
}
public void onDragOver(DragObject d) {
final DragView dragView = d.dragView;
final int scrollOffset = mScrollView.getScrollY();
final float[] r = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, dragView, null);
r[0] -= getPaddingLeft();
r[1] -= getPaddingTop();
final long downTime = SystemClock.uptimeMillis();
final MotionEvent translatedEv =
MotionEvent.obtain(downTime, downTime, MotionEvent.ACTION_MOVE, d.x, d.y, 0);
if (!mAutoScrollHelper.isEnabled()) {
mAutoScrollHelper.setEnabled(true);
}
final boolean handled = mAutoScrollHelper.onTouch(this, translatedEv);
translatedEv.recycle();
if (handled) {
mReorderAlarm.cancelAlarm();
} else {
mTargetCell =
mContent.findNearestArea((int) r[0], (int) r[1] + scrollOffset, 1, 1, mTargetCell);
if (isLayoutRtl()) {
mTargetCell[0] = mContent.getCountX() - mTargetCell[0] - 1;
}
if (mTargetCell[0] != mPreviousTargetCell[0] || mTargetCell[1] != mPreviousTargetCell[1]) {
mReorderAlarm.cancelAlarm();
mReorderAlarm.setOnAlarmListener(mReorderAlarmListener);
mReorderAlarm.setAlarm(REORDER_DELAY);
mPreviousTargetCell[0] = mTargetCell[0];
mPreviousTargetCell[1] = mTargetCell[1];
}
}
}
/** 向Folder添加ShortcutInfo */
protected boolean createAndAddShortcut(ShortcutInfo item) {
final TextView textView = (TextView) mInflater.inflate(R.layout.application, this, false);
textView.setCompoundDrawablesWithIntrinsicBounds(
null, new FastBitmapDrawable(item.getIcon(mIconCache)), null, null);
textView.setText(item.title);
textView.setTag(item);
textView.setOnClickListener(this);
textView.setOnLongClickListener(this);
// 检查这个地方是否被其他item占据
if (mContent.getChildAt(item.cellX, item.cellY) != null
|| item.cellX < 0
|| item.cellY < 0
|| item.cellX >= mContent.getCountX()
|| item.cellY >= mContent.getCountY()) {
// 其实不应该发生
Log.e(TAG, "Folder order not properly persisted during bind");
if (!findAndSetEmptyCells(item)) {
return false;
}
}
CellLayout.LayoutParams lp =
new CellLayout.LayoutParams(item.cellX, item.cellY, item.spanX, item.spanY);
boolean insert = false;
textView.setOnKeyListener(new FolderKeyEventListener());
mContent.addViewToCellLayout(textView, insert ? 0 : -1, (int) item.id, lp, true);
return true;
}
private void setupContentDimensions(int count) {
ArrayList<View> list = getItemsInReadingOrder();
int countX = mContent.getCountX();
int countY = mContent.getCountY();
boolean done = false;
while (!done) {
int oldCountX = countX;
int oldCountY = countY;
if (countX * countY < count) {
// Current grid is too small, expand it
if ((countX <= countY || countY == mMaxCountY) && countX < mMaxCountX) {
countX++;
} else if (countY < mMaxCountY) {
countY++;
}
if (countY == 0) countY++;
} else if ((countY - 1) * countX >= count && countY >= countX) {
countY = Math.max(0, countY - 1);
} else if ((countX - 1) * countY >= count) {
countX = Math.max(0, countX - 1);
}
done = countX == oldCountX && countY == oldCountY;
}
mContent.setGridSize(countX, countY);
arrangeChildren(list);
}
@Override
protected void dispatchDraw(Canvas canvas) {
super.dispatchDraw(canvas);
if (mInScrollArea && !LauncherApplication.isScreenLarge()) {
Workspace workspace = mLauncher.getWorkspace();
int width = workspace.getWidth();
Rect childRect = new Rect();
getDescendantRectRelativeToSelf(workspace.getChildAt(0), childRect);
int page = workspace.getNextPage();
final boolean isRtl = isLayoutDirectionRtl();
CellLayout leftPage = (CellLayout) workspace.getChildAt(isRtl ? page + 1 : page - 1);
CellLayout rightPage = (CellLayout) workspace.getChildAt(isRtl ? page - 1 : page + 1);
if (leftPage != null && leftPage.getIsDragOverlapping()) {
mLeftHoverDrawable.setBounds(
0, childRect.top, mLeftHoverDrawable.getIntrinsicWidth(), childRect.bottom);
mLeftHoverDrawable.draw(canvas);
} else if (rightPage != null && rightPage.getIsDragOverlapping()) {
mRightHoverDrawable.setBounds(
width - mRightHoverDrawable.getIntrinsicWidth(),
childRect.top,
width,
childRect.bottom);
mRightHoverDrawable.draw(canvas);
}
}
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mContent = (CellLayout) findViewById(R.id.folder_content);
mContent.setGridSize(0, 0);
mContent.getChildrenLayout().setMotionEventSplittingEnabled(false);
mFolderName = (FolderEditText) findViewById(R.id.folder_name);
mFolderName.setFolder(this);
mFolderName.setOnFocusChangeListener(this);
// We find out how tall the text view wants to be (it is set to wrap_content), so that
// we can allocate the appropriate amount of space for it.
int measureSpec = MeasureSpec.UNSPECIFIED;
mFolderName.measure(measureSpec, measureSpec);
mFolderNameHeight = mFolderName.getMeasuredHeight();
// We disable action mode for now since it messes up the view on phones
mFolderName.setCustomSelectionActionModeCallback(mActionModeCallback);
mFolderName.setOnEditorActionListener(this);
mFolderName.setSelectAllOnFocus(true);
mFolderName.setInputType(
mFolderName.getInputType()
| InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS
| InputType.TYPE_TEXT_FLAG_CAP_WORDS);
}
void clearChildrenCache() {
final int count = getChildCount();
for (int i = 0; i < count; i++) {
final CellLayout layout = (CellLayout) getChildAt(i);
layout.setChildrenDrawnWithCacheEnabled(false);
}
}
public void onDrop(
DragSource source,
int x,
int y,
int xOffset,
int yOffset,
DragView dragView,
Object dragInfo) {
final ItemInfo item = (ItemInfo) dragInfo;
if (item instanceof ShortcutInfo) {
final ShortcutInfo mShortcutInfo = (ShortcutInfo) item;
if ((mShortcutInfo.title.equals("天气")
|| mShortcutInfo.title.equals("发现")
|| mShortcutInfo.title.equals("扫一扫")
|| mShortcutInfo.title.equals("账户"))
&& mShortcutInfo.url.equals("")) {
shortcutCreate_ZhiDing(mLauncher, mShortcutInfo, mShortcutInfo.title.toString());
} else {
Tools.shortcutCreate(
mLauncher,
mShortcutInfo.title.toString(),
mShortcutInfo.getIcon(),
mShortcutInfo.url.toString());
}
CellLayout child = (CellLayout) mWorkspace.getChildAt(mShortcutInfo.screen);
child.animateGapRover();
child.requestLayout();
}
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mContent = (CellLayout) findViewById(R.id.folder_content);
mContent.setGridSize(0, 0);
mContent.getShortcutsAndWidgets().setMotionEventSplittingEnabled(false);
mFolderName = (FolderEditText) findViewById(R.id.folder_name);
mFolderName.setFolder(this);
mFolderName.setOnFocusChangeListener(this);
// 算出TextView最终需要多大，以便可以给它腾出适合大小的地方
int measureSpec = MeasureSpec.UNSPECIFIED;
mFolderName.measure(measureSpec, measureSpec);
mFolderNameHeight = mFolderName.getMeasuredHeight();
// We disable action mode for now since it messes up the view on phones
// 暂时禁止action mode，因为它有可能会情致view混乱
mFolderName.setCustomSelectionActionModeCallback(mActionModeCallback);
mFolderName.setOnEditorActionListener(this);
mFolderName.setSelectAllOnFocus(true);
mFolderName.setInputType(
mFolderName.getInputType()
| InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS
| InputType.TYPE_TEXT_FLAG_CAP_WORDS);
}
void setCellLayoutPressedOrFocusedIcon() {
if (getParent() instanceof ShortcutAndWidgetContainer) {
ShortcutAndWidgetContainer parent = (ShortcutAndWidgetContainer) getParent();
if (parent != null) {
CellLayout layout = (CellLayout) parent.getParent();
layout.setPressedOrFocusedIcon((mPressedOrFocusedBackground != null) ? this : null);
}
}
}
public void onDragEnter(Object dragInfo) {
if (!willAcceptItem((ItemInfo) dragInfo)) return;
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) getLayoutParams();
CellLayout layout = (CellLayout) getParent().getParent();
mFolderRingAnimator.setCell(lp.cellX, lp.cellY);
mFolderRingAnimator.setCellLayout(layout);
mFolderRingAnimator.animateToAcceptState();
layout.showFolderAccept(mFolderRingAnimator);
}
void setCellLayoutPressedOrFocusedIcon() {
final View shortcutView = (View) getParent();
if (shortcutView != null) {
final View cellLayoutChildren = (View) shortcutView.getParent();
if (cellLayoutChildren != null && cellLayoutChildren instanceof CellLayoutChildren) {
CellLayout layout = (CellLayout) cellLayoutChildren.getParent();
layout.setPressedOrFocusedIcon((mPressedOrFocusedBackground != null) ? this : null);
}
}
}
/** 以图标为中心，中心对齐，比如缩放时要以中心对齐 */
private void centerAboutIcon() {
DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams();
int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth();
int height =
getPaddingTop() + getPaddingBottom() + mContent.getDesiredHeight() + mFolderNameHeight;
DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer);
float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, mTempRect);
int centerX = (int) (mTempRect.left + mTempRect.width() * scale / 2);
int centerY = (int) (mTempRect.top + mTempRect.height() * scale / 2);
int centeredLeft = centerX - width / 2;
int centeredTop = centerY - height / 2;
int currentPage = mLauncher.getWorkspace().getCurrentPage();
// In case the workspace is scrolling, we need to use the final scroll
// to compute
// the folders bounds.
// 如果workspace正在滚动，就强制滚动到最后以计算最终的位置
mLauncher.getWorkspace().setFinalScrollForPageChange(currentPage);
// We first fetch the currently visible CellLayoutChildren
// 首先获取可见CellLayoutChildren
CellLayout currentLayout = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPage);
ShortcutAndWidgetContainer boundingLayout = currentLayout.getShortcutsAndWidgets();
Rect bounds = new Rect();
parent.getDescendantRectRelativeToSelf(boundingLayout, bounds);
// We reset the workspaces scroll
// 强制重置workspace的滚动状态
mLauncher.getWorkspace().resetFinalScrollForPageChange(currentPage);
// 重新调整folder的边界，如果有需要的话，比如实际内容比folder要更大或者更小
int left = Math.min(Math.max(bounds.left, centeredLeft), bounds.left + bounds.width() - width);
int top = Math.min(Math.max(bounds.top, centeredTop), bounds.top + bounds.height() - height);
// 如果实际内容比folder要更大或者更小，那么调整为实际大小
if (width >= bounds.width()) {
left = bounds.left + (bounds.width() - width) / 2;
}
if (height >= bounds.height()) {
top = bounds.top + (bounds.height() - height) / 2;
}
int folderPivotX = width / 2 + (centeredLeft - left);
int folderPivotY = height / 2 + (centeredTop - top);
// 设置Folder的锚点
setPivotX(folderPivotX);
setPivotY(folderPivotY);
mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * (1.0f * folderPivotX / width));
mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * (1.0f * folderPivotY / height));
lp.width = width;
lp.height = height;
lp.x = left;
lp.y = top;
}
public boolean onDragOver(
DragSource source,
int x,
int y,
int xOffset,
int yOffset,
DragView dragView,
Object dragInfo) {
Log.d(TAG, "onDragOver " + x + "," + y + "," + xOffset + "," + yOffset);
// if (!mContent.mOverLeftRect.contains(x, y)) {
// return false;
// }
CellLayout targetCelllayout = (CellLayout) getParent();
if (targetCelllayout == null) {
return false;
}
CellLayout.LayoutParams targetLp = (CellLayout.LayoutParams) getLayoutParams();
final int tempTargetCellX = targetLp.cellX;
final int tempTargetCellY = targetLp.cellY;
boolean result = false;
boolean needToShowAsFolderIcon = false;
if (mContent.mOverLeftRect.contains(x, y)) {
result = targetCelllayout.movePos(tempTargetCellX, tempTargetCellY, true);
} else if (mContent.mOverRightrRect.contains(x, y)) {
result = targetCelllayout.movePos(tempTargetCellX, tempTargetCellY, false);
} else if (mContent.mCenterRect.contains(x, y)) {
needToShowAsFolderIcon = true;
}
if (needToShowAsFolderIcon) {
setFolderIcon(dragInfo);
} else {
setOrilIcon(dragInfo);
}
return result;
// if (!targetCelllayout.movePos(tempTargetCellX, tempTargetCellY,
// false)) {
// return false;
// }
// final ShortcutInfo info = (ShortcutInfo) getTag();
// final Bitmap mFolderIcon = info.getIcon(mLauncher.getIconCache());
// mContent.setIphoneIcon(mFolderIcon);
// if (getAnimation() != null && getAnimation().hasStarted())
// showUninstallBtn(true);
// return true;
}
private void centerAboutIcon() {
DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams();
DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer);
int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth();
int height = getFolderHeight();
float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, mTempRect);
LauncherAppState app = LauncherAppState.getInstance();
DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();
int centerX = (int) (mTempRect.left + mTempRect.width() * scale / 2);
int centerY = (int) (mTempRect.top + mTempRect.height() * scale / 2);
int centeredLeft = centerX - width / 2;
int centeredTop = centerY - height / 2;
int currentPage = mLauncher.getWorkspace().getNextPage();
// In case the workspace is scrolling, we need to use the final scroll to compute
// the folders bounds.
mLauncher.getWorkspace().setFinalScrollForPageChange(currentPage);
// We first fetch the currently visible CellLayoutChildren
CellLayout currentLayout = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPage);
ShortcutAndWidgetContainer boundingLayout = currentLayout.getShortcutsAndWidgets();
Rect bounds = new Rect();
parent.getDescendantRectRelativeToSelf(boundingLayout, bounds);
// We reset the workspaces scroll
mLauncher.getWorkspace().resetFinalScrollForPageChange(currentPage);
// We need to bound the folder to the currently visible CellLayoutChildren
int left = Math.min(Math.max(bounds.left, centeredLeft), bounds.left + bounds.width() - width);
int top = Math.min(Math.max(bounds.top, centeredTop), bounds.top + bounds.height() - height);
if (grid.isPhone() && (grid.availableWidthPx - width) < grid.iconSizePx) {
// Center the folder if it is full (on phones only)
left = (grid.availableWidthPx - width) / 2;
} else if (width >= bounds.width()) {
// If the folder doesn't fit within the bounds, center it about the desired bounds
left = bounds.left + (bounds.width() - width) / 2;
}
if (height >= bounds.height()) {
top = bounds.top + (bounds.height() - height) / 2;
}
int folderPivotX = width / 2 + (centeredLeft - left);
int folderPivotY = height / 2 + (centeredTop - top);
setPivotX(folderPivotX);
setPivotY(folderPivotY);
mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * (1.0f * folderPivotX / width));
mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * (1.0f * folderPivotY / height));
lp.width = width;
lp.height = height;
lp.x = left;
lp.y = top;
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
if (mCellCountX < 0) mCellCountX = DEFAULT_CELL_COUNT_X;
if (mCellCountY < 0) mCellCountY = DEFAULT_CELL_COUNT_Y;
mContent = (CellLayout) findViewById(R.id.layout);
mContent.setGridSize(mCellCountX, mCellCountY);
mContent.setIsHotseat(true);
resetLayout();
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
if (mCellCountX < 0) mCellCountX = LauncherModel.getCellCountX();
if (mCellCountY < 0) mCellCountY = LauncherModel.getCellCountY();
mContent = (CellLayout) findViewById(R.id.layout);
mContent.setGridSize(mCellCountX, mCellCountY);
mContent.setIsHotseat(true);
resetLayout();
}
private View getViewForInfo(ShortcutInfo item) {
for (int j = 0; j < mContent.getCountY(); j++) {
for (int i = 0; i < mContent.getCountX(); i++) {
View v = mContent.getChildAt(i, j);
if (v.getTag() == item) {
return v;
}
}
}
return null;
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mScrollView = (ScrollView) findViewById(R.id.scroll_view);
mContent = (CellLayout) findViewById(R.id.folder_content);
mFocusIndicatorHandler = new FocusIndicatorView(getContext());
mContent.addView(mFocusIndicatorHandler, 0);
mFocusIndicatorHandler.getLayoutParams().height = FocusIndicatorView.DEFAULT_LAYOUT_SIZE;
mFocusIndicatorHandler.getLayoutParams().width = FocusIndicatorView.DEFAULT_LAYOUT_SIZE;
LauncherAppState app = LauncherAppState.getInstance();
DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();
mContent.setCellDimensions(grid.folderCellWidthPx, grid.folderCellHeightPx);
mContent.setGridSize(0, 0);
mContent.getShortcutsAndWidgets().setMotionEventSplittingEnabled(false);
mContent.setInvertIfRtl(true);
mFolderName = (FolderEditText) findViewById(R.id.folder_name);
mFolderName.setFolder(this);
if (mLauncher.getLockWorkspace()) {
mFolderName.setKeyListener(null);
mFolderName.setFocusable(false);
} else {
mFolderName.setOnFocusChangeListener(this);
}
// We find out how tall the text view wants to be (it is set to wrap_content), so that
// we can allocate the appropriate amount of space for it.
int measureSpec = MeasureSpec.UNSPECIFIED;
mFolderName.measure(measureSpec, measureSpec);
mFolderNameHeight = mFolderName.getMeasuredHeight();
// We disable action mode for now since it messes up the view on phones
mFolderName.setCustomSelectionActionModeCallback(mActionModeCallback);
mFolderName.setOnEditorActionListener(this);
mFolderName.setSelectAllOnFocus(true);
mFolderName.setInputType(
mFolderName.getInputType()
| InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS
| InputType.TYPE_TEXT_FLAG_CAP_WORDS);
mAutoScrollHelper = new FolderAutoScrollHelper(mScrollView);
boolean hideFolderName =
SettingsProvider.getBoolean(mLauncher, SettingsProvider.HIDE_FOLDER_NAME, false);
if (hideFolderName) {
mFolderName.setVisibility(View.GONE);
mFolderNameHeight = 0;
}
}
public View getViewForTag(Object tag) {
int screenCount = mItemCount;
for (int screen = 0; screen < screenCount; screen++) {
CellLayout currentScreen = ((CellLayout) getChildAt(screen));
int count = currentScreen.getChildCount();
for (int i = 0; i < count; i++) {
View child = currentScreen.getChildAt(i);
if (child.getTag() == tag) {
return child;
}
}
}
return null;
}
private void centerAboutIcon() {
DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams();
int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth();
int height =
getPaddingTop() + getPaddingBottom() + mContent.getDesiredHeight() + mFolderNameHeight;
DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer);
parent.getDescendantRectRelativeToSelf(mFolderIcon, mTempRect);
int centerX = mTempRect.centerX();
int centerY = mTempRect.centerY();
int centeredLeft = centerX - width / 2;
int centeredTop = centerY - height / 2;
// We first fetch the currently visible CellLayoutChildren
CellLayout currentPage = mLauncher.getWorkspace().getCurrentDropLayout();
CellLayoutChildren boundingLayout = currentPage.getChildrenLayout();
Rect bounds = new Rect();
parent.getDescendantRectRelativeToSelf(boundingLayout, bounds);
// We need to bound the folder to the currently visible CellLayoutChildren
int left = Math.min(Math.max(bounds.left, centeredLeft), bounds.left + bounds.width() - width);
int top = Math.min(Math.max(bounds.top, centeredTop), bounds.top + bounds.height() - height);
// If the folder doesn't fit within the bounds, center it about the desired bounds
if (width >= bounds.width()) {
left = bounds.left + (bounds.width() - width) / 2;
}
if (height >= bounds.height()) {
top = bounds.top + (bounds.height() - height) / 2;
}
int folderPivotX = width / 2 + (centeredLeft - left);
int folderPivotY = height / 2 + (centeredTop - top);
setPivotX(folderPivotX);
setPivotY(folderPivotY);
int folderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * (1.0f * folderPivotX / width));
int folderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * (1.0f * folderPivotY / height));
mFolderIcon.setPivotX(folderIconPivotX);
mFolderIcon.setPivotY(folderIconPivotY);
if (mMode == PARTIAL_GROW) {
lp.width = width;
lp.height = height;
lp.x = left;
lp.y = top;
} else {
mNewSize.set(left, top, left + width, top + height);
}
}
void setStayPressed(boolean stayPressed) {
mStayPressed = stayPressed;
if (!stayPressed) {
mPressedBackground = null;
}
// Only show the shadow effect when persistent pressed state is set.
if (getParent() instanceof ShortcutAndWidgetContainer) {
CellLayout layout = (CellLayout) getParent().getParent();
layout.setPressedIcon(this, mPressedBackground, mOutlineHelper.shadowBitmapPadding);
}
updateIconState();
}
public ArrayList<View> getItemsInReadingOrder() {
if (mItemsInvalidated) {
mItemsInReadingOrder.clear();
for (int j = 0; j < mContent.getCountY(); j++) {
for (int i = 0; i < mContent.getCountX(); i++) {
View v = mContent.getChildAt(i, j);
if (v != null) {
mItemsInReadingOrder.add(v);
}
}
}
mItemsInvalidated = false;
}
return mItemsInReadingOrder;
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth();
int height =
getPaddingTop() + getPaddingBottom() + mContent.getDesiredHeight() + mFolderNameHeight;
int contentWidthSpec =
MeasureSpec.makeMeasureSpec(mContent.getDesiredWidth(), MeasureSpec.EXACTLY);
int contentHeightSpec =
MeasureSpec.makeMeasureSpec(mContent.getDesiredHeight(), MeasureSpec.EXACTLY);
mContent.measure(contentWidthSpec, contentHeightSpec);
mFolderName.measure(
contentWidthSpec, MeasureSpec.makeMeasureSpec(mFolderNameHeight, MeasureSpec.EXACTLY));
setMeasuredDimension(width, height);
}
public void onDrop(DragObject d) {
ShortcutInfo item;
if (d.dragInfo instanceof ApplicationInfo) {
// 如果是来自“所有程序”界面，那么复制这个item
item = ((ApplicationInfo) d.dragInfo).makeShortcut();
item.spanX = 1;
item.spanY = 1;
} else {
item = (ShortcutInfo) d.dragInfo;
}
// Dragged from self onto self, currently this is the only path
// possible, however
// we keep this as a distinct code path.
// 这个判断应该不可能出现别的情况，当前手动对象当然应该是这个d，这是过于谨慎的判断
if (item == mCurrentDragInfo) {
ShortcutInfo si = (ShortcutInfo) mCurrentDragView.getTag();
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) mCurrentDragView.getLayoutParams();
si.cellX = lp.cellX = mEmptyCell[0];
si.cellX = lp.cellY = mEmptyCell[1];
mContent.addViewToCellLayout(mCurrentDragView, -1, (int) item.id, lp, true);
if (d.dragView.hasDrawn()) {
mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, mCurrentDragView);
} else {
d.deferDragViewCleanupPostAnimation = false;
mCurrentDragView.setVisibility(VISIBLE);
}
mItemsInvalidated = true;
// 拖进来后重新设置Folder的大小
setupContentDimensions(getItemCount());
mSuppressOnAdd = true;
}
mInfo.add(item);
}
public boolean onLongClick(View v) {
// 返回是否全局拖动被禁止，如果是，则不执行下面的动作
if (!mLauncher.isDraggingEnabled()) return true;
Object tag = v.getTag();
if (tag instanceof ShortcutInfo) {
ShortcutInfo item = (ShortcutInfo) tag;
if (!v.isInTouchMode()) {
return false;
}
mLauncher.dismissFolderCling(null);
mLauncher.getWorkspace().onDragStartedWithItem(v);
mLauncher.getWorkspace().beginDragShared(v, this); // 此处发起拖动
mIconDrawable = ((TextView) v).getCompoundDrawables()[1];
mCurrentDragInfo = item;
mEmptyCell[0] = item.cellX;
mEmptyCell[1] = item.cellY;
mCurrentDragView = v;
mContent.removeView(mCurrentDragView);
mInfo.remove(mCurrentDragInfo);
mDragInProgress = true;
mItemAddedBackToSelfViaIcon = false;
}
return true;
}
public void onDrop(DragObject d) {
ShortcutInfo item;
if (d.dragInfo instanceof ApplicationInfo) {
// Came from all apps -- make a copy
item = ((ApplicationInfo) d.dragInfo).makeShortcut();
item.spanX = 1;
item.spanY = 1;
} else {
item = (ShortcutInfo) d.dragInfo;
}
// Dragged from self onto self, currently this is the only path possible, however
// we keep this as a distinct code path.
if (item == mCurrentDragInfo) {
ShortcutInfo si = (ShortcutInfo) mCurrentDragView.getTag();
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) mCurrentDragView.getLayoutParams();
si.cellX = lp.cellX = mEmptyCell[0];
si.cellX = lp.cellY = mEmptyCell[1];
mContent.addViewToCellLayout(mCurrentDragView, -1, (int) item.id, lp, true);
if (d.dragView.hasDrawn()) {
mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, mCurrentDragView);
} else {
mCurrentDragView.setVisibility(VISIBLE);
}
mItemsInvalidated = true;
setupContentDimensions(getItemCount());
mSuppressOnAdd = true;
}
mInfo.add(item);
}
public boolean onLongClick(View v) {
// Return if workspace is locked
if (mLauncher.getLockWorkspace()) return false;
// Return if global dragging is not enabled
if (!mLauncher.isDraggingEnabled()) return true;
Object tag = v.getTag();
if (tag instanceof ShortcutInfo) {
ShortcutInfo item = (ShortcutInfo) tag;
if (!v.isInTouchMode()) {
return false;
}
mLauncher.getWorkspace().beginDragShared(v, this);
mCurrentDragInfo = item;
mEmptyCell[0] = item.cellX;
mEmptyCell[1] = item.cellY;
mCurrentDragView = v;
mContent.removeView(mCurrentDragView);
mInfo.remove(mCurrentDragInfo);
mDragInProgress = true;
mItemAddedBackToSelfViaIcon = false;
}
return true;
}
public void onTouchUp() {
int xThreshold = mCellLayout.getCellWidth() + mCellLayout.getWidthGap();
int yThreshold = mCellLayout.getCellHeight() + mCellLayout.getHeightGap();
mDeltaXAddOn = mRunningHInc * xThreshold;
mDeltaYAddOn = mRunningVInc * yThreshold;
mDeltaX = 0;
mDeltaY = 0;
post(
new Runnable() {
@Override
public void run() {
snapToWidget(true);
}
});
}
/** 数据有变化，则清空数据并且重建 */
void notifyDataSetChanged() {
// recreate all the children if the data set changes under us. We may
// want to do this more
// intelligently (ie just removing the views that should no longer
// exist)
mContent.removeAllViewsInLayout();
bind(mInfo);
}