public void setTabSelected(int position) {
mSelectedTabIndex = position;
final int tabCount = mTabLayout.getChildCount();
for (int i = 0; i < tabCount; i++) {
final View child = mTabLayout.getChildAt(i);
final boolean isSelected = i == position;
child.setSelected(isSelected);
if (isSelected) {
animateToTab(position);
}
}
}
public void notifyDataSetChanged() {
mIconsLayout.removeAllViews();
IconPagerAdapter iconAdapter = (IconPagerAdapter) mViewPager.getAdapter();
int count = iconAdapter.getCount();
for (int i = 0; i < count; i++) {
ImageView view = new ImageView(getContext(), null, R.attr.vpiIconPageIndicatorStyle);
view.setImageResource(iconAdapter.getIconResId(i));
mIconsLayout.addView(view);
}
if (mSelectedIndex > count) {
mSelectedIndex = count - 1;
}
setCurrentItem(mSelectedIndex);
requestLayout();
}
@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
final boolean lockedExpanded = widthMode == MeasureSpec.EXACTLY;
setFillViewport(lockedExpanded);
final int childCount = mTabLayout.getChildCount();
if (childCount > 1 && (widthMode == MeasureSpec.EXACTLY || widthMode == MeasureSpec.AT_MOST)) {
if (childCount > 2) {
mMaxTabWidth = (int) (MeasureSpec.getSize(widthMeasureSpec) * 0.4f);
} else {
mMaxTabWidth = MeasureSpec.getSize(widthMeasureSpec) / 2;
}
} else {
mMaxTabWidth = -1;
}
final int oldWidth = getMeasuredWidth();
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
final int newWidth = getMeasuredWidth();
if (lockedExpanded && oldWidth != newWidth) {
// Recenter the tab display if we're at a new (scrollable) size.
setCurrentItem(mSelectedTabIndex);
}
}
public void notifyDataSetChanged() {
mTabLayout.removeAllViews();
PagerAdapter adapter = mViewPager.getAdapter();
IconPagerAdapter iconAdapter = null;
if (adapter instanceof IconPagerAdapter) {
iconAdapter = (IconPagerAdapter) adapter;
}
final int count = adapter.getCount();
for (int i = 0; i < count; i++) {
CharSequence title = adapter.getPageTitle(i);
if (title == null) {
title = EMPTY_TITLE;
}
int iconResId = 0;
if (iconAdapter != null) {
iconResId = iconAdapter.getIconResId(i);
}
addTab(i, title, iconResId);
}
if (mSelectedTabIndex > count) {
mSelectedTabIndex = count - 1;
}
setCurrentItem(mSelectedTabIndex);
requestLayout();
}
@Override
public void setCurrentItem(int item) {
if (mViewPager == null) {
throw new IllegalStateException("ViewPager has not been bound.");
}
mSelectedTabIndex = item;
mViewPager.setCurrentItem(item);
final int tabCount = mTabLayout.getChildCount();
for (int i = 0; i < tabCount; i++) {
final View child = mTabLayout.getChildAt(i);
final boolean isSelected = (i == item);
child.setSelected(isSelected);
if (isSelected) {
animateToTab(item);
}
}
}
public void updateTab(int position) {
((TabView) mTabLayout.getChildAt(position)).update();
if (mTabSpinner != null) {
((TabAdapter) mTabSpinner.getAdapter()).notifyDataSetChanged();
}
if (mAllowCollapse) {
requestLayout();
}
}
public void removeAllTabs() {
mTabLayout.removeAllViews();
if (mTabSpinner != null) {
((TabAdapter) mTabSpinner.getAdapter()).notifyDataSetChanged();
}
if (mAllowCollapse) {
requestLayout();
}
}
public void removeTabAt(int position) {
mTabLayout.removeViewAt(position);
if (mTabSpinner != null) {
((TabAdapter) mTabSpinner.getAdapter()).notifyDataSetChanged();
}
if (mAllowCollapse) {
requestLayout();
}
}
@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
final boolean lockedExpanded = widthMode == MeasureSpec.EXACTLY;
setFillViewport(lockedExpanded);
final int childCount = mTabLayout.getChildCount();
if (childCount > 1 && (widthMode == MeasureSpec.EXACTLY || widthMode == MeasureSpec.AT_MOST)) {
if (childCount > 2) {
mMaxTabWidth = (int) (MeasureSpec.getSize(widthMeasureSpec) * 0.4f);
} else {
mMaxTabWidth = MeasureSpec.getSize(widthMeasureSpec) / 2;
}
} else {
mMaxTabWidth = -1;
}
heightMeasureSpec = MeasureSpec.makeMeasureSpec(mContentHeight, MeasureSpec.EXACTLY);
final boolean canCollapse = !lockedExpanded && mAllowCollapse;
if (canCollapse) {
// See if we should expand
mTabLayout.measure(MeasureSpec.UNSPECIFIED, heightMeasureSpec);
if (mTabLayout.getMeasuredWidth() > MeasureSpec.getSize(widthMeasureSpec)) {
performCollapse();
} else {
performExpand();
}
} else {
performExpand();
}
final int oldWidth = getMeasuredWidth();
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
final int newWidth = getMeasuredWidth();
if (lockedExpanded && oldWidth != newWidth) {
// Recenter the tab display if we're at a new (scrollable) size.
setTabSelected(mSelectedTabIndex);
}
}
private void addTab(int index, CharSequence text, int iconResId) {
final TabView tabView = new TabView(getContext());
tabView.mIndex = index;
tabView.setFocusable(true);
tabView.setOnClickListener(mTabClickListener);
tabView.setText(text);
if (iconResId != 0) {
tabView.setCompoundDrawablesWithIntrinsicBounds(iconResId, 0, 0, 0);
}
mTabLayout.addView(tabView, new LinearLayout.LayoutParams(0, MATCH_PARENT, 1));
}
public void addTab(ActionBar.Tab tab, boolean setSelected) {
TabView tabView = createTabView(tab, false);
mTabLayout.addView(tabView, new IcsLinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT, 1));
if (mTabSpinner != null) {
((TabAdapter) mTabSpinner.getAdapter()).notifyDataSetChanged();
}
if (setSelected) {
tabView.setSelected(true);
}
if (mAllowCollapse) {
requestLayout();
}
}
private void animateToTab(final int position) {
final View tabView = mTabLayout.getChildAt(position);
if (mTabSelector != null) {
removeCallbacks(mTabSelector);
}
mTabSelector =
new Runnable() {
public void run() {
final int scrollPos = tabView.getLeft() - (getWidth() - tabView.getWidth()) / 2;
smoothScrollTo(scrollPos, 0);
mTabSelector = null;
}
};
post(mTabSelector);
}
private void animateToIcon(final int position) {
final View iconView = mIconsLayout.getChildAt(position);
if (mIconSelector != null) {
removeCallbacks(mIconSelector);
}
mIconSelector =
new Runnable() {
public void run() {
final int scrollPos = iconView.getLeft() - (getWidth() - iconView.getWidth()) / 2;
smoothScrollTo(scrollPos, 0);
mIconSelector = null;
}
};
post(mIconSelector);
}
public void setNavigationMode(int mode) {
final int oldMode = mNavigationMode;
if (mode != oldMode) {
switch (oldMode) {
case ActionBar.NAVIGATION_MODE_LIST:
if (mListNavLayout != null) {
removeView(mListNavLayout);
}
break;
case ActionBar.NAVIGATION_MODE_TABS:
if (mTabScrollView != null && mIncludeTabs) {
removeView(mTabScrollView);
}
}
switch (mode) {
case ActionBar.NAVIGATION_MODE_LIST:
if (mSpinner == null) {
mSpinner = new IcsSpinner(mContext, null, R.attr.actionDropDownStyleABS);
mListNavLayout =
(IcsLinearLayout)
LayoutInflater.from(mContext)
.inflate(R.layout.abs__action_bar_tab_bar_view, null);
LinearLayout.LayoutParams params =
new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
params.gravity = Gravity.CENTER;
mListNavLayout.addView(mSpinner, params);
}
if (mSpinner.getAdapter() != mSpinnerAdapter) {
mSpinner.setAdapter(mSpinnerAdapter);
}
mSpinner.setOnItemSelectedListener(mNavItemSelectedListener);
addView(mListNavLayout);
break;
case ActionBar.NAVIGATION_MODE_TABS:
if (mTabScrollView != null && mIncludeTabs) {
addView(mTabScrollView);
}
break;
}
mNavigationMode = mode;
requestLayout();
}
}
@SuppressWarnings("MagicConstant")
private IcsLinearLayout findOrInitializeChildLayout(
final LinearLayout parentLayout, final int childIndex) {
IcsLinearLayout childLayout = (IcsLinearLayout) parentLayout.getChildAt(childIndex);
if (childLayout == null) {
childLayout = linearLayoutPool.get();
childLayout.setOrientation(LinearLayout.VERTICAL);
if (listView.isDebugging()) childLayout.setBackgroundColor(Color.parseColor("#837BF2"));
childLayout.setShowDividers(IcsLinearLayout.SHOW_DIVIDER_MIDDLE);
childLayout.setDividerDrawable(
context.getResources().getDrawable(R.drawable.item_divider_vertical));
childLayout.setLayoutParams(
new AbsListView.LayoutParams(
AbsListView.LayoutParams.WRAP_CONTENT, AbsListView.LayoutParams.MATCH_PARENT));
parentLayout.addView(childLayout);
}
return childLayout;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
final int childCount = getChildCount();
if (mIsCollapsable) {
int visibleChildren = 0;
for (int i = 0; i < childCount; i++) {
final View child = getChildAt(i);
if (child.getVisibility() != GONE
&& !(child == mMenuView && mMenuView.getChildCount() == 0)) {
visibleChildren++;
}
}
if (visibleChildren == 0) {
// No size for an empty action bar when collapsable.
setMeasuredDimension(0, 0);
mIsCollapsed = true;
return;
}
}
mIsCollapsed = false;
int widthMode = MeasureSpec.getMode(widthMeasureSpec);
if (widthMode != MeasureSpec.EXACTLY) {
throw new IllegalStateException(
getClass().getSimpleName()
+ " can only be used "
+ "with android:layout_width=\"match_parent\" (or fill_parent)");
}
int heightMode = MeasureSpec.getMode(heightMeasureSpec);
if (heightMode != MeasureSpec.AT_MOST) {
throw new IllegalStateException(
getClass().getSimpleName()
+ " can only be used "
+ "with android:layout_height=\"wrap_content\"");
}
int contentWidth = MeasureSpec.getSize(widthMeasureSpec);
int maxHeight = mContentHeight > 0 ? mContentHeight : MeasureSpec.getSize(heightMeasureSpec);
final int verticalPadding = getPaddingTop() + getPaddingBottom();
final int paddingLeft = getPaddingLeft();
final int paddingRight = getPaddingRight();
final int height = maxHeight - verticalPadding;
final int childSpecHeight = MeasureSpec.makeMeasureSpec(height, MeasureSpec.AT_MOST);
int availableWidth = contentWidth - paddingLeft - paddingRight;
int leftOfCenter = availableWidth / 2;
int rightOfCenter = leftOfCenter;
HomeView homeLayout = mExpandedActionView != null ? mExpandedHomeLayout : mHomeLayout;
if (homeLayout.getVisibility() != GONE) {
final ViewGroup.LayoutParams lp = homeLayout.getLayoutParams();
int homeWidthSpec;
if (lp.width < 0) {
homeWidthSpec = MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.AT_MOST);
} else {
homeWidthSpec = MeasureSpec.makeMeasureSpec(lp.width, MeasureSpec.EXACTLY);
}
homeLayout.measure(homeWidthSpec, MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY));
final int homeWidth = homeLayout.getMeasuredWidth() + homeLayout.getLeftOffset();
availableWidth = Math.max(0, availableWidth - homeWidth);
leftOfCenter = Math.max(0, availableWidth - homeWidth);
}
if (mMenuView != null && mMenuView.getParent() == this) {
availableWidth = measureChildView(mMenuView, availableWidth, childSpecHeight, 0);
rightOfCenter = Math.max(0, rightOfCenter - mMenuView.getMeasuredWidth());
}
if (mIndeterminateProgressView != null && mIndeterminateProgressView.getVisibility() != GONE) {
availableWidth =
measureChildView(mIndeterminateProgressView, availableWidth, childSpecHeight, 0);
rightOfCenter = Math.max(0, rightOfCenter - mIndeterminateProgressView.getMeasuredWidth());
}
final boolean showTitle =
mTitleLayout != null
&& mTitleLayout.getVisibility() != GONE
&& (mDisplayOptions & ActionBar.DISPLAY_SHOW_TITLE) != 0;
if (mExpandedActionView == null) {
switch (mNavigationMode) {
case ActionBar.NAVIGATION_MODE_LIST:
if (mListNavLayout != null) {
final int itemPaddingSize = showTitle ? mItemPadding * 2 : mItemPadding;
availableWidth = Math.max(0, availableWidth - itemPaddingSize);
leftOfCenter = Math.max(0, leftOfCenter - itemPaddingSize);
mListNavLayout.measure(
MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.AT_MOST),
MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY));
final int listNavWidth = mListNavLayout.getMeasuredWidth();
availableWidth = Math.max(0, availableWidth - listNavWidth);
leftOfCenter = Math.max(0, leftOfCenter - listNavWidth);
}
break;
case ActionBar.NAVIGATION_MODE_TABS:
if (mTabScrollView != null) {
final int itemPaddingSize = showTitle ? mItemPadding * 2 : mItemPadding;
availableWidth = Math.max(0, availableWidth - itemPaddingSize);
leftOfCenter = Math.max(0, leftOfCenter - itemPaddingSize);
mTabScrollView.measure(
MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.AT_MOST),
MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY));
final int tabWidth = mTabScrollView.getMeasuredWidth();
availableWidth = Math.max(0, availableWidth - tabWidth);
leftOfCenter = Math.max(0, leftOfCenter - tabWidth);
}
break;
}
}
View customView = null;
if (mExpandedActionView != null) {
customView = mExpandedActionView;
} else if ((mDisplayOptions & ActionBar.DISPLAY_SHOW_CUSTOM) != 0 && mCustomNavView != null) {
customView = mCustomNavView;
}
if (customView != null) {
final ViewGroup.LayoutParams lp = generateLayoutParams(customView.getLayoutParams());
final ActionBar.LayoutParams ablp =
lp instanceof ActionBar.LayoutParams ? (ActionBar.LayoutParams) lp : null;
int horizontalMargin = 0;
int verticalMargin = 0;
if (ablp != null) {
horizontalMargin = ablp.leftMargin + ablp.rightMargin;
verticalMargin = ablp.topMargin + ablp.bottomMargin;
}
// If the action bar is wrapping to its content height, don't allow a custom
// view to MATCH_PARENT.
int customNavHeightMode;
if (mContentHeight <= 0) {
customNavHeightMode = MeasureSpec.AT_MOST;
} else {
customNavHeightMode =
lp.height != LayoutParams.WRAP_CONTENT ? MeasureSpec.EXACTLY : MeasureSpec.AT_MOST;
}
final int customNavHeight =
Math.max(0, (lp.height >= 0 ? Math.min(lp.height, height) : height) - verticalMargin);
final int customNavWidthMode =
lp.width != LayoutParams.WRAP_CONTENT ? MeasureSpec.EXACTLY : MeasureSpec.AT_MOST;
int customNavWidth =
Math.max(
0,
(lp.width >= 0 ? Math.min(lp.width, availableWidth) : availableWidth)
- horizontalMargin);
final int hgrav =
(ablp != null ? ablp.gravity : DEFAULT_CUSTOM_GRAVITY) & Gravity.HORIZONTAL_GRAVITY_MASK;
// Centering a custom view is treated specially; we try to center within the whole
// action bar rather than in the available space.
if (hgrav == Gravity.CENTER_HORIZONTAL && lp.width == LayoutParams.MATCH_PARENT) {
customNavWidth = Math.min(leftOfCenter, rightOfCenter) * 2;
}
customView.measure(
MeasureSpec.makeMeasureSpec(customNavWidth, customNavWidthMode),
MeasureSpec.makeMeasureSpec(customNavHeight, customNavHeightMode));
availableWidth -= horizontalMargin + customView.getMeasuredWidth();
}
if (mExpandedActionView == null && showTitle) {
availableWidth =
measureChildView(
mTitleLayout,
availableWidth,
MeasureSpec.makeMeasureSpec(mContentHeight, MeasureSpec.EXACTLY),
0);
leftOfCenter = Math.max(0, leftOfCenter - mTitleLayout.getMeasuredWidth());
}
if (mContentHeight <= 0) {
int measuredHeight = 0;
for (int i = 0; i < childCount; i++) {
View v = getChildAt(i);
int paddedViewHeight = v.getMeasuredHeight() + verticalPadding;
if (paddedViewHeight > measuredHeight) {
measuredHeight = paddedViewHeight;
}
}
setMeasuredDimension(contentWidth, measuredHeight);
} else {
setMeasuredDimension(contentWidth, maxHeight);
}
if (mContextView != null) {
mContextView.setContentHeight(getMeasuredHeight());
}
if (mProgressView != null && mProgressView.getVisibility() != GONE) {
mProgressView.measure(
MeasureSpec.makeMeasureSpec(contentWidth - mProgressBarPadding * 2, MeasureSpec.EXACTLY),
MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST));
}
}
@SuppressWarnings("MagicConstant")
private IcsLinearLayout findOrInitializeLayout(final View convertView) {
IcsLinearLayout layout;
if (convertView == null || !(convertView instanceof IcsLinearLayout)) {
layout = new IcsLinearLayout(context, null);
if (listView.isDebugging()) layout.setBackgroundColor(Color.parseColor("#83F27B"));
layout.setShowDividers(IcsLinearLayout.SHOW_DIVIDER_MIDDLE);
layout.setDividerDrawable(
context.getResources().getDrawable(R.drawable.item_divider_horizontal));
layout.setLayoutParams(
new AbsListView.LayoutParams(
AbsListView.LayoutParams.MATCH_PARENT, AbsListView.LayoutParams.WRAP_CONTENT));
} else layout = (IcsLinearLayout) convertView;
// Clear all layout children before starting
for (int j = 0; j < layout.getChildCount(); j++) {
IcsLinearLayout tempChild = (IcsLinearLayout) layout.getChildAt(j);
linearLayoutPool.put(tempChild);
for (int k = 0; k < tempChild.getChildCount(); k++) viewPool.put(tempChild.getChildAt(k));
tempChild.removeAllViews();
}
layout.removeAllViews();
return layout;
}
