Action bar tab layout (f8ac6b73) · Commits · e / os / android_frameworks_base

core/java/android/app/Activity.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -1398,6 +1398,10 @@ public class Activity extends ContextThemeWrapper
		public void onConfigurationChanged(Configuration newConfig) {
		mCalled = true;

		if (mActionBar != null) {
		mActionBar.onConfigurationChanged(newConfig);
		}

		mFragments.dispatchConfigurationChanged(newConfig);

		if (mWindow != null) {

core/java/android/widget/LinearLayout.java

+52 −2

Original line number	Diff line number	Diff line
		@@ -696,7 +696,8 @@ public class LinearLayout extends ViewGroup {
		mTotalLength += mDividerHeight;
		}

		if (useLargestChild && heightMode == MeasureSpec.AT_MOST) {
		if (useLargestChild &&
		(heightMode == MeasureSpec.AT_MOST \|\| heightMode == MeasureSpec.UNSPECIFIED)) {
		mTotalLength = 0;

		for (int i = 0; i < count; ++i) {
		@@ -809,6 +810,31 @@ public class LinearLayout extends ViewGroup {
		} else {
		alternativeMaxWidth = Math.max(alternativeMaxWidth,
		weightedMaxWidth);


		// We have no limit, so make all weighted views as tall as the largest child.
		// Children will have already been measured once.
		if (useLargestChild && widthMode == MeasureSpec.UNSPECIFIED) {
		for (int i = 0; i < count; i++) {
		final View child = getVirtualChildAt(i);

		if (child == null \|\| child.getVisibility() == View.GONE) {
		continue;
		}

		final LinearLayout.LayoutParams lp =
		(LinearLayout.LayoutParams) child.getLayoutParams();

		float childExtra = lp.weight;
		if (childExtra > 0) {
		child.measure(
		MeasureSpec.makeMeasureSpec(child.getMeasuredWidth(),
		MeasureSpec.EXACTLY),
		MeasureSpec.makeMeasureSpec(largestChildHeight,
		MeasureSpec.EXACTLY));
		}
		}
		}
		}

		if (!allFillParent && widthMode != MeasureSpec.EXACTLY) {
		@@ -1044,7 +1070,8 @@ public class LinearLayout extends ViewGroup {
		maxHeight = Math.max(maxHeight, ascent + descent);
		}

		if (useLargestChild && widthMode == MeasureSpec.AT_MOST) {
		if (useLargestChild &&
		(widthMode == MeasureSpec.AT_MOST \|\| widthMode == MeasureSpec.UNSPECIFIED)) {
		mTotalLength = 0;

		for (int i = 0; i < count; ++i) {
		@@ -1200,6 +1227,29 @@ public class LinearLayout extends ViewGroup {
		}
		} else {
		alternativeMaxHeight = Math.max(alternativeMaxHeight, weightedMaxHeight);

		// We have no limit, so make all weighted views as wide as the largest child.
		// Children will have already been measured once.
		if (useLargestChild && widthMode == MeasureSpec.UNSPECIFIED) {
		for (int i = 0; i < count; i++) {
		final View child = getVirtualChildAt(i);

		if (child == null \|\| child.getVisibility() == View.GONE) {
		continue;
		}

		final LinearLayout.LayoutParams lp =
		(LinearLayout.LayoutParams) child.getLayoutParams();

		float childExtra = lp.weight;
		if (childExtra > 0) {
		child.measure(
		MeasureSpec.makeMeasureSpec(largestChildWidth, MeasureSpec.EXACTLY),
		MeasureSpec.makeMeasureSpec(child.getMeasuredHeight(),
		MeasureSpec.EXACTLY));
		}
		}
		}
		}

		if (!allFillParent && heightMode != MeasureSpec.EXACTLY) {

core/java/com/android/internal/app/ActionBarImpl.java

+78 −25

Original line number	Diff line number	Diff line
		@@ -16,25 +16,27 @@

		package com.android.internal.app;

		import com.android.internal.R;
		import com.android.internal.view.menu.MenuBuilder;
		import com.android.internal.view.menu.MenuPopupHelper;
		import com.android.internal.view.menu.SubMenuBuilder;
		import com.android.internal.widget.AbsActionBarView;
		import com.android.internal.widget.ActionBarContainer;
		import com.android.internal.widget.ActionBarContextView;
		import com.android.internal.widget.ActionBarView;
		import com.android.internal.widget.ScrollingTabContainerView;

		import android.animation.Animator;
		import android.animation.Animator.AnimatorListener;
		import android.animation.AnimatorListenerAdapter;
		import android.animation.AnimatorSet;
		import android.animation.ObjectAnimator;
		import android.animation.TimeInterpolator;
		import android.app.ActionBar;
		import android.app.Activity;
		import android.app.Dialog;
		import android.app.FragmentTransaction;
		import android.content.Context;
		import android.content.res.Configuration;
		import android.content.res.TypedArray;
		import android.graphics.drawable.Drawable;
		import android.os.Handler;
		import android.view.ActionMode;
		@@ -43,10 +45,7 @@ import android.view.Menu;
		import android.view.MenuInflater;
		import android.view.MenuItem;
		import android.view.View;
		import android.view.ViewGroup;
		import android.view.Window;
		import android.view.animation.DecelerateInterpolator;
		import android.widget.HorizontalScrollView;
		import android.widget.SpinnerAdapter;

		import java.lang.ref.WeakReference;
		@@ -71,7 +70,7 @@ public class ActionBarImpl extends ActionBar {
		private ActionBarContextView mContextView;
		private ActionBarContainer mSplitView;
		private View mContentView;
		private ViewGroup mExternalTabView;
		private ScrollingTabContainerView mTabScrollView;

		private ArrayList<TabImpl> mTabs = new ArrayList<TabImpl>();

		@@ -90,16 +89,17 @@ public class ActionBarImpl extends ActionBar {
		private static final int INVALID_POSITION = -1;

		private int mContextDisplayMode;
		private boolean mHasEmbeddedTabs;
		private int mContentHeight;

		final Handler mHandler = new Handler();
		Runnable mTabSelector;

		private Animator mCurrentShowAnim;
		private Animator mCurrentModeAnim;
		private boolean mShowHideAnimationEnabled;
		boolean mWasHiddenBeforeMode;

		private static final TimeInterpolator sFadeOutInterpolator = new DecelerateInterpolator();

		final AnimatorListener mHideListener = new AnimatorListenerAdapter() {
		@Override
		public void onAnimationEnd(Animator animation) {
		@@ -150,21 +150,59 @@ public class ActionBarImpl extends ActionBar {
		"with a compatible window decor layout");
		}

		mHasEmbeddedTabs = mContext.getResources().getBoolean(
		com.android.internal.R.bool.action_bar_embed_tabs);
		mActionView.setContextView(mContextView);
		mContextDisplayMode = mActionView.isSplitActionBar() ?
		CONTEXT_DISPLAY_SPLIT : CONTEXT_DISPLAY_NORMAL;

		if (!mActionView.hasEmbeddedTabs()) {
		HorizontalScrollView tabScroller = new HorizontalScrollView(mContext);
		ViewGroup tabContainer = mActionView.createTabContainer();
		tabScroller.setHorizontalFadingEdgeEnabled(true);
		tabScroller.addView(tabContainer);
		TypedArray a = mContext.obtainStyledAttributes(null, R.styleable.ActionBar);
		mContentHeight = a.getLayoutDimension(R.styleable.ActionBar_height, 0);
		a.recycle();
		}

		public void onConfigurationChanged(Configuration newConfig) {
		mHasEmbeddedTabs = mContext.getResources().getBoolean(
		com.android.internal.R.bool.action_bar_embed_tabs);

		// Switch tab layout configuration if needed
		if (!mHasEmbeddedTabs) {
		mActionView.setEmbeddedTabView(null);
		mContainerView.setTabContainer(mTabScrollView);
		} else {
		mContainerView.setTabContainer(null);
		if (mTabScrollView != null) {
		mTabScrollView.setVisibility(View.VISIBLE);
		}
		mActionView.setEmbeddedTabView(mTabScrollView);
		}

		TypedArray a = mContext.obtainStyledAttributes(null, R.styleable.ActionBar);
		mContentHeight = a.getLayoutDimension(R.styleable.ActionBar_height, 0);
		a.recycle();

		if (mTabScrollView != null) {
		mTabScrollView.getLayoutParams().height = mContentHeight;
		mTabScrollView.requestLayout();
		}
		}

		private void ensureTabsExist() {
		if (mTabScrollView != null) {
		return;
		}

		ScrollingTabContainerView tabScroller = mActionView.createTabContainer();

		if (mHasEmbeddedTabs) {
		tabScroller.setVisibility(View.VISIBLE);
		mActionView.setEmbeddedTabView(tabScroller);
		} else {
		tabScroller.setVisibility(getNavigationMode() == NAVIGATION_MODE_TABS ?
		View.VISIBLE : View.GONE);
		mActionView.setExternalTabLayout(tabContainer);
		mContainerView.setTabContainer(tabScroller);
		mExternalTabView = tabScroller;
		}
		mTabScrollView = tabScroller;
		}

		/**
		@@ -269,7 +307,7 @@ public class ActionBarImpl extends ActionBar {
		selectTab(null);
		}
		mTabs.clear();
		mActionView.removeAllTabs();
		mTabScrollView.removeAllTabs();
		mSavedTabPosition = INVALID_POSITION;
		}

		@@ -365,7 +403,8 @@ public class ActionBarImpl extends ActionBar {

		@Override
		public void addTab(Tab tab, boolean setSelected) {
		mActionView.addTab(tab, setSelected);
		ensureTabsExist();
		mTabScrollView.addTab(tab, setSelected);
		configureTab(tab, mTabs.size());
		if (setSelected) {
		selectTab(tab);
		@@ -374,7 +413,8 @@ public class ActionBarImpl extends ActionBar {

		@Override
		public void addTab(Tab tab, int position, boolean setSelected) {
		mActionView.addTab(tab, position, setSelected);
		ensureTabsExist();
		mTabScrollView.addTab(tab, position, setSelected);
		configureTab(tab, position);
		if (setSelected) {
		selectTab(tab);
		@@ -393,9 +433,14 @@ public class ActionBarImpl extends ActionBar {

		@Override
		public void removeTabAt(int position) {
		if (mTabScrollView == null) {
		// No tabs around to remove
		return;
		}

		int selectedTabPosition = mSelectedTab != null
		? mSelectedTab.getPosition() : mSavedTabPosition;
		mActionView.removeTabAt(position);
		mTabScrollView.removeTabAt(position);
		TabImpl removedTab = mTabs.remove(position);
		if (removedTab != null) {
		removedTab.setPosition(-1);
		@@ -424,9 +469,10 @@ public class ActionBarImpl extends ActionBar {
		if (mSelectedTab == tab) {
		if (mSelectedTab != null) {
		mSelectedTab.getCallback().onTabReselected(mSelectedTab, trans);
		mTabScrollView.animateToTab(tab.getPosition());
		}
		} else {
		mActionView.setTabSelected(tab != null ? tab.getPosition() : Tab.INVALID_POSITION);
		mTabScrollView.setTabSelected(tab != null ? tab.getPosition() : Tab.INVALID_POSITION);
		if (mSelectedTab != null) {
		mSelectedTab.getCallback().onTabUnselected(mSelectedTab, trans);
		}
		@@ -705,7 +751,9 @@ public class ActionBarImpl extends ActionBar {
		@Override
		public Tab setCustomView(View view) {
		mCustomView = view;
		if (mPosition >= 0) mActionView.updateTab(mPosition);
		if (mPosition >= 0) {
		mTabScrollView.updateTab(mPosition);
		}
		return this;
		}

		@@ -736,7 +784,9 @@ public class ActionBarImpl extends ActionBar {
		@Override
		public Tab setIcon(Drawable icon) {
		mIcon = icon;
		if (mPosition >= 0) mActionView.updateTab(mPosition);
		if (mPosition >= 0) {
		mTabScrollView.updateTab(mPosition);
		}
		return this;
		}

		@@ -748,7 +798,9 @@ public class ActionBarImpl extends ActionBar {
		@Override
		public Tab setText(CharSequence text) {
		mText = text;
		if (mPosition >= 0) mActionView.updateTab(mPosition);
		if (mPosition >= 0) {
		mTabScrollView.updateTab(mPosition);
		}
		return this;
		}

		@@ -818,15 +870,16 @@ public class ActionBarImpl extends ActionBar {
		mSavedTabPosition = getSelectedNavigationIndex();
		selectTab(null);
		if (!mActionView.hasEmbeddedTabs()) {
		mExternalTabView.setVisibility(View.GONE);
		mTabScrollView.setVisibility(View.GONE);
		}
		break;
		}
		mActionView.setNavigationMode(mode);
		switch (mode) {
		case NAVIGATION_MODE_TABS:
		ensureTabsExist();
		if (!mActionView.hasEmbeddedTabs()) {
		mExternalTabView.setVisibility(View.VISIBLE);
		mTabScrollView.setVisibility(View.VISIBLE);
		}
		if (mSavedTabPosition != INVALID_POSITION) {
		setSelectedNavigationItem(mSavedTabPosition);

core/java/com/android/internal/widget/ActionBarView.java

+29 −171

Original line number	Diff line number	Diff line
		@@ -78,7 +78,7 @@ public class ActionBarView extends AbsActionBarView {

		private static final int DEFAULT_CUSTOM_GRAVITY = Gravity.LEFT \| Gravity.CENTER_VERTICAL;

		private final int mContentHeight;
		private int mContentHeight;

		private int mNavigationMode;
		private int mDisplayOptions = ActionBar.DISPLAY_SHOW_HOME \| ActionBar.DISPLAY_HOME_AS_UP;
		@@ -95,8 +95,7 @@ public class ActionBarView extends AbsActionBarView {
		private TextView mSubtitleView;
		private Spinner mSpinner;
		private LinearLayout mListNavLayout;
		private HorizontalScrollView mTabScrollView;
		private ViewGroup mTabLayout;
		private ScrollingTabContainerView mTabScrollView;
		private View mCustomNavView;
		private ProgressBar mProgressView;
		private ProgressBar mIndeterminateProgressView;
		@@ -122,6 +121,8 @@ public class ActionBarView extends AbsActionBarView {
		private SpinnerAdapter mSpinnerAdapter;
		private OnNavigationListener mCallback;

		private Runnable mTabSelector;

		private final AdapterView.OnItemSelectedListener mNavItemSelectedListener =
		new AdapterView.OnItemSelectedListener() {
		public void onItemSelected(AdapterView parent, View view, int position, long id) {
		@@ -199,8 +200,6 @@ public class ActionBarView extends AbsActionBarView {
		mProgressBarPadding = a.getDimensionPixelOffset(R.styleable.ActionBar_progressBarPadding, 0);
		mItemPadding = a.getDimensionPixelOffset(R.styleable.ActionBar_itemPadding, 0);

		mIncludeTabs = a.getBoolean(R.styleable.ActionBar_embeddedTabs, true);

		setDisplayOptions(a.getInt(R.styleable.ActionBar_displayOptions, DISPLAY_DEFAULT));

		final int customNavId = a.getResourceId(R.styleable.ActionBar_customNavigationLayout, 0);
		@@ -228,6 +227,12 @@ public class ActionBarView extends AbsActionBarView {
		mHomeLayout.setFocusable(true);
		}

		@Override
		public void onDetachedFromWindow() {
		super.onDetachedFromWindow();
		removeCallbacks(mTabSelector);
		}

		@Override
		public boolean shouldDelayChildPressedState() {
		return false;
		@@ -247,6 +252,11 @@ public class ActionBarView extends AbsActionBarView {
		addView(mIndeterminateProgressView);
		}

		public void setContentHeight(int height) {
		mContentHeight = height;
		requestLayout();
		}

		public void setSplitActionBar(boolean splitActionBar) {
		if (mSplitActionBar != splitActionBar) {
		if (mMenuView != null) {
		@@ -271,8 +281,9 @@ public class ActionBarView extends AbsActionBarView {
		return mIncludeTabs;
		}

		public void setExternalTabLayout(ViewGroup tabLayout) {
		mTabLayout = tabLayout;
		public void setEmbeddedTabView(ScrollingTabContainerView tabs) {
		mTabScrollView = tabs;
		mIncludeTabs = tabs != null;
		}

		public void setCallback(OnNavigationListener callback) {
		@@ -489,7 +500,7 @@ public class ActionBarView extends AbsActionBarView {
		}
		break;
		case ActionBar.NAVIGATION_MODE_TABS:
		if (mTabScrollView != null) {
		if (mTabScrollView != null && mIncludeTabs) {
		removeView(mTabScrollView);
		}
		}
		@@ -513,8 +524,7 @@ public class ActionBarView extends AbsActionBarView {
		addView(mListNavLayout);
		break;
		case ActionBar.NAVIGATION_MODE_TABS:
		ensureTabsExist();
		if (mTabScrollView != null) {
		if (mTabScrollView != null && mIncludeTabs) {
		addView(mTabScrollView);
		}
		break;
		@@ -524,23 +534,16 @@ public class ActionBarView extends AbsActionBarView {
		}
		}

		private void ensureTabsExist() {
		if (!mIncludeTabs) return;

		if (mTabScrollView == null) {
		mTabScrollView = new HorizontalScrollView(getContext());
		mTabScrollView.setHorizontalFadingEdgeEnabled(true);
		mTabLayout = createTabContainer();
		mTabScrollView.addView(mTabLayout);
		}
		}

		public ViewGroup createTabContainer() {
		ViewGroup result = new LinearLayout(getContext(), null,
		public ScrollingTabContainerView createTabContainer() {
		final LinearLayout tabLayout = new LinearLayout(getContext(), null,
		com.android.internal.R.attr.actionBarTabBarStyle);
		result.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
		mContentHeight));
		return result;
		tabLayout.setMeasureWithLargestChildEnabled(true);
		tabLayout.setLayoutParams(new LinearLayout.LayoutParams(
		LinearLayout.LayoutParams.WRAP_CONTENT, mContentHeight));

		final ScrollingTabContainerView scroller = new ScrollingTabContainerView(mContext);
		scroller.setTabLayout(tabLayout);
		return scroller;
		}

		public void setDropdownAdapter(SpinnerAdapter adapter) {
		@@ -574,51 +577,6 @@ public class ActionBarView extends AbsActionBarView {
		return mDisplayOptions;
		}

		private TabView createTabView(ActionBar.Tab tab) {
		final TabView tabView = new TabView(getContext(), tab);
		tabView.setFocusable(true);

		if (mTabClickListener == null) {
		mTabClickListener = new TabClickListener();
		}
		tabView.setOnClickListener(mTabClickListener);
		return tabView;
		}

		public void addTab(ActionBar.Tab tab, boolean setSelected) {
		ensureTabsExist();
		View tabView = createTabView(tab);
		mTabLayout.addView(tabView);
		if (setSelected) {
		tabView.setSelected(true);
		}
		}

		public void addTab(ActionBar.Tab tab, int position, boolean setSelected) {
		ensureTabsExist();
		final TabView tabView = createTabView(tab);
		mTabLayout.addView(tabView, position);
		if (setSelected) {
		tabView.setSelected(true);
		}
		}

		public void updateTab(int position) {
		((TabView) mTabLayout.getChildAt(position)).update();
		}

		public void removeTabAt(int position) {
		if (mTabLayout != null) {
		mTabLayout.removeViewAt(position);
		}
		}

		public void removeAllTabs() {
		if (mTabLayout != null) {
		mTabLayout.removeAllViews();
		}
		}

		@Override
		protected LayoutParams generateDefaultLayoutParams() {
		// Used by custom nav views if they don't supply layout params. Everything else
		@@ -667,15 +625,6 @@ public class ActionBarView extends AbsActionBarView {
		addView(mTitleLayout);
		}

		public void setTabSelected(int position) {
		ensureTabsExist();
		final int tabCount = mTabLayout.getChildCount();
		for (int i = 0; i < tabCount; i++) {
		final View child = mTabLayout.getChildAt(i);
		child.setSelected(i == position);
		}
		}

		public void setContextView(ActionBarContextView view) {
		mContextView = view;
		}
		@@ -948,97 +897,6 @@ public class ActionBarView extends AbsActionBarView {
		}
		}

		private static class TabView extends LinearLayout {
		private ActionBar.Tab mTab;
		private TextView mTextView;
		private ImageView mIconView;
		private View mCustomView;

		public TabView(Context context, ActionBar.Tab tab) {
		super(context, null, com.android.internal.R.attr.actionBarTabStyle);
		mTab = tab;

		update();

		setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
		LayoutParams.MATCH_PARENT, 1));
		}

		public void update() {
		final ActionBar.Tab tab = mTab;
		final View custom = tab.getCustomView();
		if (custom != null) {
		addView(custom);
		mCustomView = custom;
		if (mTextView != null) mTextView.setVisibility(GONE);
		if (mIconView != null) {
		mIconView.setVisibility(GONE);
		mIconView.setImageDrawable(null);
		}
		} else {
		if (mCustomView != null) {
		removeView(mCustomView);
		mCustomView = null;
		}

		final Drawable icon = tab.getIcon();
		final CharSequence text = tab.getText();

		if (icon != null) {
		if (mIconView == null) {
		ImageView iconView = new ImageView(getContext());
		LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT,
		LayoutParams.WRAP_CONTENT);
		lp.gravity = Gravity.CENTER_VERTICAL;
		iconView.setLayoutParams(lp);
		addView(iconView, 0);
		mIconView = iconView;
		}
		mIconView.setImageDrawable(icon);
		mIconView.setVisibility(VISIBLE);
		} else if (mIconView != null) {
		mIconView.setVisibility(GONE);
		mIconView.setImageDrawable(null);
		}

		if (text != null) {
		if (mTextView == null) {
		TextView textView = new TextView(getContext(), null,
		com.android.internal.R.attr.actionBarTabTextStyle);
		textView.setSingleLine();
		textView.setEllipsize(TruncateAt.END);
		LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT,
		LayoutParams.WRAP_CONTENT);
		lp.gravity = Gravity.CENTER_VERTICAL;
		textView.setLayoutParams(lp);
		addView(textView);
		mTextView = textView;
		}
		mTextView.setText(text);
		mTextView.setVisibility(VISIBLE);
		} else {
		mTextView.setVisibility(GONE);
		}
		}
		}

		public ActionBar.Tab getTab() {
		return mTab;
		}
		}

		private class TabClickListener implements OnClickListener {
		public void onClick(View view) {
		TabView tabView = (TabView) view;
		tabView.getTab().select();
		final int tabCount = mTabLayout.getChildCount();
		for (int i = 0; i < tabCount; i++) {
		final View child = mTabLayout.getChildAt(i);
		child.setSelected(child == view);
		}
		}
		}

		private static class HomeView extends FrameLayout {
		private View mUpView;
		private View mIconView;

core/java/com/android/internal/widget/ScrollingTabContainerView.java

0 → 100644

+261 −0

File added.

Preview size limit exceeded, changes collapsed.