ActionBarOverlayLayout.java revision 3a3a6cfd8ec12208ca75c0d0d871d19d76c34194
13a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn/* 23a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * Copyright (C) 2012 The Android Open Source Project 33a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * 43a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * Licensed under the Apache License, Version 2.0 (the "License"); 53a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * you may not use this file except in compliance with the License. 63a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * You may obtain a copy of the License at 73a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * 83a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * http://www.apache.org/licenses/LICENSE-2.0 93a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * 103a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * Unless required by applicable law or agreed to in writing, software 113a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * distributed under the License is distributed on an "AS IS" BASIS, 123a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 133a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * See the License for the specific language governing permissions and 143a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * limitations under the License. 153a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn */ 163a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 173a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornpackage com.android.internal.widget; 183a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 193a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornimport com.android.internal.app.ActionBarImpl; 203a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 213a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornimport android.animation.LayoutTransition; 223a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornimport android.content.Context; 233a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornimport android.content.res.TypedArray; 243a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornimport android.graphics.Rect; 253a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornimport android.util.AttributeSet; 263a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornimport android.util.Log; 273a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornimport android.view.View; 283a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornimport android.view.ViewTreeObserver; 293a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornimport android.widget.FrameLayout; 303a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 313a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn/** 323a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * Special layout for the containing of an overlay action bar (and its 333a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * content) to correctly handle fitting system windows when the content 343a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn * has request that its layout ignore them. 353a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn */ 363a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackbornpublic class ActionBarOverlayLayout extends FrameLayout { 373a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private int mActionBarHeight; 383a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private ActionBarImpl mActionBar; 393a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private int mWindowVisibility = View.VISIBLE; 403a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private View mContent; 413a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private View mActionBarTop; 423a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private ActionBarContainer mContainerView; 433a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private ActionBarView mActionView; 443a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private View mActionBarBottom; 453a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private int mLastSystemUiVisibility; 463a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private final Rect mZeroRect = new Rect(0, 0, 0, 0); 473a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 483a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn static final int[] mActionBarSizeAttr = new int [] { 493a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn com.android.internal.R.attr.actionBarSize 503a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn }; 513a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 523a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn public ActionBarOverlayLayout(Context context) { 533a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn super(context); 543a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn init(context); 553a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 563a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 573a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn public ActionBarOverlayLayout(Context context, AttributeSet attrs) { 583a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn super(context, attrs); 593a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn init(context); 603a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 613a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 623a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private void init(Context context) { 633a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn TypedArray ta = getContext().getTheme().obtainStyledAttributes(mActionBarSizeAttr); 643a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn mActionBarHeight = ta.getDimensionPixelSize(0, 0); 653a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn ta.recycle(); 663a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 673a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 683a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn public void setActionBar(ActionBarImpl impl) { 693a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn mActionBar = impl; 703a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (getWindowToken() != null) { 713a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn // This is being initialized after being added to a window; 723a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn // make sure to update all state now. 733a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn mActionBar.setWindowVisibility(mWindowVisibility); 743a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (mLastSystemUiVisibility != 0) { 753a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn int newVis = mLastSystemUiVisibility; 763a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn onWindowSystemUiVisibilityChanged(newVis); 773a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn requestFitSystemWindows(); 783a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 793a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 803a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 813a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 823a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn @Override 833a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn public void onWindowSystemUiVisibilityChanged(int visible) { 843a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn super.onWindowSystemUiVisibilityChanged(visible); 853a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn pullChildren(); 863a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn final int diff = mLastSystemUiVisibility ^ visible; 873a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn mLastSystemUiVisibility = visible; 883a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn final boolean barVisible = (visible&SYSTEM_UI_FLAG_FULLSCREEN) == 0; 893a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn final boolean wasVisible = mActionBar != null ? mActionBar.isShowing() : true; 903a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (barVisible != wasVisible || (diff&SYSTEM_UI_FLAG_LAYOUT_STABLE) != 0) { 913a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (mActionBar != null) { 923a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (barVisible) mActionBar.show(true, true); 933a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn else mActionBar.hide(true); 943a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn requestFitSystemWindows(); 953a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 963a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 973a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 983a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 993a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn @Override 1003a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn protected void onWindowVisibilityChanged(int visibility) { 1013a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn super.onWindowVisibilityChanged(visibility); 1023a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn mWindowVisibility = visibility; 1033a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (mActionBar != null) { 1043a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn mActionBar.setWindowVisibility(visibility); 1053a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1063a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1073a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1083a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn private boolean applyInsets(View view, Rect insets, boolean left, boolean top, 1093a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn boolean bottom, boolean right) { 1103a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn boolean changed = false; 1113a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams)view.getLayoutParams(); 1123a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (left && lp.leftMargin != insets.left) { 1133a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn changed = true; 1143a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn lp.leftMargin = insets.left; 1153a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1163a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (top && lp.topMargin != insets.top) { 1173a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn changed = true; 1183a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn lp.topMargin = insets.top; 1193a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1203a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (right && lp.rightMargin != insets.right) { 1213a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn changed = true; 1223a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn lp.rightMargin = insets.right; 1233a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1243a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (bottom && lp.bottomMargin != insets.bottom) { 1253a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn changed = true; 1263a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn lp.bottomMargin = insets.bottom; 1273a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1283a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn return changed; 1293a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1303a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1313a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn @Override 1323a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn protected boolean fitSystemWindows(Rect insets) { 1333a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn pullChildren(); 1343a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1353a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn final int vis = getWindowSystemUiVisibility(); 1363a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn final boolean stable = (vis & SYSTEM_UI_FLAG_LAYOUT_STABLE) != 0; 1373a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1383a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn // The top and bottom action bars are always within the content area. 1393a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn boolean changed = applyInsets(mActionBarTop, insets, true, true, false, true); 1403a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn changed |= applyInsets(mActionBarBottom, insets, true, false, true, true); 1413a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1423a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn // If the window has not requested system UI layout flags, we need to 1433a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn // make sure its content is not being covered by system UI... though it 1443a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn // will still be covered by the action bar since they have requested it to 1453a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn // overlay. 1463a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if ((vis & SYSTEM_UI_LAYOUT_FLAGS) == 0) { 1473a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn changed |= applyInsets(mContent, insets, true, true, true, true); 1483a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn // The insets are now consumed. 1493a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn insets.set(0, 0, 0, 0); 1503a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } else { 1513a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn changed |= applyInsets(mContent, mZeroRect, true, true, true, true); 1523a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1533a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1543a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1553a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (stable || mActionBarTop.getVisibility() == VISIBLE) { 1563a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn // The action bar creates additional insets for its content to use. 1573a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn insets.top += mActionBarHeight; 1583a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1593a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1603a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (mActionBar != null && mActionBar.hasNonEmbeddedTabs()) { 1613a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn View tabs = mContainerView.getTabContainer(); 1623a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (stable || (tabs != null && tabs.getVisibility() == VISIBLE)) { 1633a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn // If tabs are not embedded, adjust insets to account for them. 1643a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn insets.top += mActionBarHeight; 1653a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1663a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1673a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1683a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (mActionView.isSplitActionBar()) { 1693a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (stable || (mActionBarBottom != null 1703a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn && mActionBarBottom.getVisibility() == VISIBLE)) { 1713a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn // If action bar is split, adjust buttom insets for it. 1723a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn insets.bottom += mActionBarHeight; 1733a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1743a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1753a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1763a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (changed) { 1773a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn requestLayout(); 1783a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1793a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1803a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn return super.fitSystemWindows(insets); 1813a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1823a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn 1833a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn void pullChildren() { 1843a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn if (mContent == null) { 1853a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn mContent = findViewById(com.android.internal.R.id.content); 1863a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn mActionBarTop = findViewById(com.android.internal.R.id.top_action_bar); 1873a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn mContainerView = (ActionBarContainer)findViewById( 1883a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn com.android.internal.R.id.action_bar_container); 1893a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn mActionView = (ActionBarView) findViewById(com.android.internal.R.id.action_bar); 1903a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn mActionBarBottom = findViewById(com.android.internal.R.id.split_action_bar); 1913a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1923a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn } 1933a3a6cfd8ec12208ca75c0d0d871d19d76c34194Dianne Hackborn} 194