DrawerLayout.java revision 09c38625b5400dcda3d872dbe865c867cc02e5eb
11d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell/* 21d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Copyright (C) 2013 The Android Open Source Project 31d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 41d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Licensed under the Apache License, Version 2.0 (the "License"); 51d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * you may not use this file except in compliance with the License. 61d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * You may obtain a copy of the License at 71d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 81d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * http://www.apache.org/licenses/LICENSE-2.0 91d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 101d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Unless required by applicable law or agreed to in writing, software 111d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * distributed under the License is distributed on an "AS IS" BASIS, 121d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 131d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * See the License for the specific language governing permissions and 141d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * limitations under the License. 151d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 161d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 171d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 181d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellpackage android.support.v4.widget; 191d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 201d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.content.Context; 211d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.content.res.TypedArray; 221d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.graphics.Canvas; 231d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.graphics.Paint; 24b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powellimport android.graphics.PixelFormat; 25b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powellimport android.graphics.drawable.Drawable; 2657902cff6c54c245feea589b06d12dba8f1a2a24Adam Powellimport android.os.Parcel; 2757902cff6c54c245feea589b06d12dba8f1a2a24Adam Powellimport android.os.Parcelable; 28cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powellimport android.os.SystemClock; 291d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.support.v4.view.GravityCompat; 30791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powellimport android.support.v4.view.KeyEventCompat; 311d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.support.v4.view.MotionEventCompat; 321d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.support.v4.view.ViewCompat; 331d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.util.AttributeSet; 341d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.view.Gravity; 35791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powellimport android.view.KeyEvent; 361d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.view.MotionEvent; 371d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.view.View; 381d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellimport android.view.ViewGroup; 391d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 401d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell/** 411d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * DrawerLayout acts as a top-level container for window content that allows for 421d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * interactive "drawer" views to be pulled out from the edge of the window. 431d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 441d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * <p>Drawer positioning and layout is controlled using the <code>android:layout_gravity</code> 4509c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * attribute on child views corresponding to which side of the view you want the drawer 4609c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * to emerge from: left or right. (Or start/end on platform versions that support layout direction.) 4709c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * </p> 4809c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * 4909c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * <p>To use a DrawerLayout, position your primary content view as the first child with 5009c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * a width and height of <code>match_parent</code>. Add drawers as child views after the main 5109c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * content view and set the <code>layout_gravity</code> appropriately. Drawers commonly use 5209c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * <code>match_parent</code> for height with a fixed width.</p> 5309c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * 5409c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * <p>{@link DrawerListener} can be used to monitor the state and motion of drawer views. 5509c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * Avoid performing expensive operations such as layout during animation as it can cause 5609c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * stuttering; try to perform expensive operations during the {@link #STATE_IDLE} state. 5709c38625b5400dcda3d872dbe865c867cc02e5ebAdam Powell * {@link SimpleDrawerListener} offers default/no-op implementations of each callback method.</p> 581d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 591d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * <p>As per the Android Design guide, any drawers positioned to the left/start should 601d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * always contain content for navigating around the application, whereas any drawers 611d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * positioned to the right/end should always contain actions to take on the current content. 621d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * This preserves the same navigation left, actions right structure present in the Action Bar 631d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * and elsewhere.</p> 641d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 651d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powellpublic class DrawerLayout extends ViewGroup { 661d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private static final String TAG = "DrawerLayout"; 671d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 681d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 691d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Indicates that any drawers are in an idle, settled state. No animation is in progress. 701d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 711d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public static final int STATE_IDLE = ViewDragHelper.STATE_IDLE; 721d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 731d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 741d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Indicates that a drawer is currently being dragged by the user. 751d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 761d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public static final int STATE_DRAGGING = ViewDragHelper.STATE_DRAGGING; 771d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 781d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 791d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Indicates that a drawer is in the process of settling to a final position. 801d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 811d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public static final int STATE_SETTLING = ViewDragHelper.STATE_SETTLING; 821d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 830492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell /** 840492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * The drawer is unlocked. 850492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell */ 860492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell public static final int LOCK_MODE_UNLOCKED = 0; 870492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell 880492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell /** 890492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * The drawer is locked closed. The user may not open it, though 900492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * the app may open it programmatically. 910492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell */ 920492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell public static final int LOCK_MODE_LOCKED_CLOSED = 1; 930492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell 940492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell /** 950492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * The drawer is locked open. The user may not close it, though the app 960492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * may close it programmatically. 970492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell */ 980492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell public static final int LOCK_MODE_LOCKED_OPEN = 2; 990492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell 1001d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private static final int MIN_DRAWER_MARGIN = 64; // dp 1011d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 1021d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private static final int DEFAULT_SCRIM_COLOR = 0x99000000; 1031d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 104ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell /** 1051732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell * Length of time to delay before peeking the drawer. 1061732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell */ 1071732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell private static final int PEEK_DELAY = 160; // ms 1081732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell 1091732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell /** 110ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell * Experimental feature. 111ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell */ 112ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell private static final boolean ALLOW_EDGE_LOCK = false; 113ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell 1141d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private static final int[] LAYOUT_ATTRS = new int[] { 1151d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell android.R.attr.layout_gravity 1161d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell }; 1171d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 1181d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private int mMinDrawerMargin; 1191d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 1201d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private int mScrimColor = DEFAULT_SCRIM_COLOR; 1211d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private float mScrimOpacity; 1221d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private Paint mScrimPaint = new Paint(); 1231d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 1241d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private final ViewDragHelper mLeftDragger; 1251d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private final ViewDragHelper mRightDragger; 1261732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell private final ViewDragCallback mLeftCallback; 1271732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell private final ViewDragCallback mRightCallback; 1281d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private int mDrawerState; 129b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell private boolean mInLayout; 13057902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell private boolean mFirstLayout = true; 1310492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell private int mLockModeLeft; 1320492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell private int mLockModeRight; 1331732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell private boolean mDisallowInterceptRequested; 134cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell private boolean mChildrenCanceledTouch; 1351d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 1361d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private DrawerListener mListener; 1371d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 1381d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private float mInitialMotionX; 1391d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private float mInitialMotionY; 1401d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 141b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell private Drawable mShadowLeft; 142b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell private Drawable mShadowRight; 143b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 1441d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 1451d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Listener for monitoring events about drawers. 1461d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 1471d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public interface DrawerListener { 1481d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 1491d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Called when a drawer's position changes. 1501d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @param drawerView The child view that was moved 1511d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @param slideOffset The new offset of this drawer within its range, from 0-1 1521d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 1531d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void onDrawerSlide(View drawerView, float slideOffset); 1541d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 1551d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 1561d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Called when a drawer has settled in a completely open state. 1571d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * The drawer is interactive at this point. 1581d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 1591d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @param drawerView Drawer view that is now open 1601d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 1611d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void onDrawerOpened(View drawerView); 1621d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 1631d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 1641d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Called when a drawer has settled in a completely closed state. 1651d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 1661d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @param drawerView Drawer view that is now closed 1671d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 1681d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void onDrawerClosed(View drawerView); 1691d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 1701d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 1711d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Called when the drawer motion state changes. The new state will 1721d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * be one of {@link #STATE_IDLE}, {@link #STATE_DRAGGING} or {@link #STATE_SETTLING}. 1731d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 1741d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @param newState The new drawer motion state 1751d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 1761d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void onDrawerStateChanged(int newState); 1771d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 1781d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 179b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell /** 180b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * Stub/no-op implementations of all methods of {@link DrawerListener}. 181b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * Override this if you only care about a few of the available callback methods. 182b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell */ 183b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell public static abstract class SimpleDrawerListener implements DrawerListener { 184b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell @Override 185b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell public void onDrawerSlide(View drawerView, float slideOffset) { 186b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 187b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 188b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell @Override 189b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell public void onDrawerOpened(View drawerView) { 190b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 191b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 192b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell @Override 193b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell public void onDrawerClosed(View drawerView) { 194b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 195b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 196b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell @Override 197b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell public void onDrawerStateChanged(int newState) { 198b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 199b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 200b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 2011d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public DrawerLayout(Context context) { 2021d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell this(context, null); 2031d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 2041d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 2051d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public DrawerLayout(Context context, AttributeSet attrs) { 2061d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell this(context, attrs, 0); 2071d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 2081d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 2091d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public DrawerLayout(Context context, AttributeSet attrs, int defStyle) { 2101d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell super(context, attrs, defStyle); 2111d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 2121d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final float density = getResources().getDisplayMetrics().density; 2131d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mMinDrawerMargin = (int) (MIN_DRAWER_MARGIN * density + 0.5f); 2141d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 2151732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mLeftCallback = new ViewDragCallback(Gravity.LEFT); 2161732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mRightCallback = new ViewDragCallback(Gravity.RIGHT); 2171d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 2181732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mLeftDragger = ViewDragHelper.create(this, 0.5f, mLeftCallback); 2191d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mLeftDragger.setEdgeTrackingEnabled(ViewDragHelper.EDGE_LEFT); 2201732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mLeftCallback.setDragger(mLeftDragger); 2211d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 2221732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mRightDragger = ViewDragHelper.create(this, 0.5f, mRightCallback); 2231d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mRightDragger.setEdgeTrackingEnabled(ViewDragHelper.EDGE_RIGHT); 2241732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mRightCallback.setDragger(mRightDragger); 225791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell 226791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell // So that we can catch the back button 227791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell setFocusableInTouchMode(true); 2281d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 2291d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 2301d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 231b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * Set a simple drawable used for the left or right shadow. 232b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * The drawable provided must have a nonzero intrinsic width. 233b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * 234b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * @param shadowDrawable Shadow drawable to use at the edge of a drawer 235b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * @param gravity Which drawer the shadow should apply to 236b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell */ 237b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell public void setDrawerShadow(Drawable shadowDrawable, int gravity) { 238b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell /* 239b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * TODO Someone someday might want to set more complex drawables here. 240b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * They're probably nuts, but we might want to consider registering callbacks, 241b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * setting states, etc. properly. 242b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell */ 243b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 244b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final int absGravity = GravityCompat.getAbsoluteGravity(gravity, 245b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell ViewCompat.getLayoutDirection(this)); 246b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if ((absGravity & Gravity.LEFT) == Gravity.LEFT) { 247b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell mShadowLeft = shadowDrawable; 248b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell invalidate(); 249b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 250b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if ((absGravity & Gravity.RIGHT) == Gravity.RIGHT) { 251b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell mShadowRight = shadowDrawable; 252b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell invalidate(); 253b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 254b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 255b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 256b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell /** 257b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * Set a simple drawable used for the left or right shadow. 258b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * The drawable provided must have a nonzero intrinsic width. 259b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * 260b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * @param resId Resource id of a shadow drawable to use at the edge of a drawer 261b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * @param gravity Which drawer the shadow should apply to 262b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell */ 263b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell public void setDrawerShadow(int resId, int gravity) { 264b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell setDrawerShadow(getResources().getDrawable(resId), gravity); 265b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 266b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 267b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell /** 268fe130779be95af79e875bdbeac7182a424b8b9a6Adam Powell * Set a color to use for the scrim that obscures primary content while a drawer is open. 269fe130779be95af79e875bdbeac7182a424b8b9a6Adam Powell * 270fe130779be95af79e875bdbeac7182a424b8b9a6Adam Powell * @param color Color to use in 0xAARRGGBB format. 271fe130779be95af79e875bdbeac7182a424b8b9a6Adam Powell */ 272fe130779be95af79e875bdbeac7182a424b8b9a6Adam Powell public void setScrimColor(int color) { 273fe130779be95af79e875bdbeac7182a424b8b9a6Adam Powell mScrimColor = color; 274fe130779be95af79e875bdbeac7182a424b8b9a6Adam Powell invalidate(); 275fe130779be95af79e875bdbeac7182a424b8b9a6Adam Powell } 276fe130779be95af79e875bdbeac7182a424b8b9a6Adam Powell 277fe130779be95af79e875bdbeac7182a424b8b9a6Adam Powell /** 2781d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Set a listener to be notified of drawer events. 2791d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 2801d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @param listener Listener to notify when drawer events occur 2811d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @see DrawerListener 2821d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 2831d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void setDrawerListener(DrawerListener listener) { 2841d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mListener = listener; 2851d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 2861d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 2871d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 2880492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * Enable or disable interaction with all drawers. 2890492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 2900492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * <p>This allows the application to restrict the user's ability to open or close 2910492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * any drawer within this layout. DrawerLayout will still respond to calls to 2920492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * {@link #openDrawer(int)}, {@link #closeDrawer(int)} and friends if a drawer is locked.</p> 2930492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 2940492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * <p>Locking drawers open or closed will implicitly open or close 2950492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * any drawers as appropriate.</p> 2960492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 2970492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @param lockMode The new lock mode for the given drawer. One of {@link #LOCK_MODE_UNLOCKED}, 2980492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * {@link #LOCK_MODE_LOCKED_CLOSED} or {@link #LOCK_MODE_LOCKED_OPEN}. 2990492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell */ 3000492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell public void setDrawerLockMode(int lockMode) { 3010492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell setDrawerLockMode(lockMode, Gravity.LEFT); 3020492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell setDrawerLockMode(lockMode, Gravity.RIGHT); 3030492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 3040492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell 3050492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell /** 3060492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * Enable or disable interaction with the given drawer. 3070492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 3080492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * <p>This allows the application to restrict the user's ability to open or close 3090492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * the given drawer. DrawerLayout will still respond to calls to {@link #openDrawer(int)}, 3100492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * {@link #closeDrawer(int)} and friends if a drawer is locked.</p> 3110492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 3120492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * <p>Locking a drawer open or closed will implicitly open or close 3130492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * that drawer as appropriate.</p> 3140492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 3150492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @param lockMode The new lock mode for the given drawer. One of {@link #LOCK_MODE_UNLOCKED}, 3160492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * {@link #LOCK_MODE_LOCKED_CLOSED} or {@link #LOCK_MODE_LOCKED_OPEN}. 3170492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @param edgeGravity Gravity.LEFT, RIGHT, START or END. 3180492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * Expresses which drawer to change the mode for. 3190492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 3200492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @see #LOCK_MODE_UNLOCKED 3210492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @see #LOCK_MODE_LOCKED_CLOSED 3220492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @see #LOCK_MODE_LOCKED_OPEN 3230492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell */ 3240492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell public void setDrawerLockMode(int lockMode, int edgeGravity) { 3250492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell final int absGrav = GravityCompat.getAbsoluteGravity(edgeGravity, 3260492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell ViewCompat.getLayoutDirection(this)); 3270492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (absGrav == Gravity.LEFT) { 3280492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell mLockModeLeft = lockMode; 3290492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } else if (absGrav == Gravity.RIGHT) { 3300492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell mLockModeRight = lockMode; 3310492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 3320492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (lockMode != LOCK_MODE_UNLOCKED) { 3330492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell // Cancel interaction in progress 3340492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell final ViewDragHelper helper = absGrav == Gravity.LEFT ? mLeftDragger : mRightDragger; 3350492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell helper.cancel(); 3360492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 3370492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell switch (lockMode) { 3380492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell case LOCK_MODE_LOCKED_OPEN: 3390492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell final View toOpen = findDrawerWithGravity(absGrav); 3400492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (toOpen != null) { 3410492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell openDrawer(toOpen); 3420492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 3430492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell break; 3440492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell case LOCK_MODE_LOCKED_CLOSED: 3450492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell final View toClose = findDrawerWithGravity(absGrav); 3460492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (toClose != null) { 3470492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell closeDrawer(toClose); 3480492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 3490492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell break; 3500492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell // default: do nothing 3510492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 3520492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 3530492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell 3540492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell /** 3550492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * Enable or disable interaction with the given drawer. 3560492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 3570492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * <p>This allows the application to restrict the user's ability to open or close 3580492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * the given drawer. DrawerLayout will still respond to calls to {@link #openDrawer(int)}, 3590492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * {@link #closeDrawer(int)} and friends if a drawer is locked.</p> 3600492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 3610492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * <p>Locking a drawer open or closed will implicitly open or close 3620492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * that drawer as appropriate.</p> 3630492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 3640492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @param lockMode The new lock mode for the given drawer. One of {@link #LOCK_MODE_UNLOCKED}, 3650492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * {@link #LOCK_MODE_LOCKED_CLOSED} or {@link #LOCK_MODE_LOCKED_OPEN}. 3660492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @param drawerView The drawer view to change the lock mode for 3670492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 3680492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @see #LOCK_MODE_UNLOCKED 3690492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @see #LOCK_MODE_LOCKED_CLOSED 3700492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @see #LOCK_MODE_LOCKED_OPEN 3710492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell */ 3720492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell public void setDrawerLockMode(int lockMode, View drawerView) { 3730492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (!isDrawerView(drawerView)) { 3740492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell throw new IllegalArgumentException("View " + drawerView + " is not a " + 3750492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell "drawer with appropriate layout_gravity"); 3760492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 3770492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell setDrawerLockMode(lockMode, getDrawerViewGravity(drawerView)); 3780492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 3790492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell 3800492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell /** 3810492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * Check the lock mode of the drawer with the given gravity. 3820492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 3830492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @param edgeGravity Gravity of the drawer to check 3840492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @return one of {@link #LOCK_MODE_UNLOCKED}, {@link #LOCK_MODE_LOCKED_CLOSED} or 3850492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * {@link #LOCK_MODE_LOCKED_OPEN}. 3860492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell */ 3870492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell public int getDrawerLockMode(int edgeGravity) { 3880492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell final int absGrav = GravityCompat.getAbsoluteGravity(edgeGravity, 3890492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell ViewCompat.getLayoutDirection(this)); 3900492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (absGrav == Gravity.LEFT) { 3910492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return mLockModeLeft; 3920492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } else if (absGrav == Gravity.RIGHT) { 3930492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return mLockModeRight; 3940492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 3950492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return LOCK_MODE_UNLOCKED; 3960492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 3970492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell 3980492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell /** 3990492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * Check the lock mode of the given drawer view. 4000492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * 4010492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @param drawerView Drawer view to check lock mode 4020492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * @return one of {@link #LOCK_MODE_UNLOCKED}, {@link #LOCK_MODE_LOCKED_CLOSED} or 4030492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell * {@link #LOCK_MODE_LOCKED_OPEN}. 4040492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell */ 4050492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell public int getDrawerLockMode(View drawerView) { 4060492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell final int gravity = getDrawerViewGravity(drawerView); 4070492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (gravity == Gravity.LEFT) { 4080492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return mLockModeLeft; 4090492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } else if (gravity == Gravity.RIGHT) { 4100492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return mLockModeRight; 4110492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 4120492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell 4130492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return LOCK_MODE_UNLOCKED; 4140492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 4150492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell 4160492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell /** 4171d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Resolve the shared state of all drawers from the component ViewDragHelpers. 4181d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Should be called whenever a ViewDragHelper's state changes. 4191d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 420b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell void updateDrawerState(int forGravity, int activeState, View activeDrawer) { 4211d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int leftState = mLeftDragger.getViewDragState(); 4221d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int rightState = mRightDragger.getViewDragState(); 4231d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 4241d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int state; 4251d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (leftState == STATE_DRAGGING || rightState == STATE_DRAGGING) { 4261d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell state = STATE_DRAGGING; 4271d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else if (leftState == STATE_SETTLING || rightState == STATE_SETTLING) { 4281d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell state = STATE_SETTLING; 4291d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { 4301d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell state = STATE_IDLE; 4311d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4321d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 433b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (activeDrawer != null && activeState == STATE_IDLE) { 434b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final LayoutParams lp = (LayoutParams) activeDrawer.getLayoutParams(); 435b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (lp.onScreen == 0) { 436b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell dispatchOnDrawerClosed(activeDrawer); 437b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } else if (lp.onScreen == 1) { 438b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell dispatchOnDrawerOpened(activeDrawer); 439b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 440b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 441b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 4421d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (state != mDrawerState) { 4431d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mDrawerState = state; 444b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 4451d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (mListener != null) { 4461d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mListener.onDrawerStateChanged(state); 4471d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4481d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4491d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4501d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 4511d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell void dispatchOnDrawerClosed(View drawerView) { 4521d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final LayoutParams lp = (LayoutParams) drawerView.getLayoutParams(); 4531d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (lp.knownOpen) { 4541d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell lp.knownOpen = false; 4551d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (mListener != null) { 4561d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mListener.onDrawerClosed(drawerView); 4571d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4581d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4591d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4601d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 4611d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell void dispatchOnDrawerOpened(View drawerView) { 4621d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final LayoutParams lp = (LayoutParams) drawerView.getLayoutParams(); 4631d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (!lp.knownOpen) { 4641d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell lp.knownOpen = true; 4651d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (mListener != null) { 4661d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mListener.onDrawerOpened(drawerView); 4671d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4681d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4691d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4701d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 4711d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell void dispatchOnDrawerSlide(View drawerView, float slideOffset) { 4721d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (mListener != null) { 4731d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mListener.onDrawerSlide(drawerView, slideOffset); 4741d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4751d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4761d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 4771d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell void setDrawerViewOffset(View drawerView, float slideOffset) { 4781d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final LayoutParams lp = (LayoutParams) drawerView.getLayoutParams(); 479b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (slideOffset == lp.onScreen) { 4801d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return; 4811d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4821d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 483b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell lp.onScreen = slideOffset; 4841d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell dispatchOnDrawerSlide(drawerView, slideOffset); 4851d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4861d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 4871d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell float getDrawerViewOffset(View drawerView) { 488b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell return ((LayoutParams) drawerView.getLayoutParams()).onScreen; 4891d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4901d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 4911d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell int getDrawerViewGravity(View drawerView) { 4921d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int gravity = ((LayoutParams) drawerView.getLayoutParams()).gravity; 4931d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return GravityCompat.getAbsoluteGravity(gravity, ViewCompat.getLayoutDirection(drawerView)); 4941d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 4951d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 4961d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell boolean checkDrawerViewGravity(View drawerView, int checkFor) { 4971d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int absGrav = getDrawerViewGravity(drawerView); 4981d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return (absGrav & checkFor) == checkFor; 4991d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 5001d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 5010492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell View findOpenDrawer() { 5020492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell final int childCount = getChildCount(); 5030492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell for (int i = 0; i < childCount; i++) { 5040492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell final View child = getChildAt(i); 5050492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (((LayoutParams) child.getLayoutParams()).knownOpen) { 5060492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return child; 5070492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 5080492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 5090492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return null; 5100492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 5110492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell 5121d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell void moveDrawerToOffset(View drawerView, float slideOffset) { 5131d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final float oldOffset = getDrawerViewOffset(drawerView); 5141d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int width = drawerView.getWidth(); 5151d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int oldPos = (int) (width * oldOffset); 5161d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int newPos = (int) (width * slideOffset); 5171d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int dx = newPos - oldPos; 5181d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 5191d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell drawerView.offsetLeftAndRight(checkDrawerViewGravity(drawerView, Gravity.LEFT) ? dx : -dx); 5201d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell setDrawerViewOffset(drawerView, slideOffset); 5211d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 5221d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 5231d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell View findDrawerWithGravity(int gravity) { 5241d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childCount = getChildCount(); 5251d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell for (int i = 0; i < childCount; i++) { 5261d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final View child = getChildAt(i); 5271d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childGravity = getDrawerViewGravity(child); 5281d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if ((childGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 5291d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell (gravity & Gravity.HORIZONTAL_GRAVITY_MASK)) { 5301d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return child; 5311d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 5321d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 5331d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return null; 5341d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 5351d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 5361d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 5371d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Simple gravity to string - only supports LEFT and RIGHT for debugging output. 5381d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 5391d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @param gravity Absolute gravity value 5401d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @return LEFT or RIGHT as appropriate, or a hex string 5411d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 5421d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell static String gravityToString(int gravity) { 5431d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if ((gravity & Gravity.LEFT) == Gravity.LEFT) { 5441d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return "LEFT"; 5451d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 5461d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if ((gravity & Gravity.RIGHT) == Gravity.RIGHT) { 5471d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return "RIGHT"; 5481d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 5491d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return Integer.toHexString(gravity); 5501d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 5511d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 5521d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 55357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell protected void onDetachedFromWindow() { 55457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell super.onDetachedFromWindow(); 55557902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell mFirstLayout = true; 55657902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 55757902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 55857902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell @Override 55957902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell protected void onAttachedToWindow() { 56057902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell super.onAttachedToWindow(); 56157902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell mFirstLayout = true; 56257902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 56357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 56457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell @Override 5651d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5661d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int widthMode = MeasureSpec.getMode(widthMeasureSpec); 5671d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int heightMode = MeasureSpec.getMode(heightMeasureSpec); 5681d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int widthSize = MeasureSpec.getSize(widthMeasureSpec); 5691d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int heightSize = MeasureSpec.getSize(heightMeasureSpec); 5701d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 5711d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (widthMode != MeasureSpec.EXACTLY || heightMode != MeasureSpec.EXACTLY) { 5721d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell throw new IllegalArgumentException( 5731d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell "DrawerLayout must be measured with MeasureSpec.EXACTLY."); 5741d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 5751d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 5761d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell setMeasuredDimension(widthSize, heightSize); 5771d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 5781d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell // Gravity value for each drawer we've seen. Only one of each permitted. 5791d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell int foundDrawers = 0; 5801d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childCount = getChildCount(); 5811d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell for (int i = 0; i < childCount; i++) { 5821d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final View child = getChildAt(i); 5831d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 5841d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (child.getVisibility() == GONE) { 5851d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell continue; 5861d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 5871d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 58800ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 58900ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell 5901d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (isContentView(child)) { 5911d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell // Content views get measured at exactly the layout's size. 59200ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell final int contentWidthSpec = MeasureSpec.makeMeasureSpec( 59300ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell widthSize - lp.leftMargin - lp.rightMargin, MeasureSpec.EXACTLY); 59400ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell final int contentHeightSpec = MeasureSpec.makeMeasureSpec( 59500ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell heightSize - lp.topMargin - lp.bottomMargin, MeasureSpec.EXACTLY); 59600ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell child.measure(contentWidthSpec, contentHeightSpec); 5971d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else if (isDrawerView(child)) { 5981d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childGravity = 5991d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell getDrawerViewGravity(child) & Gravity.HORIZONTAL_GRAVITY_MASK; 6001d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if ((foundDrawers & childGravity) != 0) { 6011d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell throw new IllegalStateException("Child drawer has absolute gravity " + 6021d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell gravityToString(childGravity) + " but this " + TAG + " already has a " + 6031d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell "drawer view along that edge"); 6041d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 60500ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell final int drawerWidthSpec = getChildMeasureSpec(widthMeasureSpec, 60600ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell mMinDrawerMargin + lp.leftMargin + lp.rightMargin, 60700ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell lp.width); 60800ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell final int drawerHeightSpec = getChildMeasureSpec(heightMeasureSpec, 60900ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell lp.topMargin + lp.bottomMargin, 61000ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell lp.height); 61100ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell child.measure(drawerWidthSpec, drawerHeightSpec); 6121d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { 6131d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell throw new IllegalStateException("Child " + child + " at index " + i + 6141d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell " does not have a valid layout_gravity - must be Gravity.LEFT, " + 6151d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell "Gravity.RIGHT or Gravity.NO_GRAVITY"); 6161d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 6171d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 6181d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 6191d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 6201d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 6211d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell protected void onLayout(boolean changed, int l, int t, int r, int b) { 622b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell mInLayout = true; 6231d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childCount = getChildCount(); 6241d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell for (int i = 0; i < childCount; i++) { 6251d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final View child = getChildAt(i); 6261d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 6271d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (child.getVisibility() == GONE) { 6281d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell continue; 6291d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 6301d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 63100ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 63200ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell 6331d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (isContentView(child)) { 63400ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell child.layout(lp.leftMargin, lp.topMargin, 63500ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell lp.leftMargin + child.getMeasuredWidth(), 63600ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell lp.topMargin + child.getMeasuredHeight()); 6371d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { // Drawer, if it wasn't onMeasure would have thrown an exception. 6381d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childWidth = child.getMeasuredWidth(); 63900ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell final int childHeight = child.getMeasuredHeight(); 6401d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell int childLeft; 6411d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 6421d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (checkDrawerViewGravity(child, Gravity.LEFT)) { 643b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell childLeft = -childWidth + (int) (childWidth * lp.onScreen); 6441d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { // Right; onMeasure checked for us. 645b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell childLeft = r - l - (int) (childWidth * lp.onScreen); 6461d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 6471d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 64800ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK; 64900ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell 65000ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell switch (vgrav) { 65100ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell default: 65200ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell case Gravity.TOP: { 65300ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell child.layout(childLeft, lp.topMargin, childLeft + childWidth, childHeight); 65400ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell break; 65500ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell } 65600ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell 65700ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell case Gravity.BOTTOM: { 65800ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell final int height = b - t; 65900ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell child.layout(childLeft, 66000ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell height - lp.bottomMargin - child.getMeasuredHeight(), 66100ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell childLeft + childWidth, 66200ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell height - lp.bottomMargin); 66300ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell break; 66400ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell } 66500ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell 66600ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell case Gravity.CENTER_VERTICAL: { 66700ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell final int height = b - t; 66800ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell int childTop = (height - childHeight) / 2; 66900ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell 67000ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell // Offset for margins. If things don't fit right because of 67100ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell // bad measurement before, oh well. 67200ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell if (childTop < lp.topMargin) { 67300ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell childTop = lp.topMargin; 67400ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell } else if (childTop + childHeight > height - lp.bottomMargin) { 67500ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell childTop = height - lp.bottomMargin - childHeight; 67600ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell } 67700ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell child.layout(childLeft, childTop, childLeft + childWidth, 67800ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell childTop + childHeight); 67900ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell break; 68000ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell } 68100ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell } 682b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 683b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (lp.onScreen == 0) { 684b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell child.setVisibility(INVISIBLE); 685b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 6861d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 6871d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 688b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell mInLayout = false; 68957902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell mFirstLayout = false; 690b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 691b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 692b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell @Override 693b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell public void requestLayout() { 694b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (!mInLayout) { 695b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell super.requestLayout(); 696b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 6971d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 6981d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 6991d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 7001d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void computeScroll() { 7011d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childCount = getChildCount(); 7021d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell float scrimOpacity = 0; 7031d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell for (int i = 0; i < childCount; i++) { 704b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final float onscreen = ((LayoutParams) getChildAt(i).getLayoutParams()).onScreen; 7051d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell scrimOpacity = Math.max(scrimOpacity, onscreen); 7061d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 7071d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mScrimOpacity = scrimOpacity; 7081d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 7091d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell // "|" used on purpose; both need to run. 7101d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (mLeftDragger.continueSettling(true) | mRightDragger.continueSettling(true)) { 7111d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell ViewCompat.postInvalidateOnAnimation(this); 7121d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 7131d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 7141d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 715b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell private static boolean hasOpaqueBackground(View v) { 716b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final Drawable bg = v.getBackground(); 717b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (bg != null) { 718b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell return bg.getOpacity() == PixelFormat.OPAQUE; 719b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 720b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell return false; 721b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 722b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 7231d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 7241d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell protected boolean drawChild(Canvas canvas, View child, long drawingTime) { 72500ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell final int height = getHeight(); 726b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final boolean drawingContent = isContentView(child); 727b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell int clipLeft = 0, clipRight = getWidth(); 728b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 7291d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int restoreCount = canvas.save(); 730b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (drawingContent) { 731b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final int childCount = getChildCount(); 732b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell for (int i = 0; i < childCount; i++) { 733b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final View v = getChildAt(i); 734b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (v == child || v.getVisibility() != VISIBLE || 73500ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell !hasOpaqueBackground(v) || !isDrawerView(v) || 73600ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell v.getHeight() < height) { 737b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell continue; 738b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 739b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 740b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (checkDrawerViewGravity(v, Gravity.LEFT)) { 741b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final int vright = v.getRight(); 742b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (vright > clipLeft) clipLeft = vright; 743b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } else { 744b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final int vleft = v.getLeft(); 745b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (vleft < clipRight) clipRight = vleft; 746b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 747b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 748b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell canvas.clipRect(clipLeft, 0, clipRight, getHeight()); 749b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 7501d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final boolean result = super.drawChild(canvas, child, drawingTime); 7511d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell canvas.restoreToCount(restoreCount); 752b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 753b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (mScrimOpacity > 0 && drawingContent) { 7541d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int baseAlpha = (mScrimColor & 0xff000000) >>> 24; 7551d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int imag = (int) (baseAlpha * mScrimOpacity); 7561d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int color = imag << 24 | (mScrimColor & 0xffffff); 7571d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mScrimPaint.setColor(color); 7581d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 759b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell canvas.drawRect(clipLeft, 0, clipRight, getHeight(), mScrimPaint); 760b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } else if (mShadowLeft != null && checkDrawerViewGravity(child, Gravity.LEFT)) { 761b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final int shadowWidth = mShadowLeft.getIntrinsicWidth(); 762b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final int childRight = child.getRight(); 763ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell final int drawerPeekDistance = mLeftDragger.getEdgeSize(); 764b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final float alpha = 765ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell Math.max(0, Math.min((float) childRight / drawerPeekDistance, 1.f)); 766b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell mShadowLeft.setBounds(childRight, child.getTop(), 767b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell childRight + shadowWidth, child.getBottom()); 768b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell mShadowLeft.setAlpha((int) (0xff * alpha)); 769b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell mShadowLeft.draw(canvas); 770b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } else if (mShadowRight != null && checkDrawerViewGravity(child, Gravity.RIGHT)) { 771b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final int shadowWidth = mShadowRight.getIntrinsicWidth(); 772b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final int childLeft = child.getLeft(); 773b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final int showing = getWidth() - childLeft; 774ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell final int drawerPeekDistance = mRightDragger.getEdgeSize(); 775b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final float alpha = 776ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell Math.max(0, Math.min((float) showing / drawerPeekDistance, 1.f)); 777b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell mShadowRight.setBounds(childLeft - shadowWidth, child.getTop(), 778b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell childLeft, child.getBottom()); 779b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell mShadowRight.setAlpha((int) (0xff * alpha)); 780b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell mShadowRight.draw(canvas); 7811d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 7821d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return result; 7831d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 7841d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 7851d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell boolean isContentView(View child) { 7861d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return ((LayoutParams) child.getLayoutParams()).gravity == Gravity.NO_GRAVITY; 7871d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 7881d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 7891d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell boolean isDrawerView(View child) { 7901d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int gravity = ((LayoutParams) child.getLayoutParams()).gravity; 7911d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int absGravity = GravityCompat.getAbsoluteGravity(gravity, 7921d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell ViewCompat.getLayoutDirection(child)); 7931d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return (absGravity & (Gravity.LEFT | Gravity.RIGHT)) != 0; 7941d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 7951d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 7961d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 7971d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public boolean onInterceptTouchEvent(MotionEvent ev) { 7981d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int action = MotionEventCompat.getActionMasked(ev); 7991d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 8001d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell // "|" used deliberately here; both methods should be invoked. 8011d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final boolean interceptForDrag = mLeftDragger.shouldInterceptTouchEvent(ev) | 8021d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mRightDragger.shouldInterceptTouchEvent(ev); 8031d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 8041d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell boolean interceptForTap = false; 8051d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 8061d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell switch (action) { 8071d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell case MotionEvent.ACTION_DOWN: { 8081d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final float x = ev.getX(); 8091d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final float y = ev.getY(); 8101d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mInitialMotionX = x; 8111d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mInitialMotionY = y; 8121d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (mScrimOpacity > 0 && 8131d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell isContentView(mLeftDragger.findTopChildUnder((int) x, (int) y))) { 8141d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell interceptForTap = true; 8151d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8161732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mDisallowInterceptRequested = false; 817cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell mChildrenCanceledTouch = false; 8181732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell break; 8191732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell } 8201732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell 8211732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell case MotionEvent.ACTION_MOVE: { 8221732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell // If we cross the touch slop, don't perform the delayed peek for an edge touch. 8231732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell if (mLeftDragger.checkTouchSlop(ViewDragHelper.DIRECTION_ALL)) { 8241732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mLeftCallback.removeCallbacks(); 8251732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mRightCallback.removeCallbacks(); 8261732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell } 8271d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell break; 8281d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8291d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 8301d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell case MotionEvent.ACTION_CANCEL: 8311d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell case MotionEvent.ACTION_UP: { 8321d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell closeDrawers(true); 8331732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mDisallowInterceptRequested = false; 834cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell mChildrenCanceledTouch = false; 8351d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8361d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8371732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell 838cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell return interceptForDrag || interceptForTap || hasPeekingDrawer() || mChildrenCanceledTouch; 8391d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8401d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 8411d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 8421d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public boolean onTouchEvent(MotionEvent ev) { 8431d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mLeftDragger.processTouchEvent(ev); 8441d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mRightDragger.processTouchEvent(ev); 8451d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 8461d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int action = ev.getAction(); 8471d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell boolean wantTouchEvents = true; 8481d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 8491d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell switch (action & MotionEventCompat.ACTION_MASK) { 8501d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell case MotionEvent.ACTION_DOWN: { 8511d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final float x = ev.getX(); 8521d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final float y = ev.getY(); 8531d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mInitialMotionX = x; 8541d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mInitialMotionY = y; 8551732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mDisallowInterceptRequested = false; 856cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell mChildrenCanceledTouch = false; 8571d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell break; 8581d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8591d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 8601d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell case MotionEvent.ACTION_UP: { 8611d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final float x = ev.getX(); 8621d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final float y = ev.getY(); 8631d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell boolean peekingOnly = true; 8648bc268e9c40e4ae375a0d65dc1293dccc541186fAdam Powell final View touchedView = mLeftDragger.findTopChildUnder((int) x, (int) y); 8658bc268e9c40e4ae375a0d65dc1293dccc541186fAdam Powell if (touchedView != null && isContentView(touchedView)) { 8661d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final float dx = x - mInitialMotionX; 8671d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final float dy = y - mInitialMotionY; 8681d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int slop = mLeftDragger.getTouchSlop(); 8691d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (dx * dx + dy * dy < slop * slop) { 8700492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell // Taps close a dimmed open drawer but only if it isn't locked open. 8710492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell final View openDrawer = findOpenDrawer(); 8720492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (openDrawer != null) { 8730492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell peekingOnly = getDrawerLockMode(openDrawer) == LOCK_MODE_LOCKED_OPEN; 8740492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 8751d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8761d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8771d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell closeDrawers(peekingOnly); 8781732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mDisallowInterceptRequested = false; 8791d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell break; 8801d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8811d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 8821d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell case MotionEvent.ACTION_CANCEL: { 8831d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell closeDrawers(true); 8841732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mDisallowInterceptRequested = false; 885cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell mChildrenCanceledTouch = false; 8861d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell break; 8871d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8881d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8891d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 8901d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return wantTouchEvents; 8911d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 8921d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 893ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 8941732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell if (!mLeftDragger.isEdgeTouched(ViewDragHelper.EDGE_LEFT) && 8951732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell !mRightDragger.isEdgeTouched(ViewDragHelper.EDGE_RIGHT)) { 8961732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell // If we have an edge touch we want to skip this and track it for later instead. 8971732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell super.requestDisallowInterceptTouchEvent(disallowIntercept); 8981732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell } 8991732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mDisallowInterceptRequested = disallowIntercept; 900ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell if (disallowIntercept) { 901ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell closeDrawers(true); 902ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell } 903ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell } 904ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell 9051d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 9061d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Close all currently open drawer views by animating them out of view. 9071d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 9081d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void closeDrawers() { 9091d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell closeDrawers(false); 9101d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9111d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 9121d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell void closeDrawers(boolean peekingOnly) { 9131d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell boolean needsInvalidate = false; 9141d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childCount = getChildCount(); 9151d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell for (int i = 0; i < childCount; i++) { 9161d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final View child = getChildAt(i); 9171d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 9181d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 9191d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (!isDrawerView(child) || (peekingOnly && !lp.isPeeking)) { 9201d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell continue; 9211d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9221d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 9231d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childWidth = child.getWidth(); 9241d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 9251d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (checkDrawerViewGravity(child, Gravity.LEFT)) { 9261d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell needsInvalidate |= mLeftDragger.smoothSlideViewTo(child, 9271d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell -childWidth, child.getTop()); 9281d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { 9291d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell needsInvalidate |= mRightDragger.smoothSlideViewTo(child, 9301d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell getWidth(), child.getTop()); 9311d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9321d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 9331d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell lp.isPeeking = false; 9341d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9351d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 9361732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mLeftCallback.removeCallbacks(); 9371732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell mRightCallback.removeCallbacks(); 9381732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell 9391d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (needsInvalidate) { 9401d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell invalidate(); 9411d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9421d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9431d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 9441d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 9451d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Open the specified drawer view by animating it into view. 9461d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 9471d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @param drawerView Drawer view to open 9481d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 9491d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void openDrawer(View drawerView) { 9501d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (!isDrawerView(drawerView)) { 9511d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell throw new IllegalArgumentException("View " + drawerView + " is not a sliding drawer"); 9521d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9531d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 95457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell if (mFirstLayout) { 95557902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell final LayoutParams lp = (LayoutParams) drawerView.getLayoutParams(); 95657902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell lp.onScreen = 1.f; 95757902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell lp.knownOpen = true; 9581d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { 95957902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell if (checkDrawerViewGravity(drawerView, Gravity.LEFT)) { 96057902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell mLeftDragger.smoothSlideViewTo(drawerView, 0, drawerView.getTop()); 96157902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } else { 96257902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell mRightDragger.smoothSlideViewTo(drawerView, getWidth() - drawerView.getWidth(), 96357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell drawerView.getTop()); 96457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 9651d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9661d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell invalidate(); 9671d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9681d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 9691d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 9701d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Open the specified drawer by animating it out of view. 9711d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 9721d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @param gravity Gravity.LEFT to move the left drawer or Gravity.RIGHT for the right. 9731d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * GravityCompat.START or GravityCompat.END may also be used. 9741d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 9751d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void openDrawer(int gravity) { 9761d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int absGravity = GravityCompat.getAbsoluteGravity(gravity, 9771d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell ViewCompat.getLayoutDirection(this)); 9781d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final View drawerView = findDrawerWithGravity(absGravity); 9791d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 9801d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (drawerView == null) { 9811d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell throw new IllegalArgumentException("No drawer view found with absolute gravity " + 9821d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell gravityToString(absGravity)); 9831d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9841d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell openDrawer(drawerView); 9851d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9861d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 9871d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 9881d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Close the specified drawer view by animating it into view. 9891d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 9901d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @param drawerView Drawer view to close 9911d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 9921d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void closeDrawer(View drawerView) { 9931d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (!isDrawerView(drawerView)) { 9941d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell throw new IllegalArgumentException("View " + drawerView + " is not a sliding drawer"); 9951d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 9961d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 99757902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell if (mFirstLayout) { 99857902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell final LayoutParams lp = (LayoutParams) drawerView.getLayoutParams(); 99957902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell lp.onScreen = 0.f; 100057902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell lp.knownOpen = false; 10011d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { 100257902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell if (checkDrawerViewGravity(drawerView, Gravity.LEFT)) { 100357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell mLeftDragger.smoothSlideViewTo(drawerView, -drawerView.getWidth(), 100457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell drawerView.getTop()); 100557902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } else { 100657902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell mRightDragger.smoothSlideViewTo(drawerView, getWidth(), drawerView.getTop()); 100757902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 10081d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 10091d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell invalidate(); 10101d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 10111d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 10121d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell /** 10131d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * Close the specified drawer by animating it out of view. 10141d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * 10151d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * @param gravity Gravity.LEFT to move the left drawer or Gravity.RIGHT for the right. 10161d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell * GravityCompat.START or GravityCompat.END may also be used. 10171d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell */ 10181d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void closeDrawer(int gravity) { 10191d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int absGravity = GravityCompat.getAbsoluteGravity(gravity, 10201d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell ViewCompat.getLayoutDirection(this)); 10211d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final View drawerView = findDrawerWithGravity(absGravity); 10221d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 10231d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (drawerView == null) { 10241d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell throw new IllegalArgumentException("No drawer view found with absolute gravity " + 10251d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell gravityToString(absGravity)); 10261d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 10271d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell closeDrawer(drawerView); 10281d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 10291d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 1030b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell /** 1031b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * Check if the given drawer view is currently in an open state. 1032b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * To be considered "open" the drawer must have settled into its fully 1033b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * visible state. To check for partial visibility use 1034b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * {@link #isDrawerVisible(android.view.View)}. 1035b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * 1036b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * @param drawer Drawer view to check 1037b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * @return true if the given drawer view is in an open state 1038b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * @see #isDrawerVisible(android.view.View) 1039b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell */ 1040b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell public boolean isDrawerOpen(View drawer) { 1041b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (!isDrawerView(drawer)) { 1042b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell throw new IllegalArgumentException("View " + drawer + " is not a drawer"); 1043b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 1044b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell return ((LayoutParams) drawer.getLayoutParams()).knownOpen; 1045b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 1046b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 1047b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell /** 1048b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * Check if a given drawer view is currently visible on-screen. The drawer 1049b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * may be only peeking onto the screen, fully extended, or anywhere inbetween. 1050b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * 1051b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * @param drawer Drawer view to check 1052b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * @return true if the given drawer is visible on-screen 1053b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell * @see #isDrawerOpen(android.view.View) 1054b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell */ 1055b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell public boolean isDrawerVisible(View drawer) { 1056b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (!isDrawerView(drawer)) { 1057b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell throw new IllegalArgumentException("View " + drawer + " is not a drawer"); 1058b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 1059b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell return ((LayoutParams) drawer.getLayoutParams()).onScreen > 0; 1060b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell } 1061b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell 1062ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell private boolean hasPeekingDrawer() { 1063ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell final int childCount = getChildCount(); 1064ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell for (int i = 0; i < childCount; i++) { 1065ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell final LayoutParams lp = (LayoutParams) getChildAt(i).getLayoutParams(); 1066ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell if (lp.isPeeking) { 1067ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell return true; 1068ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell } 1069ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell } 1070ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell return false; 1071ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell } 1072ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell 10731d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 10741d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 10751d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT); 10761d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 10771d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 10781d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 10791d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 10801d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return p instanceof LayoutParams 10811d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell ? new LayoutParams((LayoutParams) p) 108200ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell : p instanceof ViewGroup.MarginLayoutParams 108300ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell ? new LayoutParams((MarginLayoutParams) p) 10841d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell : new LayoutParams(p); 10851d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 10861d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 10871d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 10881d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 10891d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return p instanceof LayoutParams && super.checkLayoutParams(p); 10901d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 10911d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 10921d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 10931d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public ViewGroup.LayoutParams generateLayoutParams(AttributeSet attrs) { 10941d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return new LayoutParams(getContext(), attrs); 10951d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 10961d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 1097791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell private boolean hasVisibleDrawer() { 10980492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return findVisibleDrawer() != null; 10990492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 11000492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell 11010492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell private View findVisibleDrawer() { 1102791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell final int childCount = getChildCount(); 1103791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell for (int i = 0; i < childCount; i++) { 1104791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell final View child = getChildAt(i); 1105791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell if (isDrawerView(child) && isDrawerVisible(child)) { 11060492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return child; 1107791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell } 1108791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell } 11090492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return null; 1110791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell } 1111791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell 1112cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell void cancelChildViewTouch() { 1113cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell // Cancel child touches 1114cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell if (!mChildrenCanceledTouch) { 1115cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell final long now = SystemClock.uptimeMillis(); 1116cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell final MotionEvent cancelEvent = MotionEvent.obtain(now, now, 1117cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell MotionEvent.ACTION_CANCEL, 0.0f, 0.0f, 0); 1118cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell final int childCount = getChildCount(); 1119cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell for (int i = 0; i < childCount; i++) { 1120cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell getChildAt(i).dispatchTouchEvent(cancelEvent); 1121cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell } 1122cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell cancelEvent.recycle(); 1123cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell mChildrenCanceledTouch = true; 1124cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell } 1125cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell } 1126cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell 1127791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell @Override 1128791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell public boolean onKeyDown(int keyCode, KeyEvent event) { 1129791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell if (keyCode == KeyEvent.KEYCODE_BACK && hasVisibleDrawer()) { 1130791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell KeyEventCompat.startTracking(event); 1131791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell return true; 1132791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell } 1133791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell return super.onKeyDown(keyCode, event); 1134791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell } 1135791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell 1136791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell @Override 1137791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell public boolean onKeyUp(int keyCode, KeyEvent event) { 11380492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (keyCode == KeyEvent.KEYCODE_BACK) { 11390492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell final View visibleDrawer = findVisibleDrawer(); 11400492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (visibleDrawer != null && getDrawerLockMode(visibleDrawer) == LOCK_MODE_UNLOCKED) { 11410492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell closeDrawers(); 11420492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell } 11430492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return visibleDrawer != null; 1144791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell } 1145791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell return super.onKeyUp(keyCode, event); 1146791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell } 1147791f31bbba40b8b51694a1b2cdc804f360786ed1Adam Powell 114857902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell @Override 114957902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell protected void onRestoreInstanceState(Parcelable state) { 115057902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell final SavedState ss = (SavedState) state; 115157902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell super.onRestoreInstanceState(ss.getSuperState()); 115257902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 115357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell if (ss.openDrawerGravity != Gravity.NO_GRAVITY) { 115457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell final View toOpen = findDrawerWithGravity(ss.openDrawerGravity); 115557902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell if (toOpen != null) { 115657902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell openDrawer(toOpen); 115757902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 115857902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 11598e01d24e718d603974182cd48f648369c07edec1Adam Powell 11608e01d24e718d603974182cd48f648369c07edec1Adam Powell setDrawerLockMode(ss.lockModeLeft, Gravity.LEFT); 11618e01d24e718d603974182cd48f648369c07edec1Adam Powell setDrawerLockMode(ss.lockModeRight, Gravity.RIGHT); 116257902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 116357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 116457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell @Override 116557902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell protected Parcelable onSaveInstanceState() { 116657902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell final Parcelable superState = super.onSaveInstanceState(); 116757902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 116857902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell final SavedState ss = new SavedState(superState); 116957902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 117057902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell final int childCount = getChildCount(); 117157902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell for (int i = 0; i < childCount; i++) { 117257902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell final View child = getChildAt(i); 117357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell if (!isDrawerView(child)) { 117457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell continue; 117557902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 117657902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 117757902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 117857902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell if (lp.knownOpen) { 117957902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell ss.openDrawerGravity = lp.gravity; 118057902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell // Only one drawer can be open at a time. 118157902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell break; 118257902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 118357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 118457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 11858e01d24e718d603974182cd48f648369c07edec1Adam Powell ss.lockModeLeft = mLockModeLeft; 11868e01d24e718d603974182cd48f648369c07edec1Adam Powell ss.lockModeRight = mLockModeRight; 11878e01d24e718d603974182cd48f648369c07edec1Adam Powell 118857902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell return ss; 118957902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 119057902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 119157902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell /** 119257902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell * State persisted across instances 119357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell */ 119457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell protected static class SavedState extends BaseSavedState { 119557902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell int openDrawerGravity = Gravity.NO_GRAVITY; 11968e01d24e718d603974182cd48f648369c07edec1Adam Powell int lockModeLeft = LOCK_MODE_UNLOCKED; 11978e01d24e718d603974182cd48f648369c07edec1Adam Powell int lockModeRight = LOCK_MODE_UNLOCKED; 119857902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 119957902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell public SavedState(Parcel in) { 120057902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell super(in); 120157902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell openDrawerGravity = in.readInt(); 120257902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 120357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 120457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell public SavedState(Parcelable superState) { 120557902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell super(superState); 120657902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 120757902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 120857902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell @Override 120957902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell public void writeToParcel(Parcel dest, int flags) { 121057902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell super.writeToParcel(dest, flags); 121157902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell dest.writeInt(openDrawerGravity); 121257902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 121357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 121457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell public static final Parcelable.Creator<SavedState> CREATOR = 121557902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell new Parcelable.Creator<SavedState>() { 121657902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell @Override 121757902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell public SavedState createFromParcel(Parcel source) { 121857902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell return new SavedState(source); 121957902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 122057902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 122157902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell @Override 122257902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell public SavedState[] newArray(int size) { 122357902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell return new SavedState[size]; 122457902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 122557902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell }; 122657902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell } 122757902cff6c54c245feea589b06d12dba8f1a2a24Adam Powell 12281d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private class ViewDragCallback extends ViewDragHelper.Callback { 12291d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private final int mGravity; 12301d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private ViewDragHelper mDragger; 12311d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 12321732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell private final Runnable mPeekRunnable = new Runnable() { 12331732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell @Override public void run() { 12341732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell peekDrawer(); 12351732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell } 12361732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell }; 12371732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell 12381d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public ViewDragCallback(int gravity) { 12391d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mGravity = gravity; 12401d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 12411d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 12421d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void setDragger(ViewDragHelper dragger) { 12431d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mDragger = dragger; 12441d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 12451d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 12461732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell public void removeCallbacks() { 12471732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell DrawerLayout.this.removeCallbacks(mPeekRunnable); 12481732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell } 12491732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell 12501d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 12511d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public boolean tryCaptureView(View child, int pointerId) { 12521d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell // Only capture views where the gravity matches what we're looking for. 12531d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell // This lets us use two ViewDragHelpers, one for each side drawer. 12540492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell return isDrawerView(child) && checkDrawerViewGravity(child, mGravity) && 12550492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell getDrawerLockMode(child) == LOCK_MODE_UNLOCKED; 12561d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 12571d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 12581d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 12591d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void onViewDragStateChanged(int state) { 1260b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell updateDrawerState(mGravity, state, mDragger.getCapturedView()); 12611d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 12621d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 12631d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 12641d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void onViewPositionChanged(View changedView, int left, int top, int dx, int dy) { 12651d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell float offset; 12661d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childWidth = changedView.getWidth(); 12671d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 12681d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell // This reverses the positioning shown in onLayout. 12691d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (checkDrawerViewGravity(changedView, Gravity.LEFT)) { 12701d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell offset = (float) (childWidth + left) / childWidth; 12711d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { 12721d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int width = getWidth(); 12731d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell offset = (float) (width - left) / childWidth; 12741d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 12751d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell setDrawerViewOffset(changedView, offset); 1276b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell changedView.setVisibility(offset == 0 ? INVISIBLE : VISIBLE); 12771d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell invalidate(); 12781d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 12791d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 12801d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 12811d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void onViewCaptured(View capturedChild, int activePointerId) { 12821d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final LayoutParams lp = (LayoutParams) capturedChild.getLayoutParams(); 12831d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell lp.isPeeking = false; 12841d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 12851d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell closeOtherDrawer(); 12861d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 12871d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 12881d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell private void closeOtherDrawer() { 12891d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int otherGrav = mGravity == Gravity.LEFT ? Gravity.RIGHT : Gravity.LEFT; 12901d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final View toClose = findDrawerWithGravity(otherGrav); 12911d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (toClose != null) { 12921d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell closeDrawer(toClose); 12931d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 12941d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 12951d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 12961d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 12971d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void onViewReleased(View releasedChild, float xvel, float yvel) { 12981d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell // Offset is how open the drawer is, therefore left/right values 12991d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell // are reversed from one another. 13001d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final float offset = getDrawerViewOffset(releasedChild); 13011d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childWidth = releasedChild.getWidth(); 13021d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 13031d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell int left; 13041d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (checkDrawerViewGravity(releasedChild, Gravity.LEFT)) { 13051d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell left = xvel > 0 || xvel == 0 && offset > 0.5f ? 0 : -childWidth; 13061d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { 13071d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int width = getWidth(); 13081d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell left = xvel < 0 || xvel == 0 && offset < 0.5f ? width - childWidth : width; 13091d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 13101d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 13111d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mDragger.settleCapturedViewAt(left, releasedChild.getTop()); 13121d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell invalidate(); 13131d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 13141d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 13151d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 13161d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void onEdgeTouched(int edgeFlags, int pointerId) { 13171732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell postDelayed(mPeekRunnable, PEEK_DELAY); 13181732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell } 13191732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell 13201732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell private void peekDrawer() { 13211d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final View toCapture; 13221d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int childLeft; 1323ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell final int peekDistance = mDragger.getEdgeSize(); 13241732720ad57fe6d01392cd06551f1a25cff0333cAdam Powell final boolean leftEdge = mGravity == Gravity.LEFT; 1325b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (leftEdge) { 13261d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell toCapture = findDrawerWithGravity(Gravity.LEFT); 1327ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell childLeft = (toCapture != null ? -toCapture.getWidth() : 0) + peekDistance; 13281d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { 13291d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell toCapture = findDrawerWithGravity(Gravity.RIGHT); 1330ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell childLeft = getWidth() - peekDistance; 13311d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 13320492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell // Only peek if it would mean making the drawer more visible and the drawer isn't locked 1333b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell if (toCapture != null && ((leftEdge && toCapture.getLeft() < childLeft) || 13340492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell (!leftEdge && toCapture.getLeft() > childLeft)) && 13350492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell getDrawerLockMode(toCapture) == LOCK_MODE_UNLOCKED) { 1336b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell final LayoutParams lp = (LayoutParams) toCapture.getLayoutParams(); 13371d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mDragger.smoothSlideViewTo(toCapture, childLeft, toCapture.getTop()); 1338b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell lp.isPeeking = true; 13391d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell invalidate(); 13401d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 13411d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell closeOtherDrawer(); 1342cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell 1343cde2707260e8241ffb816a03cbf5d52c28004b8aAdam Powell cancelChildViewTouch(); 13441d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 13451d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 13461d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 13471d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 1348ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell public boolean onEdgeLock(int edgeFlags) { 1349ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell if (ALLOW_EDGE_LOCK) { 1350ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell final View drawer = findDrawerWithGravity(mGravity); 1351ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell if (drawer != null && !isDrawerOpen(drawer)) { 1352ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell closeDrawer(drawer); 1353ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell } 1354ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell return true; 1355acc82321ad119706485db342eaa12b225fa9b667Adam Powell } 1356ea7b10f4d5531713506e98c8093e7aab811f21f3Adam Powell return false; 1357acc82321ad119706485db342eaa12b225fa9b667Adam Powell } 1358acc82321ad119706485db342eaa12b225fa9b667Adam Powell 1359acc82321ad119706485db342eaa12b225fa9b667Adam Powell @Override 13601d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public void onEdgeDragStarted(int edgeFlags, int pointerId) { 13611d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final View toCapture; 13621d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if ((edgeFlags & ViewDragHelper.EDGE_LEFT) == ViewDragHelper.EDGE_LEFT) { 13631d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell toCapture = findDrawerWithGravity(Gravity.LEFT); 13641d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { 13651d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell toCapture = findDrawerWithGravity(Gravity.RIGHT); 13661d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 13671d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 13680492ea23e32dbf509a7613d29e5791fdd44b2135Adam Powell if (toCapture != null && getDrawerLockMode(toCapture) == LOCK_MODE_UNLOCKED) { 13691d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell mDragger.captureChildView(toCapture, pointerId); 13701d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 13711d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 13721d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 13731d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 13741d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public int getViewHorizontalDragRange(View child) { 13751d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return child.getWidth(); 13761d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 13771d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 13781d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell @Override 13791d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public int clampViewPositionHorizontal(View child, int left, int dx) { 13801d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell if (checkDrawerViewGravity(child, Gravity.LEFT)) { 13811d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return Math.max(-child.getWidth(), Math.min(left, 0)); 13821d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } else { 13831d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final int width = getWidth(); 13841d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell return Math.max(width - child.getWidth(), Math.min(left, width)); 13851d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 13861d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 138700ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell 138800ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell @Override 138900ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell public int clampViewPositionVertical(View child, int top, int dy) { 139000ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell return child.getTop(); 139100ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell } 13921d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 13931d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 139400ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell public static class LayoutParams extends ViewGroup.MarginLayoutParams { 13951d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 13961d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public int gravity = Gravity.NO_GRAVITY; 1397b562d856f6ff58b7fc421a3b0cd1e0e089b994abAdam Powell float onScreen; 13981d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell boolean isPeeking; 13991d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell boolean knownOpen; 14001d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 14011d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public LayoutParams(Context c, AttributeSet attrs) { 14021d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell super(c, attrs); 14031d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 14041d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell final TypedArray a = c.obtainStyledAttributes(attrs, LAYOUT_ATTRS); 14051d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell this.gravity = a.getInt(0, Gravity.NO_GRAVITY); 14061d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell a.recycle(); 14071d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 14081d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 14091d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public LayoutParams(int width, int height) { 14101d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell super(width, height); 14111d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 14121d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 14131d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public LayoutParams(int width, int height, int gravity) { 14141d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell this(width, height); 14151d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell this.gravity = gravity; 14161d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 14171d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 14181d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public LayoutParams(LayoutParams source) { 14191d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell super(source); 14201d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell this.gravity = source.gravity; 14211d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 14221d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell 14231d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell public LayoutParams(ViewGroup.LayoutParams source) { 14241d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell super(source); 14251d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 142600ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell 142700ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell public LayoutParams(ViewGroup.MarginLayoutParams source) { 142800ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell super(source); 142900ca2532981fbd705f947a637ffd967a8d6f733bAdam Powell } 14301d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell } 14311d26501f0c8e9f3577f651938a03f6b3a1a672c7Adam Powell} 1432