SlidingChallengeLayout.java revision 86b6357e5eb91950eac7de7ffe29e5a4ad32903b
1d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller/* 2d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * Copyright (C) 2012 The Android Open Source Project 3d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 4d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * Licensed under the Apache License, Version 2.0 (the "License"); 5d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * you may not use this file except in compliance with the License. 6d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * You may obtain a copy of the License at 7d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 8d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * http://www.apache.org/licenses/LICENSE-2.0 9d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 10d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * Unless required by applicable law or agreed to in writing, software 11d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * distributed under the License is distributed on an "AS IS" BASIS, 12d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * See the License for the specific language governing permissions and 14d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * limitations under the License. 15d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 16d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 17d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerpackage com.android.internal.policy.impl.keyguard; 18d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 19d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.content.Context; 20d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.content.res.TypedArray; 21d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.graphics.Canvas; 22d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.graphics.drawable.Drawable; 23d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.util.AttributeSet; 24d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.util.Log; 25d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.view.MotionEvent; 26d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.view.VelocityTracker; 27d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.view.View; 28d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.view.ViewConfiguration; 29d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.view.ViewGroup; 30d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.view.animation.Interpolator; 31d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport android.widget.Scroller; 32d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 33d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerimport com.android.internal.R; 34d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 35d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller/** 36d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * This layout handles interaction with the sliding security challenge views 37d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * that overlay/resize other keyguard contents. 38d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 3919a5267003e7dc70100a4bd4f1f449523b2ff38bJim Millerpublic class SlidingChallengeLayout extends ViewGroup implements ChallengeLayout { 40d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private static final String TAG = "SlidingChallengeLayout"; 41d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 42d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Drawn to show the drag handle in closed state; crossfades to the challenge view 43d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // when challenge is fully visible 44d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private Drawable mHandleDrawable; 4586b6357e5eb91950eac7de7ffe29e5a4ad32903bJohn Spurlock private boolean mShowHandle = true; 46d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 47d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Initialized during measurement from child layoutparams 48d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private View mChallengeView; 49d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 50d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Range: 0 (fully hidden) to 1 (fully visible) 51d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private float mChallengeOffset = 1.f; 52d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean mChallengeShowing = true; 53d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 54d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private final Scroller mScroller; 55d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int mScrollState; 56d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private OnChallengeScrolledListener mListener; 57d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 58d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public static final int SCROLL_STATE_IDLE = 0; 59d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public static final int SCROLL_STATE_DRAGGING = 1; 60d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public static final int SCROLL_STATE_SETTLING = 2; 61d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 62d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private static final int MAX_SETTLE_DURATION = 600; // ms 63d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 64d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // ID of the pointer in charge of a current drag 65d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int mActivePointerId = INVALID_POINTER; 66d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private static final int INVALID_POINTER = -1; 67d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 68d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // True if the user is currently dragging the slider 69d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean mDragging; 70d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // True if the user may not drag until a new gesture begins 71d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean mBlockDrag; 72d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 73d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private VelocityTracker mVelocityTracker; 74d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int mMinVelocity; 75d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int mMaxVelocity; 76d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private float mLastTouchY; 77d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int mDragHandleSize; 78d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 79d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private static final int DRAG_HANDLE_DEFAULT_SIZE = 32; // dp 80d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 81d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // True if at least one layout pass has happened since the view was attached. 82d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean mHasLayout; 83d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 84d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private static final Interpolator sMotionInterpolator = new Interpolator() { 85d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public float getInterpolation(float t) { 86d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller t -= 1.0f; 87d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return t * t * t * t * t + 1.0f; 88d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 89d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller }; 90d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 91d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private static final Interpolator sHandleFadeInterpolator = new Interpolator() { 92d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public float getInterpolation(float t) { 93d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return t * t; 94d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 95d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller }; 96d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 97d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private final Runnable mEndScrollRunnable = new Runnable () { 98d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void run() { 99d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller completeChallengeScroll(); 100d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 101d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller }; 102d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 103d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 104d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * Listener interface that reports changes in scroll state of the challenge area. 105d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 106d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public interface OnChallengeScrolledListener { 107d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 108d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * The scroll state itself changed. 109d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 110d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <p>scrollState will be one of the following:</p> 111d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 112d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <ul> 113d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <li><code>SCROLL_STATE_IDLE</code> - The challenge area is stationary.</li> 114d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <li><code>SCROLL_STATE_DRAGGING</code> - The user is actively dragging 115d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * the challenge area.</li> 116d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <li><code>SCROLL_STATE_SETTLING</code> - The challenge area is animating 117d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * into place.</li> 118d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * </ul> 119d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 120d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <p>Do not perform expensive operations (e.g. layout) 121d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * while the scroll state is not <code>SCROLL_STATE_IDLE</code>.</p> 122d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 123d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param scrollState The new scroll state of the challenge area. 124d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 125d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void onScrollStateChanged(int scrollState); 126d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 127d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 128d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * The precise position of the challenge area has changed. 129d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 130d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <p>NOTE: It is NOT safe to modify layout or call any View methods that may 131d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * result in a requestLayout anywhere in your view hierarchy as a result of this call. 132d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * It may be called during drawing.</p> 133d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 134d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param scrollPosition New relative position of the challenge area. 135d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 1.f = fully visible/ready to be interacted with. 136d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 0.f = fully invisible/inaccessible to the user. 137d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param challengeTop Position of the top edge of the challenge view in px in the 138d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * SlidingChallengeLayout's coordinate system. 139d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 140d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void onScrollPositionChanged(float scrollPosition, int challengeTop); 141d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 142d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 143d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public SlidingChallengeLayout(Context context) { 144d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller this(context, null); 145d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 146d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 147d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public SlidingChallengeLayout(Context context, AttributeSet attrs) { 148d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller this(context, attrs, 0); 149d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 150d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 151d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public SlidingChallengeLayout(Context context, AttributeSet attrs, int defStyle) { 152d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(context, attrs, defStyle); 153d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 154d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final TypedArray a = context.obtainStyledAttributes(attrs, 155d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller R.styleable.SlidingChallengeLayout, defStyle, 0); 156d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setDragHandleDrawable(a.getDrawable(R.styleable.SlidingChallengeLayout_dragHandle)); 157d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 158d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller a.recycle(); 159d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 160d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mScroller = new Scroller(context, sMotionInterpolator); 161d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 162d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final ViewConfiguration vc = ViewConfiguration.get(context); 163d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mMinVelocity = vc.getScaledMinimumFlingVelocity(); 164d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mMaxVelocity = vc.getScaledMaximumFlingVelocity(); 165d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 166d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setWillNotDraw(false); 167d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 168d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 169d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void setDragHandleDrawable(Drawable d) { 170d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (d != null) { 171d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragHandleSize = d.getIntrinsicHeight(); 172d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 173d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mDragHandleSize == 0 || d == null) { 174d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float density = getResources().getDisplayMetrics().density; 175d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragHandleSize = (int) (DRAG_HANDLE_DEFAULT_SIZE * density + 0.5f); 176d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 177d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHandleDrawable = d; 178d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 179d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 180d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void sendInitialListenerUpdates() { 181d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mListener != null) { 182d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller int challengeTop = mChallengeView != null ? mChallengeView.getTop() : 0; 183d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mListener.onScrollPositionChanged(mChallengeOffset, challengeTop); 184d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mListener.onScrollStateChanged(mScrollState); 185d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 186d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 187d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 188d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void setOnChallengeScrolledListener(OnChallengeScrolledListener listener) { 189d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mListener = listener; 190d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mHasLayout) { 191d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller sendInitialListenerUpdates(); 192d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 193d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 194d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 195d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 196d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void onAttachedToWindow() { 197d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super.onAttachedToWindow(); 198d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 199d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHasLayout = false; 200d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 201d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 202d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 203d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void onDetachedFromWindow() { 204d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super.onDetachedFromWindow(); 205d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 206d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller removeCallbacks(mEndScrollRunnable); 207d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHasLayout = false; 208d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 209d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 210d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // We want the duration of the page snap animation to be influenced by the distance that 211d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // the screen has to travel, however, we don't want this duration to be effected in a 212d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // purely linear fashion. Instead, we use this method to moderate the effect that the distance 213d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // of travel has on the overall snap duration. 214d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller float distanceInfluenceForSnapDuration(float f) { 215d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller f -= 0.5f; // center the values about 0. 216d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller f *= 0.3f * Math.PI / 2.0f; 217d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return (float) Math.sin(f); 218d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 219d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 220d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller void setScrollState(int state) { 221d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mScrollState != state) { 222d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mScrollState = state; 223d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 224d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mListener != null) { 225d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mListener.onScrollStateChanged(state); 226d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 227d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 228d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 229d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 230d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller void completeChallengeScroll() { 231d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setChallengeShowing(mChallengeOffset != 0); 232d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setScrollState(SCROLL_STATE_IDLE); 233d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 234d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 235d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 236d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * Animate the bottom edge of the challenge view to the given position. 237d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 238d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param y desired final position for the bottom edge of the challenge view in px 239d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param velocity velocity in 240d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 241d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller void animateChallengeTo(int y, int velocity) { 242d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) { 243d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Nothing to do. 244d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return; 245d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 246d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller int sy = mChallengeView.getBottom(); 247d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller int dy = y - sy; 248d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (dy == 0) { 249d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller completeChallengeScroll(); 250d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return; 251d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 252d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 253d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setScrollState(SCROLL_STATE_SETTLING); 254d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 255d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int childHeight = mChallengeView.getHeight(); 256d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int halfHeight = childHeight / 2; 257d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float distanceRatio = Math.min(1f, 1.0f * Math.abs(dy) / childHeight); 258d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float distance = halfHeight + halfHeight * 259d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller distanceInfluenceForSnapDuration(distanceRatio); 260d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 261d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller int duration = 0; 262d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller velocity = Math.abs(velocity); 263d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (velocity > 0) { 264d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller duration = 4 * Math.round(1000 * Math.abs(distance / velocity)); 265d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } else { 266d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float childDelta = (float) Math.abs(dy) / childHeight; 267d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller duration = (int) ((childDelta + 1) * 100); 268d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 269d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller duration = Math.min(duration, MAX_SETTLE_DURATION); 270d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 271d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mScroller.startScroll(0, sy, 0, dy, duration); 272d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller postInvalidateOnAnimation(); 273d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 274d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 275d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void setChallengeShowing(boolean showChallenge) { 276d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeShowing != showChallenge) { 277d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeShowing = showChallenge; 278d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView != null) { 279d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView.setVisibility(showChallenge ? VISIBLE : INVISIBLE); 280d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 281d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 282d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 283d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 284d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 285d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @return true if the challenge is at all visible. 286d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 287d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public boolean isChallengeShowing() { 288d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return mChallengeShowing; 289d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 290d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 291d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 29219a5267003e7dc70100a4bd4f1f449523b2ff38bJim Miller public boolean isChallengeOverlapping() { 29319a5267003e7dc70100a4bd4f1f449523b2ff38bJim Miller return mChallengeShowing; 29419a5267003e7dc70100a4bd4f1f449523b2ff38bJim Miller } 29519a5267003e7dc70100a4bd4f1f449523b2ff38bJim Miller 29619a5267003e7dc70100a4bd4f1f449523b2ff38bJim Miller @Override 297d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void requestDisallowInterceptTouchEvent(boolean allowIntercept) { 298d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // We'll intercept whoever we feel like! ...as long as it isn't a challenge view. 299d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // If there are one or more pointers in the challenge view before we take over 300d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // touch events, onInterceptTouchEvent will set mBlockDrag. 301d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 302d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 303d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 304d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public boolean onInterceptTouchEvent(MotionEvent ev) { 305d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mVelocityTracker == null) { 306d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker = VelocityTracker.obtain(); 307d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 308d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker.addMovement(ev); 309d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 310d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int action = ev.getActionMasked(); 311d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller switch (action) { 312022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller case MotionEvent.ACTION_DOWN: 313022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller mLastTouchY = ev.getY(); 314022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller break; 315022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller 316d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_CANCEL: 317d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_UP: 318d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller resetTouch(); 319d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 320d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 321d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_MOVE: 322d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int count = ev.getPointerCount(); 323d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller for (int i = 0; i < count; i++) { 324d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float x = ev.getX(i); 325d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float y = ev.getY(i); 326d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 327022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller if ((isInDragHandle(x, y) || crossedDragHandle(x, y, mLastTouchY) || 328d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller (isInChallengeView(x, y) && mScrollState == SCROLL_STATE_SETTLING)) && 329d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mActivePointerId == INVALID_POINTER) { 330d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mActivePointerId = ev.getPointerId(i); 331d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mLastTouchY = y; 332d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragging = true; 333d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } else if (isInChallengeView(x, y)) { 334d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mBlockDrag = true; 335d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 336d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 337d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 338d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 339d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 340d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mBlockDrag) { 341d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mActivePointerId = INVALID_POINTER; 342d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragging = false; 343d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 344d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 345d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return mDragging; 346d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 347d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 348d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void resetTouch() { 349d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker.recycle(); 350d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker = null; 351d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mActivePointerId = INVALID_POINTER; 352d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragging = mBlockDrag = false; 353d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 354d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 355d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 356d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public boolean onTouchEvent(MotionEvent ev) { 357d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mVelocityTracker == null) { 358d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker = VelocityTracker.obtain(); 359d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 360d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker.addMovement(ev); 361d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 362d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int action = ev.getActionMasked(); 363d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller switch (action) { 364d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_CANCEL: 365d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mDragging) { 366d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller showChallenge(0); 367d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 368d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller resetTouch(); 369d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 370d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 371d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_POINTER_UP: 372d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mActivePointerId != ev.getPointerId(ev.getActionIndex())) { 373d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 374d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 375d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_UP: 376d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mDragging) { 377d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker.computeCurrentVelocity(1000, mMaxVelocity); 378d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller showChallenge((int) mVelocityTracker.getYVelocity(mActivePointerId)); 379d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 380d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller resetTouch(); 381d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 382d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 383d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_MOVE: 384d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (!mDragging && !mBlockDrag) { 385d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int count = ev.getPointerCount(); 386d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller for (int i = 0; i < count; i++) { 387d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float x = ev.getX(i); 388d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float y = ev.getY(i); 389d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 390022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller if ((isInDragHandle(x, y) || crossedDragHandle(x, y, mLastTouchY) || 391d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller (isInChallengeView(x, y) && mScrollState == SCROLL_STATE_SETTLING)) 392d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller && mActivePointerId == INVALID_POINTER) { 393d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mActivePointerId = ev.getPointerId(i); 394d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragging = true; 395d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 396d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 397d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 398d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 399d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Not an else; this can be set above. 400d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mDragging) { 401d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // No-op if already in this state, but set it here in case we arrived 402d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // at this point from either intercept or the above. 403d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setScrollState(SCROLL_STATE_DRAGGING); 404d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 405d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int index = ev.findPointerIndex(mActivePointerId); 406d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (index < 0) { 407d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Oops, bogus state. We lost some touch events somewhere. 408d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Just drop it with no velocity and let things settle. 409d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller resetTouch(); 410d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller showChallenge(0); 411d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return true; 412d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 413022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller final float y = Math.max(ev.getY(index), getChallengeOpenedTop()); 414d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float delta = y - mLastTouchY; 415d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int idelta = (int) delta; 416d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Don't lose the rounded component 417d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mLastTouchY = y + delta - idelta; 418d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 419d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller moveChallengeBy(idelta); 420d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 421d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 422d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 423d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return true; 424d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 425d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 426d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean isInChallengeView(float x, float y) { 427d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) return false; 428d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 429d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return x >= mChallengeView.getLeft() && y >= mChallengeView.getTop() && 430d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller x < mChallengeView.getRight() && y < mChallengeView.getBottom(); 431d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 432d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 433d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean isInDragHandle(float x, float y) { 434d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) return false; 435d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 436d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return x >= 0 && y >= mChallengeView.getTop() && x < getWidth() && 437d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller y < mChallengeView.getTop() + mDragHandleSize; 438d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 439d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 440022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller private boolean crossedDragHandle(float x, float y, float lastY) { 441022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller final int challengeTop = mChallengeView.getTop(); 442022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller return x >= 0 && x < getWidth() && lastY < challengeTop && 443022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller y > challengeTop + mDragHandleSize; 444022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller } 445022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller 446d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 447d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller protected void onMeasure(int widthSpec, int heightSpec) { 448d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (MeasureSpec.getMode(widthSpec) != MeasureSpec.EXACTLY || 449d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller MeasureSpec.getMode(heightSpec) != MeasureSpec.EXACTLY) { 450d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller throw new IllegalArgumentException( 451d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller "SlidingChallengeLayout must be measured with an exact size"); 452d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 453d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 454d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int width = MeasureSpec.getSize(widthSpec); 455d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int height = MeasureSpec.getSize(heightSpec); 456d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setMeasuredDimension(width, height); 457d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 458d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Find one and only one challenge view. 459d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final View oldChallengeView = mChallengeView; 460d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView = null; 461d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int count = getChildCount(); 462d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller for (int i = 0; i < count; i++) { 463d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final View child = getChildAt(i); 464d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 465d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 466d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (lp.isChallenge) { 467d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView != null) { 468d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller throw new IllegalStateException( 469d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller "There may only be one child with layout_isChallenge=\"true\""); 470d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 471d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView = child; 472d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView != oldChallengeView) { 473d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView.setVisibility(mChallengeShowing ? VISIBLE : INVISIBLE); 474d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 475d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 476d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 477d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (child.getVisibility() == GONE) continue; 478d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 479d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller measureChildWithMargins(child, widthSpec, 0, heightSpec, 0); 480d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 481d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 482d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 483d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 484d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller protected void onLayout(boolean changed, int l, int t, int r, int b) { 485d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int paddingLeft = getPaddingLeft(); 486d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int paddingTop = getPaddingTop(); 487d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int paddingRight = getPaddingRight(); 488d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int paddingBottom = getPaddingBottom(); 489d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int width = r - l; 490d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int height = b - t; 491d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 492d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int count = getChildCount(); 493d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller for (int i = 0; i < count; i++) { 494d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final View child = getChildAt(i); 495d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 496d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (child.getVisibility() == GONE) continue; 497d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 498d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 499d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 500d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (lp.isChallenge) { 501d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Challenge views pin to the bottom, offset by a portion of their height, 502d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // and center horizontally. 503d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int center = (paddingLeft + width - paddingRight) / 2; 504d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int childWidth = child.getMeasuredWidth(); 505d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int childHeight = child.getMeasuredHeight(); 506d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int left = center - childWidth / 2; 507d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int layoutBottom = height - paddingBottom - lp.bottomMargin; 508d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // We use the top of the challenge view to position the handle, so 509d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // we never want less than the handle size showing at the bottom. 510d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int bottom = layoutBottom + (int) ((childHeight - mDragHandleSize) 511d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * (1 - mChallengeOffset)); 512d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller float offset = 1.f - (bottom - layoutBottom) / childHeight; 513d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller child.setAlpha(offset); 514d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller child.layout(left, bottom - childHeight, left + childWidth, bottom); 515d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } else { 516d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Non-challenge views lay out from the upper left, layered. 517d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller child.layout(paddingLeft + lp.leftMargin, 518d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller paddingTop + lp.topMargin, 519d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller paddingLeft + child.getMeasuredWidth(), 520d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller paddingTop + child.getMeasuredHeight()); 521d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 522d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 523d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 524d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (!mHasLayout) { 525d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // We want to trigger the initial listener updates outside of layout pass, 526d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // in case the listeners trigger requestLayout(). 527d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller post(new Runnable() { 528d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 529d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void run() { 530d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller sendInitialListenerUpdates(); 531d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 532d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller }); 533d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 534d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHasLayout = true; 535d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 536d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 537d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void computeScroll() { 538d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super.computeScroll(); 539d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 540d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (!mScroller.isFinished()) { 541d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) { 542d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Can't scroll if the view is missing. 543d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller Log.e(TAG, "Challenge view missing in computeScroll"); 544d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mScroller.abortAnimation(); 545d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return; 546d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 547d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 548d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mScroller.computeScrollOffset(); 549d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller moveChallengeTo(mScroller.getCurrY()); 550d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 551d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mScroller.isFinished()) { 552d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller post(mEndScrollRunnable); 553d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 554d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 555d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 556d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 557d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 558d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void draw(Canvas c) { 559d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super.draw(c); 56086b6357e5eb91950eac7de7ffe29e5a4ad32903bJohn Spurlock if (mChallengeOffset < 1.f 56186b6357e5eb91950eac7de7ffe29e5a4ad32903bJohn Spurlock && mChallengeView != null && mHandleDrawable != null && mShowHandle) { 562d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int top = mChallengeView.getTop(); 563d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHandleDrawable.setBounds(0, top, getWidth(), top + mDragHandleSize); 564d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float alpha = sHandleFadeInterpolator.getInterpolation(1 - mChallengeOffset); 565d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHandleDrawable.setAlpha((int) (alpha * 0xFF)); 566d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHandleDrawable.draw(c); 567d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 568d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 569d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 570d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 571d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * Move the bottom edge of mChallengeView to a new position and notify the listener 572d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * if it represents a change in position. Changes made through this method will 573d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * be stable across layout passes. If this method is called before first layout of 574d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * this SlidingChallengeLayout it will have no effect. 575d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 576d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param bottom New bottom edge in px in this SlidingChallengeLayout's coordinate system. 577d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @return true if the challenge view was moved 578d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 579d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean moveChallengeTo(int bottom) { 580d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null || !mHasLayout) { 581d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return false; 582d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 583d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 584d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int bottomMargin = ((LayoutParams) mChallengeView.getLayoutParams()).bottomMargin; 585d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int layoutBottom = getHeight() - getPaddingBottom() - bottomMargin; 586d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int challengeHeight = mChallengeView.getHeight(); 587d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 588d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller bottom = Math.max(layoutBottom, 589d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller Math.min(bottom, layoutBottom + challengeHeight - mDragHandleSize)); 590d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 591d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller float offset = 1.f - (float) (bottom - layoutBottom) / (challengeHeight - mDragHandleSize); 592d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeOffset = offset; 593d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (offset > 0 && !mChallengeShowing) { 594d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setChallengeShowing(true); 595d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 596d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 597d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView.layout(mChallengeView.getLeft(), 598d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller bottom - mChallengeView.getHeight(), mChallengeView.getRight(), bottom); 599d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 600d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView.setAlpha(offset); 601d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mListener != null) { 602d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mListener.onScrollPositionChanged(offset, mChallengeView.getTop()); 603d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 604d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller postInvalidateOnAnimation(); 605d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return true; 606d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 607d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 608d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int getChallengeBottom() { 609d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) return 0; 610d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 611d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return mChallengeView.getBottom(); 612d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 613d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 614022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller private int getChallengeOpenedTop() { 615022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller final int paddedBottom = getHeight() - getPaddingBottom(); 616022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller if (mChallengeView == null) return paddedBottom; 617022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller 618022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller final int bottomMargin = ((LayoutParams) mChallengeView.getLayoutParams()).bottomMargin; 619022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller final int layoutBottom = paddedBottom - bottomMargin; 620022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller 621022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller return layoutBottom - mChallengeView.getHeight(); 622022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller } 623022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller 624d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void moveChallengeBy(int delta) { 625d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller moveChallengeTo(getChallengeBottom() + delta); 626d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 627d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 628d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 629d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * Show or hide the challenge view, animating it if necessary. 630d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param show true to show, false to hide 631d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 632d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void showChallenge(boolean show) { 633d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller showChallenge(show, 0); 634d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 635d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 636d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void showChallenge(int velocity) { 637d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller boolean show = false; 638d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (Math.abs(velocity) > mMinVelocity) { 639d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller show = velocity < 0; 640d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } else { 641d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller show = mChallengeOffset >= 0.5f; 642d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 643d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller showChallenge(show, velocity); 644d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 645d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 646d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void showChallenge(boolean show, int velocity) { 647d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) { 648d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setChallengeShowing(false); 649d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return; 650d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 651d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 652d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mHasLayout) { 653d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int bottomMargin = ((LayoutParams) mChallengeView.getLayoutParams()).bottomMargin; 654d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int layoutBottom = getHeight() - getPaddingBottom() - bottomMargin; 655d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller animateChallengeTo(show ? layoutBottom : 656d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller layoutBottom + mChallengeView.getHeight() - mDragHandleSize, velocity); 657d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 658d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 659d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 660d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 66119a5267003e7dc70100a4bd4f1f449523b2ff38bJim Miller public void showBouncer() { 66219a5267003e7dc70100a4bd4f1f449523b2ff38bJim Miller // TODO Block access to other views 66319a5267003e7dc70100a4bd4f1f449523b2ff38bJim Miller showChallenge(true); 66419a5267003e7dc70100a4bd4f1f449523b2ff38bJim Miller } 66519a5267003e7dc70100a4bd4f1f449523b2ff38bJim Miller 66686b6357e5eb91950eac7de7ffe29e5a4ad32903bJohn Spurlock public void showHandle(boolean show) { 66786b6357e5eb91950eac7de7ffe29e5a4ad32903bJohn Spurlock mShowHandle = show; 66886b6357e5eb91950eac7de7ffe29e5a4ad32903bJohn Spurlock invalidate(); 66986b6357e5eb91950eac7de7ffe29e5a4ad32903bJohn Spurlock } 67086b6357e5eb91950eac7de7ffe29e5a4ad32903bJohn Spurlock 67119a5267003e7dc70100a4bd4f1f449523b2ff38bJim Miller @Override 672d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public ViewGroup.LayoutParams generateLayoutParams(AttributeSet attrs) { 673d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return new LayoutParams(getContext(), attrs); 674d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 675d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 676d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 677d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 678d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return p instanceof LayoutParams ? new LayoutParams((LayoutParams) p) : 679d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller p instanceof MarginLayoutParams ? new LayoutParams((MarginLayoutParams) p) : 680d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller new LayoutParams(p); 681d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 682d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 683d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 684d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 685d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return new LayoutParams(); 686d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 687d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 688d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 689d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 690d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return p instanceof LayoutParams; 691d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 692d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 693d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public static class LayoutParams extends MarginLayoutParams { 694d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public boolean isChallenge = false; 695d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 696d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams() { 697d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller this(MATCH_PARENT, WRAP_CONTENT); 698d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 699d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 700d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams(int width, int height) { 701d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(width, height); 702d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 703d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 704d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams(android.view.ViewGroup.LayoutParams source) { 705d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(source); 706d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 707d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 708d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams(MarginLayoutParams source) { 709d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(source); 710d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 711d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 712d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams(LayoutParams source) { 713d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(source); 714d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 715d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller isChallenge = source.isChallenge; 716d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 717d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 718d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams(Context c, AttributeSet attrs) { 719d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(c, attrs); 720d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 721d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final TypedArray a = c.obtainStyledAttributes(attrs, 722d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller R.styleable.SlidingChallengeLayout_Layout); 723d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller isChallenge = a.getBoolean(R.styleable.SlidingChallengeLayout_Layout_layout_isChallenge, 724d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller false); 725d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller a.recycle(); 726d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 727d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 728d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller} 729