SlidingChallengeLayout.java revision 022554e3da6e496524387a5d3ecc67ef9749b587
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 */ 39d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Millerpublic class SlidingChallengeLayout extends ViewGroup { 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; 45d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 46d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Initialized during measurement from child layoutparams 47d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private View mChallengeView; 48d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 49d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Range: 0 (fully hidden) to 1 (fully visible) 50d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private float mChallengeOffset = 1.f; 51d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean mChallengeShowing = true; 52d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 53d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private final Scroller mScroller; 54d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int mScrollState; 55d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private OnChallengeScrolledListener mListener; 56d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 57d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public static final int SCROLL_STATE_IDLE = 0; 58d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public static final int SCROLL_STATE_DRAGGING = 1; 59d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public static final int SCROLL_STATE_SETTLING = 2; 60d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 61d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private static final int MAX_SETTLE_DURATION = 600; // ms 62d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 63d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // ID of the pointer in charge of a current drag 64d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int mActivePointerId = INVALID_POINTER; 65d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private static final int INVALID_POINTER = -1; 66d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 67d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // True if the user is currently dragging the slider 68d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean mDragging; 69d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // True if the user may not drag until a new gesture begins 70d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean mBlockDrag; 71d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 72d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private VelocityTracker mVelocityTracker; 73d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int mMinVelocity; 74d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int mMaxVelocity; 75d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private float mLastTouchY; 76d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int mDragHandleSize; 77d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 78d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private static final int DRAG_HANDLE_DEFAULT_SIZE = 32; // dp 79d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 80d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // True if at least one layout pass has happened since the view was attached. 81d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean mHasLayout; 82d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 83d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private static final Interpolator sMotionInterpolator = new Interpolator() { 84d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public float getInterpolation(float t) { 85d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller t -= 1.0f; 86d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return t * t * t * t * t + 1.0f; 87d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 88d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller }; 89d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 90d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private static final Interpolator sHandleFadeInterpolator = new Interpolator() { 91d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public float getInterpolation(float t) { 92d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return t * t; 93d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 94d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller }; 95d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 96d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private final Runnable mEndScrollRunnable = new Runnable () { 97d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void run() { 98d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller completeChallengeScroll(); 99d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 100d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller }; 101d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 102d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 103d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * Listener interface that reports changes in scroll state of the challenge area. 104d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 105d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public interface OnChallengeScrolledListener { 106d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 107d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * The scroll state itself changed. 108d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 109d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <p>scrollState will be one of the following:</p> 110d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 111d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <ul> 112d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <li><code>SCROLL_STATE_IDLE</code> - The challenge area is stationary.</li> 113d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <li><code>SCROLL_STATE_DRAGGING</code> - The user is actively dragging 114d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * the challenge area.</li> 115d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <li><code>SCROLL_STATE_SETTLING</code> - The challenge area is animating 116d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * into place.</li> 117d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * </ul> 118d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 119d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <p>Do not perform expensive operations (e.g. layout) 120d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * while the scroll state is not <code>SCROLL_STATE_IDLE</code>.</p> 121d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 122d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param scrollState The new scroll state of the challenge area. 123d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 124d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void onScrollStateChanged(int scrollState); 125d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 126d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 127d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * The precise position of the challenge area has changed. 128d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 129d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * <p>NOTE: It is NOT safe to modify layout or call any View methods that may 130d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * result in a requestLayout anywhere in your view hierarchy as a result of this call. 131d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * It may be called during drawing.</p> 132d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 133d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param scrollPosition New relative position of the challenge area. 134d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 1.f = fully visible/ready to be interacted with. 135d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 0.f = fully invisible/inaccessible to the user. 136d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param challengeTop Position of the top edge of the challenge view in px in the 137d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * SlidingChallengeLayout's coordinate system. 138d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 139d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void onScrollPositionChanged(float scrollPosition, int challengeTop); 140d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 141d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 142d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public SlidingChallengeLayout(Context context) { 143d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller this(context, null); 144d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 145d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 146d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public SlidingChallengeLayout(Context context, AttributeSet attrs) { 147d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller this(context, attrs, 0); 148d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 149d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 150d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public SlidingChallengeLayout(Context context, AttributeSet attrs, int defStyle) { 151d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(context, attrs, defStyle); 152d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 153d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final TypedArray a = context.obtainStyledAttributes(attrs, 154d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller R.styleable.SlidingChallengeLayout, defStyle, 0); 155d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setDragHandleDrawable(a.getDrawable(R.styleable.SlidingChallengeLayout_dragHandle)); 156d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 157d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller a.recycle(); 158d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 159d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mScroller = new Scroller(context, sMotionInterpolator); 160d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 161d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final ViewConfiguration vc = ViewConfiguration.get(context); 162d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mMinVelocity = vc.getScaledMinimumFlingVelocity(); 163d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mMaxVelocity = vc.getScaledMaximumFlingVelocity(); 164d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 165d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setWillNotDraw(false); 166d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 167d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 168d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void setDragHandleDrawable(Drawable d) { 169d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (d != null) { 170d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragHandleSize = d.getIntrinsicHeight(); 171d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 172d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mDragHandleSize == 0 || d == null) { 173d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float density = getResources().getDisplayMetrics().density; 174d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragHandleSize = (int) (DRAG_HANDLE_DEFAULT_SIZE * density + 0.5f); 175d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 176d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHandleDrawable = d; 177d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 178d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 179d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void sendInitialListenerUpdates() { 180d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mListener != null) { 181d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller int challengeTop = mChallengeView != null ? mChallengeView.getTop() : 0; 182d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mListener.onScrollPositionChanged(mChallengeOffset, challengeTop); 183d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mListener.onScrollStateChanged(mScrollState); 184d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 185d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 186d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 187d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void setOnChallengeScrolledListener(OnChallengeScrolledListener listener) { 188d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mListener = listener; 189d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mHasLayout) { 190d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller sendInitialListenerUpdates(); 191d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 192d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 193d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 194d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 195d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void onAttachedToWindow() { 196d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super.onAttachedToWindow(); 197d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 198d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHasLayout = false; 199d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 200d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 201d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 202d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void onDetachedFromWindow() { 203d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super.onDetachedFromWindow(); 204d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 205d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller removeCallbacks(mEndScrollRunnable); 206d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHasLayout = false; 207d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 208d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 209d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // We want the duration of the page snap animation to be influenced by the distance that 210d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // the screen has to travel, however, we don't want this duration to be effected in a 211d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // purely linear fashion. Instead, we use this method to moderate the effect that the distance 212d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // of travel has on the overall snap duration. 213d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller float distanceInfluenceForSnapDuration(float f) { 214d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller f -= 0.5f; // center the values about 0. 215d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller f *= 0.3f * Math.PI / 2.0f; 216d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return (float) Math.sin(f); 217d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 218d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 219d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller void setScrollState(int state) { 220d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mScrollState != state) { 221d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mScrollState = state; 222d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 223d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mListener != null) { 224d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mListener.onScrollStateChanged(state); 225d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 226d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 227d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 228d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 229d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller void completeChallengeScroll() { 230d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setChallengeShowing(mChallengeOffset != 0); 231d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setScrollState(SCROLL_STATE_IDLE); 232d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 233d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 234d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 235d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * Animate the bottom edge of the challenge view to the given position. 236d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 237d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param y desired final position for the bottom edge of the challenge view in px 238d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param velocity velocity in 239d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 240d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller void animateChallengeTo(int y, int velocity) { 241d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) { 242d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Nothing to do. 243d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return; 244d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 245d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller int sy = mChallengeView.getBottom(); 246d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller int dy = y - sy; 247d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (dy == 0) { 248d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller completeChallengeScroll(); 249d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return; 250d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 251d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 252d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setScrollState(SCROLL_STATE_SETTLING); 253d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 254d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int childHeight = mChallengeView.getHeight(); 255d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int halfHeight = childHeight / 2; 256d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float distanceRatio = Math.min(1f, 1.0f * Math.abs(dy) / childHeight); 257d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float distance = halfHeight + halfHeight * 258d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller distanceInfluenceForSnapDuration(distanceRatio); 259d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 260d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller int duration = 0; 261d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller velocity = Math.abs(velocity); 262d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (velocity > 0) { 263d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller duration = 4 * Math.round(1000 * Math.abs(distance / velocity)); 264d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } else { 265d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float childDelta = (float) Math.abs(dy) / childHeight; 266d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller duration = (int) ((childDelta + 1) * 100); 267d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 268d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller duration = Math.min(duration, MAX_SETTLE_DURATION); 269d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 270d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mScroller.startScroll(0, sy, 0, dy, duration); 271d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller postInvalidateOnAnimation(); 272d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 273d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 274d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void setChallengeShowing(boolean showChallenge) { 275d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeShowing != showChallenge) { 276d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeShowing = showChallenge; 277d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView != null) { 278d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView.setVisibility(showChallenge ? VISIBLE : INVISIBLE); 279d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 280d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 281d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 282d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 283d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 284d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @return true if the challenge is at all visible. 285d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 286d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public boolean isChallengeShowing() { 287d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return mChallengeShowing; 288d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 289d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 290d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 291d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void requestDisallowInterceptTouchEvent(boolean allowIntercept) { 292d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // We'll intercept whoever we feel like! ...as long as it isn't a challenge view. 293d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // If there are one or more pointers in the challenge view before we take over 294d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // touch events, onInterceptTouchEvent will set mBlockDrag. 295d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 296d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 297d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 298d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public boolean onInterceptTouchEvent(MotionEvent ev) { 299d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mVelocityTracker == null) { 300d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker = VelocityTracker.obtain(); 301d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 302d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker.addMovement(ev); 303d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 304d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int action = ev.getActionMasked(); 305d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller switch (action) { 306022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller case MotionEvent.ACTION_DOWN: 307022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller mLastTouchY = ev.getY(); 308022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller break; 309022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller 310d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_CANCEL: 311d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_UP: 312d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller resetTouch(); 313d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 314d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 315d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_MOVE: 316d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int count = ev.getPointerCount(); 317d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller for (int i = 0; i < count; i++) { 318d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float x = ev.getX(i); 319d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float y = ev.getY(i); 320d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 321022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller if ((isInDragHandle(x, y) || crossedDragHandle(x, y, mLastTouchY) || 322d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller (isInChallengeView(x, y) && mScrollState == SCROLL_STATE_SETTLING)) && 323d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mActivePointerId == INVALID_POINTER) { 324d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mActivePointerId = ev.getPointerId(i); 325d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mLastTouchY = y; 326d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragging = true; 327d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } else if (isInChallengeView(x, y)) { 328d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mBlockDrag = true; 329d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 330d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 331d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 332d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 333d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 334d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mBlockDrag) { 335d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mActivePointerId = INVALID_POINTER; 336d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragging = false; 337d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 338d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 339d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return mDragging; 340d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 341d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 342d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void resetTouch() { 343d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker.recycle(); 344d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker = null; 345d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mActivePointerId = INVALID_POINTER; 346d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragging = mBlockDrag = false; 347d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 348d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 349d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 350d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public boolean onTouchEvent(MotionEvent ev) { 351d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mVelocityTracker == null) { 352d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker = VelocityTracker.obtain(); 353d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 354d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker.addMovement(ev); 355d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 356d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int action = ev.getActionMasked(); 357d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller switch (action) { 358d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_CANCEL: 359d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mDragging) { 360d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller showChallenge(0); 361d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 362d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller resetTouch(); 363d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 364d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 365d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_POINTER_UP: 366d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mActivePointerId != ev.getPointerId(ev.getActionIndex())) { 367d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 368d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 369d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_UP: 370d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mDragging) { 371d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mVelocityTracker.computeCurrentVelocity(1000, mMaxVelocity); 372d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller showChallenge((int) mVelocityTracker.getYVelocity(mActivePointerId)); 373d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 374d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller resetTouch(); 375d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 376d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 377d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller case MotionEvent.ACTION_MOVE: 378d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (!mDragging && !mBlockDrag) { 379d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int count = ev.getPointerCount(); 380d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller for (int i = 0; i < count; i++) { 381d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float x = ev.getX(i); 382d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float y = ev.getY(i); 383d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 384022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller if ((isInDragHandle(x, y) || crossedDragHandle(x, y, mLastTouchY) || 385d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller (isInChallengeView(x, y) && mScrollState == SCROLL_STATE_SETTLING)) 386d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller && mActivePointerId == INVALID_POINTER) { 387d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mActivePointerId = ev.getPointerId(i); 388d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mDragging = true; 389d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 390d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 391d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 392d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 393d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Not an else; this can be set above. 394d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mDragging) { 395d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // No-op if already in this state, but set it here in case we arrived 396d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // at this point from either intercept or the above. 397d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setScrollState(SCROLL_STATE_DRAGGING); 398d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 399d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int index = ev.findPointerIndex(mActivePointerId); 400d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (index < 0) { 401d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Oops, bogus state. We lost some touch events somewhere. 402d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Just drop it with no velocity and let things settle. 403d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller resetTouch(); 404d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller showChallenge(0); 405d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return true; 406d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 407022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller final float y = Math.max(ev.getY(index), getChallengeOpenedTop()); 408d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float delta = y - mLastTouchY; 409d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int idelta = (int) delta; 410d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Don't lose the rounded component 411d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mLastTouchY = y + delta - idelta; 412d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 413d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller moveChallengeBy(idelta); 414d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 415d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller break; 416d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 417d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return true; 418d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 419d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 420d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean isInChallengeView(float x, float y) { 421d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) return false; 422d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 423d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return x >= mChallengeView.getLeft() && y >= mChallengeView.getTop() && 424d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller x < mChallengeView.getRight() && y < mChallengeView.getBottom(); 425d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 426d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 427d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean isInDragHandle(float x, float y) { 428d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) return false; 429d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 430d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return x >= 0 && y >= mChallengeView.getTop() && x < getWidth() && 431d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller y < mChallengeView.getTop() + mDragHandleSize; 432d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 433d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 434022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller private boolean crossedDragHandle(float x, float y, float lastY) { 435022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller final int challengeTop = mChallengeView.getTop(); 436022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller return x >= 0 && x < getWidth() && lastY < challengeTop && 437022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller y > challengeTop + mDragHandleSize; 438022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller } 439022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller 440d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 441d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller protected void onMeasure(int widthSpec, int heightSpec) { 442d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (MeasureSpec.getMode(widthSpec) != MeasureSpec.EXACTLY || 443d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller MeasureSpec.getMode(heightSpec) != MeasureSpec.EXACTLY) { 444d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller throw new IllegalArgumentException( 445d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller "SlidingChallengeLayout must be measured with an exact size"); 446d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 447d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 448d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int width = MeasureSpec.getSize(widthSpec); 449d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int height = MeasureSpec.getSize(heightSpec); 450d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setMeasuredDimension(width, height); 451d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 452d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Find one and only one challenge view. 453d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final View oldChallengeView = mChallengeView; 454d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView = null; 455d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int count = getChildCount(); 456d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller for (int i = 0; i < count; i++) { 457d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final View child = getChildAt(i); 458d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 459d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 460d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (lp.isChallenge) { 461d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView != null) { 462d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller throw new IllegalStateException( 463d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller "There may only be one child with layout_isChallenge=\"true\""); 464d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 465d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView = child; 466d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView != oldChallengeView) { 467d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView.setVisibility(mChallengeShowing ? VISIBLE : INVISIBLE); 468d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 469d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 470d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 471d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (child.getVisibility() == GONE) continue; 472d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 473d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller measureChildWithMargins(child, widthSpec, 0, heightSpec, 0); 474d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 475d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 476d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 477d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 478d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller protected void onLayout(boolean changed, int l, int t, int r, int b) { 479d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int paddingLeft = getPaddingLeft(); 480d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int paddingTop = getPaddingTop(); 481d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int paddingRight = getPaddingRight(); 482d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int paddingBottom = getPaddingBottom(); 483d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int width = r - l; 484d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int height = b - t; 485d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 486d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int count = getChildCount(); 487d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller for (int i = 0; i < count; i++) { 488d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final View child = getChildAt(i); 489d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 490d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (child.getVisibility() == GONE) continue; 491d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 492d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 493d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 494d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (lp.isChallenge) { 495d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Challenge views pin to the bottom, offset by a portion of their height, 496d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // and center horizontally. 497d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int center = (paddingLeft + width - paddingRight) / 2; 498d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int childWidth = child.getMeasuredWidth(); 499d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int childHeight = child.getMeasuredHeight(); 500d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int left = center - childWidth / 2; 501d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int layoutBottom = height - paddingBottom - lp.bottomMargin; 502d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // We use the top of the challenge view to position the handle, so 503d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // we never want less than the handle size showing at the bottom. 504d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int bottom = layoutBottom + (int) ((childHeight - mDragHandleSize) 505d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * (1 - mChallengeOffset)); 506d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller float offset = 1.f - (bottom - layoutBottom) / childHeight; 507d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller child.setAlpha(offset); 508d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller child.layout(left, bottom - childHeight, left + childWidth, bottom); 509d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } else { 510d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Non-challenge views lay out from the upper left, layered. 511d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller child.layout(paddingLeft + lp.leftMargin, 512d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller paddingTop + lp.topMargin, 513d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller paddingLeft + child.getMeasuredWidth(), 514d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller paddingTop + child.getMeasuredHeight()); 515d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 516d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 517d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 518d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (!mHasLayout) { 519d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // We want to trigger the initial listener updates outside of layout pass, 520d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // in case the listeners trigger requestLayout(). 521d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller post(new Runnable() { 522d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 523d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void run() { 524d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller sendInitialListenerUpdates(); 525d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 526d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller }); 527d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 528d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHasLayout = true; 529d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 530d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 531d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void computeScroll() { 532d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super.computeScroll(); 533d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 534d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (!mScroller.isFinished()) { 535d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) { 536d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller // Can't scroll if the view is missing. 537d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller Log.e(TAG, "Challenge view missing in computeScroll"); 538d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mScroller.abortAnimation(); 539d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return; 540d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 541d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 542d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mScroller.computeScrollOffset(); 543d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller moveChallengeTo(mScroller.getCurrY()); 544d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 545d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mScroller.isFinished()) { 546d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller post(mEndScrollRunnable); 547d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 548d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 549d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 550d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 551d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 552d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void draw(Canvas c) { 553d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super.draw(c); 554d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeOffset < 1.f && mChallengeView != null && mHandleDrawable != null) { 555d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int top = mChallengeView.getTop(); 556d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHandleDrawable.setBounds(0, top, getWidth(), top + mDragHandleSize); 557d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final float alpha = sHandleFadeInterpolator.getInterpolation(1 - mChallengeOffset); 558d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHandleDrawable.setAlpha((int) (alpha * 0xFF)); 559d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mHandleDrawable.draw(c); 560d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 561d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 562d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 563d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 564d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * Move the bottom edge of mChallengeView to a new position and notify the listener 565d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * if it represents a change in position. Changes made through this method will 566d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * be stable across layout passes. If this method is called before first layout of 567d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * this SlidingChallengeLayout it will have no effect. 568d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * 569d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param bottom New bottom edge in px in this SlidingChallengeLayout's coordinate system. 570d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @return true if the challenge view was moved 571d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 572d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private boolean moveChallengeTo(int bottom) { 573d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null || !mHasLayout) { 574d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return false; 575d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 576d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 577d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int bottomMargin = ((LayoutParams) mChallengeView.getLayoutParams()).bottomMargin; 578d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int layoutBottom = getHeight() - getPaddingBottom() - bottomMargin; 579d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int challengeHeight = mChallengeView.getHeight(); 580d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 581d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller bottom = Math.max(layoutBottom, 582d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller Math.min(bottom, layoutBottom + challengeHeight - mDragHandleSize)); 583d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 584d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller float offset = 1.f - (float) (bottom - layoutBottom) / (challengeHeight - mDragHandleSize); 585d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeOffset = offset; 586d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (offset > 0 && !mChallengeShowing) { 587d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setChallengeShowing(true); 588d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 589d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 590d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView.layout(mChallengeView.getLeft(), 591d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller bottom - mChallengeView.getHeight(), mChallengeView.getRight(), bottom); 592d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 593d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mChallengeView.setAlpha(offset); 594d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mListener != null) { 595d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller mListener.onScrollPositionChanged(offset, mChallengeView.getTop()); 596d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 597d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller postInvalidateOnAnimation(); 598d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return true; 599d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 600d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 601d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private int getChallengeBottom() { 602d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) return 0; 603d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 604d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return mChallengeView.getBottom(); 605d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 606d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 607022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller private int getChallengeOpenedTop() { 608022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller final int paddedBottom = getHeight() - getPaddingBottom(); 609022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller if (mChallengeView == null) return paddedBottom; 610022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller 611022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller final int bottomMargin = ((LayoutParams) mChallengeView.getLayoutParams()).bottomMargin; 612022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller final int layoutBottom = paddedBottom - bottomMargin; 613022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller 614022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller return layoutBottom - mChallengeView.getHeight(); 615022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller } 616022554e3da6e496524387a5d3ecc67ef9749b587Jim Miller 617d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void moveChallengeBy(int delta) { 618d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller moveChallengeTo(getChallengeBottom() + delta); 619d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 620d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 621d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller /** 622d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * Show or hide the challenge view, animating it if necessary. 623d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller * @param show true to show, false to hide 624d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller */ 625d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public void showChallenge(boolean show) { 626d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller showChallenge(show, 0); 627d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 628d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 629d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void showChallenge(int velocity) { 630d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller boolean show = false; 631d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (Math.abs(velocity) > mMinVelocity) { 632d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller show = velocity < 0; 633d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } else { 634d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller show = mChallengeOffset >= 0.5f; 635d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 636d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller showChallenge(show, velocity); 637d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 638d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 639d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller private void showChallenge(boolean show, int velocity) { 640d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mChallengeView == null) { 641d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller setChallengeShowing(false); 642d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return; 643d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 644d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 645d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller if (mHasLayout) { 646d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int bottomMargin = ((LayoutParams) mChallengeView.getLayoutParams()).bottomMargin; 647d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final int layoutBottom = getHeight() - getPaddingBottom() - bottomMargin; 648d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller animateChallengeTo(show ? layoutBottom : 649d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller layoutBottom + mChallengeView.getHeight() - mDragHandleSize, velocity); 650d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 651d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 652d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 653d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 654d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public ViewGroup.LayoutParams generateLayoutParams(AttributeSet attrs) { 655d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return new LayoutParams(getContext(), attrs); 656d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 657d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 658d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 659d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 660d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return p instanceof LayoutParams ? new LayoutParams((LayoutParams) p) : 661d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller p instanceof MarginLayoutParams ? new LayoutParams((MarginLayoutParams) p) : 662d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller new LayoutParams(p); 663d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 664d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 665d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 666d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 667d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return new LayoutParams(); 668d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 669d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 670d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller @Override 671d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 672d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller return p instanceof LayoutParams; 673d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 674d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 675d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public static class LayoutParams extends MarginLayoutParams { 676d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public boolean isChallenge = false; 677d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 678d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams() { 679d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller this(MATCH_PARENT, WRAP_CONTENT); 680d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 681d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 682d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams(int width, int height) { 683d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(width, height); 684d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 685d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 686d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams(android.view.ViewGroup.LayoutParams source) { 687d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(source); 688d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 689d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 690d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams(MarginLayoutParams source) { 691d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(source); 692d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 693d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 694d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams(LayoutParams source) { 695d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(source); 696d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 697d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller isChallenge = source.isChallenge; 698d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 699d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 700d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller public LayoutParams(Context c, AttributeSet attrs) { 701d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller super(c, attrs); 702d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller 703d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller final TypedArray a = c.obtainStyledAttributes(attrs, 704d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller R.styleable.SlidingChallengeLayout_Layout); 705d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller isChallenge = a.getBoolean(R.styleable.SlidingChallengeLayout_Layout_layout_isChallenge, 706d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller false); 707d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller a.recycle(); 708d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 709d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller } 710d6523da1ad7bae805a3dbea8d7b398d86cd3c181Jim Miller} 711