816c8e4735
Since the minheight grew, all notifications grew. Legacy custom notifications need to stay the same height though. Change-Id: I469c448014c3d3c31526466d06a60ac44838b274
599 lines
22 KiB
Java
599 lines
22 KiB
Java
/*
|
|
* Copyright (C) 2012 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
|
|
package com.android.systemui;
|
|
|
|
import android.animation.Animator;
|
|
import android.animation.AnimatorListenerAdapter;
|
|
import android.animation.ObjectAnimator;
|
|
import android.content.Context;
|
|
import android.util.Log;
|
|
import android.view.Gravity;
|
|
import android.view.HapticFeedbackConstants;
|
|
import android.view.MotionEvent;
|
|
import android.view.ScaleGestureDetector;
|
|
import android.view.ScaleGestureDetector.OnScaleGestureListener;
|
|
import android.view.VelocityTracker;
|
|
import android.view.View;
|
|
import android.view.ViewConfiguration;
|
|
|
|
import com.android.systemui.statusbar.ExpandableNotificationRow;
|
|
import com.android.systemui.statusbar.ExpandableView;
|
|
import com.android.systemui.statusbar.FlingAnimationUtils;
|
|
import com.android.systemui.statusbar.policy.ScrollAdapter;
|
|
|
|
public class ExpandHelper implements Gefingerpoken {
|
|
public interface Callback {
|
|
ExpandableView getChildAtRawPosition(float x, float y);
|
|
ExpandableView getChildAtPosition(float x, float y);
|
|
boolean canChildBeExpanded(View v);
|
|
void setUserExpandedChild(View v, boolean userExpanded);
|
|
void setUserLockedChild(View v, boolean userLocked);
|
|
void expansionStateChanged(boolean isExpanding);
|
|
}
|
|
|
|
private static final String TAG = "ExpandHelper";
|
|
protected static final boolean DEBUG = false;
|
|
protected static final boolean DEBUG_SCALE = false;
|
|
private static final float EXPAND_DURATION = 0.3f;
|
|
|
|
// Set to false to disable focus-based gestures (spread-finger vertical pull).
|
|
private static final boolean USE_DRAG = true;
|
|
// Set to false to disable scale-based gestures (both horizontal and vertical).
|
|
private static final boolean USE_SPAN = true;
|
|
// Both gestures types may be active at the same time.
|
|
// At least one gesture type should be active.
|
|
// A variant of the screwdriver gesture will emerge from either gesture type.
|
|
|
|
// amount of overstretch for maximum brightness expressed in U
|
|
// 2f: maximum brightness is stretching a 1U to 3U, or a 4U to 6U
|
|
private static final float STRETCH_INTERVAL = 2f;
|
|
|
|
@SuppressWarnings("unused")
|
|
private Context mContext;
|
|
|
|
private boolean mExpanding;
|
|
private static final int NONE = 0;
|
|
private static final int BLINDS = 1<<0;
|
|
private static final int PULL = 1<<1;
|
|
private static final int STRETCH = 1<<2;
|
|
private int mExpansionStyle = NONE;
|
|
private boolean mWatchingForPull;
|
|
private boolean mHasPopped;
|
|
private View mEventSource;
|
|
private float mOldHeight;
|
|
private float mNaturalHeight;
|
|
private float mInitialTouchFocusY;
|
|
private float mInitialTouchY;
|
|
private float mInitialTouchSpan;
|
|
private float mLastFocusY;
|
|
private float mLastSpanY;
|
|
private int mTouchSlop;
|
|
private float mLastMotionY;
|
|
private float mPullGestureMinXSpan;
|
|
private Callback mCallback;
|
|
private ScaleGestureDetector mSGD;
|
|
private ViewScaler mScaler;
|
|
private ObjectAnimator mScaleAnimation;
|
|
private boolean mEnabled = true;
|
|
private ExpandableView mResizedView;
|
|
private float mCurrentHeight;
|
|
|
|
private int mSmallSize;
|
|
private int mLargeSize;
|
|
private float mMaximumStretch;
|
|
private boolean mOnlyMovements;
|
|
|
|
private int mGravity;
|
|
|
|
private ScrollAdapter mScrollAdapter;
|
|
private FlingAnimationUtils mFlingAnimationUtils;
|
|
private VelocityTracker mVelocityTracker;
|
|
|
|
private OnScaleGestureListener mScaleGestureListener
|
|
= new ScaleGestureDetector.SimpleOnScaleGestureListener() {
|
|
@Override
|
|
public boolean onScaleBegin(ScaleGestureDetector detector) {
|
|
if (DEBUG_SCALE) Log.v(TAG, "onscalebegin()");
|
|
|
|
if (!mOnlyMovements) {
|
|
startExpanding(mResizedView, STRETCH);
|
|
}
|
|
return mExpanding;
|
|
}
|
|
|
|
@Override
|
|
public boolean onScale(ScaleGestureDetector detector) {
|
|
if (DEBUG_SCALE) Log.v(TAG, "onscale() on " + mResizedView);
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public void onScaleEnd(ScaleGestureDetector detector) {
|
|
}
|
|
};
|
|
|
|
private class ViewScaler {
|
|
ExpandableView mView;
|
|
|
|
public ViewScaler() {}
|
|
public void setView(ExpandableView v) {
|
|
mView = v;
|
|
}
|
|
public void setHeight(float h) {
|
|
if (DEBUG_SCALE) Log.v(TAG, "SetHeight: setting to " + h);
|
|
mView.setActualHeight((int) h);
|
|
mCurrentHeight = h;
|
|
}
|
|
public float getHeight() {
|
|
return mView.getActualHeight();
|
|
}
|
|
public int getNaturalHeight() {
|
|
return mView.getMaxContentHeight();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Handle expansion gestures to expand and contract children of the callback.
|
|
*
|
|
* @param context application context
|
|
* @param callback the container that holds the items to be manipulated
|
|
* @param small the smallest allowable size for the manuipulated items.
|
|
* @param large the largest allowable size for the manuipulated items.
|
|
*/
|
|
public ExpandHelper(Context context, Callback callback, int small, int large) {
|
|
mSmallSize = small;
|
|
mMaximumStretch = mSmallSize * STRETCH_INTERVAL;
|
|
mLargeSize = large;
|
|
mContext = context;
|
|
mCallback = callback;
|
|
mScaler = new ViewScaler();
|
|
mGravity = Gravity.TOP;
|
|
mScaleAnimation = ObjectAnimator.ofFloat(mScaler, "height", 0f);
|
|
mPullGestureMinXSpan = mContext.getResources().getDimension(R.dimen.pull_span_min);
|
|
|
|
final ViewConfiguration configuration = ViewConfiguration.get(mContext);
|
|
mTouchSlop = configuration.getScaledTouchSlop();
|
|
|
|
mSGD = new ScaleGestureDetector(context, mScaleGestureListener);
|
|
mFlingAnimationUtils = new FlingAnimationUtils(context, EXPAND_DURATION);
|
|
}
|
|
|
|
private void updateExpansion() {
|
|
if (DEBUG_SCALE) Log.v(TAG, "updateExpansion()");
|
|
// are we scaling or dragging?
|
|
float span = mSGD.getCurrentSpan() - mInitialTouchSpan;
|
|
span *= USE_SPAN ? 1f : 0f;
|
|
float drag = mSGD.getFocusY() - mInitialTouchFocusY;
|
|
drag *= USE_DRAG ? 1f : 0f;
|
|
drag *= mGravity == Gravity.BOTTOM ? -1f : 1f;
|
|
float pull = Math.abs(drag) + Math.abs(span) + 1f;
|
|
float hand = drag * Math.abs(drag) / pull + span * Math.abs(span) / pull;
|
|
float target = hand + mOldHeight;
|
|
float newHeight = clamp(target);
|
|
mScaler.setHeight(newHeight);
|
|
mLastFocusY = mSGD.getFocusY();
|
|
mLastSpanY = mSGD.getCurrentSpan();
|
|
}
|
|
|
|
private float clamp(float target) {
|
|
float out = target;
|
|
out = out < mSmallSize ? mSmallSize : out;
|
|
out = out > mNaturalHeight ? mNaturalHeight : out;
|
|
return out;
|
|
}
|
|
|
|
private ExpandableView findView(float x, float y) {
|
|
ExpandableView v;
|
|
if (mEventSource != null) {
|
|
int[] location = new int[2];
|
|
mEventSource.getLocationOnScreen(location);
|
|
x += location[0];
|
|
y += location[1];
|
|
v = mCallback.getChildAtRawPosition(x, y);
|
|
} else {
|
|
v = mCallback.getChildAtPosition(x, y);
|
|
}
|
|
return v;
|
|
}
|
|
|
|
private boolean isInside(View v, float x, float y) {
|
|
if (DEBUG) Log.d(TAG, "isinside (" + x + ", " + y + ")");
|
|
|
|
if (v == null) {
|
|
if (DEBUG) Log.d(TAG, "isinside null subject");
|
|
return false;
|
|
}
|
|
if (mEventSource != null) {
|
|
int[] location = new int[2];
|
|
mEventSource.getLocationOnScreen(location);
|
|
x += location[0];
|
|
y += location[1];
|
|
if (DEBUG) Log.d(TAG, " to global (" + x + ", " + y + ")");
|
|
}
|
|
int[] location = new int[2];
|
|
v.getLocationOnScreen(location);
|
|
x -= location[0];
|
|
y -= location[1];
|
|
if (DEBUG) Log.d(TAG, " to local (" + x + ", " + y + ")");
|
|
if (DEBUG) Log.d(TAG, " inside (" + v.getWidth() + ", " + v.getHeight() + ")");
|
|
boolean inside = (x > 0f && y > 0f && x < v.getWidth() & y < v.getHeight());
|
|
return inside;
|
|
}
|
|
|
|
public void setEventSource(View eventSource) {
|
|
mEventSource = eventSource;
|
|
}
|
|
|
|
public void setGravity(int gravity) {
|
|
mGravity = gravity;
|
|
}
|
|
|
|
public void setScrollAdapter(ScrollAdapter adapter) {
|
|
mScrollAdapter = adapter;
|
|
}
|
|
|
|
@Override
|
|
public boolean onInterceptTouchEvent(MotionEvent ev) {
|
|
if (!isEnabled()) {
|
|
return false;
|
|
}
|
|
trackVelocity(ev);
|
|
final int action = ev.getAction();
|
|
if (DEBUG_SCALE) Log.d(TAG, "intercept: act=" + MotionEvent.actionToString(action) +
|
|
" expanding=" + mExpanding +
|
|
(0 != (mExpansionStyle & BLINDS) ? " (blinds)" : "") +
|
|
(0 != (mExpansionStyle & PULL) ? " (pull)" : "") +
|
|
(0 != (mExpansionStyle & STRETCH) ? " (stretch)" : ""));
|
|
// check for a spread-finger vertical pull gesture
|
|
mSGD.onTouchEvent(ev);
|
|
final int x = (int) mSGD.getFocusX();
|
|
final int y = (int) mSGD.getFocusY();
|
|
|
|
mInitialTouchFocusY = y;
|
|
mInitialTouchSpan = mSGD.getCurrentSpan();
|
|
mLastFocusY = mInitialTouchFocusY;
|
|
mLastSpanY = mInitialTouchSpan;
|
|
if (DEBUG_SCALE) Log.d(TAG, "set initial span: " + mInitialTouchSpan);
|
|
|
|
if (mExpanding) {
|
|
mLastMotionY = ev.getRawY();
|
|
maybeRecycleVelocityTracker(ev);
|
|
return true;
|
|
} else {
|
|
if ((action == MotionEvent.ACTION_MOVE) && 0 != (mExpansionStyle & BLINDS)) {
|
|
// we've begun Venetian blinds style expansion
|
|
return true;
|
|
}
|
|
switch (action & MotionEvent.ACTION_MASK) {
|
|
case MotionEvent.ACTION_MOVE: {
|
|
final float xspan = mSGD.getCurrentSpanX();
|
|
if (xspan > mPullGestureMinXSpan &&
|
|
xspan > mSGD.getCurrentSpanY() && !mExpanding) {
|
|
// detect a vertical pulling gesture with fingers somewhat separated
|
|
if (DEBUG_SCALE) Log.v(TAG, "got pull gesture (xspan=" + xspan + "px)");
|
|
startExpanding(mResizedView, PULL);
|
|
mWatchingForPull = false;
|
|
}
|
|
if (mWatchingForPull) {
|
|
final float yDiff = ev.getRawY() - mInitialTouchY;
|
|
if (yDiff > mTouchSlop) {
|
|
if (DEBUG) Log.v(TAG, "got venetian gesture (dy=" + yDiff + "px)");
|
|
mWatchingForPull = false;
|
|
if (mResizedView != null && !isFullyExpanded(mResizedView)) {
|
|
if (startExpanding(mResizedView, BLINDS)) {
|
|
mLastMotionY = ev.getRawY();
|
|
mInitialTouchY = ev.getRawY();
|
|
mHasPopped = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case MotionEvent.ACTION_DOWN:
|
|
mWatchingForPull = mScrollAdapter != null &&
|
|
isInside(mScrollAdapter.getHostView(), x, y)
|
|
&& mScrollAdapter.isScrolledToTop();
|
|
mResizedView = findView(x, y);
|
|
if (mResizedView != null && !mCallback.canChildBeExpanded(mResizedView)) {
|
|
mResizedView = null;
|
|
mWatchingForPull = false;
|
|
}
|
|
mInitialTouchY = ev.getY();
|
|
break;
|
|
|
|
case MotionEvent.ACTION_CANCEL:
|
|
case MotionEvent.ACTION_UP:
|
|
if (DEBUG) Log.d(TAG, "up/cancel");
|
|
finishExpanding(false, getCurrentVelocity());
|
|
clearView();
|
|
break;
|
|
}
|
|
mLastMotionY = ev.getRawY();
|
|
maybeRecycleVelocityTracker(ev);
|
|
return mExpanding;
|
|
}
|
|
}
|
|
|
|
private void trackVelocity(MotionEvent event) {
|
|
int action = event.getActionMasked();
|
|
switch(action) {
|
|
case MotionEvent.ACTION_DOWN:
|
|
if (mVelocityTracker == null) {
|
|
mVelocityTracker = VelocityTracker.obtain();
|
|
} else {
|
|
mVelocityTracker.clear();
|
|
}
|
|
mVelocityTracker.addMovement(event);
|
|
break;
|
|
case MotionEvent.ACTION_MOVE:
|
|
if (mVelocityTracker == null) {
|
|
mVelocityTracker = VelocityTracker.obtain();
|
|
}
|
|
mVelocityTracker.addMovement(event);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
private void maybeRecycleVelocityTracker(MotionEvent event) {
|
|
if (mVelocityTracker != null && (event.getActionMasked() == MotionEvent.ACTION_CANCEL
|
|
|| event.getActionMasked() == MotionEvent.ACTION_UP)) {
|
|
mVelocityTracker.recycle();
|
|
mVelocityTracker = null;
|
|
}
|
|
}
|
|
|
|
private float getCurrentVelocity() {
|
|
if (mVelocityTracker != null) {
|
|
mVelocityTracker.computeCurrentVelocity(1000);
|
|
return mVelocityTracker.getYVelocity();
|
|
} else {
|
|
return 0f;
|
|
}
|
|
}
|
|
|
|
public void setEnabled(boolean enable) {
|
|
mEnabled = enable;
|
|
}
|
|
|
|
private boolean isEnabled() {
|
|
return mEnabled;
|
|
}
|
|
|
|
private boolean isFullyExpanded(ExpandableView underFocus) {
|
|
return underFocus.getIntrinsicHeight() == underFocus.getMaxContentHeight()
|
|
&& (!underFocus.isSummaryWithChildren() || underFocus.areChildrenExpanded());
|
|
}
|
|
|
|
@Override
|
|
public boolean onTouchEvent(MotionEvent ev) {
|
|
if (!isEnabled()) {
|
|
return false;
|
|
}
|
|
trackVelocity(ev);
|
|
final int action = ev.getActionMasked();
|
|
if (DEBUG_SCALE) Log.d(TAG, "touch: act=" + MotionEvent.actionToString(action) +
|
|
" expanding=" + mExpanding +
|
|
(0 != (mExpansionStyle & BLINDS) ? " (blinds)" : "") +
|
|
(0 != (mExpansionStyle & PULL) ? " (pull)" : "") +
|
|
(0 != (mExpansionStyle & STRETCH) ? " (stretch)" : ""));
|
|
|
|
mSGD.onTouchEvent(ev);
|
|
final int x = (int) mSGD.getFocusX();
|
|
final int y = (int) mSGD.getFocusY();
|
|
|
|
if (mOnlyMovements) {
|
|
mLastMotionY = ev.getRawY();
|
|
return false;
|
|
}
|
|
switch (action) {
|
|
case MotionEvent.ACTION_DOWN:
|
|
mWatchingForPull = mScrollAdapter != null &&
|
|
isInside(mScrollAdapter.getHostView(), x, y);
|
|
mResizedView = findView(x, y);
|
|
mInitialTouchY = ev.getY();
|
|
break;
|
|
case MotionEvent.ACTION_MOVE: {
|
|
if (mWatchingForPull) {
|
|
final float yDiff = ev.getRawY() - mInitialTouchY;
|
|
if (yDiff > mTouchSlop) {
|
|
if (DEBUG) Log.v(TAG, "got venetian gesture (dy=" + yDiff + "px)");
|
|
mWatchingForPull = false;
|
|
if (mResizedView != null && !isFullyExpanded(mResizedView)) {
|
|
if (startExpanding(mResizedView, BLINDS)) {
|
|
mInitialTouchY = ev.getRawY();
|
|
mLastMotionY = ev.getRawY();
|
|
mHasPopped = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (mExpanding && 0 != (mExpansionStyle & BLINDS)) {
|
|
final float rawHeight = ev.getRawY() - mLastMotionY + mCurrentHeight;
|
|
final float newHeight = clamp(rawHeight);
|
|
boolean isFinished = false;
|
|
boolean expanded = false;
|
|
if (rawHeight > mNaturalHeight) {
|
|
isFinished = true;
|
|
expanded = true;
|
|
}
|
|
if (rawHeight < mSmallSize) {
|
|
isFinished = true;
|
|
expanded = false;
|
|
}
|
|
|
|
if (!mHasPopped) {
|
|
if (mEventSource != null) {
|
|
mEventSource.performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY);
|
|
}
|
|
mHasPopped = true;
|
|
}
|
|
|
|
mScaler.setHeight(newHeight);
|
|
mLastMotionY = ev.getRawY();
|
|
if (isFinished) {
|
|
mCallback.expansionStateChanged(false);
|
|
} else {
|
|
mCallback.expansionStateChanged(true);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
if (mExpanding) {
|
|
|
|
// Gestural expansion is running
|
|
updateExpansion();
|
|
mLastMotionY = ev.getRawY();
|
|
return true;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case MotionEvent.ACTION_POINTER_UP:
|
|
case MotionEvent.ACTION_POINTER_DOWN:
|
|
if (DEBUG) Log.d(TAG, "pointer change");
|
|
mInitialTouchY += mSGD.getFocusY() - mLastFocusY;
|
|
mInitialTouchSpan += mSGD.getCurrentSpan() - mLastSpanY;
|
|
break;
|
|
|
|
case MotionEvent.ACTION_UP:
|
|
case MotionEvent.ACTION_CANCEL:
|
|
if (DEBUG) Log.d(TAG, "up/cancel");
|
|
finishExpanding(false, getCurrentVelocity());
|
|
clearView();
|
|
break;
|
|
}
|
|
mLastMotionY = ev.getRawY();
|
|
maybeRecycleVelocityTracker(ev);
|
|
return mResizedView != null;
|
|
}
|
|
|
|
/**
|
|
* @return True if the view is expandable, false otherwise.
|
|
*/
|
|
private boolean startExpanding(ExpandableView v, int expandType) {
|
|
if (!(v instanceof ExpandableNotificationRow)) {
|
|
return false;
|
|
}
|
|
mExpansionStyle = expandType;
|
|
if (mExpanding && v == mResizedView) {
|
|
return true;
|
|
}
|
|
mExpanding = true;
|
|
mCallback.expansionStateChanged(true);
|
|
if (DEBUG) Log.d(TAG, "scale type " + expandType + " beginning on view: " + v);
|
|
mCallback.setUserLockedChild(v, true);
|
|
mScaler.setView(v);
|
|
mOldHeight = mScaler.getHeight();
|
|
mCurrentHeight = mOldHeight;
|
|
boolean canBeExpanded = mCallback.canChildBeExpanded(v);
|
|
if (canBeExpanded) {
|
|
if (DEBUG) Log.d(TAG, "working on an expandable child");
|
|
mNaturalHeight = mScaler.getNaturalHeight();
|
|
mSmallSize = v.getMinExpandHeight();
|
|
} else {
|
|
if (DEBUG) Log.d(TAG, "working on a non-expandable child");
|
|
mNaturalHeight = mOldHeight;
|
|
}
|
|
if (DEBUG) Log.d(TAG, "got mOldHeight: " + mOldHeight +
|
|
" mNaturalHeight: " + mNaturalHeight);
|
|
return true;
|
|
}
|
|
|
|
private void finishExpanding(boolean force, float velocity) {
|
|
if (!mExpanding) return;
|
|
|
|
if (DEBUG) Log.d(TAG, "scale in finishing on view: " + mResizedView);
|
|
|
|
float currentHeight = mScaler.getHeight();
|
|
float h = mScaler.getHeight();
|
|
final boolean wasClosed = (mOldHeight == mSmallSize);
|
|
boolean nowExpanded;
|
|
int naturalHeight = mScaler.getNaturalHeight();
|
|
if (wasClosed) {
|
|
nowExpanded = (force || currentHeight > mOldHeight);
|
|
} else {
|
|
nowExpanded = !force && currentHeight >= mOldHeight;
|
|
}
|
|
nowExpanded |= mNaturalHeight == mSmallSize;
|
|
if (mScaleAnimation.isRunning()) {
|
|
mScaleAnimation.cancel();
|
|
}
|
|
mCallback.setUserExpandedChild(mResizedView, nowExpanded);
|
|
mCallback.expansionStateChanged(false);
|
|
float targetHeight = nowExpanded ? naturalHeight : mSmallSize;
|
|
if (targetHeight != currentHeight) {
|
|
mScaleAnimation.setFloatValues(targetHeight);
|
|
mScaleAnimation.setupStartValues();
|
|
final View scaledView = mResizedView;
|
|
mScaleAnimation.addListener(new AnimatorListenerAdapter() {
|
|
@Override
|
|
public void onAnimationEnd(Animator animation) {
|
|
mCallback.setUserLockedChild(scaledView, false);
|
|
mScaleAnimation.removeListener(this);
|
|
}
|
|
});
|
|
mFlingAnimationUtils.apply(mScaleAnimation, currentHeight, targetHeight, velocity);
|
|
mScaleAnimation.start();
|
|
} else {
|
|
mCallback.setUserLockedChild(mResizedView, false);
|
|
}
|
|
|
|
mExpanding = false;
|
|
mExpansionStyle = NONE;
|
|
|
|
if (DEBUG) Log.d(TAG, "wasClosed is: " + wasClosed);
|
|
if (DEBUG) Log.d(TAG, "currentHeight is: " + currentHeight);
|
|
if (DEBUG) Log.d(TAG, "mSmallSize is: " + mSmallSize);
|
|
if (DEBUG) Log.d(TAG, "targetHeight is: " + targetHeight);
|
|
if (DEBUG) Log.d(TAG, "scale was finished on view: " + mResizedView);
|
|
}
|
|
|
|
private void clearView() {
|
|
mResizedView = null;
|
|
}
|
|
|
|
/**
|
|
* Use this to abort any pending expansions in progress.
|
|
*/
|
|
public void cancel() {
|
|
finishExpanding(true, 0f /* velocity */);
|
|
clearView();
|
|
|
|
// reset the gesture detector
|
|
mSGD = new ScaleGestureDetector(mContext, mScaleGestureListener);
|
|
}
|
|
|
|
/**
|
|
* Change the expansion mode to only observe movements and don't perform any resizing.
|
|
* This is needed when the expanding is finished and the scroller kicks in,
|
|
* performing an overscroll motion. We only want to shrink it again when we are not
|
|
* overscrolled.
|
|
*
|
|
* @param onlyMovements Should only movements be observed?
|
|
*/
|
|
public void onlyObserveMovements(boolean onlyMovements) {
|
|
mOnlyMovements = onlyMovements;
|
|
}
|
|
}
|
|
|