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Merge "Allow swipe down to dismiss for ResolverDrawerLayout" into lmp-mr1-dev

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This commit is contained in:
Adam Powell
2014-10-31 20:28:47 +00:00
committed by Android (Google) Code Review
parent 984cf41a54 5dd072d884
commit b9eabc5c2b
2 changed files with 61 additions and 23 deletions
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4
core/java/com/android/internal/app/ResolverActivity.java
View File

@@ -278,9 +278,9 @@ public class ResolverActivity extends Activity implements AdapterView.OnItemClic
final ResolverDrawerLayout rdl = (ResolverDrawerLayout) findViewById(R.id.contentPanel);
if (rdl != null) {
rdl.setOnClickOutsideListener(new View.OnClickListener() {
rdl.setOnDismissedListener(new ResolverDrawerLayout.OnDismissedListener() {
@Override
public void onClick(View v) {
public void onDismissed() {
finish();
}
});

80
core/java/com/android/internal/widget/ResolverDrawerLayout.java
View File

@@ -63,18 +63,22 @@ public class ResolverDrawerLayout extends ViewGroup {
private float mCollapseOffset;
private int mCollapsibleHeight;
private int mUncollapsibleHeight;
private int mTopOffset;
private boolean mIsDragging;
private boolean mOpenOnClick;
private boolean mOpenOnLayout;
private boolean mDismissOnScrollerFinished;
private final int mTouchSlop;
private final float mMinFlingVelocity;
private final OverScroller mScroller;
private final VelocityTracker mVelocityTracker;
private OnClickListener mClickOutsideListener;
private OnDismissedListener mOnDismissedListener;
private RunOnDismissedListener mRunOnDismissedListener;
private float mInitialTouchX;
private float mInitialTouchY;
private float mLastTouchY;
@@ -143,8 +147,8 @@ public class ResolverDrawerLayout extends ViewGroup {
return isSmallCollapsed() ? mMaxCollapsedHeightSmall : mMaxCollapsedHeight;
}
public void setOnClickOutsideListener(OnClickListener listener) {
mClickOutsideListener = listener;
public void setOnDismissedListener(OnDismissedListener listener) {
mOnDismissedListener = listener;
}
@Override
@@ -194,7 +198,7 @@ public class ResolverDrawerLayout extends ViewGroup {
}
if (mIsDragging) {
mScroller.abortAnimation();
abortAnimation();
}
return mIsDragging || mOpenOnClick;
}
@@ -213,12 +217,9 @@ public class ResolverDrawerLayout extends ViewGroup {
mInitialTouchX = x;
mInitialTouchY = mLastTouchY = y;
mActivePointerId = ev.getPointerId(0);
if (findChildUnder(mInitialTouchX, mInitialTouchY) == null &&
mClickOutsideListener != null) {
mIsDragging = handled = true;
}
handled |= mCollapsibleHeight > 0;
mScroller.abortAnimation();
mIsDragging = findChildUnder(mInitialTouchX, mInitialTouchY) != null;
handled = (!mIsDragging && mOnDismissedListener != null) || mCollapsibleHeight > 0;
abortAnimation();
}
break;
@@ -264,11 +265,12 @@ public class ResolverDrawerLayout extends ViewGroup {
break;
case MotionEvent.ACTION_UP: {
final boolean wasDragging = mIsDragging;
mIsDragging = false;
if (!mIsDragging && findChildUnder(mInitialTouchX, mInitialTouchY) == null &&
if (!wasDragging && findChildUnder(mInitialTouchX, mInitialTouchY) == null &&
findChildUnder(ev.getX(), ev.getY()) == null) {
if (mClickOutsideListener != null) {
mClickOutsideListener.onClick(this);
if (mOnDismissedListener != null) {
dispatchOnDismissed();
resetTouch();
return true;
}
@@ -281,7 +283,13 @@ public class ResolverDrawerLayout extends ViewGroup {
mVelocityTracker.computeCurrentVelocity(1000);
final float yvel = mVelocityTracker.getYVelocity(mActivePointerId);
if (Math.abs(yvel) > mMinFlingVelocity) {
smoothScrollTo(yvel < 0 ? 0 : mCollapsibleHeight, yvel);
if (mOnDismissedListener != null
&& yvel > 0 && mCollapseOffset > mCollapsibleHeight) {
smoothScrollTo(mCollapsibleHeight + mUncollapsibleHeight, yvel);
mDismissOnScrollerFinished = true;
} else {
smoothScrollTo(yvel < 0 ? 0 : mCollapsibleHeight, yvel);
}
} else {
smoothScrollTo(
mCollapseOffset < mCollapsibleHeight / 2 ? 0 : mCollapsibleHeight, 0);
@@ -327,17 +335,27 @@ public class ResolverDrawerLayout extends ViewGroup {
@Override
public void computeScroll() {
super.computeScroll();
if (!mScroller.isFinished()) {
final boolean keepGoing = mScroller.computeScrollOffset();
if (mScroller.computeScrollOffset()) {
final boolean keepGoing = !mScroller.isFinished();
performDrag(mScroller.getCurrY() - mCollapseOffset);
if (keepGoing) {
postInvalidateOnAnimation();
} else if (mDismissOnScrollerFinished && mOnDismissedListener != null) {
mRunOnDismissedListener = new RunOnDismissedListener();
post(mRunOnDismissedListener);
}
}
}
private void abortAnimation() {
mScroller.abortAnimation();
mRunOnDismissedListener = null;
mDismissOnScrollerFinished = false;
}
private float performDrag(float dy) {
final float newPos = Math.max(0, Math.min(mCollapseOffset + dy, mCollapsibleHeight));
final float newPos = Math.max(0, Math.min(mCollapseOffset + dy,
mCollapsibleHeight + mUncollapsibleHeight));
if (newPos != mCollapseOffset) {
dy = newPos - mCollapseOffset;
final int childCount = getChildCount();
@@ -356,11 +374,18 @@ public class ResolverDrawerLayout extends ViewGroup {
return 0;
}
private void smoothScrollTo(int yOffset, float velocity) {
if (getMaxCollapsedHeight() == 0) {
return;
void dispatchOnDismissed() {
if (mOnDismissedListener != null) {
mOnDismissedListener.onDismissed();
}
mScroller.abortAnimation();
if (mRunOnDismissedListener != null) {
removeCallbacks(mRunOnDismissedListener);
mRunOnDismissedListener = null;
}
}
private void smoothScrollTo(int yOffset, float velocity) {
abortAnimation();
final int sy = (int) mCollapseOffset;
int dy = yOffset - sy;
if (dy == 0) {
@@ -490,6 +515,7 @@ public class ResolverDrawerLayout extends ViewGroup {
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
getViewTreeObserver().removeOnTouchModeChangeListener(mTouchModeChangeListener);
abortAnimation();
}
@Override
@@ -585,6 +611,7 @@ public class ResolverDrawerLayout extends ViewGroup {
mCollapsibleHeight = Math.max(0,
heightUsed - alwaysShowHeight - getMaxCollapsedHeight());
mUncollapsibleHeight = heightUsed - mCollapsibleHeight;
if (isLaidOut()) {
mCollapseOffset = Math.min(mCollapseOffset, mCollapsibleHeight);
@@ -734,4 +761,15 @@ public class ResolverDrawerLayout extends ViewGroup {
}
};
}
public interface OnDismissedListener {
public void onDismissed();
}
private class RunOnDismissedListener implements Runnable {
@Override
public void run() {
dispatchOnDismissed();
}
}
}