open notifications near the top with a single finger. (b4e2c48b) · Commits · e / os / android_frameworks_base

packages/SystemUI/res/layout/status_bar_expanded.xml

+1 −1

Original line number	Diff line number	Diff line
		@@ -56,7 +56,7 @@
		android:layout_width="match_parent"
		android:layout_height="match_parent"
		android:fadingEdge="none"
		android:overScrollMode="ifContentScrolls"
		android:overScrollMode="never"
		android:layout_marginTop="@dimen/notification_panel_header_height"
		>
		<com.android.systemui.statusbar.policy.NotificationRowLayout

packages/SystemUI/res/layout/system_bar_notification_panel.xml

+1 −0

Original line number	Diff line number	Diff line
		@@ -57,6 +57,7 @@
		android:id="@+id/notification_scroller"
		android:layout_height="wrap_content"
		android:layout_width="match_parent"
		android:overScrollMode="never"
		android:layout_weight="1"
		>
		<com.android.systemui.statusbar.policy.NotificationRowLayout

packages/SystemUI/res/values/config.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -65,5 +65,8 @@

		<!-- Vibration duration for MultiWaveView used in SearchPanelView -->
		<integer translatable="false" name="config_search_panel_view_vibration_duration">20</integer>

		<!-- The length of the vibration when the notificaiotn pops open. -->
		<integer name="one_finger_pop_duration_ms">10</integer>
		</resources>

packages/SystemUI/res/values/dimens.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -150,4 +150,7 @@

		<!-- Height of the carrier/wifi name label -->
		<dimen name="carrier_label_height">24dp</dimen>

		<!-- The distance you can pull a notificaiton before it pops open -->
		<dimen name="one_finger_pop_limit">40dp</dimen>
		</resources>

packages/SystemUI/src/com/android/systemui/ExpandHelper.java

+178 −34

Original line number	Diff line number	Diff line
		@@ -22,11 +22,13 @@ import android.animation.AnimatorListenerAdapter;
		import android.animation.AnimatorSet;
		import android.animation.ObjectAnimator;
		import android.content.Context;
		import android.os.Vibrator;
		import android.util.Slog;
		import android.view.Gravity;
		import android.view.MotionEvent;
		import android.view.ScaleGestureDetector;
		import android.view.View;
		import android.view.ViewConfiguration;
		import android.view.ViewGroup;
		import android.view.View.OnClickListener;

		@@ -63,6 +65,9 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		private Context mContext;

		private boolean mStretching;
		private boolean mPullingWithOneFinger;
		private boolean mWatchingForPull;
		private boolean mHasPopped;
		private View mEventSource;
		private View mCurrView;
		private View mCurrViewTopGlow;
		@@ -70,7 +75,12 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		private float mOldHeight;
		private float mNaturalHeight;
		private float mInitialTouchFocusY;
		private float mInitialTouchY;
		private float mInitialTouchSpan;
		private int mTouchSlop;
		private int mLastMotionY;
		private float mPopLimit;
		private int mPopDuration;
		private Callback mCallback;
		private ScaleGestureDetector mDetector;
		private ViewScaler mScaler;
		@@ -78,6 +88,7 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		private AnimatorSet mGlowAnimationSet;
		private ObjectAnimator mGlowTopAnimation;
		private ObjectAnimator mGlowBottomAnimation;
		private Vibrator mVibrator;

		private int mSmallSize;
		private int mLargeSize;
		@@ -85,6 +96,8 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {

		private int mGravity;

		private View mScrollView;

		private class ViewScaler {
		View mView;

		@@ -142,6 +155,8 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		mGravity = Gravity.TOP;
		mScaleAnimation = ObjectAnimator.ofFloat(mScaler, "height", 0f);
		mScaleAnimation.setDuration(EXPAND_DURATION);
		mPopLimit = mContext.getResources().getDimension(R.dimen.one_finger_pop_limit);
		mPopDuration = mContext.getResources().getInteger(R.integer.one_finger_pop_duration_ms);

		AnimatorListenerAdapter glowVisibilityController = new AnimatorListenerAdapter() {
		@Override
		@@ -169,6 +184,9 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		mGlowAnimationSet.play(mGlowTopAnimation).with(mGlowBottomAnimation);
		mGlowAnimationSet.setDuration(GLOW_DURATION);

		final ViewConfiguration configuration = ViewConfiguration.get(mContext);
		mTouchSlop = configuration.getScaledTouchSlop();

		mDetector =
		new ScaleGestureDetector(context,
		new ScaleGestureDetector.SimpleOnScaleGestureListener() {
		@@ -178,23 +196,12 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		float x = detector.getFocusX();
		float y = detector.getFocusY();

		View v = null;
		if (mEventSource != null) {
		int[] location = new int[2];
		mEventSource.getLocationOnScreen(location);
		x += (float) location[0];
		y += (float) location[1];
		v = mCallback.getChildAtRawPosition(x, y);
		} else {
		v = mCallback.getChildAtPosition(x, y);
		}

		// your fingers have to be somewhat close to the bounds of the view in question
		mInitialTouchFocusY = detector.getFocusY();
		mInitialTouchSpan = Math.abs(detector.getCurrentSpan());
		if (DEBUG) Slog.d(TAG, "got mInitialTouchSpan: (" + mInitialTouchSpan + ")");

		mStretching = initScale(v);
		mStretching = initScale(findView(x, y));
		return mStretching;
		}

		@@ -210,20 +217,11 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		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;
		if (DEBUG) Slog.d(TAG, "current span handle is: " + hand);
		hand = hand + mOldHeight;
		float target = hand;
		if (DEBUG) Slog.d(TAG, "target is: " + target);
		hand = hand < mSmallSize ? mSmallSize : (hand > mLargeSize ? mLargeSize : hand);
		hand = hand > mNaturalHeight ? mNaturalHeight : hand;
		if (DEBUG) Slog.d(TAG, "scale continues: hand =" + hand);
		mScaler.setHeight(hand);
		float target = hand + mOldHeight;
		float newHeight = clamp(target);
		mScaler.setHeight(newHeight);

		// glow if overscale
		float stretch = (float) Math.abs((target - hand) / mMaximumStretch);
		float strength = 1f / (1f + (float) Math.pow(Math.E, -1 * ((8f * stretch) - 5f)));
		if (DEBUG) Slog.d(TAG, "stretch: " + stretch + " strength: " + strength);
		setGlow(GLOW_BASE + strength * (1f - GLOW_BASE));
		setGlow(calculateGlow(target, newHeight));
		return true;
		}

		@@ -233,10 +231,56 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		// I guess we're alone now
		if (DEBUG) Slog.d(TAG, "scale end");
		finishScale(false);
		mStretching = false;
		}
		});
		}

		private float clamp(float target) {
		float out = target;
		out = out < mSmallSize ? mSmallSize : (out > mLargeSize ? mLargeSize : out);
		out = out > mNaturalHeight ? mNaturalHeight : out;
		return out;
		}

		private View findView(float x, float y) {
		View v = null;
		if (mEventSource != null) {
		int[] location = new int[2];
		mEventSource.getLocationOnScreen(location);
		x += (float) location[0];
		y += (float) 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) Slog.d(TAG, "isinside (" + x + ", " + y + ")");

		if (v == null) {
		if (DEBUG) Slog.d(TAG, "isinside null subject");
		return false;
		}
		if (mEventSource != null) {
		int[] location = new int[2];
		mEventSource.getLocationOnScreen(location);
		x += (float) location[0];
		y += (float) location[1];
		if (DEBUG) Slog.d(TAG, " to global (" + x + ", " + y + ")");
		}
		int[] location = new int[2];
		v.getLocationOnScreen(location);
		x -= (float) location[0];
		y -= (float) location[1];
		if (DEBUG) Slog.d(TAG, " to local (" + x + ", " + y + ")");
		if (DEBUG) Slog.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;
		}
		@@ -245,6 +289,18 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		mGravity = gravity;
		}

		public void setScrollView(View scrollView) {
		mScrollView = scrollView;
		}

		private float calculateGlow(float target, float actual) {
		// glow if overscale
		float stretch = (float) Math.abs((target - actual) / mMaximumStretch);
		float strength = 1f / (1f + (float) Math.pow(Math.E, -1 * ((8f * stretch) - 5f)));
		if (DEBUG) Slog.d(TAG, "stretch: " + stretch + " strength: " + strength);
		return (GLOW_BASE + strength * (1f - GLOW_BASE));
		}

		public void setGlow(float glow) {
		if (!mGlowAnimationSet.isRunning() \|\| glow == 0f) {
		if (mGlowAnimationSet.isRunning()) {
		@@ -278,23 +334,100 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {

		public boolean onInterceptTouchEvent(MotionEvent ev) {
		if (DEBUG) Slog.d(TAG, "interceptTouch: act=" + (ev.getAction()) +
		" stretching=" + mStretching);
		" stretching=" + mStretching +
		" onefinger=" + mPullingWithOneFinger);
		// check for a two-finger gesture
		mDetector.onTouchEvent(ev);
		return mStretching;
		if (mStretching) {
		return true;
		} else {
		final int action = ev.getAction();
		if ((action == MotionEvent.ACTION_MOVE) && mPullingWithOneFinger) {
		return true;
		}
		if (mScrollView != null && mScrollView.getScrollY() > 0) {
		return false;
		}
		switch (action & MotionEvent.ACTION_MASK) {
		case MotionEvent.ACTION_MOVE: {
		if (mWatchingForPull) {
		final int x = (int) ev.getX();
		final int y = (int) ev.getY();
		final int yDiff = y - mLastMotionY;
		if (yDiff > mTouchSlop) {
		mLastMotionY = y;
		mPullingWithOneFinger = initScale(findView(x, y));
		if (mPullingWithOneFinger) {
		mInitialTouchFocusY = mLastMotionY;
		mHasPopped = false;
		}
		}
		if (DEBUG) Slog.d(TAG, "examining move: " + yDiff);
		} else {
		if (DEBUG) Slog.d(TAG, "uninteresting move");
		}
		break;
		}

		case MotionEvent.ACTION_DOWN:
		mWatchingForPull = isInside(mScrollView, ev.getX(), ev.getY());
		mLastMotionY = (int) ev.getY();
		if (DEBUG) Slog.d(TAG, "action down: " + mWatchingForPull);
		break;

		case MotionEvent.ACTION_CANCEL:
		case MotionEvent.ACTION_UP:
		if (mPullingWithOneFinger) {
		finishScale(false);
		}
		mPullingWithOneFinger = false;
		mWatchingForPull = false;
		if (DEBUG) Slog.d(TAG, "action up: " + mWatchingForPull);
		break;
		}
		return mPullingWithOneFinger;
		}
		}

		public boolean onTouchEvent(MotionEvent ev) {
		final int action = ev.getAction();
		if (DEBUG) Slog.d(TAG, "touch: act=" + (action) + " stretching=" + mStretching);
		if (DEBUG) Slog.d(TAG, "touch: act=" + (action) +
		" stretching=" + mStretching +
		" onefinger=" + mPullingWithOneFinger);
		if (mStretching) {
		if (DEBUG) Slog.d(TAG, "detector ontouch");
		mDetector.onTouchEvent(ev);
		}
		switch (action) {
		case MotionEvent.ACTION_MOVE: {
		if (mPullingWithOneFinger) {
		float hand = ev.getY() - mInitialTouchFocusY;
		if (mHasPopped \|\| hand > mPopLimit) {
		if (!mHasPopped) {
		vibrate(mPopDuration);
		mHasPopped = true;
		}
		hand = hand + mOldHeight;
		float target = hand;
		float newHeight = clamp(target);
		mScaler.setHeight(newHeight);
		// glow if overscale
		setGlow(calculateGlow(target, newHeight));
		} else {
		setGlow(calculateGlow(4f * hand, 0f));
		}
		return true;
		}
		break;
		}
		case MotionEvent.ACTION_UP:
		case MotionEvent.ACTION_CANCEL:
		if (DEBUG) Slog.d(TAG, "cancel");
		mStretching = false;
		if (mPullingWithOneFinger) {
		finishScale(false);
		mPullingWithOneFinger = false;
		}
		clearView();
		break;
		}
		@@ -303,7 +436,6 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		private boolean initScale(View v) {
		if (v != null) {
		if (DEBUG) Slog.d(TAG, "scale begins on view: " + v);
		mStretching = true;
		setView(v);
		setGlow(GLOW_BASE);
		mScaler.setView(v);
		@@ -318,8 +450,10 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		if (DEBUG) Slog.d(TAG, "got mOldHeight: " + mOldHeight +
		" mNaturalHeight: " + mNaturalHeight);
		v.getParent().requestDisallowInterceptTouchEvent(true);
		return true;
		} else {
		return false;
		}
		return mStretching;
		}

		private void finishScale(boolean force) {
		@@ -337,7 +471,6 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		mScaleAnimation.setFloatValues(h);
		mScaleAnimation.setupStartValues();
		mScaleAnimation.start();
		mStretching = false;
		setGlow(0f);
		mCallback.setUserExpandedChild(mCurrView, h == mNaturalHeight);
		if (DEBUG) Slog.d(TAG, "scale was finished on view: " + mCurrView);
		@@ -369,6 +502,17 @@ public class ExpandHelper implements Gefingerpoken, OnClickListener {
		public void onClick(View v) {
		initScale(v);
		finishScale(true);
		}

		/**
		* Triggers haptic feedback.
		*/
		private synchronized void vibrate(long duration) {
		if (mVibrator == null) {
		mVibrator = (android.os.Vibrator)
		mContext.getSystemService(Context.VIBRATOR_SERVICE);
		}
		mVibrator.vibrate(duration);
		}
		}