Swipe to veto in notifications. (ad6352be) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/statusbar/policy/NotificationRowLayout.java

+131 −15

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ import android.animation.Animator;
		import android.animation.AnimatorListenerAdapter;
		import android.animation.AnimatorSet;
		import android.animation.ObjectAnimator;
		import android.animation.TimeAnimator;
		import android.animation.ValueAnimator;
		import android.content.Context;
		import android.content.res.Resources;
		@@ -30,6 +31,8 @@ import android.graphics.drawable.Drawable;
		import android.util.AttributeSet;
		import android.util.Slog;
		import android.view.LayoutInflater;
		import android.view.MotionEvent;
		import android.view.VelocityTracker;
		import android.view.View;
		import android.view.ViewGroup;
		import android.view.animation.AccelerateInterpolator;
		@@ -45,10 +48,15 @@ import com.android.systemui.R;
		public class NotificationRowLayout extends ViewGroup {
		private static final String TAG = "NotificationRowLayout";
		private static final boolean DEBUG = false;
		private static final boolean SLOW_ANIMATIONS = false; // DEBUG;

		private static final boolean ANIMATE_LAYOUT = true;

		private static final int ANIM_LEN = DEBUG ? 5000 : 250;
		private static final int APPEAR_ANIM_LEN = SLOW_ANIMATIONS ? 5000 : 250;
		private static final int DISAPPEAR_ANIM_LEN = APPEAR_ANIM_LEN;
		private static final int SNAP_ANIM_LEN = SLOW_ANIMATIONS ? 1000 : 250;

		private static final float SWIPE_ESCAPE_VELOCITY = 1500f;

		Rect mTmpRect = new Rect();
		int mNumRows = 0;
		@@ -58,6 +66,11 @@ public class NotificationRowLayout extends ViewGroup {
		HashSet<View> mAppearingViews = new HashSet<View>();
		HashSet<View> mDisappearingViews = new HashSet<View>();

		VelocityTracker mVT;
		float mInitialTouchX, mInitialTouchY;
		View mSlidingChild = null;
		float mLiftoffVelocity;

		public NotificationRowLayout(Context context, AttributeSet attrs) {
		this(context, attrs, 0);
		}
		@@ -65,6 +78,8 @@ public class NotificationRowLayout extends ViewGroup {
		public NotificationRowLayout(Context context, AttributeSet attrs, int defStyle) {
		super(context, attrs, defStyle);

		mVT = VelocityTracker.obtain();

		TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.NotificationRowLayout,
		defStyle, 0);
		mRowHeight = a.getDimensionPixelSize(R.styleable.NotificationRowLayout_rowHeight, 0);
		@@ -89,6 +104,92 @@ public class NotificationRowLayout extends ViewGroup {

		}

		// Swipey code
		@Override
		public boolean onInterceptTouchEvent(MotionEvent ev) {
		final int action = ev.getAction();
		// if (DEBUG) Slog.d(TAG, "intercepting touch event: " + ev);
		switch (action) {
		case MotionEvent.ACTION_DOWN:
		mVT.clear();
		mVT.addMovement(ev);
		mInitialTouchX = ev.getX();
		mInitialTouchY = ev.getY();
		mSlidingChild = null;
		break;
		case MotionEvent.ACTION_MOVE:
		mVT.addMovement(ev);
		if (mSlidingChild == null) {
		if (Math.abs(ev.getX() - mInitialTouchX) > 4) { // slide slop

		// find the view under the pointer, accounting for GONE views
		final int count = getChildCount();
		int y = 0;
		int childIdx = 0;
		for (; childIdx < count; childIdx++) {
		mSlidingChild = getChildAt(childIdx);
		if (mSlidingChild.getVisibility() == GONE) {
		continue;
		}
		y += mRowHeight;
		if (mInitialTouchY < y) break;
		}

		mInitialTouchX -= mSlidingChild.getTranslationX();
		mSlidingChild.animate().cancel();

		if (DEBUG) {
		Slog.d(TAG, String.format(
		"now sliding child %d: %s (touchY=%.1f, rowHeight=%d, count=%d)",
		childIdx, mSlidingChild, mInitialTouchY, mRowHeight, count));
		}
		}
		}
		break;
		}
		return mSlidingChild != null;
		}
		@Override
		public boolean onTouchEvent(MotionEvent ev) {
		final int action = ev.getAction();
		// if (DEBUG) Slog.d(TAG, "touch event: " + ev + " sliding: " + mSlidingChild);
		if (mSlidingChild != null) {
		switch (action) {
		case MotionEvent.ACTION_OUTSIDE:
		case MotionEvent.ACTION_MOVE:
		mVT.addMovement(ev);

		mSlidingChild.setTranslationX(ev.getX() - mInitialTouchX);
		break;
		case MotionEvent.ACTION_UP:
		case MotionEvent.ACTION_CANCEL:
		mVT.addMovement(ev);
		mVT.computeCurrentVelocity(1000 /* px/sec */);
		if (DEBUG) Slog.d(TAG, "exit velocity: " + mVT.getXVelocity());
		boolean restore = true;
		mLiftoffVelocity = mVT.getXVelocity();
		if (Math.abs(mLiftoffVelocity) > SWIPE_ESCAPE_VELOCITY) {
		// flingadingy

		View veto = mSlidingChild.findViewById(R.id.veto);
		if (veto != null && veto.getVisibility() == View.VISIBLE) {
		veto.performClick();
		restore = false;
		}
		}
		if (restore) {
		// snappity
		mSlidingChild.animate().translationX(0)
		.setDuration(SNAP_ANIM_LEN)
		.start();
		}
		break;
		}
		return true;
		}
		return false;
		}

		//**
		@Override
		public void addView(View child, int index, LayoutParams params) {
		@@ -105,7 +206,7 @@ public class NotificationRowLayout extends ViewGroup {
		ObjectAnimator.ofFloat(child, "alpha", 0f, 1f)
		// ,ObjectAnimator.ofFloat(child, "scaleY", 0f, 1f)
		);
		a.setDuration(ANIM_LEN);
		a.setDuration(APPEAR_ANIM_LEN);
		a.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationEnd(Animator animation) {
		@@ -127,21 +228,36 @@ public class NotificationRowLayout extends ViewGroup {
		mDisappearingViews.add(child);

		child.setPivotY(0);
		AnimatorSet a = new AnimatorSet();
		a.playTogether(
		ObjectAnimator.ofFloat(child, "alpha", 0f)
		// ,ObjectAnimator.ofFloat(child, "scaleY", 0f)
		,ObjectAnimator.ofFloat(child, "translationX", 300f)
		);
		a.setDuration(ANIM_LEN);
		a.addListener(new AnimatorListenerAdapter() {

		final float velocity = (mSlidingChild == child)
		? mLiftoffVelocity : SWIPE_ESCAPE_VELOCITY;
		final TimeAnimator zoom = new TimeAnimator();
		zoom.setTimeListener(new TimeAnimator.TimeListener() {
		@Override
		public void onTimeUpdate(TimeAnimator animation, long totalTime, long deltaTime) {
		childF.setTranslationX(childF.getTranslationX() + deltaTime / 1000f * velocity);
		}
		});

		final ObjectAnimator alphaFade = ObjectAnimator.ofFloat(child, "alpha", 0f);
		alphaFade.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationEnd(Animator animation) {
		zoom.cancel(); // it won't end on its own
		if (DEBUG) Slog.d(TAG, "actually removing child: " + childF);
		NotificationRowLayout.super.removeView(childF);
		childF.setAlpha(1f);
		mDisappearingViews.remove(childF);
		}
		});

		AnimatorSet a = new AnimatorSet();
		a.playTogether(alphaFade, zoom);

		// ,ObjectAnimator.ofFloat(child, "scaleY", 0f)
		// ,ObjectAnimator.ofFloat(child, "translationX", child.getTranslationX() + 300f)

		a.setDuration(DISAPPEAR_ANIM_LEN);
		a.start();
		requestLayout(); // start the container animation
		} else {
		@@ -160,8 +276,8 @@ public class NotificationRowLayout extends ViewGroup {
		public void onDraw(android.graphics.Canvas c) {
		super.onDraw(c);
		if (DEBUG) {
		Slog.d(TAG, "onDraw: canvas height: " + c.getHeight() + "px; measured height: "
		+ getMeasuredHeight() + "px");
		//Slog.d(TAG, "onDraw: canvas height: " + c.getHeight() + "px; measured height: "
		// + getMeasuredHeight() + "px");
		c.save();
		c.clipRect(6, 6, c.getWidth() - 6, getMeasuredHeight() - 6,
		android.graphics.Region.Op.DIFFERENCE);
		@@ -199,7 +315,7 @@ public class NotificationRowLayout extends ViewGroup {

		if (ANIMATE_LAYOUT && isShown()) {
		ObjectAnimator.ofInt(this, "forcedHeight", computedHeight)
		.setDuration(ANIM_LEN)
		.setDuration(APPEAR_ANIM_LEN)
		.start();
		} else {
		setForcedHeight(computedHeight);
		@@ -230,7 +346,7 @@ public class NotificationRowLayout extends ViewGroup {
		final int width = right - left;
		final int height = bottom - top;

		if (DEBUG) Slog.d(TAG, "onLayout: height=" + height);
		//if (DEBUG) Slog.d(TAG, "onLayout: height=" + height);

		final int count = getChildCount();
		int y = 0;
		@@ -252,7 +368,7 @@ public class NotificationRowLayout extends ViewGroup {
		}

		public void setForcedHeight(int h) {
		if (DEBUG) Slog.d(TAG, "forcedHeight: " + h);
		//if (DEBUG) Slog.d(TAG, "forcedHeight: " + h);
		if (h != mHeight) {
		mHeight = h;
		requestLayout();