Animating dragview color change when dragging over ButtonDropTarget (fe0d1f24) · Commits · e / os / BlissLauncher3

proguard.flags

+5 −1

Original line number	Diff line number	Diff line
		@@ -66,3 +66,7 @@
		public void setFastScrollerAlpha(float);
		public float getFastScrollerAlpha();
		}

		-keep class com.android.launcher3.ButtonDropTarget {
		public int getTextColor();
		}

res/values/config.xml

+0 −3

Original line number	Diff line number	Diff line
		@@ -55,9 +55,6 @@
		<integer name="config_appsCustomizeDragSlopeThreshold">150</integer>

		<!-- Workspace -->
		<!-- The transition duration for the background of the drop targets -->
		<integer name="config_dropTargetBgTransitionDuration">0</integer>

		<!-- The duration (in ms) of the fade animation on the object outlines, used when
		we are dragging objects around on the home screen. -->
		<integer name="config_dragOutlineFadeTime">900</integer>

src/com/android/launcher3/ButtonDropTarget.java

+38 −11

Original line number	Diff line number	Diff line
		@@ -16,14 +16,16 @@

		package com.android.launcher3;

		import android.animation.ObjectAnimator;
		import android.annotation.TargetApi;
		import android.content.Context;
		import android.content.res.ColorStateList;
		import android.content.res.Configuration;
		import android.content.res.Resources;
		import android.graphics.PointF;
		import android.graphics.Rect;
		import android.graphics.drawable.Drawable;
		import android.graphics.drawable.TransitionDrawable;
		import android.os.Build;
		import android.util.AttributeSet;
		import android.view.View;
		import android.view.View.OnClickListener;
		@@ -42,8 +44,6 @@ public abstract class ButtonDropTarget extends TextView

		private static int DRAG_VIEW_DROP_DURATION = 285;

		protected final int mTransitionDuration;

		protected Launcher mLauncher;
		private int mBottomDragPadding;
		protected TextView mText;
		@@ -58,16 +58,15 @@ public abstract class ButtonDropTarget extends TextView
		protected ColorStateList mOriginalTextColor;
		protected TransitionDrawable mDrawable;

		private ObjectAnimator mCurrentColorAnim;

		public ButtonDropTarget(Context context, AttributeSet attrs) {
		this(context, attrs, 0);
		}

		public ButtonDropTarget(Context context, AttributeSet attrs, int defStyle) {
		super(context, attrs, defStyle);

		Resources r = getResources();
		mTransitionDuration = r.getInteger(R.integer.config_dropTargetBgTransitionDuration);
		mBottomDragPadding = r.getDimensionPixelSize(R.dimen.drop_target_drag_padding);
		mBottomDragPadding = getResources().getDimensionPixelSize(R.dimen.drop_target_drag_padding);
		}

		@Override
		@@ -123,9 +122,14 @@ public abstract class ButtonDropTarget extends TextView
		@Override
		public final void onDragEnter(DragObject d) {
		d.dragView.setColor(mHoverColor);
		mDrawable.startTransition(mTransitionDuration);
		if (Utilities.isLmpOrAbove()) {
		mDrawable.startTransition(DragView.COLOR_CHANGE_DURATION);
		animateTextColor(mHoverColor);
		} else {
		mDrawable.startTransition(0);
		setTextColor(mHoverColor);
		}
		}

		@Override
		public void onDragOver(DragObject d) {
		@@ -133,9 +137,24 @@ public abstract class ButtonDropTarget extends TextView
		}

		protected void resetHoverColor() {
		if (Utilities.isLmpOrAbove()) {
		mDrawable.reverseTransition(DragView.COLOR_CHANGE_DURATION);
		animateTextColor(mOriginalTextColor.getDefaultColor());
		} else {
		mDrawable.resetTransition();
		setTextColor(mOriginalTextColor);
		}
		}

		@TargetApi(Build.VERSION_CODES.LOLLIPOP)
		private void animateTextColor(int targetColor) {
		if (mCurrentColorAnim != null) {
		mCurrentColorAnim.cancel();
		}
		mCurrentColorAnim = ObjectAnimator.ofArgb(this, "textColor", targetColor);
		mCurrentColorAnim.setDuration(DragView.COLOR_CHANGE_DURATION);
		mCurrentColorAnim.start();
		}

		@Override
		public final void onDragExit(DragObject d) {
		@@ -152,6 +171,10 @@ public abstract class ButtonDropTarget extends TextView
		public final void onDragStart(DragSource source, Object info, int dragAction) {
		mActive = supportsDrop(source, info);
		mDrawable.resetTransition();
		if (mCurrentColorAnim != null) {
		mCurrentColorAnim.cancel();
		mCurrentColorAnim = null;
		}
		setTextColor(mOriginalTextColor);
		((ViewGroup) getParent()).setVisibility(mActive ? View.VISIBLE : View.GONE);
		}
		@@ -271,4 +294,8 @@ public abstract class ButtonDropTarget extends TextView
		LauncherAppState.getInstance().getAccessibilityDelegate()
		.handleAccessibleDrop(this, null, getAccessibilityDropConfirmation());
		}

		public int getTextColor() {
		return getTextColors().getDefaultColor();
		}
		}

src/com/android/launcher3/DragView.java

+55 −6

Original line number	Diff line number	Diff line
		@@ -16,22 +16,30 @@

		package com.android.launcher3;

		import android.animation.FloatArrayEvaluator;
		import android.animation.ValueAnimator;
		import android.animation.ValueAnimator.AnimatorUpdateListener;
		import android.annotation.TargetApi;
		import android.content.res.Resources;
		import android.graphics.Bitmap;
		import android.graphics.Canvas;
		import android.graphics.Color;
		import android.graphics.ColorMatrix;
		import android.graphics.ColorMatrixColorFilter;
		import android.graphics.Paint;
		import android.graphics.Point;
		import android.graphics.PorterDuff;
		import android.graphics.PorterDuffColorFilter;
		import android.graphics.Rect;
		import android.os.Build;
		import android.view.View;
		import android.view.animation.DecelerateInterpolator;

		import com.android.launcher3.util.Thunk;

		import java.util.Arrays;

		public class DragView extends View {
		public static int COLOR_CHANGE_DURATION = 200;

		@Thunk static float sDragAlpha = 1f;

		private Bitmap mBitmap;
		@@ -54,6 +62,9 @@ public class DragView extends View {
		// size. This is ignored for non-icons.
		private float mIntrinsicIconScale = 1f;

		private float[] mCurrentFilter;
		private ValueAnimator mFilterAnimator;

		/**
		* Construct the drag view.
		* <p>
		@@ -229,12 +240,51 @@ public class DragView extends View {
		mPaint = new Paint(Paint.FILTER_BITMAP_FLAG);
		}
		if (color != 0) {
		mPaint.setColorFilter(new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_ATOP));
		ColorMatrix m1 = new ColorMatrix();
		m1.setSaturation(0);

		ColorMatrix m2 = new ColorMatrix();
		m2.setScale(Color.red(color) / 255f, Color.green(color) / 255f,
		Color.blue(color) / 255f, Color.alpha(color) / 255f);
		m1.postConcat(m2);

		if (Utilities.isLmpOrAbove()) {
		animateFilterTo(m1.getArray());
		} else {
		mPaint.setColorFilter(new ColorMatrixColorFilter(m1));
		invalidate();
		}
		} else {
		if (!Utilities.isLmpOrAbove() \|\| mCurrentFilter == null) {
		mPaint.setColorFilter(null);
		invalidate();
		} else {
		animateFilterTo(new ColorMatrix().getArray());
		}
		}
		}

		@TargetApi(Build.VERSION_CODES.LOLLIPOP)
		private void animateFilterTo(float[] targetFilter) {
		float[] oldFilter = mCurrentFilter == null ? new ColorMatrix().getArray() : mCurrentFilter;
		mCurrentFilter = Arrays.copyOf(oldFilter, oldFilter.length);

		if (mFilterAnimator != null) {
		mFilterAnimator.cancel();
		}
		mFilterAnimator = ValueAnimator.ofObject(new FloatArrayEvaluator(mCurrentFilter),
		oldFilter, targetFilter);
		mFilterAnimator.setDuration(COLOR_CHANGE_DURATION);
		mFilterAnimator.addUpdateListener(new AnimatorUpdateListener() {

		@Override
		public void onAnimationUpdate(ValueAnimator animation) {
		mPaint.setColorFilter(new ColorMatrixColorFilter(mCurrentFilter));
		invalidate();
		}
		});
		mFilterAnimator.start();
		}

		public boolean hasDrawn() {
		return mHasDrawn;
		@@ -301,4 +351,3 @@ public class DragView extends View {
		}
		}
		}