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Updating the scrollbar to make the fastscroller more visible.

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Bug: 20035978
Change-Id: I56a865262cd07e6af11b4374a7e6354710116dcd
This commit is contained in:
Winson
2015-08-20 12:23:52 -07:00
committed by Winson Chung
parent a67cce2cb3
commit 6779595bec
4 changed files with 70 additions and 37 deletions
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4
proguard.flags
View File

@@ -5,8 +5,8 @@
-keep class com.android.launcher3.BaseRecyclerViewFastScrollBar {
public void setThumbWidth(int);
public int getThumbWidth();
public void setTrackAlpha(int);
public int getTrackAlpha();
public void setTrackWidth(int);
public int getTrackWidth();
}
-keep class com.android.launcher3.BaseRecyclerViewFastScrollPopup {

2
res/values/colors.xml
View File

@@ -39,7 +39,7 @@
<color name="outline_color">#FFFFFFFF</color>
<!-- Containers -->
<color name="container_fastscroll_thumb_inactive_color">#42000000</color>
<color name="container_fastscroll_thumb_inactive_color">#009688</color>
<color name="container_fastscroll_thumb_active_color">#009688</color>
<!-- All Apps -->

6
res/values/dimens.xml
View File

@@ -55,9 +55,9 @@
<!-- Notes: container_bounds_inset - quantum_panel_outer_padding -->
<dimen name="container_bounds_minus_quantum_panel_padding_inset">4dp</dimen>
<dimen name="container_fastscroll_thumb_min_width">4dp</dimen>
<dimen name="container_fastscroll_thumb_max_width">8dp</dimen>
<dimen name="container_fastscroll_thumb_height">64dp</dimen>
<dimen name="container_fastscroll_thumb_min_width">5dp</dimen>
<dimen name="container_fastscroll_thumb_max_width">9dp</dimen>
<dimen name="container_fastscroll_thumb_height">72dp</dimen>
<dimen name="container_fastscroll_thumb_touch_inset">-24dp</dimen>
<dimen name="container_fastscroll_popup_size">72dp</dimen>
<dimen name="container_fastscroll_popup_text_size">48dp</dimen>

95
src/com/android/launcher3/BaseRecyclerViewFastScrollBar.java
View File

@@ -23,6 +23,7 @@ import android.content.res.Resources;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.Point;
import android.graphics.Rect;
import android.view.MotionEvent;
@@ -51,11 +52,14 @@ public class BaseRecyclerViewFastScrollBar {
private int mThumbActiveColor;
@Thunk Point mThumbOffset = new Point(-1, -1);
@Thunk Paint mThumbPaint;
private Paint mTrackPaint;
private int mThumbMinWidth;
private int mThumbMaxWidth;
@Thunk int mThumbWidth;
@Thunk int mThumbHeight;
private int mThumbCurvature;
private Path mThumbPath = new Path();
private Paint mTrackPaint;
private int mTrackWidth;
private float mLastTouchY;
// The inset is the buffer around which a point will still register as a click on the scrollbar
private int mTouchInset;
@@ -75,15 +79,18 @@ public class BaseRecyclerViewFastScrollBar {
mPopup = new BaseRecyclerViewFastScrollPopup(rv, res);
mTrackPaint = new Paint();
mTrackPaint.setColor(rv.getFastScrollerTrackColor(Color.BLACK));
mTrackPaint.setAlpha(0);
mTrackPaint.setAlpha(MAX_TRACK_ALPHA);
mThumbInactiveColor = rv.getFastScrollerThumbInactiveColor(
res.getColor(R.color.container_fastscroll_thumb_inactive_color));
mThumbActiveColor = res.getColor(R.color.container_fastscroll_thumb_active_color);
mThumbPaint = new Paint();
mThumbPaint.setAntiAlias(true);
mThumbPaint.setColor(mThumbInactiveColor);
mThumbPaint.setStyle(Paint.Style.FILL);
mThumbWidth = mThumbMinWidth = res.getDimensionPixelSize(R.dimen.container_fastscroll_thumb_min_width);
mThumbMaxWidth = res.getDimensionPixelSize(R.dimen.container_fastscroll_thumb_max_width);
mThumbHeight = res.getDimensionPixelSize(R.dimen.container_fastscroll_thumb_height);
mThumbCurvature = mThumbMaxWidth - mThumbMinWidth;
mTouchInset = res.getDimensionPixelSize(R.dimen.container_fastscroll_thumb_touch_inset);
}
@@ -99,10 +106,12 @@ public class BaseRecyclerViewFastScrollBar {
if (mThumbOffset.x == x && mThumbOffset.y == y) {
return;
}
mInvalidateRect.set(mThumbOffset.x, 0, mThumbOffset.x + mThumbWidth, mRv.getHeight());
mInvalidateRect.set(mThumbOffset.x - mThumbCurvature, mThumbOffset.y,
mThumbOffset.x + mThumbWidth, mThumbOffset.y + mThumbHeight);
mThumbOffset.set(x, y);
mInvalidateRect.union(new Rect(mThumbOffset.x, 0, mThumbOffset.x + mThumbWidth,
mRv.getHeight()));
updateThumbPath();
mInvalidateRect.union(mThumbOffset.x - mThumbCurvature, mThumbOffset.y,
mThumbOffset.x + mThumbWidth, mThumbOffset.y + mThumbHeight);
mRv.invalidate(mInvalidateRect);
}
@@ -110,12 +119,14 @@ public class BaseRecyclerViewFastScrollBar {
return mThumbOffset;
}
// Setter/getter for the search bar width for animations
// Setter/getter for the thumb bar width for animations
public void setThumbWidth(int width) {
mInvalidateRect.set(mThumbOffset.x, 0, mThumbOffset.x + mThumbWidth, mRv.getHeight());
mInvalidateRect.set(mThumbOffset.x - mThumbCurvature, mThumbOffset.y,
mThumbOffset.x + mThumbWidth, mThumbOffset.y + mThumbHeight);
mThumbWidth = width;
mInvalidateRect.union(new Rect(mThumbOffset.x, 0, mThumbOffset.x + mThumbWidth,
mRv.getHeight()));
updateThumbPath();
mInvalidateRect.union(mThumbOffset.x - mThumbCurvature, mThumbOffset.y,
mThumbOffset.x + mThumbWidth, mThumbOffset.y + mThumbHeight);
mRv.invalidate(mInvalidateRect);
}
@@ -123,15 +134,19 @@ public class BaseRecyclerViewFastScrollBar {
return mThumbWidth;
}
// Setter/getter for the track background alpha for animations
public void setTrackAlpha(int alpha) {
mTrackPaint.setAlpha(alpha);
mInvalidateRect.set(mThumbOffset.x, 0, mThumbOffset.x + mThumbWidth, mRv.getHeight());
// Setter/getter for the track bar width for animations
public void setTrackWidth(int width) {
mInvalidateRect.set(mThumbOffset.x - mThumbCurvature, 0, mThumbOffset.x + mThumbWidth,
mRv.getHeight());
mTrackWidth = width;
updateThumbPath();
mInvalidateRect.union(mThumbOffset.x - mThumbCurvature, 0, mThumbOffset.x + mThumbWidth,
mRv.getHeight());
mRv.invalidate(mInvalidateRect);
}
public int getTrackAlpha() {
return mTrackPaint.getAlpha();
public int getTrackWidth() {
return mTrackWidth;
}
public int getThumbHeight() {
@@ -217,8 +232,7 @@ public class BaseRecyclerViewFastScrollBar {
if (mTrackPaint.getAlpha() > 0) {
canvas.drawRect(mThumbOffset.x, 0, mThumbOffset.x + mThumbWidth, mRv.getHeight(), mTrackPaint);
}
canvas.drawRect(mThumbOffset.x, mThumbOffset.y, mThumbOffset.x + mThumbWidth,
mThumbOffset.y + mThumbHeight, mThumbPaint);
canvas.drawPath(mThumbPath, mThumbPaint);
// Draw the popup
mPopup.draw(canvas);
@@ -231,26 +245,45 @@ public class BaseRecyclerViewFastScrollBar {
if (mScrollbarAnimator != null) {
mScrollbarAnimator.cancel();
}
ObjectAnimator trackAlphaAnim = ObjectAnimator.ofInt(this, "trackAlpha",
isScrolling ? MAX_TRACK_ALPHA : 0);
mScrollbarAnimator = new AnimatorSet();
ObjectAnimator trackWidthAnim = ObjectAnimator.ofInt(this, "trackWidth",
isScrolling ? mThumbMaxWidth : mThumbMinWidth);
ObjectAnimator thumbWidthAnim = ObjectAnimator.ofInt(this, "thumbWidth",
isScrolling ? mThumbMaxWidth : mThumbMinWidth);
ValueAnimator colorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(),
mThumbPaint.getColor(), isScrolling ? mThumbActiveColor : mThumbInactiveColor);
colorAnimation.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animator) {
mThumbPaint.setColor((Integer) animator.getAnimatedValue());
mRv.invalidate(mThumbOffset.x, mThumbOffset.y, mThumbOffset.x + mThumbWidth,
mThumbOffset.y + mThumbHeight);
}
});
mScrollbarAnimator = new AnimatorSet();
mScrollbarAnimator.playTogether(trackAlphaAnim, thumbWidthAnim, colorAnimation);
mScrollbarAnimator.playTogether(trackWidthAnim, thumbWidthAnim);
if (mThumbActiveColor != mThumbInactiveColor) {
ValueAnimator colorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(),
mThumbPaint.getColor(), isScrolling ? mThumbActiveColor : mThumbInactiveColor);
colorAnimation.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animator) {
mThumbPaint.setColor((Integer) animator.getAnimatedValue());
mRv.invalidate(mThumbOffset.x, mThumbOffset.y, mThumbOffset.x + mThumbWidth,
mThumbOffset.y + mThumbHeight);
}
});
mScrollbarAnimator.play(colorAnimation);
}
mScrollbarAnimator.setDuration(SCROLL_BAR_VIS_DURATION);
mScrollbarAnimator.start();
}
/**
* Updates the path for the thumb drawable.
*/
private void updateThumbPath() {
mThumbCurvature = mThumbMaxWidth - mThumbWidth;
mThumbPath.reset();
mThumbPath.moveTo(mThumbOffset.x + mThumbWidth, mThumbOffset.y); // tr
mThumbPath.lineTo(mThumbOffset.x + mThumbWidth, mThumbOffset.y + mThumbHeight); // br
mThumbPath.lineTo(mThumbOffset.x, mThumbOffset.y + mThumbHeight); // bl
mThumbPath.cubicTo(mThumbOffset.x, mThumbOffset.y + mThumbHeight,
mThumbOffset.x - mThumbCurvature, mThumbOffset.y + mThumbHeight / 2,
mThumbOffset.x, mThumbOffset.y); // bl2tl
mThumbPath.close();
}
/**
* Returns whether the specified points are near the scroll bar bounds.
*/