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author | Sunny Goyal <sunnygoyal@google.com> | 2016-06-15 10:11:30 -0700 |
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committer | Sunny Goyal <sunnygoyal@google.com> | 2016-06-15 10:11:56 -0700 |
commit | 8cf47a5121205486e20694bf48eafc171175027a (patch) | |
tree | eda8a9ca67430b2b63a21492d1faf70a1eb65423 /src/com/android/launcher3/Utilities.java | |
parent | b25b2c41c2fa277e16d708ad827e283efcb86452 (diff) | |
download | packages_apps_Trebuchet-8cf47a5121205486e20694bf48eafc171175027a.tar.gz packages_apps_Trebuchet-8cf47a5121205486e20694bf48eafc171175027a.tar.bz2 packages_apps_Trebuchet-8cf47a5121205486e20694bf48eafc171175027a.zip |
Removing unnecessary object creation and double loop during
getDescendantCoordRelativeToAncestor
Change-Id: I034db2282a8aaf129336a425338c6a80d6a3a073
Diffstat (limited to 'src/com/android/launcher3/Utilities.java')
-rw-r--r-- | src/com/android/launcher3/Utilities.java | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java index 35113758a..6bfce192c 100644 --- a/src/com/android/launcher3/Utilities.java +++ b/src/com/android/launcher3/Utilities.java @@ -341,35 +341,27 @@ public final class Utilities { */ public static float getDescendantCoordRelativeToAncestor( View descendant, View ancestor, int[] coord, boolean includeRootScroll) { - ArrayList<View> ancestorChain = new ArrayList<View>(); - float[] pt = {coord[0], coord[1]}; - + float scale = 1.0f; View v = descendant; while(v != ancestor && v != null) { - ancestorChain.add(v); - v = (View) v.getParent(); - } - - float scale = 1.0f; - int count = ancestorChain.size(); - for (int i = 0; i < count; i++) { - View v0 = ancestorChain.get(i); // For TextViews, scroll has a meaning which relates to the text position // which is very strange... ignore the scroll. - if (v0 != descendant || includeRootScroll) { - pt[0] -= v0.getScrollX(); - pt[1] -= v0.getScrollY(); + if (v != descendant || includeRootScroll) { + pt[0] -= v.getScrollX(); + pt[1] -= v.getScrollY(); } - v0.getMatrix().mapPoints(pt); - pt[0] += v0.getLeft(); - pt[1] += v0.getTop(); - scale *= v0.getScaleX(); + v.getMatrix().mapPoints(pt); + pt[0] += v.getLeft(); + pt[1] += v.getTop(); + scale *= v.getScaleX(); + + v = (View) v.getParent(); } - coord[0] = (int) Math.round(pt[0]); - coord[1] = (int) Math.round(pt[1]); + coord[0] = Math.round(pt[0]); + coord[1] = Math.round(pt[1]); return scale; } |