summaryrefslogtreecommitdiffstats
path: root/core
diff options
context:
space:
mode:
Diffstat (limited to 'core')
-rw-r--r--core/java/android/view/View.java62
-rw-r--r--core/java/android/widget/ListView.java60
2 files changed, 101 insertions, 21 deletions
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 1564fd0..1f72eea 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -1443,6 +1443,27 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
static final int DIRTY_MASK = 0x00600000;
/**
+ * Indicates whether the background is opaque.
+ *
+ * @hide
+ */
+ static final int OPAQUE_BACKGROUND = 0x00800000;
+
+ /**
+ * Indicates whether the scrollbars are opaque.
+ *
+ * @hide
+ */
+ static final int OPAQUE_SCROLLBARS = 0x01000000;
+
+ /**
+ * Indicates whether the view is opaque.
+ *
+ * @hide
+ */
+ static final int OPAQUE_MASK = 0x01800000;
+
+ /**
* The parent this view is attached to.
* {@hide}
*
@@ -1721,7 +1742,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
public View(Context context) {
mContext = context;
mResources = context != null ? context.getResources() : null;
- mViewFlags = SOUND_EFFECTS_ENABLED|HAPTIC_FEEDBACK_ENABLED;
+ mViewFlags = SOUND_EFFECTS_ENABLED | HAPTIC_FEEDBACK_ENABLED;
++sInstanceCount;
}
@@ -2013,7 +2034,9 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
if (!setScrollContainer && (viewFlagValues&SCROLLBARS_VERTICAL) != 0) {
setScrollContainer(true);
}
-
+
+ computeOpaqueFlags();
+
a.recycle();
}
@@ -4700,7 +4723,35 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
*/
@ViewDebug.ExportedProperty
public boolean isOpaque() {
- return mBGDrawable != null && mBGDrawable.getOpacity() == PixelFormat.OPAQUE;
+ return (mPrivateFlags & OPAQUE_MASK) == OPAQUE_MASK;
+ }
+
+ private void computeOpaqueFlags() {
+ // Opaque if:
+ // - Has a background
+ // - Background is opaque
+ // - Doesn't have scrollbars or scrollbars are inside overlay
+
+ if (mBGDrawable != null && mBGDrawable.getOpacity() == PixelFormat.OPAQUE) {
+ mPrivateFlags |= OPAQUE_BACKGROUND;
+ } else {
+ mPrivateFlags &= ~OPAQUE_BACKGROUND;
+ }
+
+ final int flags = mViewFlags;
+ if (((flags & SCROLLBARS_VERTICAL) == 0 && (flags & SCROLLBARS_HORIZONTAL) == 0) ||
+ (flags & SCROLLBARS_STYLE_MASK) == SCROLLBARS_INSIDE_OVERLAY) {
+ mPrivateFlags |= OPAQUE_SCROLLBARS;
+ } else {
+ mPrivateFlags &= ~OPAQUE_SCROLLBARS;
+ }
+ }
+
+ /**
+ * @hide
+ */
+ protected boolean hasOpaqueScrollbars() {
+ return (mPrivateFlags & OPAQUE_SCROLLBARS) == OPAQUE_SCROLLBARS;
}
/**
@@ -5027,6 +5078,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
public void setHorizontalScrollBarEnabled(boolean horizontalScrollBarEnabled) {
if (isHorizontalScrollBarEnabled() != horizontalScrollBarEnabled) {
mViewFlags ^= SCROLLBARS_HORIZONTAL;
+ computeOpaqueFlags();
recomputePadding();
}
}
@@ -5056,6 +5108,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
public void setVerticalScrollBarEnabled(boolean verticalScrollBarEnabled) {
if (isVerticalScrollBarEnabled() != verticalScrollBarEnabled) {
mViewFlags ^= SCROLLBARS_VERTICAL;
+ computeOpaqueFlags();
recomputePadding();
}
}
@@ -5084,6 +5137,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
public void setScrollBarStyle(int style) {
if (style != (mViewFlags & SCROLLBARS_STYLE_MASK)) {
mViewFlags = (mViewFlags & ~SCROLLBARS_STYLE_MASK) | (style & SCROLLBARS_STYLE_MASK);
+ computeOpaqueFlags();
recomputePadding();
}
}
@@ -6848,6 +6902,8 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
requestLayout = true;
}
+ computeOpaqueFlags();
+
if (requestLayout) {
requestLayout();
}
diff --git a/core/java/android/widget/ListView.java b/core/java/android/widget/ListView.java
index c21c7fa..6686f75 100644
--- a/core/java/android/widget/ListView.java
+++ b/core/java/android/widget/ListView.java
@@ -21,6 +21,7 @@ import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.PixelFormat;
+import android.graphics.Paint;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.ColorDrawable;
import android.os.Parcel;
@@ -133,6 +134,7 @@ public class ListView extends AbsListView {
// used for temporary calculations.
private final Rect mTempRect = new Rect();
+ private Paint mDividerPaint;
// the single allocated result per list view; kinda cheesey but avoids
// allocating these thingies too often.
@@ -2813,12 +2815,20 @@ public class ListView extends AbsListView {
*/
@Override
public boolean isOpaque() {
- return (mCachingStarted && mIsCacheColorOpaque && mDividerIsOpaque) || super.isOpaque();
+ return (mCachingStarted && mIsCacheColorOpaque && mDividerIsOpaque &&
+ hasOpaqueScrollbars()) || super.isOpaque();
}
@Override
public void setCacheColorHint(int color) {
- mIsCacheColorOpaque = (color >>> 24) == 0xFF;
+ final boolean opaque = (color >>> 24) == 0xFF;
+ mIsCacheColorOpaque = opaque;
+ if (opaque) {
+ if (mDividerPaint == null) {
+ mDividerPaint = new Paint();
+ }
+ mDividerPaint.setColor(color);
+ }
super.setCacheColorHint(color);
}
@@ -2841,6 +2851,8 @@ public class ListView extends AbsListView {
final int first = mFirstPosition;
final boolean areAllItemsSelectable = mAreAllItemsSelectable;
final ListAdapter adapter = mAdapter;
+ final boolean isOpaque = isOpaque();
+ final Paint paint = mDividerPaint;
if (!mStackFromBottom) {
int bottom;
@@ -2852,12 +2864,18 @@ public class ListView extends AbsListView {
View child = getChildAt(i);
bottom = child.getBottom();
// Don't draw dividers next to items that are not enabled
- if (bottom < listBottom && (areAllItemsSelectable ||
- (adapter.isEnabled(first + i) && (i == count - 1 ||
- adapter.isEnabled(first + i + 1))))) {
- bounds.top = bottom;
- bounds.bottom = bottom + dividerHeight;
- drawDivider(canvas, bounds, i);
+ if (bottom < listBottom) {
+ if ((areAllItemsSelectable ||
+ (adapter.isEnabled(first + i) && (i == count - 1 ||
+ adapter.isEnabled(first + i + 1))))) {
+ bounds.top = bottom;
+ bounds.bottom = bottom + dividerHeight;
+ drawDivider(canvas, bounds, i);
+ } else if (isOpaque) {
+ bounds.top = bottom;
+ bounds.bottom = bottom + dividerHeight;
+ canvas.drawRect(bounds, paint);
+ }
}
}
}
@@ -2871,16 +2889,22 @@ public class ListView extends AbsListView {
View child = getChildAt(i);
top = child.getTop();
// Don't draw dividers next to items that are not enabled
- if (top > listTop && (areAllItemsSelectable ||
- (adapter.isEnabled(first + i) && (i == count - 1 ||
- adapter.isEnabled(first + i + 1))))) {
- bounds.top = top - dividerHeight;
- bounds.bottom = top;
- // Give the method the child ABOVE the divider, so we
- // subtract one from our child
- // position. Give -1 when there is no child above the
- // divider.
- drawDivider(canvas, bounds, i - 1);
+ if (top > listTop) {
+ if ((areAllItemsSelectable ||
+ (adapter.isEnabled(first + i) && (i == count - 1 ||
+ adapter.isEnabled(first + i + 1))))) {
+ bounds.top = top - dividerHeight;
+ bounds.bottom = top;
+ // Give the method the child ABOVE the divider, so we
+ // subtract one from our child
+ // position. Give -1 when there is no child above the
+ // divider.
+ drawDivider(canvas, bounds, i - 1);
+ } else if (isOpaque) {
+ bounds.top = top - dividerHeight;
+ bounds.bottom = top;
+ canvas.drawRect(bounds, paint);
+ }
}
}
}
generated by cgit v1.1 at 2025-08-18 09:30:09 +0000