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Diffstat (limited to 'platform/ios/src/MGLMapView.mm')
| -rw-r--r-- | platform/ios/src/MGLMapView.mm | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/platform/ios/src/MGLMapView.mm b/platform/ios/src/MGLMapView.mm index d0d34dbfa9..740555840f 100644 --- a/platform/ios/src/MGLMapView.mm +++ b/platform/ios/src/MGLMapView.mm @@ -1015,6 +1015,14 @@ public: // This gets called when the view dimension changes, e.g. because the device is being rotated. - (void)layoutSubviews { + // Calling this here instead of in the scale bar itself because if this is done in the + // scale bar instance, it triggers a call to this this `layoutSubviews` method that + // calls `_mbglMap->setSize()` just below that triggers rendering update which triggers + // another scale bar update which causes a rendering update loop and a major performace + // degradation. The only time the scale bar's intrinsic content size _must_ invalidated + // is here as a reaction to this object's view dimension changes. + [self.scaleBar invalidateIntrinsicContentSize]; + [super layoutSubviews]; [self adjustContentInset]; |