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Languages & runtimes · #rect
Fix zero-width Rects, false contains() results, and missed intersections by checking coordinate order, layout timing, and coordinate space.
Learn how to combine clipping regions in Android custom views using Rect.union, with a worked example and the overflow and normalization risks to watch for.
Learn how to use the SVG <rect> element to create rectangles and rounded corners, including critical details on radius clamping, stroke clipping, and viewport resolution.
A decision guide for updating java.awt.Rectangle in hot rendering loops: when to mutate with setBounds or translate, when to allocate immutable snapshots, and how to verify the GC and thread-safety impact.
Learn how Hibernate's setFirstResult/setMaxResults enable offset-based pagination, its performance limits, and when to switch to keyset pagination for stable results.
Allocating a new Rect inside onTouchEvent or onDraw creates needless GC churn. Here's the field-caching pattern, where to invalidate it, and the mutability traps to avoid.
Learn how to spot empty or inverted Rect objects that break hit‑testing, drawing, or layout, and follow a step‑by‑step guide to verify, fix, and escalate the problem.
Spot and fix common Android Rect layout bugs—zero size, negative coordinates, stale reuse, and clipping—using a step‑by‑step diagnostic workflow and real code examples.
Learn how to combine two Android Rect objects into a bounding box using Rect.union, with steps for null safety, normalization, and verification. Note that union mutates the receiver.
android
java
hibernate