Prevent the GC from destroying the underlying native object (10b06842) · Commits · e / os / android_frameworks_base

graphics/java/android/graphics/PathMeasure.java

+5 −4

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		package android.graphics;

		public class PathMeasure {
		private Path mPath;

		/**
		* Create an empty PathMeasure object. To uses this to measure the length
		@@ -28,6 +29,7 @@ public class PathMeasure {
		* is used. If the path is modified, you must call setPath with the path.
		*/
		public PathMeasure() {
		mPath = null;
		native_instance = native_create(0, false);
		}

		@@ -46,8 +48,8 @@ public class PathMeasure {
		* even if its contour was not explicitly closed.
		*/
		public PathMeasure(Path path, boolean forceClosed) {
		// note: the native side makes a copy of path, so we don't need a java
		// reference to it here, since it's fine if it gets GC'd
		// The native implementation does not copy the path, prevent it from being GC'd
		mPath = path;
		native_instance = native_create(path != null ? path.ni() : 0,
		forceClosed);
		}
		@@ -56,8 +58,7 @@ public class PathMeasure {
		* Assign a new path, or null to have none.
		*/
		public void setPath(Path path, boolean forceClosed) {
		// note: the native side makes a copy of path, so we don't need a java
		// reference to it here, since it's fine if it gets GC'd
		mPath = path;
		native_setPath(native_instance,
		path != null ? path.ni() : 0,
		forceClosed);