`next_gen_ui_demo`: Stop `Picture`s leaking (#1871)

2 years ago · c616e3213c
parent dd4fc132a1
commit c616e3213c
1 changed files with 5 additions and 2 deletions
--- a/next_gen_ui_demo/lib/common/shader_effect.dart
+++ b/next_gen_ui_demo/lib/common/shader_effect.dart
@ -296,6 +296,8 @@ class _RenderShaderSamplerBuilderWidget extends RenderProxyBox {
 class _ShaderSamplerBuilderLayer extends OffsetLayer {
  _ShaderSamplerBuilderLayer(this._callback);

+  ui.Picture? _lastPicture;
+
  Size get size => _size;
  Size _size = Size.zero;
  set size(Size value) {
@ -353,7 +355,8 @@ class _ShaderSamplerBuilderLayer extends OffsetLayer {
    } finally {
      image.dispose();
    }
-    final ui.Picture picture = pictureRecorder.endRecording();
-    builder.addPicture(offset, picture);
+    _lastPicture?.dispose();
+    _lastPicture = pictureRecorder.endRecording();
+    builder.addPicture(offset, _lastPicture!);
  }
 }