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Add Dartdoc for the TextureLayer's freeze parameter. (#20383)

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amirh 2018-08-09 14:09:33 -07:00 committed by GitHub
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commit f1549132d8
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1 changed files with 9 additions and 1 deletions
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packages/flutter/lib/src/rendering/layer.dart
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@ -212,7 +212,8 @@ class PictureLayer extends Layer {
/// for how to create and manage backend textures on iOS.
class TextureLayer extends Layer {
/// Creates a texture layer bounded by [rect] and with backend texture
/// identified by [textureId].
/// identified by [textureId], if [freeze] is true new texture frames will not be
/// populated to the texture.
TextureLayer({
@required this.rect,
@required this.textureId,
@ -225,6 +226,13 @@ class TextureLayer extends Layer {
/// The identity of the backend texture.
final int textureId;
/// When true the texture that will not be updated with new frames.
///
/// This is used when resizing an embedded Android views: When resizing
/// there is a short period during which the framework cannot tell
/// if the newest texture frame has the previous or new size, to workaround this
/// the framework "freezes" the texture just before resizing the Android view and unfreezes
/// it when it is certain that a frame with the new size is ready.
final bool freeze;
@override