-
imageData
可选
pageAction.ImageDataType
or
对象
. This is either a single
ImageData
object or a dictionary object.
Use a dictionary object to specify multiple
ImageData
objects in different sizes, so the icon does not have to be scaled for a device with a different pixel density. If
imageData
is a dictionary, the value of each property is an
ImageData
object, and its name is its size, like this:
{
16: image16,
32: image32
}
The browser will choose the image to use depending on the screen's pixel density. See
Choosing icon sizes
了解有关这的更多信息。
-
path
可选
string
or
对象
. This is either a relative path to an icon file or a dictionary object.
Use a dictionary object to specify multiple icon files in different sizes, so the icon does not have to be scaled for a device with a different pixel density. If
path
is a dictionary, the value of each property is a relative path, and its name is its size, like this:
{
16: "path/to/image16.jpg",
32: "path/to/image32.jpg"
}
The browser will choose the image to use depending on the screen's pixel density. See
Choosing icon sizes
了解有关这的更多信息。
若
path
is
null
, this will reset the page action's icon to the icon that was given in the
page_action
manifest key.
若
path
is
""
, this will reset the icon to the browser's global default icon (that is, the icon used if no icon is given in the
page_action
manifest key).
若
path
does not point to a valid icon, then no icon will be displayed.
-
tabId
integer
. The ID of the tab whose icon you want to set.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
