How would one change the android:src
XML property programatically of a FloatingActionButton or Button widget? I have a button defined as following within an activity:
FloatingActionButton floatingActionButton = (FloatingActionButton) this.findViewById(R.id.start_button);
It has an initial android:src
set as follows:
android:src="@android:drawable/ic_media_play"
I'm trying to utilize the setImageResource(int id) to change the android:src
XML property, but how to I access a Drawable icon such as ic_media_pause
after a button click that occurs for example. When I try to pass in R.drawable.ic_media_pause
to the setImageResource()
method I received an cannot resolve symbol error.
floatingActionButton.setImageResource(R.drawable.ic_media_pause);
How do I get at the available R.drawable resources to pass it in as an argument.
Any help would be great appreciated. Thank you!
You're trying to access a default icon included in the SDK. You need to prefix your resource identifier with "android." For example:
floatingActionButton.setImageResource(android.R.drawable.ic_media_pause);
this will allow you to reference the default icons.
:)
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.