问题
I am following http://www.helloandroid.com/files/xmaswidget/android_howto-hellowidget.pdf for developing a widget. I am unable to launch a widget on to the home screen. When running the application I am getting the errors like No Launcher activity found and The launch will only sync the application package on the device! Looking for an answer.
回答1:
It could be that you don't have the right setup in your AndroidManifest.xml
Have you seen this post? Android sample app not showing up
来源：https://stackoverflow.com/questions/3888383/launching-android-widget