在AppWidget里添加View都是通过RemoteView来做到,
然而RemoteView本身功能很弱,支持的操作很少,而且支持RemoteView的Widget很少,在Dev Guide中有下面这段:
A RemoteViews object (and, consequently, an App Widget) can support the following layout classes:
FrameLayout
LinearLayout
RelativeLayout
And the following widget classes:
AnalogClock
Button
Chronometer
ImageButton
ImageView
ProgressBar
TextView