Android AppWidget TextView: How to set background color at run time
- by Amit
I am trying to create an AppWidget, in which the background color of a TextView changes at random at specified periodic interval.
The TextView is defined in layout xml file as
<?xml version="1.0" encoding="utf-8" ?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/widget"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="@+id/message"
android:background="#ff99ff"
android:text="Hello Widget" />
</LinearLayout>
In update method, i have loaded the layout as
RemoteViews remoteView=new RemoteViews(context.getPackageName(),R.layout.widget_message);
To change the background of TextView i used the following statement
remoteView.setInt(R.id.message, "setBackgroundResource", R.color.col_1);
But i am getting a widget saying problem loading widget. If i remove the above line everything works fine.
LogCat says:
updateAppWidget couldn't find any
view, using error view
android.widget.RemoteViews$ActionException:
view: android.widget.TextView can't
use method with RemoteViews:
setBackgroundResource(int)
