Displaying images on android widgets using html & TextView
I am trying to display images dynamically on a home screen widget. As RemoveViews offer a very limited set of methods to interact with the layout, I'm trying to use HTML to get 开发者_如何学JAVAthe same effect.
Regular HTML displays ok (<u>,<b>
etc) however I can't get images to display. Instead I get a little empty square appear in the TextView.
E.g.
s = "<b>Hello</b> <img src='world'/>";
ImageGetter imgGetter = new ImageGetter(context);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);
views.setTextViewText(R.id.textarea, Html.fromHtml(s, imgGetter, null));
The image getter looks like the following:
public class ImageGetter implements Html.ImageGetter
{
Context c;
public ImageGetter(Context c)
{
this.c = c;
}
public Drawable getDrawable(String source) {
Drawable d = null;
int resID = c.getResources().getIdentifier(source, "drawable", c.getPackageName());
d = c.getApplicationContext().getResources().getDrawable(resID);
d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
return d;
}
}
The code works fine if I am using a regular Activity. I suspect that this is a bug/undocumented feature of android when used with a AppWidgetProvider. I just want some confirmation.
I am trying to display images dynamically on a home screen widget.
Use ImageView
. Update the app widget when you wish to change the image.
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