/// <summary>Create a new component identifier from a Context and class name.</summary>
/// <remarks>Create a new component identifier from a Context and class name.</remarks>
/// <param name="pkg">
/// A Context for the package implementing the component,
/// from which the actual package name will be retrieved.
/// </param>
/// <param name="cls">
/// The name of the class inside of <var>pkg</var> that
/// implements the component.
/// </param>
public ComponentName(android.content.Context pkg, string cls)
{
if (cls == null)
{
throw new System.ArgumentNullException("class name is null");
}
mPackage = pkg.getPackageName();
mClass = cls;
}
/// <summary>Gets a drawable given a value provided by a suggestion provider.</summary>
/// <remarks>
/// Gets a drawable given a value provided by a suggestion provider.
/// This value could be just the string value of a resource id
/// (e.g., "2130837524"), in which case we will try to retrieve a drawable from
/// the provider's resources. If the value is not an integer, it is
/// treated as a Uri and opened with
/// <see cref="android.content.ContentResolver.openOutputStream(System.Uri, string)">android.content.ContentResolver.openOutputStream(System.Uri, string)
/// </see>
/// .
/// All resources and URIs are read using the suggestion provider's context.
/// If the string is not formatted as expected, or no drawable can be found for
/// the provided value, this method returns null.
/// </remarks>
/// <param name="drawableId">
/// a string like "2130837524",
/// "android.resource://com.android.alarmclock/2130837524",
/// or "content://contacts/photos/253".
/// </param>
/// <returns>a Drawable, or null if none found</returns>
private android.graphics.drawable.Drawable getDrawableFromResourceValue(string drawableId
)
{
if (drawableId == null || drawableId.Length == 0 || "0".Equals(drawableId))
{
return(null);
}
try
{
// First, see if it's just an integer
int resourceId = System.Convert.ToInt32(drawableId);
// It's an int, look for it in the cache
string drawableUri = android.content.ContentResolver.SCHEME_ANDROID_RESOURCE + "://"
+ mProviderContext.getPackageName() + "/" + resourceId;
// Must use URI as cache key, since ints are app-specific
android.graphics.drawable.Drawable drawable = checkIconCache(drawableUri);
if (drawable != null)
{
return(drawable);
}
// Not cached, find it by resource ID
drawable = mProviderContext.getResources().getDrawable(resourceId);
// Stick it in the cache, using the URI as key
storeInIconCache(drawableUri, drawable);
return(drawable);
}
catch (System.ArgumentException)
{
// It's not an integer, use it as a URI
android.graphics.drawable.Drawable drawable = checkIconCache(drawableId);
if (drawable != null)
{
return(drawable);
}
System.Uri uri = Sharpen.Util.ParseUri(drawableId);
drawable = getDrawable(uri);
storeInIconCache(drawableId, drawable);
return(drawable);
}
catch (android.content.res.Resources.NotFoundException)
{
// It was an integer, but it couldn't be found, bail out
android.util.Log.w(LOG_TAG, "Icon resource not found: " + drawableId);
return(null);
}
}
/// <summary>Create a new component identifier from a Context and Class object.</summary>
/// <remarks>Create a new component identifier from a Context and Class object.</remarks>
/// <param name="pkg">
/// A Context for the package implementing the component, from
/// which the actual package name will be retrieved.
/// </param>
/// <param name="cls">
/// The Class object of the desired component, from which the
/// actual class name will be retrieved.
/// </param>
public ComponentName(android.content.Context pkg, System.Type cls)
{
mPackage = pkg.getPackageName();
mClass = cls.FullName;
}
public override string getPackageName()
{
return(mBase.getPackageName());
}