/** Sets the view to show if the adapter is empty */
public void setEmptyView(View emptyView) {
mEmptyView = emptyView;
final T adapter = getAdapter();
final boolean empty = ((adapter == null) || adapter.isEmpty());
updateEmptyStatus(empty);
}
public static <E, T extends Collection<E>> T notEmpty(final T argument, final String name) {
if (argument == null) {
throw new IllegalArgumentException(name + " may not be null");
}
if (argument.isEmpty()) {
throw new IllegalArgumentException(name + " may not be empty");
}
return argument;
}
public static <E, T extends Collection<E>> T notEmpty(T t, String str) {
if (t == null) {
throw new IllegalArgumentException(str + " may not be null");
} else if (!t.isEmpty()) {
return t;
} else {
throw new IllegalArgumentException(str + " may not be empty");
}
}
void checkFocus() {
final T adapter = getAdapter();
final boolean empty = adapter == null || adapter.getCount() == 0;
final boolean focusable = !empty || isInFilterMode();
super.setFocusableInTouchMode(focusable && mDesiredFocusableInTouchModeState);
super.setFocusable(focusable && mDesiredFocusableState);
if (mEmptyView != null) {
updateEmptyStatus(adapter == null || adapter.isEmpty());
}
}
@SuppressLint("NewApi")
public void setEmptyView(View emptyView) {
mEmptyView = emptyView;
if (VERSION.SDK_INT >= 16
&& emptyView != null
&& emptyView.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
emptyView.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES);
}
final T adapter = getAdapter();
final boolean empty = adapter == null || adapter.isEmpty();
updateEmptyStatus(empty);
}
void checkFocus() {
final T adapter = getAdapter();
final boolean empty = adapter == null || adapter.getCount() == 0;
final boolean focusable = !empty || isInFilterMode();
// The order in which we set focusable in touch mode/focusable may matter
// for the client, see View.setFocusableInTouchMode() comments for more
// details
super.setFocusableInTouchMode(focusable && mDesiredFocusableInTouchModeState);
super.setFocusable(focusable && mDesiredFocusableState);
if (mEmptyView != null) {
updateEmptyStatus((adapter == null) || adapter.isEmpty());
}
}
protected void assertSize(final int size, final T queue) {
assertEquals("size()", size, queue.size());
assert queue.size() == size : "Expected size() " + size + ", found " + queue.size();
assert (size == 0) == queue.isEmpty()
: "Expected isEmpty() " + (size == 0) + ", found " + queue.isEmpty();
}
