* 返回占位图图片
*/
- (
UIImage *)imageForEmptyDataSet:(
UIScrollView *)scrollView {
[
UIImage imageNamed:
@""];
}
* 返回标题文字
*/
- (
NSAttributedString *)titleForEmptyDataSet:(
UIScrollView *)scrollView {
NSString *text =
@"No Application Found";
return [[
NSAttributedString alloc] initWithString:text attributes:
nil];
}
* 返回详情文字
*/
- (
NSAttributedString *)descriptionForEmptyDataSet:(
UIScrollView *)scrollView {
UISearchBar *searchBar =
self.searchDisplayController.searchBar;
NSString *text = [
NSString stringWithFormat:
@"There are no empty dataset examples for "%@".", searchBar.text];
NSMutableAttributedString *attributedString = [[
NSMutableAttributedString alloc] initWithString:text attributes:
nil];
[attributedString addAttribute:
NSFontAttributeName value:[
UIFont boldSystemFontOfSize:
17.0] range:[attributedString.string rangeOfString:searchBar.text]];
return attributedString;
}
* 返回文字按钮
*/
- (
NSAttributedString *)buttonTitleForEmptyDataSet:(
UIScrollView *)scrollView forState:(
UIControlState)state {
NSString *text =
@"Search on the App Store";
UIFont *font = [
UIFont systemFontOfSize:
16.0];
UIColor *textColor = [
UIColor colorWithHex:(state ==
UIControlStateNormal) ?
@"007aff" :
@"c6def9"];
NSMutableDictionary *attributes = [
NSMutableDictionary new];
[attributes setObject:font forKey:
NSFontAttributeName];
[attributes setObject:textColor forKey:
NSForegroundColorAttributeName];
return [[
NSAttributedString alloc] initWithString:text attributes:attributes];
}
* 返回图片按钮(如果设置了此方法,buttonTitleForEmptyDataSet: ,返回文字按钮方法就会失效
*/
- (
UIImage *)buttonImageForEmptyDataSet:(
UIScrollView *)scrollView forState:(
UIControlState)state {
return [
UIImage imageNamed:
@""];
}
* 自定义背景颜色
*/
- (
UIColor *)backgroundColorForEmptyDataSet:(
UIScrollView *)scrollView {
return [
UIColor whiteColor];
}
* 自定义视图 (关键方法,可以做一些自定义占位视图)
*/
* 设置垂直或者水平方向的偏移量,推荐使用verticalOffsetForEmptyDataSet这个方法
*
* @return 返回对应的偏移量(默认都为0)
*/
- (
CGPoint)offsetForEmptyDataSet:(
UIScrollView *)scrollView {
return
CGPointMake(
0,
-64.0);
}
* 设置垂直方向的偏移量 (推荐使用)
*/
- (
CGFloat)verticalOffsetForEmptyDataSet:(
UIScrollView *)scrollView {
}