46.UISearchBar的placeholder字体颜色和背景颜色

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1.改变searchbar的searchField属性

UITextField *searchField = [searchbar valueForKey:@"searchField"];

if (searchField) {

// 背景色

[searchField setBackgroundColor:[UIColor colorWithRed:0.074 green:0.649 blue:0.524 alpha:1.000]];

// 设置字体颜色 & 占位符 (必须)

searchField.textColor = [UIColor whiteColor];

//        searchField.placeholder = @"placeholder";

// 根据@"_placeholderLabel.textColor" 找到placeholder的字体颜色

[searchField setValue:[UIColor whiteColor] forKeyPath:@"_placeholderLabel.textColor"];

// 圆角

searchField.layer.cornerRadius = 10.0f;

searchField.layer.masksToBounds = YES;

}

2.改变searchBarde 图标样式

[self.searchBar setImage:[UIImage imageNamed:@""] forSearchBarIcon:UISearchBarIconSearch state:UIControlStateNormal];