UIImage *image=[UIImage imageNamed:@"booknote"];
image=[image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
[_BookmarkBtn setImage:image forState:UIControlStateNormal];
_BookmarkBtn.tintColor=[UIColor greenColor];
UIImage *image=[UIImage imageNamed:@"booknote"];
image=[image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
[_BookmarkBtn setImage:image forState:UIControlStateNormal];
_BookmarkBtn.tintColor=[UIColor greenColor];