UITableViewCell \u6709 heightForRowAtIndexPath \u53ef\u4ee5\u6307\u5b9a<\/p>\n
\u4f46\u662f\u5be6\u52d9\u4e0a\u7e3d\u662f\u6703\u78b0\u5230\u5ba2\u6236\u7684\u8981\u6c42\uff1a\u300c\u52d5\u614b\u5217\u9ad8\u300d<\/p>\n
\u82e5\u662f\u300c\u60f3\u4ee5\u6587\u5b57\u5167\u5bb9\u6c7a\u5b9a UILabel \u7684\u9ad8\u5ea6\u300d<\/p>\n
\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u7a0b\u5f0f<\/p>\n
\u5148\u7528\u300c\u6587\u5b57\uff0c\u5b57\u578b\u548c\u5bec\u5ea6\u300d(\u9019\u9ede\u8981\u4e8b\u5148\u6c7a\u5b9a\uff0c\u4e0d\u7136\u6c92\u8fa6\u6cd5\u7b97)\u8a08\u7b97\u51fa UILabel \u7684\u9ad8\u5ea6<\/p>\n
\u7136\u5f8c\u518d\u7528\u9019\u500b\u7b97\u51fa\u4f86\u7684\u9ad8\u5ea6\u53bb initWithFrame<\/p>\n
\u641e\u5b9a\uff0c\u6536\u5de5\u653e\u98ef<\/p>\n
<\/p>\n
+(float) getHeightForText:(NSString*) text withFont:(UIFont*) font andWidth:(float)width {
\nCGSize constraint = CGSizeMake(width , 20000.0f);
\nCGSize title_size;
\nfloat totalHeight;<\/p>\n
SEL selector = @selector(boundingRectWithSize:options:attributes:context:);
\nif ([text respondsToSelector:selector]) {
\ntitle_size = [text boundingRectWithSize:constraint
\noptions:NSStringDrawingUsesLineFragmentOrigin
\nattributes:@{ NSFontAttributeName : font }
\ncontext:nil].size;<\/p>\n
totalHeight = ceil(title_size.height);
\n} else {
\ntitle_size = [text sizeWithFont:font
\nconstrainedToSize:constraint
\nlineBreakMode:NSLineBreakByWordWrapping];
\ntotalHeight = title_size.height ;
\n}<\/p>\n
CGFloat height = MAX(totalHeight, 40.0f);
\nreturn height;
\n}<\/p>\n","protected":false},"excerpt":{"rendered":"
UITableViewCell \u6709 heightForRowAtIndexPath \u53ef\u4ee5\u6307\u5b9a \u4f46\u662f\u5be6\u52d9\u4e0a\u7e3d\u662f\u6703\u78b0\u5230\u5ba2\u6236\u7684\u8981\u6c42\uff1a\u300c\u52d5\u614b\u5217\u9ad8\u300d \u82e5\u662f\u300c\u60f3\u4ee5\u6587\u5b57\u5167\u5bb9\u6c7a\u5b9a UILabel \u7684\u9ad8\u5ea6\u300d \u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u7a0b\u5f0f \u5148\u7528\u300c\u6587\u5b57\uff0c\u5b57\u578b\u548c\u5bec\u5ea6\u300d(\u9019\u9ede\u8981\u4e8b\u5148\u6c7a\u5b9a\uff0c\u4e0d\u7136\u6c92\u8fa6\u6cd5\u7b97)\u8a08\u7b97\u51fa UILabel \u7684\u9ad8\u5ea6 \u7136\u5f8c\u518d\u7528\u9019\u500b\u7b97\u51fa\u4f86\u7684\u9ad8\u5ea6\u53bb initWithFrame \u641e\u5b9a\uff0c\u6536\u5de5\u653e\u98ef +(float) getHeightForText:(NSString*) text withFont:(UIFont*) font andWidth:(float)width { CGSize constraint = CGSizeMake(width , 20000.0f); CGSize title_size; float totalHeight; SEL selector = @selector(boundingRectWithSize:options:attributes:context:); if ([text respondsToSelector:selector]) … Continue reading