如何根据UITextView内部的内容调整UIImageVIew的大小

Question

我有一个UIImageView，它的范围内有一个UITextView，我想根据UITextView中的文本调整UIImageView的大小。 我该怎么做呢？

这是我尝试过的：

- (void)textViewDidChange:(MSChatCell *)cell andText:(NSString *)text isBlue:(BOOL)blue
{
    NSLog(@"changing height");
    UITextView *textView;
    PFImageView *chat;

    if(blue){
    CGRect newFrame = [text boundingRectWithSize:cell.blueText.bounds.size options: NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:@"Arial" size:10.0],NSFontAttributeName, nil] context:nil];
    cell.blueText.frame = newFrame;
        cell.blueChat.frame = newFrame;

    }else{
        CGRect newFrame = [text boundingRectWithSize:cell.whiteText.bounds.size options: NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:@"Arial" size:10.0],NSFontAttributeName, nil] context:nil];

        cell.whiteText.frame = newFrame;
        cell.whiteChat.frame = newFrame;
    }

}

其中cell.whiteChat和cell.blueChat是UIImageViews， cell.whiteText和cell.blueText是UITextViews

Answer 1

好吧，计算您的文本占用的大小，然后使用它创建一个框架对我来说很有效。

CGRect blueTextFrame = cell.blueText.frame;

CGRect blueChatFrame = cell.blueChat.frame;

CGSize textSize = [sample sizeWithFont:[UIFont fontWithName:@"Arial" size:10.0]];

cell.blueTextFrame.size = textSize;

cell.blueChatFrame.size = textSize;

同样地，白色也可以。