颤音：较大容器中的文本文本对齐
我可以没有任何问题将提示文本与中心对齐，但是当用户开始输入文本框时，我似乎无法使其与中心保持一致。
当将最大值设置为1时，就没有问题，但是当将其设置为1（或在我的情况下为null）时，默认情况下它似乎与顶部保持一致。
有什么方法可以纠正此问题吗？
Container(
width: screenWidth / 1.2,
height: 120,
padding:
EdgeInsets.symmetric(horizontal: 0),
child: TextField(
// autofocus: false,
controller: postText,
keyboardType: TextInputType.text,
maxLines: 10,
textAlign: TextAlign.center,
textAlignVertical:
TextAlignVertical.center,
style: TextStyle(
fontFamily: 'Michroma',
color: selectedFont,
fontSize: 12, // 12
),
decoration: InputDecoration(
hintText: '\n\nType away ! :\n\n\n',
hintStyle: TextStyle(
color: fontColour,
fontFamily: 'Michroma',
fontWeight: FontWeight.bold,
fontSize: 12,
),
filled: true,
fillColor: screenColour,
contentPadding: EdgeInsets.symmetric(
vertical: 8.0,
horizontal: 10.0,
),
border: OutlineInputBorder(
borderRadius: BorderRadius.all(
Radius.circular(20.0),
), // 32
),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(
color: borderColour,
width: 1.0,
),
borderRadius: BorderRadius.all(
Radius.circular(20.0),
), // 32
),
focusedBorder: OutlineInputBorder(
borderSide: BorderSide(
color: borderColour,
width: 2.0,
),
borderRadius: BorderRadius.all(
Radius.circular(20.0),
), // 32
),
),
),
),
I can align the hint text to the center with no issues, but when the user starts typing into the textbox, I can't seem to get it to align to the center.
When maxLines are set to 1, there isn't an issue, but when it is set to more than 1 (or to null in my case), then it seems to align to the top by default.
Is there any way to correct this?
Container(
width: screenWidth / 1.2,
height: 120,
padding:
EdgeInsets.symmetric(horizontal: 0),
child: TextField(
// autofocus: false,
controller: postText,
keyboardType: TextInputType.text,
maxLines: 10,
textAlign: TextAlign.center,
textAlignVertical:
TextAlignVertical.center,
style: TextStyle(
fontFamily: 'Michroma',
color: selectedFont,
fontSize: 12, // 12
),
decoration: InputDecoration(
hintText: '\n\nType away ! :\n\n\n',
hintStyle: TextStyle(
color: fontColour,
fontFamily: 'Michroma',
fontWeight: FontWeight.bold,
fontSize: 12,
),
filled: true,
fillColor: screenColour,
contentPadding: EdgeInsets.symmetric(
vertical: 8.0,
horizontal: 10.0,
),
border: OutlineInputBorder(
borderRadius: BorderRadius.all(
Radius.circular(20.0),
), // 32
),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(
color: borderColour,
width: 1.0,
),
borderRadius: BorderRadius.all(
Radius.circular(20.0),
), // 32
),
focusedBorder: OutlineInputBorder(
borderSide: BorderSide(
color: borderColour,
width: 2.0,
),
borderRadius: BorderRadius.all(
Radius.circular(20.0),
), // 32
),
),
),
),
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评论（1）
您需要在提示文本值前面删除\ n \ n表达式，因为\ n可以切换到新线路。
在您的情况下，您将两次切换。这就是为什么提示文本不会出现在您输入的位置的原因。
当您删除该表达式时，可能不会在中心。因此，您可以通过以下内容进行居中；
You need to delete \n\n expression in front of the hint text value because \n provides us to switch to a new line.
In your case, you switch the line you in two times. That is why the hint text is not appearing where you type.
When you remove that expression, probably it will not be in the center. so you can center it by doing following;