layout

问题 I am battling this DropDownItem box error, everything seems to work, but pops up the yellow out of bounds while it loads. Tried several things and can not get it resolved. I have this code for my Widget . @override Widget build(BuildContext context) { var _children = <Widget>[ !_createNew ? _referrerPractice() : _referrerCreate(), ]; return new Scaffold( appBar: new AppBar( title: new Text(widget.title), ), body: new Column( mainAxisSize: MainAxisSize.max, children: _children, )); } I then

问题 I am battling this DropDownItem box error, everything seems to work, but pops up the yellow out of bounds while it loads. Tried several things and can not get it resolved. I have this code for my Widget . @override Widget build(BuildContext context) { var _children = <Widget>[ !_createNew ? _referrerPractice() : _referrerCreate(), ]; return new Scaffold( appBar: new AppBar( title: new Text(widget.title), ), body: new Column( mainAxisSize: MainAxisSize.max, children: _children, )); } I then

问题 I am battling this DropDownItem box error, everything seems to work, but pops up the yellow out of bounds while it loads. Tried several things and can not get it resolved. I have this code for my Widget . @override Widget build(BuildContext context) { var _children = <Widget>[ !_createNew ? _referrerPractice() : _referrerCreate(), ]; return new Scaffold( appBar: new AppBar( title: new Text(widget.title), ), body: new Column( mainAxisSize: MainAxisSize.max, children: _children, )); } I then

问题 I am battling this DropDownItem box error, everything seems to work, but pops up the yellow out of bounds while it loads. Tried several things and can not get it resolved. I have this code for my Widget . @override Widget build(BuildContext context) { var _children = <Widget>[ !_createNew ? _referrerPractice() : _referrerCreate(), ]; return new Scaffold( appBar: new AppBar( title: new Text(widget.title), ), body: new Column( mainAxisSize: MainAxisSize.max, children: _children, )); } I then

问题 Without using safeAreaLayoutGuide (I am targeting IOS 9+), is there any way to programmatically get the height of the "safe area" in IOS without having to create a new view (constrained to the safe area) solely for this purpose? I can't set an outlet to the safe area because it's not a UIView... or even a class of any sort. And if I simply use self.view.height in the ViewController, it's going to be too high (wrong). Is there some other way to do it? 回答1: In a UIViewController you can use the

问题 Without using safeAreaLayoutGuide (I am targeting IOS 9+), is there any way to programmatically get the height of the "safe area" in IOS without having to create a new view (constrained to the safe area) solely for this purpose? I can't set an outlet to the safe area because it's not a UIView... or even a class of any sort. And if I simply use self.view.height in the ViewController, it's going to be too high (wrong). Is there some other way to do it? 回答1: In a UIViewController you can use the

问题 I’m tying to position a circle in the middle of the component’s root DOM element: var App = React.createClass({ render: function() { return <svg ref="svg"> <circle r="9" cx={this.centerX()} cy="15"/> </svg>; }, centerX: function() { var svg = this.refs.svg.getDOMNode(); return svg.offsetLeft + Math.round(svg.offsetWidth / 2); } }); http://jsfiddle.net/NV/94tCQ/ Chicken-and-egg problem takes place here: this.refs is undefined on the first render. What’s the best way to solve this it? I would

问题 Android O introduces a new feature, Fonts in XML, which lets you use fonts as resources. And I am creating the font folder in resource file as it provided by Android developer, but the problem is that I am getting error that file name must end with .xml while using the font folder which is provided in Android O release. Please check the below layout for it. <TextView android:id="@+id/txtMsgCount" android:layout_width="wrap_content" android:layout_height="16dp" android:background="@drawable

问题 After selecting cell from viewDidLoad Layout is change Before select cell After select cell let indexPath = IndexPath(row: SelectedFolderIndex, section: 0) collectionView.selectItem(at: indexPath, animated: false, scrollPosition: .centeredVertically) Layout func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize { return CGSize(width: collectionView.frame.width/2.2, height: 55) } ViewDidLoad let

问题 I have two XYChart s that I want to display vertically aligned. The two graphs share the same x axis, but they use different data sets, which values are not of the same order of magnitude. This makes the y axis labels quite different in size. In the end, the two x axes are not aligned anymore. My objective is to align those x axes. One proposed solution offers a workaround by rotating the y axis labels, making the label width identical. While this works (and I thank the contributor for his