Flutter大军来到，Container战将率领字符大军来到，师徒二人渐入绝境。
class Container extends StatelessWidget {
/// Creates a widget that combines common painting, positioning, and sizing widgets. ///
/// The `height` and `width` values include the padding. ///
/// The `color` argument is a shorthand for `decoration: new ///
BoxDecoration(color: color)`, which means you cannot supply both a `color`
/// and a `decoration` argument. If you want to have both a `color` and a
/// `decoration`, you can pass the color as the `color` argument to the
/// `BoxDecoration`. Container({
Key key, this.alignment, this.padding, Color color, Decoration decoration, this.foregroundDecoration, double width, double height, BoxConstraints constraints,
this.margin, this.transform, this.child, }) : assert(margin == null || margin.isNonNegative), assert(padding == null || padding.isNonNegative),
assert(decoration == null || decoration.debugAssertIsValid()),
assert(constraints == null || constraints.debugAssertIsValid()),
assert(color == null || decoration == null,
'Cannot provide both a color and a decoration\n'
'The color argument is just a shorthand for "decoration: new BoxDecoration(color: color)".' ), decoration = decoration ?? (color != null ? BoxDecoration(color: color) : null),
constraints = (width != null || height != null)
? constraints?.tighten(width: width, height: height)
?? BoxConstraints.tightFor(width: width, height: height) : constraints, super(key: key);
/// The [child] contained by the container. ///
/// If null, and if the [constraints] are unbounded or also null, the
/// container will expand to fill all available space in its parent, unless
/// the parent provides unbounded constraints, in which case the container
/// will attempt to be as small as possible. ///
/// {@macro flutter.widgets.child} final Widget child;
/// Align the [child] within the container. ///
/// If non-null, the container will expand to fill its parent and position its ///
child within itself according to the given value. If the incoming
/// constraints are unbounded, then the child will be shrink-wrapped instead. ///
/// Ignored if [child] is null. ///
/// See also: ///
/// * [Alignment], a class with convenient constants typically used to
/// specify an [AlignmentGeometry].
/// * [AlignmentDirectional], like [Alignment] for specifying alignments
/// relative to text direction. final AlignmentGeometry alignment;
/// Empty space to inscribe inside the [decoration]. The [child], if any, is
/// placed inside this padding. ///
/// This padding is in addition to any padding inherent in the [decoration];
/// see [Decoration.padding]. final EdgeInsetsGeometry padding;
/// The decoration to paint behind the [child]. ///
/// A shorthand for specifying just a solid color is available in the
/// constructor: set the `color` argument instead of the `decoration`
/// argument. ///
/// The [child] is not clipped to the decoration. To clip a child to the shape
/// of a particular [ShapeDecoration], consider using a [ClipPath] widget. final Decoration decoration; /// The decoration to paint in front of the [child]. final Decoration foregroundDecoration;
/// Additional constraints to apply to the child. ///
/// The constructor `width` and `height` arguments are combined with the
/// `constraints` argument to set this property. ///
/// The [padding] goes inside the constraints. final BoxConstraints constraints;
/// Empty space to surround the [decoration] and [child]. final EdgeInsetsGeometry margin;
/// The transformation matrix to apply before painting the container. final Matrix4 transform;
庙外，Container自报家门:
吾乃Widget家族战将，Container，扇仙老儿速来一战。
捷特凌然出战，道一句:呔，吾师名号岂容汝等污秽。出手便是一招龙跃于渊，将对手团团围住，正在升龙之时。
Container一笑:这招不差，可惜火候不足。仅一挣，就破了这招。
藏扇仙出，bgm起，以心传心:
徒儿，为师现在深中灵蛛之毒，气力不济，这第四式也只能使出八成威力，而且只能使用一次。你能学到什么程度，还要看你造化。
只见庙前，藏扇仙身发蓝光，纳天地灵气，运气于掌，一时间飞沙走石，
呵道:正则十八式，第四式-挫骨...雷电交加，天地共震，container瞬间粉身碎骨，留下了一堆渣渣。
Widget---child
AlignmentGeometry---alignment
EdgeInsetsGeometry---padding
Decoration---decoration
Decoration---foregroundDecoration
BoxConstraints---constraints
EdgeInsetsGeometry---margin Matrix4---transform
藏扇仙：
...扬灰。
| 属性 | 属性类型 |
|---|---|
| foregroundDecoration | Decoration |
| padding | EdgeInsetsGeometry |
| margin | EdgeInsetsGeometry |
| transform | Matrix4 |
| alignment | AlignmentGeometry |
| decoration | Decoration |
| constraints | BoxConstraints |
| child | Widget |
气劲回流，扇仙一口呕红，卧倒在地。捷特:
师傅，你感觉如何？藏扇仙:无碍，这一式，你看得如何？捷特:这招太厉害了，不过不瞒您说……刚才风大，沙子迷眼了，没看清。”
此时远处渐现Text大旗，藏扇仙:唉，天意啊，天意，如今追兵已至，吾命休矣。
捷特:师傅莫灰心，从这残骸中，您的气劲尚存，我似能领略一二。您将Container中的属性与类型分离出来
private static void regexWidget(String target) {
Map<String,String> fieldMap= new HashMap();
String regex="final (?<type>\\w*) (?<name>\\w*);";
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(target);
while (matcher.find()){
fieldMap.put(matcher.group("name"),matcher.group("type")); }
createTable(fieldMap); }
然后将分理处的碎片进行重组,成为markdowon的字符串
private static void createTable(Map<String,String> fieldMap) {
String title="属性 | 属性类型\n";
String syb="---|---\n"; StringBuilder sb= new StringBuilder(title);
sb.append(syb); fieldMap.forEach((k,v)->{
sb.append(k).append("|").append(v).append("\n"); });
System.out.println(sb.toString()); }
藏扇仙:“说得不差，这挫骨扬灰重在一挫，一扬。将对方粉碎后，提取有用信息，进行重建。”
属性 | 属性类型 ---|---
foregroundDecoration|Decoration
padding|EdgeInsetsGeometry
margin|EdgeInsetsGeometry
transform|Matrix4 alignment|AlignmentGeometry
decoration|Decoration constraints|BoxConstraints child|Widget
Text来到，派出TextStyle大将，捷特应战，便出一招挫骨扬灰
| 属性 | 属性类型 |
|---|---|
| textBaseline | TextBaseline |
| backgroundColor | Color |
| decorationStyle | TextDecorationStyle |
| color | Color |
| wordSpacing | double |
| decorationThickness | double |
| letterSpacing | double |
| foreground | Paint |
| fontStyle | FontStyle |
| locale | Locale |
| decorationColor | Color |
| fontFamily | String |
| _package | String |
| background | Paint |
| inherit | bool |
| fontSize | double |
| debugLabel | String |
| decoration | TextDecoration |
| fontWeight | FontWeight |
| height | double |
Text上阵，捷特应战，一招挫骨扬灰
| 属性 | 属性类型 |
|---|---|
| softWrap | bool |
| data | String |
| textAlign | TextAlign |
| semanticsLabel | String |
| textWidthBasis | TextWidthBasis |
| locale | Locale |
| textDirection | TextDirection |
| textScaleFactor | double |
| overflow | TextOverflow |
| strutStyle | StrutStyle |
| maxLines | int |
| textSpan | InlineSpan |
| style | TextStyle |
捷特:师傅，我似领悟了要诀，不知是否可以直攻widgets大本营，一举歼灭？
藏扇仙:你看这，火候欠佳，这渣子不太纯正，你还差得远呢。
捷特:那第五式呢?
藏扇仙:学会第五式-七进七出，你倒可以到Flutter的SDK找到widgets大本营，
通过文件的循环读取，来个火烧连营，一举歼灭。