feat(WDialog): add Wdialog widget

Author: 2534290808

lib/dialog.dart

@@ -0,0 +1,86 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/cupertino.dart';
+
+class DialogActions {
+  DialogActions({this.text, this.onPressed});
+  final String text;
+  final VoidCallback onPressed;
+}
+
+class _AndroidDialog extends StatelessWidget {
+  _AndroidDialog({Key key, this.title, this.content, this.actions}) : super(key: key);
+
+  final String title;
+  final String content;
+  final List<DialogActions> actions;
+  @override
+  Widget build(BuildContext context) {
+    final ThemeData theme = Theme.of(context);
+    final TextStyle dialogTextStyle = theme.textTheme.subhead.copyWith(color: theme.textTheme.caption.color);
+    return AlertDialog(
+      title: title != null ? Text(title) : null,
+      content: Text(
+        content,
+        style: dialogTextStyle,
+      ),
+      actions: actions
+          .map((action) => FlatButton(
+                child: Text(action.text),
+                onPressed: () {
+                  Navigator.pop(context);
+                  if (action.onPressed != null) action.onPressed();
+                },
+              ))
+          .toList(),
+    );
+  }
+}
+
+class _IosDialog extends StatelessWidget {
+  _IosDialog({Key key, this.title, this.content, this.actions}) : super(key: key);
+
+  final String title;
+  final String content;
+  final List<DialogActions> actions;
+  @override
+  Widget build(BuildContext context) {
+    // TODO: implement build
+    return CupertinoAlertDialog(
+        title: title != null ? Text(title) : null,
+        content: Text(content),
+        actions: actions
+            .map(
+              (action) => CupertinoDialogAction(
+                    child: Text(action.text),
+                    isDefaultAction: true,
+                    onPressed: () {
+                      Navigator.pop(context);
+                      if (action.onPressed != null) action.onPressed();
+                    },
+                  ),
+            )
+            .toList());
+  }
+}
+
+class WDialog {
+  static show(BuildContext context, {String title, String content, List<DialogActions> actions = const [], TargetPlatform platform = TargetPlatform.android}) {
+    if (platform == TargetPlatform.android) {
+      showDialog(
+          context: context,
+          builder: (_) => _AndroidDialog(
+                title: title,
+                content: content,
+                actions: actions,
+              ));
+    } else {
+      showDialog(
+          context: context,
+          builder: (_) => _IosDialog(
+                title: title,
+                content: content,
+                actions: actions,
+              ));
+    }
+  }
+}

lib/flutter_weui.dart

@@ -9,3 +9,4 @@ export 'slider.dart';
 export 'switch.dart';
 export 'weui_icon.dart';
 export 'load_more.dart';
+export 'dialog.dart';