child: Column( children: [ Container( margin: EdgeInsets.only( right: MyDimens.getWidth(207), ), width: 100, height: 100, decoration: BoxDecoration( borderRadius: BorderRadius.all(Radius.circular(10)), color: Colors.white, border: Border.all( width: 1, color: Color(0xff999999), ), ), // child: SizedBox( width: 20,height: 20,child: Utils.getLocalImgWidget('common/ic_img', 0, 0)), ), ], ), onTap: (){ UploadImgUtils.choseImage(context, _cropImage, hint: '用于上传头像'); }, ) ], ), );这里怎么能吧边框保存虚线

要将边框设置为虚线，可以使用`Border.fromBorderSide()`方法创建一个带有虚线边框的`BorderSide`对象，然后将其传递给`border`属性。以下是示例代码：

Container(
  margin: EdgeInsets.only(right: MyDimens.getWidth(207)),
  width: 100,
  height: 100,
  decoration: BoxDecoration(
    borderRadius: BorderRadius.all(Radius.circular(10)),
    color: Colors.white,
    border: Border.fromBorderSide(BorderSide(
      width: 1,
      color: Color(0xff999999),
      style: BorderStyle.dashed,
    )),
  ),
  onTap: () {
    UploadImgUtils.choseImage(context, _cropImage, hint: '用于上传头像');
  },
),

在上面的代码中，我们将`style`属性设置为`BorderStyle.dashed`，以将边框样式设置为虚线。这样就可以将边框保存为虚线了。

相关问题

Widget Maxcenter(RecordResultRecords item){ return Container( color: Color.fromRGBO(248,249,253,1), child: Column( children: [ MyDimens.height(height: 8), Text(item.createTime.substring(5,11) ?? "10/20", style: MyStyle.text_style_14_119, ), Container( width: MyDimens.getWidth(343), height: MyDimens.getHeight(109), margin: EdgeInsets.only( top: MyDimens.getHeight(10), right: MyDimens.getWidth(16), left: MyDimens.getWidth(16)), padding: EdgeInsets.only( top: MyDimens.getHeight(20), right: MyDimens.getWidth(16), left: MyDimens.getWidth(20) ), decoration: const BoxDecoration( color: Colors.white, borderRadius: BorderRadius.all(Radius.circular(10)), ), child: InkWell( child: Column( children: [ Row( mainAxisAlignment: MainAxisAlignment.spaceBetween, children: [ Text('举报用户', style: MyStyle.text_style_16_0, ), Text('用户名称', style: MyStyle.text_style_16_254,), ], ), MyDimens.height(height: 14), Text(item.tmrDesc??'暂无数据', maxLines: 3, overflow: TextOverflow.ellipsis, style: MyStyle.text_style_12_102,textAlign: TextAlign.left, ) ], ), onTap: (){ RouteUtil.startActivity(context, Reportdetal()); }, )) ], ), ); }【在这里怎么吧05-29数据放在一起】如果有05-30的数据的话并显示【05-30的数据】注：5-29的数据和05-30的数据是分开的

你可以在这个Widget里面添加一个判断语句，判断当前的数据是否为05-29的数据，如果是，就显示05-29的数据，如果不是，就不显示。然后再添加一个类似的判断语句，判断当前的数据是否为05-30的数据，如果是，就显示05-30的数据，如果不是，就不显示。具体代码如下：

Widget Maxcenter(RecordResultRecords item){
  return Container(
    color: Color.fromRGBO(248,249,253,1),
    child: Column(
      children: [
        MyDimens.height(height: 8),
        Text(item.createTime.substring(5,11) ?? "10/20", style: MyStyle.text_style_14_119, ),
        Container(
          width: MyDimens.getWidth(343),
          height: MyDimens.getHeight(109),
          margin: EdgeInsets.only( top: MyDimens.getHeight(10), right: MyDimens.getWidth(16), left: MyDimens.getWidth(16)),
          padding: EdgeInsets.only( top: MyDimens.getHeight(20), right: MyDimens.getWidth(16), left: MyDimens.getWidth(20) ),
          decoration: const BoxDecoration(
            color: Colors.white,
            borderRadius: BorderRadius.all(Radius.circular(10)),
          ),
          child: Column(
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Text('举报用户', style: MyStyle.text_style_16_0, ),
                  Text('用户名称', style: MyStyle.text_style_16_254,),
                ],
              ),
              MyDimens.height(height: 14),
              Text(item.tmrDesc??'暂无数据', maxLines: 3, overflow: TextOverflow.ellipsis, style: MyStyle.text_style_12_102,textAlign: TextAlign.left, ),
              if (item.createTime.substring(5,11) == "05-29") Text("05-29的数据"),
              if (item.createTime.substring(5,11) == "05-30") Text("05-30的数据"),
            ],
          ),
          onTap: (){ RouteUtil.startActivity(context, Reportdetal()); },
        )
      ],
    ),
  );
}

E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.photodiary, PID: 32496 java.lang.NullPointerException: Attempt to invoke virtual method 'int android.util.Size.getWidth()' on a null object reference at com.example.photodiary.Diary.createPreviewSession(Diary.java:139) at com.example.photodiary.Diary.access$100(Diary.java:44) at com.example.photodiary.Diary$1.onClick(Diary.java:75) at android.view.View.performClick(View.java:7125) at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1131) at android.view.View.performClickInternal(View.java:7102) at android.view.View.access$3500(View.java:801) at android.view.View$PerformClick.run(View.java:27336) at android.os.Handler.handleCallback(Handler.java:883) at android.os.Handler.dispatchMessage(Handler.java:100) at android.os.Looper.loop(Looper.java:214) at android.app.ActivityThread.main(ActivityThread.java:7356) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)

这是一个 Android 运行时错误，具体是在 `com.example.photodiary.Diary.createPreviewSession` 方法中的第 139 行，尝试在一个空对象引用上调用 `getWidth()` 方法。这意味着你需要检查代码中是否有一个 `null` 对象被错误地使用。你可以使用 Android Studio 的调试功能来逐步执行代码并查找问题所在。