小编Sin*_*nko的帖子

Firebase消息传递不活动,与AppMeasurementService断开连接

我试图使用FCM消息将通知发送到Android模拟器设备中,但我没有收到任何通知。google app ID与google-services.json中的相同

这是我从控制台得到的:

D / FA:已连接到远程服务

V / FA:处理排队的服务任务:1

V / FA:不活动,正在与AppMeasurementService断开连接

我的build.gradle(Module:app):

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.1"
    defaultConfig {
        applicationId "com.example.cris.firebasenotificationexam"
        minSdkVersion 22
        targetSdkVersion 23
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....

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.4.0'
    apply plugin: 'com.google.gms.google-services'
    compile 'com.google.firebase:firebase-messaging:9.0.2'
}
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有人知道如何解决此问题吗?

android firebase firebase-cloud-messaging

7
推荐指数
1
解决办法
2万
查看次数

使用FadeInImage Flutter正确适合图像

在此处输入图片说明

您好,我正在使用带有占位符和图像的FadeInImage,但是第二个图像没有覆盖整个父对象,我使用的是fit:BoxFit.cover,但是无论如何结果都不好。任何人都知道如何使其成为可能。这是我的实际代码。'document [_newsImage]是从CloudFirebase获取的URL。

      Widget _itemCard(BuildContext context, DocumentSnapshot document, int index) {
    return new Padding(
        padding: EdgeInsets.fromLTRB(8.0, 8.0, 8.0, 8.0),
        child: new Card(
            child: Column(children: <Widget>[
          new Container(
              height: 250.0,
              child: new FadeInImage.assetNetwork(
                placeholder: 'assets/images/esperanza.jpg',
                image: document[_newsImage],
                fit: BoxFit.cover,
              )),
          Container(
              height: 150.0,
              child: Padding(
                padding: EdgeInsets.fromLTRB(16.0, 0.0, 16.0, 0.0),
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.spaceAround,
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: <Widget>[
                    Row(
                        mainAxisAlignment: MainAxisAlignment.spaceBetween,
                        children: <Widget>[
                          Text(
                            document[_newsTitle],
                            style: TextStyle(
                                color: Colors.black,
                                fontWeight: FontWeight.bold,
                                fontSize: 16),
                          ),
                          Text(document[_newsDate])
                        ]),
                    Text(
                      document[_textShortDescription],
                      style: TextStyle(color: Colors.grey, fontSize: …
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flutter flutter-layout flutter-animation

5
推荐指数
1
解决办法
1624
查看次数

如何在 Flutter 中的日历轮播中单击时处理按钮颜色

我正在使用日历轮播日历轮播小部件进行颤振。我正在尝试单击日历上的随机日期并更改按钮颜色并保持此颜色,但现在我无法获得此行为。这是我的代码:

import 'package:flutter/material.dart';
import 'package:father_home_flutter/model/constants.dart';
import 'package:flutter_calendar_carousel/classes/event.dart';
import 'package:flutter_calendar_carousel/classes/event_list.dart';
import 'package:flutter_calendar_carousel/flutter_calendar_carousel.dart'
    show CalendarCarousel;

class ScreenCalendar extends StatefulWidget {
  @override
  _ScreenCalendarState createState() => new _ScreenCalendarState();
}

class _ScreenCalendarState extends State<ScreenCalendar> {
  static String noEventText = "No event here";
  String calendarText = noEventText;

  @override
  void initState() {
    _markedDateMap.add(
        new DateTime(2019, 1, 25),
        new Event(
          date: new DateTime(2019, 1, 25),
          title: 'Event 5',
          icon: _eventIcon,
        ));

    _markedDateMap.add(
        new DateTime(2019, 1, 10),
        new Event(
          date: new DateTime(2019, 1, 10),
          title: 'Event 4', …
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calendar widget flutter

5
推荐指数
1
解决办法
4581
查看次数