snackbar

I am using Snackbar in android and I have implemented an action so that user can undo the action (the action is clearing all the items in the listview).Removing and adding the items back to the listview has already been done and working fine. My issue is that, items are stored in sqlite database and how can I delete the items from tables? (How can I know that the user has not clicked the undo button, so that I can completely remove the data from database). This is the code inside OnOptionsItemSelcted() case R.id.action_clear: final List<Word> temp = new ArrayList<Word>(data); data.clear();

Snackbar与Toast Snackbars provide brief feedback about an operation through a message at the bottom of the screen. Snackbars contain a single line of text directly related to the operation performed. They may contain a text action, but no icons. Toasts (Android only) are primarily used for system messaging. They also display at the bottom of the screen, but may not be swiped off-screen. Snackbar 可以自定义action，swiped off-screen。但是也有缺陷: 1. 多次show会产生多个实例(可以通过程序回收) 2. 同一时间只能显示一个snackbar Snackbar使用的时候需要一个控件容器用来容纳Snackbar.官方推荐使用CoordinatorLayout。 Having a CoordinatorLayout in your view hierarchy allows

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want to display a simple SnackBar inside Flutter 's stateful widget. My application creates new instance of MaterialApp with a stateful widget called MyHomePage . I try to show the SnackBar in showSnackBar() method. But it fails with ' The method 'showSnackBar' was called on null '. What's wrong with this code? class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return new MaterialApp( title: 'Flutter', theme: new ThemeData( primarySwatch: Colors.blue, ), home: new MyHomePage(), ); } } class MyHomePage

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: We need close one screen and open second screen. And show snackbar on second screen from first screen. I tried to use Navigator.push , but this screen is already open and we have this error "Bad state: Stream has already been listened to". 回答1: Instead of Snackbar i would suggest you to use Flushbar plugin for flutter it is easy to use and it'll take care of everything and u can customize it to a great extent . Snackbar needs a scaffold ancestor to work but Flushbar doesn't and it takes care of all the extra stuff itself and

So I've started using the new Snackbar in the Design Support Library, but I found that when you define "android:textColor" in your theme, it applies to the text color of the snackbar. This is obviously a problem if your primary text color is dark. Does anyone know a way around this or have advice for how I should color my text? EDIT January 2017: (Post-Answer) While there are some custom solutions to fix the problem below, it's probably good to provide the correct way to theme Snackbars. Firstly, you probably shouldn't be defining android:textColor in your themes at all (unless you really know

My project now is how to make a Snackbar displayed at the bottom of the screen. The Snackbar contain with editText and three button for selection categories. I use LayoutInflater and follow these code for my script, and it's work. My problem now is, how to get response when user click the button ? Here my code @Override public void onClick(View v) { CoordinatorLayout linearLayout = (CoordinatorLayout)findViewById(R.id.coordinatorLayout); final Snackbar snackbar = Snackbar.make(linearLayout, "", Snackbar.LENGTH_INDEFINITE); Snackbar.SnackbarLayout layout = (Snackbar.SnackbarLayout) snackbar

APP 反馈的三种形式：toast、snackbar、dialog 聪明的产品会在恰当的时间给予恰当的反馈，不反馈、反馈不及时、反馈不对都会让用户反感你的产品，从而失去用户。 现在的公司是做软硬件一体化，我负责OS层面的交互方案，这里会遇到要制定一些设计原则，从而让产品体验更统一。我们都知道，针对信息提醒，有一种设计形式叫toast，如何对toast进行规范，引发了我写这篇文章。 1.反馈 互联网产品存在两套反馈机制，一套是有明显界面变动的反馈，例如你点击淘宝列表页，立马就进入了商品详情页，页面的及时跳转是明显的视觉反馈；再比如你输入完账号密码，点击登录，登录成功，并进入了APP首页，这也是很明显的视觉反馈。 但，如果某种反馈不明显该怎么办？例如，你登录的时候你输错了账号密码，点击登录，是进入不了APP的，这个时候大部分产品都会给予toast提示用户：密码或账号输入错误，请重试。你看到这个提示之后，就会知道自己改怎么做了。这就是反馈的第二套机制：通过设计不同的形式来提示用户。 常见的反馈有三种样式：toast、snackbar、dialog。 2.Toast toast属于一种轻量级的反馈，常常以小弹框的形式出现，一般出现1到2秒会自动消失，可以出现在屏幕上中下任意位置，但同个产品会模块尽量使用同一位置，让用户产生统一认知。 在样式上，尽量和产品整体风格保持一致，这样会更和谐

The recent android library came out just a few days ago, but I would like to have the SnackBar appear on top of the screen, preferably within a RelativeLayout as it's parent view. How does one change the SnackBar 's initial alignment which I presume to be layout_alignParentBottom to layout_alignParentTop ? apollow It is possible to make the snackbar appear on top of the screen using this: Snackbar snack = Snackbar.make(parentLayout, str, Snackbar.LENGTH_LONG); View view = snack.getView(); FrameLayout.LayoutParams params = (FrameLayout.LayoutParams)view.getLayoutParams(); params.gravity =

I have a working snackbar, but it is only on each component, I want to add it on my service so I will just call it. This is my sample on my component.ts import { MdSnackBar, MdSnackBarRef } from '@angular/material'; ... export class EmployeeListComponent implements OnInit { public toastRef: MdSnackBarRef<any>; constructor(private _activatedRoute:ActivatedRoute,private router: Router, private http:PMISHttpService, private toast: MdSnackBar) { ngOnInit() { this.notify('test'); } ... notify (text: string) { this.toastRef = this.toast.open(text, null); setTimeout(() => { this.toastRef.dismiss(); }