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xml - How to create a floating action button (FAB) in android, using AppCompat v21?

I would like to create a floating action button (to add items to a listview), like google calendar, maintaining ... elevation, but does not work See Question&Answers more detail:os...

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reactjs - How to minimize the size of webpack's bundle?

I'm writing a web app using react and webpack as my module bundler. My jsx code is really light so far, the size of ... bcrypt": "~0.8.5" } } See Question&Answers more detail:os...

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how to implement ASP.NET Identity to an empty MVC project

I create a new empty MVC project and I want to add identity to it. Now I do not know how to do this ... in my own database how to manage users See Question&Answers more detail:os...

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What TypeScript configuration produces output closest to Node.js 14 capabilities?

With Node.js bringing updated support for ES2020 and adding support for ES modules, how can TypeScript be ... all these new features? See Question&Answers more detail:os...

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jpa - Testing an EJB with JUnit

How should I test an EJB 3.1 which gets an instance of EntityManager injected? A possible EJB: @Stateless ... provider names had been found. See Question&Answers more detail:os...

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php - How to use events in yii2?

I've been through the documentation and all the articles on Yii2 events found using Google. Can someone provide ... where it may seem logical? See Question&Answers more detail:os...

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java - Class Not Found: Empty Test Suite in IntelliJ

I'm just starting the computer science program at my college, and I'm having some issues with IntelliJ. When I ... version of IntelliJ IDEA CE. See Question&Answers more detail:os...

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How can I make sense of the `else` clause of Python loops?

Many Python programmers are probably unaware that the syntax of while loops and for loops includes an optional ... to this question somewhere. See Question&Answers more detail:os...

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bash - What does `kill -0 $pid` in a shell script do?

Basically, what signal does '0' represent, because here I see SIGNAL numbers starting from 1. See Question&Answers more detail:os...

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python - What is dtype('O'), in pandas?

I have a dataframe in pandas and I'm trying to figure out what the types of its values are. I am unsure what ... ('O') What does this mean? See Question&Answers more detail:os...

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c# - Is it bad practice to return from within a try catch finally block?

So I came across some code this morning that looked like this: try { x = SomeThingDangerous(); return x; ... returning from within a try block? See Question&Answers more detail:os...

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c++ - Do ALL virtual functions need to be implemented in derived classes?

This may seem like a simple question, but I can't find the answer anywhere else. Suppose I have the following ... that are pure virtual? Thanks See Question&Answers more detail:os...

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objective c - Dark shadow on navigation bar during segue transition after upgrading to Xcode 5.1 and iOS 7.1

When I am navigating back & forth between parent and child controllers in a master - detail navigation controller, i see ... I get rid of it? See Question&Answers more detail:os...

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android - ADB Driver and Windows 8.1

I waste a lot of time trying to successfully install the ADB driver for my tablet in Windows 8.1. So here ... case anyone has the same problem. See Question&Answers more detail:os...

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javascript - How to properly handle session and access token with Facebook PHP SDK 3.0?

In the PHP 3.0 SDK there is no getSession() or any session handling from outside the Facebook api available. Some days ... (); } }); return; } See Question&Answers more detail:os...

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How can I get the last 7 characters of a PHP string?

How would I go about grabbing the last 7 characters of the string below? For example: $dynamicstring = " ... The new string is: 5409els See Question&Answers more detail:os...

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sql server - How do I move a table into a schema in T-SQL

I want to move a table into a specific Schema using T-SQL? I am using SQL Server 2008. See Question&Answers more detail:os...

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mysql - How to drop all tables from the database with manage.py CLI in Django?

How can I drop all tables from a database using manage.py and command line? Is there any way to do that ... execute it from a .NET application? See Question&Answers more detail:os...

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javascript - Disable zoom on input focus in Android webpage

Here's the dilema, I have a webpage (only for android devices) and in that page I have an input box (a ... e.preventDefault();}); Any ideas? See Question&Answers more detail:os...

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How can I discover zeroconf (Bonjour) services on Android? I'm having trouble with jmDNS

I'm working with a Droid / Android 2.0.1 and encountering an issue apparently many people have: I'm ... related to the IPv6 multicast problem? See Question&Answers more detail:os...

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java - How to Schedule Notification in Android

I'm trying to set notification for a time in the future. I have the code for creating a notification but ... How can I schedule notifications? See Question&Answers more detail:os...

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Why does git stash pop say that it could not restore untracked files from stash entry?

I had a bunch of staged and unstaged changes and I wanted to quickly switch to another branch and then switch back. ... do I avoid it next time? See Question&Answers more detail:os...

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c - Using printf with a non-null terminated string

Suppose you have a string which is NOT null terminated and you know its exact size, so how can you print that ... can not find out now... See Question&Answers more detail:os...

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python - How to understand the term `tensor` in TensorFlow?

I am new to TensorFlow. While I am reading the existing documentation, I found the term tensor really confusing. ... they all types of tensors? See Question&Answers more detail:os...

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css - React native text going off my screen, refusing to wrap. What to do?

The following code can be found in this live example I've got the following react native element: 'use strict ... like this: Thank you! See Question&Answers more detail:os...

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http - Is REST DELETE really idempotent?

DELETE is supposed to be idempotent. If I DELETE http://example.com/account/123 it's going to delete the ... an account that has never existed? See Question&Answers more detail:os...

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android - GridLayoutManager - how to auto fit columns?

I have a RecyclerView with a GridLayoutManager that displays Card Views. I want the cards to rearrange according ... ; // itemHolder.value.Click += clickUpdateViewEvent; itemHo...

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authentication - Firebase confirmation email not being sent

I've set up Firebase email/password authentication successfully, but for security reasons I want the user to confirm her/ ... how I can do it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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