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What is the relationship between Looper, Handler and MessageQueue in Android?
...nd associated thread and message queue).
In typical usage, you create and start a HandlerThread, then create a Handler object (or objects) by which other threads can interact with the HandlerThread instance. The Handler must be created while running on the HandlerThread, although once created there...
Backup/Restore a dockerized PostgreSQL database
...tainer_name: Backup
image: prodrigestivill/postgres-backup-local
restart: always
volumes:
- ./backup:/backups
links:
- db:db
depends_on:
- db
environment:
- POSTGRES_HOST=db
- POSTGRES_DB=${DB_NAME}
- POSTGRES_USER=${DB_USER}
- POSTG...
Why would a JavaScript variable start with a dollar sign? [duplicate]
I quite often see JavaScript with variables that start with a dollar sign. When/why would you choose to prefix a variable in this way?
...
Insert a string at a specific index
...adding new characters.
*
* @this {String}
* @param {number} start Index at which to start changing the string.
* @param {number} delCount An integer indicating the number of old chars to remove.
* @param {string} newSubStr The String that is spliced in.
* @return {strin...
ANTLR: Is there a simple example?
I'd like to get started with ANTLR, but after spending a few hours reviewing the examples at the antlr.org site, I still can't get a clear understanding of the grammar to Java process.
...
Xcode “The private key for is not installed on this mac - distributing”
...
This solved it for me without starting all the way from scratch:
1. Open Keychain Access on the machine that was used to generate the private keys
2. Select Keychains->Login and Category->Certificates on the left hand side
3. Locate the two certifi...
How are Python's Built In Dictionaries Implemented?
... ... |
-+-----------------+
When a new dict is initialized it starts with 8 slots. (see dictobject.h:49)
When adding entries to the table, we start with some slot, i, that is based on the hash of the key. CPython initially uses i = hash(key) & mask (where mask = PyDictMINSIZE - 1, ...
Intel HAXM installation error - This computer does not support Intel Virtualization Technology (VT-x
...indow opens.
Uncheck Hyper-V and Windows Hypervisor Platform options and restart your system.
Now, you can Start HAXM installation without any error.
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“ClickOnce does not support the request execution level 'requireAdministrator.'”
...f the above answers worked for me.
I ended up adding a method to the very start of my application that checks if it's being run as an administrator and if it isn't, relaunch itself as an admin. To do this, you need the following references added.
using System;
using System.Diagnostics;
using Syste...
Comments in Android Layout xml
...mment code will be created with your cursor in the middle, so you can just start typing.
– LeBeau
Mar 30 '14 at 6:21
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