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How to open a second activity on click of button in android app
...os.class);
startActivity(i);
Both Activity must be included in manifest file otherwise it will not found the class file and throw Force close.
Edit your Mainactivity.java
crate button's object;
now Write code for click event.
Button btn = (button)findViewById(R.id.button1);
...
Using SSH keys inside docker container
...sa)" --build-arg ssh_pub_key="$(cat ~/.ssh/id_rsa.pub)" --squash .
Dockerfile
FROM python:3.6-slim
ARG ssh_prv_key
ARG ssh_pub_key
RUN apt-get update && \
apt-get install -y \
git \
openssh-server \
libmysqlclient-dev
# Authorize SSH Host
RUN mkdir -p /root/...
How to use shared memory with Linux in C
...izable parameters to control access and permissions, and to back them with file-system storage if necessary.
The following function creates an in-memory buffer that a process can share with its children:
#include <stdio.h>
#include <stdlib.h>
#include <sys/mman.h>
void* create_s...
Generate Java classes from .XSD files…?
I have a gigantic QuickBooks SDK .XSD schema file which defines XML requests/responses that I can send/receive from QuickBooks.
...
Returning a file to View/Download in ASP.NET MVC
I'm encountering a problem sending files stored in a database back to the user in ASP.NET MVC. What I want is a view listing two links, one to view the file and let the mimetype sent to the browser determine how it should be handled, and the other to force a download.
...
javax.xml.bind.UnmarshalException: unexpected element (uri:“”, local:“Group”)
...ts me each time. If you are using the Eclipse Jaxb generator it creates a file called package-info.
@javax.xml.bind.annotation.XmlSchema(namespace = "blah.xxx.com/em/feed/v2/CommonFeed")
package xxx.blah.mh.domain.pl3xx.startstop;
If you delete this file it will allow a more generic xml to be p...
How do I remove the passphrase for the SSH key without having to create a new key?
...Short answer:
$ ssh-keygen -p
This will then prompt you to enter the keyfile location, the old passphrase, and the new passphrase (which can be left blank to have no passphrase).
If you would like to do it all on one line without prompts do:
$ ssh-keygen -p [-P old_passphrase] [-N new_passphr...
How to set the text color of TextView in code?
...gb(0,200,0,0));
And of course, if you want to define your color in an XML file, you can do this:
<color name="errorColor">#f00</color>
because the getColor() function is deprecated1, you need to use it like so:
ContextCompat.getColor(context, R.color.your_color);
You can also inser...
How to find a deleted file in the project commit history?
Once upon a time, there was a file in my project that I would now like to be able to get.
9 Answers
...
HTML File Selection Event
... yes in script tags, or you could add it as an attribute (<input type="file" onchange="..." />) although this is not recommended.
– Anurag
Aug 20 '10 at 5:52
...