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Copying data from one SQLite database to another
...o attach Database X with Database Y using the ATTACH command, then run the appropriate Insert Into commands for the tables you want to transfer.
INSERT INTO X.TABLE SELECT * FROM Y.TABLE;
Or, if the columns are not matched up in order:
INSERT INTO X.TABLE(fieldname1, fieldname2) SELECT fieldname...
How to handle back button in activity
... (back) button e.g. " <- " this is what works for me. (*Note I have an app bar / toolbar in the activity)
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
//finish();
onBackPressed();
...
Get Base64 encode file-data from Input Form
...y. Try this if you want to double check before pushing:
window.open("data:application/octet-stream;base64," + base64);
This will download it as a file.
Other info:
To get the data as a Uint8Array, look at the MDN docs:
https://developer.mozilla.org/en/DOM/FileReader
...
Why use HttpClient for Synchronous Connection
...s and blocking the thread in which you called this .Result (which usually happens to be the main UI thread).
– Darin Dimitrov
Feb 27 '14 at 21:55
35
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What's the state of the art in email validation for Rails?
...ation is also low. Validate generously, and worry about errors when they happen.
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Convert a string to an enum in C#
...xtension method like this to string as (without namespace control) it will appear on all instances of string whether they hold an enum or not (so 1234.ToString().ToEnum(StatusEnum.None) would be valid but nonsensical) . It's often be best to avoid cluttering Microsoft's core classes with extra metho...
How to copy text from Emacs to another application on Linux
...own window on X, in KDE, on Kubuntu), I can't paste (yank) it in any other application.
13 Answers
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How to detect online/offline event cross-browser?
...cable.
Mozilla Firefox (before version 41), Opera, and IE take a different approach, and consider you "online" unless you explicitly pick "Offline Mode" in the browser - even if you don't have a working network connection.
There are valid arguments for the Firefox/Mozilla behavior, which are outline...
Add a dependency in Maven
...this to successfully add dependencies for my maven projects on both Google App Engine and Heroku.
– Leo C Han
Jan 6 '15 at 18:53
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Switching between Android Navigation Drawer image and Up caret when using fragments
... but only handle the up caret for the onOptionsItemSelected.
In one of my apps I also needed to handle the behavior of the up caret when the back button was pressed. This can be handle by overriding onBackPressed.
@Override
public void onBackPressed() {
// Use getSupportFragmentManager() to su...