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Android list view inside a scroll view
... android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:text="Below is a Recycler View as an example."
android:textSize="16sp" />
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recycler_view"
...
Overload with different return type in Java?
... sufficient for the compiler to figure out which function to call:
public int foo() {...}
public float foo() {..}
...
foo(); // which one?
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ViewPager.setOffscreenPageLimit(0) doesn't work as expected
The fragments I use in my ViewPager instance are quite resource intensive, so I'd only like to load one at a time. When I try the following:
...
How do I insert NULL values using PDO?
...d this in a comment on the php docs:
bindValue(':param', null, PDO::PARAM_INT);
EDIT: P.S. You may be tempted to do this bindValue(':param', null, PDO::PARAM_NULL); but it did not work for everybody (thank you Will Shaver for reporting.)
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How to calculate md5 hash of a file using javascript
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CryptoJS now supports converting from an ArrayBuffer to Binary/WordArray via: CryptoJS.lib.WordArray.create(arrayBuffer);
– Warren Parad
Jan 8 '18 at 20:43
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Why does ~True result in -2?
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int(True) is 1.
1 is:
00000001
and ~1 is:
11111110
Which is -2 in Two's complement1
1 Flip all the bits, add 1 to the resulting number and interpret the result as a binary representation of the magnitude and add a neg...
Write a function that returns the longest palindrome in a given string
... public static String getLongestPalindrome(final String input) {
int rightIndex = 0, leftIndex = 0;
String currentPalindrome = "", longestPalindrome = "";
for (int centerIndex = 1; centerIndex < input.length() - 1; centerIndex++) {
leftIndex = centerIndex - 1...
Unit testing of private methods [duplicate]
...ods are complex enough to warrant testing in isolation, then refactor them into their own class(es) and test via their public interface(s). Then use them privately in the original class.
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What is a stored procedure?
... benefit of stored procedures is that you can centralize data access logic into a single place that is then easy for DBA's to optimize. Stored procedures also have a security benefit in that you can grant execute rights to a stored procedure but the user will not need to have read/write permissions ...
How to prevent a dialog from closing when a button is clicked
...tring.cancel, null)
.create();
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialogInterface) {
Button button = ((AlertDialog) dialog).getButton(AlertDialog.BUTTON_POSITIVE);
button.setOnClickListener(n...