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How to handle back button in activity
How to handle a back button in an activity? I have some buttons. If I click one of the button it's redirecting to the buttons which I required. It's working fine but When I press back button it gets finished.
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“Insert if not exists” statement in SQLite
... to insert values ( users_id , lessoninfo_id ) in table bookmarks , only if both do not exist before in a row.
4 Answers
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Differences between Line and Branch coverage
... code, not including comments, conditionals, etc). Branch coverages checks if you took the true and false branch for each conditional (if, while, for). You'll have twice as many branches as conditionals.
Why do you care? Consider the example:
public int getNameLength(boolean isCoolUser) {
User...
How to copy text programmatically in my Android app?
...ied", Toast.LENGTH_LONG).show();
– Shady Mohamed Sherif
Jan 11 '17 at 13:01
1
@AlaaM. I think thi...
Switching between Android Navigation Drawer image and Up caret when using fragments
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It's easy as 1-2-3.
If you want to achieve:
1) Drawer Indicator - when no fragments are in the Back Stack or the Drawer is opened
2) Arrow - when some Fragments are in the Back Stack
private FragmentManager.OnBackStackChangedListener
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Accessing last x characters of a string in Bash
...ands to up to length characters of parameter starting at the character
specified by offset. If length is omitted, expands to the substring of parameter
starting at the character specified by offset. length and offset are arithmetic
expressions (see Shell Arithmetic). This is referred to as Substring...
Why does integer division in C# return an integer and not a float?
...division, in actual practice integer division is a very common operation. If you are assuming that people rarely use it, and that every time you do division you'll always need to remember to cast to floating points, you are mistaken.
First off, integer division is quite a bit faster, so if you onl...
iOS difference between isKindOfClass and isMemberOfClass
What is the difference between the isKindOfClass:(Class)aClass and the isMemberOfClass:(Class)aClass functions?
I know it is something small like, one is global while the other is an exact class match but I need someone to specify which is which please.
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Should enums in C# have their own file? [closed]
... Usually there's one class that's most closely associated. But if that changes, if someone comes along at a time decides to take a dependency on the enum, then it's time for a refactor.
– Brennan Pope
Sep 18 '15 at 16:06
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How do I drag and drop files into an application?
...);
}
void Form1_DragEnter(object sender, DragEventArgs e) {
if (e.Data.GetDataPresent(DataFormats.FileDrop)) e.Effect = DragDropEffects.Copy;
}
void Form1_DragDrop(object sender, DragEventArgs e) {
string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
f...