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Programmatically go back to the previous fragment in the backstack
...entManager fm = getFragmentManager();
if (fm.getBackStackEntryCount() > 0) {
Log.i("MainActivity", "popping backstack");
fm.popBackStack();
} else {
Log.i("MainActivity", "nothing on backstack, calling super");
super.onBackPressed();
}
}
...
Unrecognized SSL message, plaintext connection? Exception
...roject properties.
You can find it in the following:
Project Properties -> (from left panle )Run/Debug/Profile ->Click (edit) form the right panel -> Tool Setting from the left panel -> uncheck (Use Proxy) option.
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How to remove single character from a String
...racters of a String in Java, we have String.charAt(2) . Is there any inbuilt function to remove an individual character of a String in java?
...
iOS Detection of Screenshot?
...res how to do in Swift with closures:
func detectScreenShot(action: () -> ()) {
let mainQueue = NSOperationQueue.mainQueue()
NSNotificationCenter.defaultCenter().addObserverForName(UIApplicationUserDidTakeScreenshotNotification, object: nil, queue: mainQueue) { notification in
/...
How can I toggle word wrap in Visual Studio?
...
I have no Edit->Advanced... is Visual Studio Community hobbled in this way?
– livingtech
May 31 '18 at 13:34
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How to fix “Incorrect string value” errors?
...
"\xE4\xC5\xCC\xC9\xD3\xD8" isn't valid UTF-8. Tested using Python:
>>> "\xE4\xC5\xCC\xC9\xD3\xD8".decode("utf-8")
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UnicodeDecodeError: 'utf8' codec can't decode bytes in position 0-2: invalid data
If you're looking for a way to avoid decoding errors within the database, the cp12...
How to repeat last command in python interpreter shell?
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In IDLE, go to Options -> Configure IDLE -> Keys and there select history-next and then history-previous to change the keys.
Then click on Get New Keys for Selection and you are ready to choose whatever key combination you want.
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Mysql command not found in OS X 10.7
...P.
Start MAMP or MAMP PRO
Start the server
Open Terminal (Applications -> Utilities)
Type in: (one line)
/Applications/MAMP/Library/bin/mysql --host=localhost -uroot -proot
This works for me.
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Visual studio compiles fine but still shows red lines
...nd I resolved some conflicts in a few different projects. I did a Build -> Clean Solution followed by a Build -> Rebuild Solution and everything was good again.
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How can I check whether an array is null / empty?
...0];
if (arr.length == 0) {
System.out.println("array is empty");
}
An alternative definition of "empty" is if all the elements are null:
Object arr[] = new Object[10];
boolean empty = true;
for (int i=0; i<arr.length; i++) {
if (arr[i] != null) {
empty = false;
break;
}
}
or
O...