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Get users by name property using Firebase
... if you want to retrieve the data then do the following:
Using Firebase in Android App:
DatabaseReference ref=FirebaseDatabase.getInstance().getReference().child("users");
ref.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataCha...
A Java collection of value pairs? (tuples?)
...ese classes also allow null keys and null values, and are serializable.
Android
If you're writing for Android, just use Pair.create(key, value) to create an immutable pair.
Apache Commons
Apache Commons Lang provides the helpful Pair.of(key, value) to create an immutable, comparable, seriali...
C++11 std::threads vs posix threads
...) on every platform, even if C++11 seems available. For instance in native Android std::thread or Win64 it just does not work or has severe performance bottlenecks (as of 2012).
A good replacement is boost::thread - it is very similar to std::thread (actually it is from the same author) and works r...
Creating a BLOB from a Base64 string in JavaScript
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Works great on Android with Ionic 1 / Angular 1. Slice is required otherwise I run into OOM (Android 6.0.1).
– Jürgen 'Kashban' Wahlmann
Mar 3 '17 at 13:16
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keytool error Keystore was tampered with, or password was incorrect
... my mac . (paste the below line in terminal)
keytool -list -v -keystore ~/.android/debug.keystore
when it prompt for
Enter keystore password:
just press enter button (Dont type anything).It should work .
Please make sure its for default debug.keystore file , not for your project based keystore ...
Is there a performance difference between a for loop and a for-each loop?
... penalty of allocating the iterator. I had some highly parallel code in an Android live wallpaper. I saw that the garbage collector was going crazy. It was because for-each loops were allocating temporary iterators in many different (short-lived) threads, cause the garbage collector a lot of work. S...
Using :before CSS pseudo element to add image to modal
... answered Jul 25 '11 at 9:51
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How to create a self-signed certificate with OpenSSL
...elf-signed server certificate. In fact, you can't with some browsers, like Android's browser. So the complete solution is to become your own authority.
In the absence of becoming your own authority, you have to get the DNS names right to give the certificate the greatest chance of success. But I wo...
Notification click: activity already open
...dy at the top of the task's stack.
This is done in the manifest by adding android:launchMode="singleTop" to the <activity> element. To access the latest Intent (if you are interested in any data that may have passed in with it), override onNewIntent() in your Activity.
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Why is the JVM stack-based and the Dalvik VM register-based?
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Also, I've read that some people are installing Android on their laptops since it's a "light-weight" os... That seems like a bad idea if the laptop is not ARM, and perhaps has an architecture with many registers?
– aioobe
Apr 27 '10 a...