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How do I discover memory usage of my application in Android?
...le which has some discussion of how memory is managed on Android:
Service API changes starting with Android 2.0
Now ActivityManager.getMemoryInfo() is our highest-level API for looking at overall memory usage. This is mostly there to help an application gauge how close the system is coming to hav...
How to check edittext's text is email address or not?
...checks that field contains a valid domain name ( always passes the test in API Level < 8 )
ipAddress: checks that the field contains a valid ip address
webUrl: checks that the field contains a valid url ( always passes the test in API Level < 8 )
nocheck: It does not check anything. (Default)
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Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari
...es, each one with its own application :
- Basic “Hello World”
- REST API
- JSON Serialization/Deserialization
- Photo Loading
- SQL Database Insert and Get All
Each test is repeted several times, the graphs show the average results.
Hello World
Rest API
Set of tests aimed at measuri...
How can I assign an ID to a view programmatically?
...ew.
Query these child views using placeholder.findViewById(convenientInt);
API 17 introduced View.generateViewId() which allows you to generate a unique ID.
If you choose to keep references to your views around, be sure to instantiate them with getApplicationContext() and be sure to set each refe...
Unique Key constraints for multiple columns in Entity Framework
...rrect for data annotations :), if you want the answer for using the fluent API see Niaher's answer below stackoverflow.com/a/25779348/2362036
– tekiegirl
Oct 29 '14 at 13:37
8
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Sending Email in Android using JavaMail API without using the default/built-in app
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Send e-mail in Android using the JavaMail API using Gmail authentication.
Steps to create a sample Project:
MailSenderActivity.java:
public class MailSenderActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
su...
Java FileReader encoding issue
...tly. Unfortunately, FileReader does not allow this (major oversight in the API). Instead, you have to use new InputStreamReader(new FileInputStream(filePath), encoding) and ideally get the encoding from metadata about the file.
...
Getting an empty JQuery object
...of jQuery, this would return a set containing the document node.
Source: api.jquery.com
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Android Webview - Completely Clear the Cache
...ioned methods was remove the local files, but it never clean the RAM.
The API clearCache, frees up the RAM used by the webview and hence mandates that the webpage be loaded again.
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How to scale threads according to CPU cores?
...
Look at the example here: java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/… It will tell you a more streamlined way to create and manage the thread pool... It may seem more complicated at first, but as with most things, it's more complicated because if it was simpler yo...