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switch case statement error: case expressions must be constant expression
...;
In other words, the constants are not final in a library project.
Therefore your code would no longer compile.
The solution for this is simple: Convert the switch statement into an if-else statement.
public void onClick(View src)
{
int id = src.getId();
if (id == R.id.playbtn){
...
How to remove item from list in C#?
... use.
RemoveAt(int index) can be used if you know the index of the item. For example:
resultlist.RemoveAt(1);
Or you can use Remove(T item):
var itemToRemove = resultlist.Single(r => r.Id == 2);
resultList.Remove(itemToRemove);
When you are not sure the item really exists you can use Sing...
How to get share counts using graph API
...acebook:
https://api.facebook.com/method/links.getStats?urls=%%URL%%&format=json
Reddit:http://buttons.reddit.com/button_info.json?url=%%URL%%
LinkedIn: http://www.linkedin.com/countserv/count/share?url=%%URL%%&format=json Digg:
http://widgets.digg.com/buttons/count?url=%%URL%% Delic...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
... = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })();
使用App Inventor扩展实现多点触控：Rotation Detector
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Using App Inventor extensions to imp...
How to easily initialize a list of Tuples?
I love tuples . They allow you to quickly group relevant information together without having to write a struct or class for it. This is very useful while refactoring very localized code.
...
Using the HTML5 “required” attribute for a group of checkboxes?
When using the newer browsers that support HTML5 (FireFox 4 for example);
and a form field has the attribute required='required' ;
and the form field is empty/blank;
and the submit button is clicked;
the browsers detects that the "required" field is empty and does not submit the form; ins...
Converting JSONarray to ArrayList
...
JSONArray jArray = (JSONArray)jsonObject;
if (jArray != null) {
for (int i=0;i<jArray.length();i++){
listdata.add(jArray.getString(i));
}
}
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...
How can I know if a process is running?
...);
else
MessageBox.Show("run");
You can loop all process to get the ID for later manipulation:
Process[] processlist = Process.GetProcesses();
foreach(Process theprocess in processlist){
Console.WriteLine("Process: {0} ID: {1}", theprocess.ProcessName, theprocess.Id);
}
...
SQL Call Stored Procedure for each Row without using a cursor
How can one call a stored procedure for each row in a table, where the columns of a row are input parameters to the sp without using a Cursor?
...
How to declare a variable in a PostgreSQL query
How do I declare a variable for use in a PostgreSQL 8.3 query?
12 Answers
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