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Set margins in a LinearLayout programmatically
...ayout(this);
ll.setOrientation(LinearLayout.VERTICAL);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.setMargins(30, 20, 30, 0);
Button okButton=new Button(this);
okButton.s...
What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
All the examples of strong parameters in Rails 4 docs use
2 Answers
2
...
Get URL query string parameters
What is the "less code needed" way to get parameters from a URL query string which is formatted like the following?
11 Answ...
Is there a way to instantiate objects from a string holding their class name?
...tory class.
//Each class generated will have a suffix of the number of parameters taken by the derived type constructors.
#define BOOST_PP_FILENAME_1 "GenericFactory.hpp"
#define BOOST_PP_ITERATION_LIMITS (0,GENERIC_FACTORY_MAX_ARITY)
#include BOOST_PP_ITERATE()
#define GENERIC_...
Handling specific errors in JavaScript (think exceptions)
...or
*/
class InputError extends Error {
/**
* Create InputError
* @param {String} message
*/
constructor(message) {
super(message);
this.name = this.constructor.name;
Error.captureStackTrace(this, this.constructor);
}
}
/**
* Custom AuthError
*/
class AuthError extends ...
How to TryParse for Enum value?
...any first or second chance exception.
/// </summary>
/// <param name="type">The enum target type. May not be null.</param>
/// <param name="input">The input text. May be null.</param>
/// <param name="value">When this method returns, contains Enum ...
Get keys from HashMap in Java
... contain null)
Using JDK8+
/**
* Find any key matching a value.
*
* @param value The value to be matched. Can be null.
* @return Any key matching the value in the team.
*/
private Optional<String> getKey(Integer value){
return team1
.entrySet()
.stream()
.fi...
Pros and Cons of Interface constants [closed]
...* int */ readSomething();
function /* void */ ExecuteSomething(/* int */ param);
}
class CBar implements IFoo
{
function /* int */ readSomething() { ...}
function /* void */ ExecuteSomething(/* int */ param) { ... }
}
or, if you want to use a class as a namespace:
class TypeHTTP_Enums
{
...
Execute the setInterval function without delay the first time
...isting code when the specs change. In fact, setInterval currently has more parameters: developer.mozilla.org/en-US/docs/Web/API/WindowTimers/…
– Áxel Costas Pena
Jun 7 '16 at 12:49
...
ATL CComPtr和CComQIPtr详解 - C/C++ - 清泛网 - 专注IT技能提升
...调用没有参数的方法。
HRESULT Invoke1(DISPID dispid,VARIANT * param1, VARIANT * pvarRet=NULL); 通过DISPID调用 有一个参数的方法。
HRESULT Invoke1(LPCLOESTR lpszName ,VARIANT * param1, VARIANT * pvarRet=NULL); 通过方法名称，调用有一个参数的方法。
HRESULT ...