numeric editText and EditText with max number of characters... yes, again !

Sometimes, being a lone developer is a very depressing status.
You want a feature, you fight with the system, the tools, the documentations ( no comment ), the forums, ...
And you found a solution. So you're happy with all your code that do what you wanted.
Until you finally find you could achieve the same thing with only one line of code !

This is exactly what happened to me !
I found that a numeric editText ( or a textView) is done with this XML tag :

android:numeric="decimal"

Then I found that limiting the number of character is also very simple :

android:maxLength="10"

and that's all !


Why didn't I find that in the first time ( and spend so many time on my own solution ? ).
Because, I was looking at a way to do this by code.
And it is less obvious in code.
For the limited number of character, you can add a Android API filter :

InputFilter[] FilterArray = new InputFilter[1];
FilterArray[0] = new InputFilter.LengthFilter(8);
editEntryView.setFilters(FilterArray);

For the numeric editText, there is also a obscur solution :

DigitsKeyListener MyDigitKeyListener =
new DigitsKeyListener(true, true); // first true : is signed, second one : is decimal
editEntryView.setKeyListener( MyDigitKeyListener );

So all my work was useless ?
Possibly ( the politically correct answer is : oh no, I learned so many things in the process ), there is still a feature I have with my solution that is not 'that simple' with those solution, but I think I can do it also with implementing my own filter.
Now should I do it ? Filters look like they are no user friendly beasts, and my solution is already up and working !