Posts by Daniel Gentil • 1,484 points
24 posts
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8
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answer891
viewsA: What is a Triple-A or AAA level site? What do I need for my site to be considered a AAA in accessibility?
TL. DR. What are Levels A, AA and AAA? What types of disabilities do part of each group? What are the criteria for each of these levels? What my site needs to meet to be at least a Level A of…
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answer217
viewsQ: What is the DIANA?
I had a database problem related to the size of an object, which returned the following error: pls-00123 program too big (Dian nodes) The problem I understood and I know what can be done, but I…
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answer4187
viewsQ: When to use the OVER clause?
To Documentation says : Determines partitioning and sorting of the row set before application of the associated window function. An example I created just to demonstrate this: select ROW_NUMBER()…
sqlasked Daniel Gentil 1,484 -
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answers7922
viewsQ: What is and what is the utility of the DUAL table for Oracle?
I came across this scenario during the modification of a report in the system: One of querys is returning to this such table DUAL: select * from dual But in the system there is no DUAL table, and…
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answers8920
viewsA: What is the difference between Visualg and Portugol?
First let’s get the definitions of both. Definition of Portugol: Portugol is a pseudo-language algorithmic widely used in description of algorithms, which stands out for the use of commands in…
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answers131
viewsQ: What is Hungarian Notation?
I was reading an article about development and the same was talking about this notation. I would like to know the definition and whether it is important to use it in the development of programmes.…
terminologyasked Daniel Gentil 1,484 -
5
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answer1654
viewsA: What is a cellular automaton?
What the cellular automaton is about? The first definition of Automato Celular Came up with Von Neumman in the '40s intended to provide information on the logical requirements of a Machine…
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answer2013
viewsQ: How to use runOnUiThread()
I’m studying the use of Threads, aSynkTasks and Handlers and came across this method, runOnUiThread() How does this method become a repetitive process to the point of replacing Handler? How this…
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answers523
viewsA: What is an extensible language?
I think one cool way to explain it is xml - Extensible Markup Language - or Extensive markup language. XML language is classified as extensible because it allows defining the marking elements. or…
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answer2048
viewsQ: What is the difference between replace() and replaceAll()?
I was reading the documentation to properly develop a mask and save without it. However I came across this doubt of methods replace and replaceAll for my string. What is the difference between the…
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answer419
viewsQ: Data persistence levels in android applications
I’m studying persistence for android, however I’m having difficulty understanding the levels of persistence they make in applications. I saw that there are 5 types: onSavedIntanceState…
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answer37
viewsQ: Is it possible to create a Page View from null?
I am implementing a book style reading method and would like to put just a background image and at the time I give the Scroll side came the value on the other side, exactly like a newly opened book.…
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answers1481
viewsA: Change the Navigationdrawer menu color?
android:background="#000" --> cor de fundo android:layout_height="match_parent" android:layout_width="match_parent" app:headerLayout="@layout/header" app:itemTextColor="your color" --> cor dos…
androidanswered Daniel Gentil 1,484 -
12
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answer5620
viewsA: What is the difference between inner class, nested class and anonymous class?
According to J Steven Perry of Makoto Consulting Group Nested class are all classes that are within another class. Example: public class calculadora { public class soma{/* código */ } } This type of…
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answer85
viewsA: Accessing another APP within mine with Oauth 2.0
The android offers a mini tutorial on how Voce can accomplish this in development page theirs Although the Android platform ensures that certain intents are solved with one of the built-in apps…
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answers1068
viewsA: Is there a reason for separating the java and javax packages?
Following the Reasoning line of Stack Ingles available here: javax vs java package Historically speaking: Originally Java Extensions in a pre-existing JRE were placed as javax, ie originally the…
javaanswered Daniel Gentil 1,484 -
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answer91
viewsQ: When to use encryption when developing for mobile?
I am studying and assembling projects for mobile devices, and I always come across dozens of data transmissions, some important others not 1)I wonder if it is convenient to encrypt all the data…
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answers2918
viewsA: Is negative margin a bad practice?
Margin negative is not necessarily a bad practice, for example you can use the technique of faux-Columns imageless. Negative values for margin properties are allowed, but there may be…
cssanswered Daniel Gentil 1,484 -
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answers534
viewsA: Guidance from Recyclerview
Right understood now, Voce wants to show the values of the end there is a method called smoothScrollToPosition wears like this lista.smoothScrollToPosition(int position) it will start from the…
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answer580
viewsQ: Recyclerview onClickListener for Activity dialog
I have a Recycler view, and would like to pass the parameters I receive from it to a dialog in Activity edit the values and save again in the bank I have a recorded abstract method public interface…
androidasked Daniel Gentil 1,484 -
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answer105
viewsQ: Error in the webservice calculator implementation
I’m mounting a calculator equal to Ricardo Lecheta’s book for understanding of webservice, but I’m 2 mistakes caused by a bad conversion of DataInputStream values that should be received, with the…
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answer415
viewsA: Couldn’t read Row 0, col 0 from Cursorwindow. Make sure the Cursor is initialized correctly before accessing data from it
the error says make sure that your cursor class is properly initialized before accessing the data... probably Voce is trying to initialize the direct row/column of the cursor, only the cursor has no…
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answer134
viewsA: Entering data into the database through a Dialog
Answering the question I created. I set values outside and let only load the layout in the dialog public void ExibeDialog(){ final Dialog dialog = new Dialog(this);…
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answer134
viewsQ: Entering data into the database through a Dialog
I am creating a project that needs to create users, I have a ready method working but I am trying to put a way to display in a dialog. I created a screen with a Recycler view to display the list of…