Apps Print method to TextView

[Harks44]

Hello Friends!

I am new to Android and I'm having problems. I have written a 15-game in java-code and now I'm about to implement it to an Android application.

I have written a method for printing out the state of the board to console in java with this:

public static void printBoard(Board board) {
for (int row = 0; row < 4; row++) {
for (int col = 0; col < 4; col++) {
if (board.getTile(row, col).getValue() == 0)
System.out.print(" ");
else
System.out.printf("%-3d",board.getTile(row,col)
.getValue());
}

System.out.println();
}

Now I have done the layout for the game and want to somehow write this method into a TextView. Problem is the System.out-print doens't work with android and the question is:

How can I write it into the TextView i've created? (deleting sys.out.print)

 

[jae_63]

Wrong forum, but it seems that you can build up your string via concatenation and the use TextView's setText Method.

 

[wubbzy]

Here is a hello world app which demo how to use textview

Hello, World | Android Developers

 

[Harks44]

Okay sry, didn't see the development forum

TextView tv = new TextView(this);
tv.setText("Hello, Android");
setContentView(tv);

this is quite helpful ... could I call my method in setText parameters? or is it impossible? Quite new to Java too so any type of code-example would be nice.

TextView tv = new TextView(this);
tv.setText(printBoard);
setContentView(tv);

printboard-method
if (board.getTile(row, col).getValue() == 0){
tv.setText(" ");
else
tv.setText( board.getTile(row, col).getValue());

Doesn't have my projekt available at the moment so couldn't test it out.

What I see in View.setText though is just setting from resid and from an array (and charsequence(?)). Can't get my head around it.


public final void setText (int resid, TextView.BufferType type)

Since: API Level 1
public final void setText (CharSequence text)

Since: API Level 1
Sets the string value of the TextView. TextView does not accept HTML-like formatting, which you can do with text strings in XML resource files. To style your strings, attach android.text.style.* objects to a SpannableString, or see the Available Resource Types documentation for an example of setting formatted text in the XML resource file.
Related XML Attributes

android:text
public void setText (CharSequence text, TextView.BufferType type)

Since: API Level 1
Sets the text that this TextView is to display (see setText(CharSequence)) and also sets whether it is stored in a styleable/spannable buffer and whether it is editable.
Related XML Attributes

android:text
android:bufferType

 

[jonbonazza]

You could do something like this:

public static void printBoard(Board board, TextView tv) {
     for (int row = 0; row < 4; row++) {
         for (int col = 0; col < 4; col++) {
            if (board.getTile(row, col).getValue() == 0) 
                  tv.setText(" ");
            else
                  tv.setText(Double.parseDouble(board.getTile(row,col).getValue())); 
         }
    }
}