Kako dodati prazna mjesta u string koji se prikazuje u textbox?
Dobar dan,
Imam jedan problem , kako prikazati Array u TextBox-u s praznim poljima ( tj. razmacima između brojeva)?
Program generira random 6 brojeva od 1-49 i ispisuje ih u textbox pomoću tipke generate, sve radi ok al problem je što ne mogu razdvojiti brojeve u textboxu.
Evo primjer koda:
class MainActivity extends AppCompatActivity {
private TextView txtView;
private Button btnBingo;
public void checkBingo (){
int []randomNumArray= new int [6];
randomNumArray [0] = randomNumber();
String numberString= "";
System.out.println(randomNumArray[0]);
numberString+= randomNumArray[0];
txtView.setText(numberString);
for (int i = 1; i<6; i++){
int candidate;
boolean foundMatch;
do {
candidate = randomNumber();
foundMatch = false;
for (int j=0; j<1; j++)
if (candidate == randomNumArray[j])
foundMatch =true;
}while (foundMatch);
randomNumArray = candidate;
System.out.println(randomNumArray);
numberString +=randomNumArray;
txtView.setText(numberString);
}
}
public static int randomNumber () {
return ( 1 + (int) (Math.random()*49));
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txtView = (TextView)findViewById(R.id.txtView);
btnBingo = (Button) findViewById(R.id.btnBingo);
btnBingo.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
checkBingo();
}
});
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
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