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Android

Sean Walker
Sean Walker
1,792 Points
Posted by Sean Walker
Sean Walker
1,792 Points

Button does Nothing!!!!

hey everyone,hope ya'll doing good....heeeeeeeeeeeeelp! i got huge problem with this button and i'm so confused .... pls help!

public class MainActivity extends AppCompatActivity {

private Button mfactButton;
private TextView mfactTextView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mfactButton = (Button) findViewById(R.id.button);
    mfactTextView = (TextView) findViewById(R.id.textView2);

    String [] facts = {};

    String fact = "";

    Random randomGenerator = new Random();
    int randomNumber = randomGenerator.nextInt(facts.length);

    fact = facts[randomNumber] + "";

    mfactTextView.setText(fact);

    View.OnClickListener Listener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {

        }
    };
    mfactButton.setOnClickListener(Listener);
Stephen Wall
Stephen Wall
Courses Plus Student 27,294 Points
Stephen Wall
Stephen Wall
Courses Plus Student 27,294 Points

Hey, Whatever you would like your button to do needs to go inside the onClick method inside of your OnClickListener. OnClickListeners handle click events, and can be applied to many different UI objects. 

View.OnClickListener Listener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
             // Put Whatever you want your button to do in here, 
             // if this is empty the button won't do anything. 
        }
    };

1 Answer

Sean Walker
Sean Walker
1,792 Points
Sean Walker
Sean Walker
1,792 Points

public class FactFun extends AppCompatActivity {

private Button mButton;
private TextView mTextView;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_fact_fun);

    mTextView = (TextView) findViewById(R.id.textView2);
    mButton = (Button) findViewById(R.id.button);


    View.OnClickListener Listener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            String[] facts = { "facts are crazy,i just care about codes!",
                               "i'm not myself",
                                "my coffee tests like shit!",
                                  "oh god,wtf am i doing?!",
                                    "may God keep my code bugless!",
                                     "the code is the life when you fall in love with it!"};

            String fact = "";


            Random randomGenerator = new Random();
            int randomNumber = randomGenerator.nextInt(facts.length);
            fact = facts[randomNumber] + "";

        }
    };
    mButton.setOnClickListener(Listener);

this is my code now , pls tell me why my button clicls, don't change the contect of the textview2....i'm stucked !!! help!

Sean Walker
Sean Walker
1,792 Points
Sean Walker
Sean Walker
1,792 Points

omg , i've just forgot the mTextView.setText(fact);

:]