CODEWITHSUNDEEP
androidandroid-intenttextviewandroid-activityonresume
Mach Mitch
Mach Mitch

Reputation: 323

Update a TextView on resuming main activity

Friends in this code provided below, i want to refresh my text view upon resume from play intent. But whenever i try to define my textview out of OnCreate but inside my main class (after static int score), my app crashes.

public class MainProjectActivity extends Activity {
    /** Called when the activity is first created. */

    static int Score = 0;

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

        //Display Scores
        final TextView displayScores = (TextView)findViewById(R.id.scoreDisplay);
        displayScores.setText("Your Score : "+ Score);

        //Play Game button activity
        Button gameButton = (Button)findViewById(R.id.PlayButton);
        gameButton.setOnClickListener(new OnClickListener() {

            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                Intent play = new Intent(getApplicationContext(), com.sample.game.PlayScreen.class);
                startActivity(play);
            }
        });

Upvotes: 1

Views: 4183

Answers (3)

K_Anas
K_Anas

Reputation: 31466

I'd start with adding super.onResume();:

@Override
protected void onResume(){
    super.onResume();
    // The rest
}

I would also remove that:

final TextView displayScores = (TextView)findViewById(R.id.scoreDisplay);
        displayScores.setText("Your Score : "+ Score);

from onCreate,and add it to onResume() since every time onCreate is called, onResume is called as well.

also change from public to protected onResume()

Upvotes: 3

ρяσѕρєя K
ρяσѕρєя K

Reputation: 132992

try this:

public class MainProjectActivity extends Activity {
    /** Called when the activity is first created. */
TextView displayScores;
    static int Score = 0;
@Override
protected void onResume(){
    super.onResume();
    // code to update the date here
    displayScores.setText("Your Score : "+ Score);

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

        //Display Scores
        displayScores = (TextView)findViewById(R.id.scoreDisplay);
        displayScores.setText("Your Score : "+ Score);

        //Play Game button activity
        Button gameButton = (Button)findViewById(R.id.PlayButton);
        gameButton.setOnClickListener(new OnClickListener() {

            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                Intent play = new Intent(getApplicationContext(), com.sample.game.PlayScreen.class);
                startActivity(play);
            }
        });

Upvotes: 1

Parag Chauhan
Parag Chauhan

Reputation: 35966

@Override
    protected void onResume() {
        // TODO Auto-generated method stub

        displayScores.setText("Your Score : "+ Score);

        super.onResume();
    }

Upvotes: 0

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