Menu intention dans Android

Question

 I have this menu example But in this example new activity is not called, 
     please give me the solution 

     package Com.ContactProject; 





     import android.app.Activity; 
     import android.content.Intent; 
     import android.os.Bundle; 
     import android.view.MenuInflater; 
     import android.view.Menu; 

     import android.view.MenuItem; 

    public class Contact extends Activity { 
     /** Called when the activity is first created. */ 
     private static final int MENU_NEW_GAME = 0; 
     private static final int MENU_QUIT = 1; 
     private static final int MENU_COUNTRIES = 2; 

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



} 
public boolean onCreateOptionsMenu(Menu menu) { 

    MenuInflater inflater = getMenuInflater(); 
    inflater.inflate(R.menu.options_menu, menu); 

    return true; 

} 

public boolean onOptionsItemSelected (point MenuItem) {

switch (item.getItemId()) { 
    case MENU_NEW_GAME: 
     Intent cityMap = new Intent(Contact.this, Add.class); 
     startActivity(cityMap); 
     //newGame(); 
     return true; 
    case MENU_QUIT: 
     Intent cityMap1 = new Intent(Contact.this, Sms.class); 
     startActivity(cityMap1); 
     //quit(); 
     return true; 
    case MENU_COUNTRIES: 
     Intent cityMap2 = new Intent(Contact.this, Update.class); 
     startActivity(cityMap2); 
     return true; 

    default: 

    } 
    return false; 
} 

}

Answer 1

Votre cas Switch doit être comme le

suivant

code emprunté à here

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle item selection 
    switch (item.getItemId()) { 
    case R.id.new_game: 
     newGame(); 
     return true; 
    case R.id.quit: 
     quit(); 
     return true; 
    default: 
     return super.onOptionsItemSelected(item); 
    } 
} 

N'utilisez pas vos propres constantes, utilisez celles qui sont générées dans le fichier R.