problème de menu qui n'apparaît pas lors de l' exécution de mon application

Bonjour ,
je fait un projet qui est une application android et je suis débutante ,après l' exécution de mon code le menue que j' ai créer n' apparais pas dans l' application .
voila mon code :

Code:

---

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71

public class MainActivity extends AppCompatActivity{     public final static String EXTRA_MESSAGE = "MESSAGE"; private ListView obj; DBHelper mydb;   @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main);   mydb = new DBHelper(this); ArrayList array_list = mydb.getAllPatients(); ArrayAdapter arrayAdapter=new ArrayAdapter(this,android.R.layout.simple_list_item_1, array_list);   obj = (ListView)findViewById(R.id.listView1); obj.setAdapter(arrayAdapter); obj.setOnItemClickListener(new OnItemClickListener(){ @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) { // TODO Auto-generated method stub int id_To_Search = arg2 + 1;   Bundle dataBundle = new Bundle(); dataBundle.putInt("id", id_To_Search);   Intent intent = new Intent(getApplicationContext(),DisplayPatient.class);   intent.putExtras(dataBundle); startActivity(intent); } }); }   @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){ super.onOptionsItemSelected(item);   switch(item.getItemId()) { case R.id.item1:Bundle dataBundle = new Bundle(); dataBundle.putInt("id", 0);   Intent intent = new Intent(getApplicationContext(),DisplayPatient.class); intent.putExtras(dataBundle);   startActivity(intent); return true; default: return super.onOptionsItemSelected(item); } }   public boolean onKeyDown(int keycode, KeyEvent event) { if (keycode == KeyEvent.KEYCODE_BACK) { moveTaskToBack(true); } return super.onKeyDown(keycode, event); }       }

---

2eme activité :

Code:

---

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239

public class DisplayPatient extends Activity {   int from_Where_I_Am_Coming = 0; private DBHelper mydb ;   TextView nom ; TextView prenom; TextView age; TextView tel; TextView maladie; TextView degre_maladie; TextView commentaire; TextView groupe_sang; int id_To_Update = 0;     protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // recurepertation de donné saisie dans les edittext setContentView(R.layout.activity_display_patient); nom =(TextView) findViewById(R.id.editTextNom); prenom =(TextView) findViewById(R.id.editTextPrenom); age = (TextView) findViewById(R.id.editTextAge); tel = (TextView) findViewById(R.id.editTextTel); maladie = (TextView) findViewById(R.id.editTextMaladie); degre_maladie = (TextView) findViewById(R.id.editTextDgre); groupe_sang = (TextView) findViewById(R.id.editTextsang);   commentaire = (TextView) findViewById(R.id.editTextCommentaire);     // instancir un objet de la classe DBHelper mydb = new DBHelper(this);   Bundle extras = getIntent().getExtras(); if(extras !=null) { int Value = extras.getInt("id");   if(Value>0){ //means this is the view part not the add contact part. Cursor rs = mydb.getData(Value); id_To_Update = Value; rs.moveToFirst();   String nomv = rs.getString(rs.getColumnIndex(DBHelper.CONTACTS_COLUMN_NAME)); String prenomv = rs.getString(rs.getColumnIndex(DBHelper.CONTACTS_COLUMN_PRENOM)); String agev = rs.getString(rs.getColumnIndex(DBHelper.CONTACTS_COLUMN_AGE)); String telv = rs.getString(rs.getColumnIndex(DBHelper.CONTACTS_COLUMN_TEL)); String maladiev = rs.getString(rs.getColumnIndex(DBHelper.CONTACTS_COLUMN_MALADIE)); String degre_maladiev = rs.getString(rs.getColumnIndex(DBHelper.CONTACTS_COLUMN_DEGRE)); String groupe_sangv = rs.getString(rs.getColumnIndex(DBHelper.CONTACTS_COLUMN_GROUPE_SANG)); String commentairev = rs.getString(rs.getColumnIndex(DBHelper.CONTACTS_COLUMN_COMMENTAIRE));   if (!rs.isClosed()) { rs.close(); } Button b = (Button)findViewById(R.id.button1); b.setVisibility(View.INVISIBLE);   nom.setText((CharSequence)nomv); nom.setFocusable(false); nom.setClickable(false);   prenom.setText((CharSequence)prenomv); prenom.setFocusable(false); prenom.setClickable(false);   age.setText((CharSequence)agev); age.setFocusable(false); age.setClickable(false);   tel.setText((CharSequence) telv); tel.setFocusable(false); tel.setClickable(false);     maladie.setText((CharSequence) maladiev); maladie.setFocusable(false); maladie.setClickable(false);   degre_maladie.setText((CharSequence) degre_maladiev); degre_maladie.setFocusable(false); degre_maladie.setClickable(false);       groupe_sang.setText((CharSequence) groupe_sangv); groupe_sang.setFocusable(false); groupe_sang.setClickable(false);   commentaire.setText((CharSequence) commentairev); commentaire.setFocusable(false); commentaire.setClickable(false); } } }     // Creation d'un menu       @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. Bundle extras = getIntent().getExtras();   if(extras !=null) { int Value = extras.getInt("id"); if(Value>0){ getMenuInflater().inflate(R.menu.display_patient, menu); }   else{ getMenuInflater().inflate(R.menu.main_menu, menu); } } return true; }     // selection du menue     public boolean onOptionsItemSelected(MenuItem item) { super.onOptionsItemSelected(item); switch(item.getItemId()) { case R.id.Edit_Patient: Button b = (Button)findViewById(R.id.button1); b.setVisibility(View.VISIBLE); nom.setEnabled(true); nom.setFocusableInTouchMode(true); nom.setClickable(true);   prenom.setEnabled(true); prenom.setFocusableInTouchMode(true); prenom.setClickable(true);   age.setEnabled(true); age.setFocusableInTouchMode(true); age.setClickable(true);   tel.setEnabled(true); tel.setFocusableInTouchMode(true); tel.setClickable(true);   maladie.setEnabled(true); maladie.setFocusableInTouchMode(true); maladie.setClickable(true); degre_maladie.setEnabled(true); degre_maladie.setFocusableInTouchMode(true); degre_maladie.setClickable(true);   groupe_sang.setEnabled(true); groupe_sang.setFocusableInTouchMode(true); groupe_sang.setClickable(true);   commentaire.setEnabled(true); commentaire.setFocusableInTouchMode(true); commentaire.setClickable(true);   return true; case R.id.Delete_Patient:   AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage(R.string.deletePatient) .setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { mydb.deletePatients(id_To_Update); Toast.makeText(getApplicationContext(), "Deleted Successfully", Toast.LENGTH_SHORT).show(); Intent intent = new Intent(getApplicationContext(),MainActivity.class); startActivity(intent); } }) .setNegativeButton(R.string.no, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { // User cancelled the dialog } }); AlertDialog d = builder.create(); d.setTitle("Are you sure"); d.show();   return true; default: return super.onOptionsItemSelected(item);   } }           // public void run(View view) { Bundle extras = getIntent().getExtras(); if(extras !=null) { int Value = extras.getInt("id"); if(Value>0){ if(mydb.updatePatients(id_To_Update, nom.getText().toString(), prenom.getText().toString(), age.getText().toString(), tel.getText().toString(), maladie.getText().toString(), degre_maladie.getText().toString(), groupe_sang.getText().toString(), commentaire.getText().toString())){ Toast.makeText(getApplicationContext(), "Modifier", Toast.LENGTH_SHORT).show(); Intent intent = new Intent(getApplicationContext(),MainActivity.class); startActivity(intent); } else{ Toast.makeText(getApplicationContext(), "n'est pas modifier", Toast.LENGTH_SHORT).show(); } } else{ if(mydb.insertPatients(nom.getText().toString(), prenom.getText().toString(), age.getText().toString(), tel.getText().toString(), maladie.getText().toString(), degre_maladie.getText().toString(), groupe_sang.getText().toString(), commentaire.getText().toString())){ Toast.makeText(getApplicationContext(), "enregister", Toast.LENGTH_SHORT).show(); }   else{ Toast.makeText(getApplicationContext(), "n'est pas enregister", Toast.LENGTH_SHORT).show(); } Intent intent = new Intent(getApplicationContext(),MainActivity.class); startActivity(intent); } } }                   }

---

menu:

Code:

---

1 2 3 4 5 6 7 8 9 10 11 12

<?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android">   <item android:id="@+id/item1" android:icon="@drawable/ajout" android:title="@string/Ajouter" > </item>         </menu>

---

Code:

---

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

<?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android">       <item android:id="@+id/Edit_Patient" android:orderInCategory="100" android:title="@string/edit"/>   <item android:id="@+id/Delete_Patient" android:orderInCategory="100" android:title="@string/delete"/>   </menu>

---