onMenuItemSelected從不執行

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這裏是大多數Main類的代碼，其中onMenuClick被忽略。


public class Main extends TabActivity { 

public static final int ACTIVITY_CREATE = 0; 

private static final int ADD_ID = Menu.FIRST; 

private Long listId; 
private DbHelper mDbHelper; 
private Cursor mCursor; 

/** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     // Set the list id 
     Bundle extras = getIntent().getExtras(); 
     if (extras != null) { 
     listId = extras.getLong("listId"); 
     } 

     // Open the database 
     mDbHelper = new DbHelper(this); 
     mDbHelper.open(); 

     // Setup the tabs 
     createTabs(); 
    } 

    public void createTabs() { 
    mCursor = mDbHelper.fetchAllCategories(listId); 
    startManagingCursor(mCursor); 

    for (int i = 0; i [less than symbol] mCursor.getCount(); i++) 
    { 
     createTab(
    mCursor.getLong(mCursor.getColumnIndexOrThrow("_id")), 
    mCursor.getString(mCursor.getColumnIndexOrThrow("category"))); 
    } 
    } 

    public void createTab(Long categoryId, String category) { 
     TabHost tabHost = getTabHost(); 
     TabHost.TabSpec spec; 
     Intent intent; 

     intent = new Intent(); 
     intent.putExtra("Test", category); 
     intent.setClass(this, Categories.class); 
    spec = tabHost.newTabSpec(category); 
    spec.setContent(intent); 
    spec.setIndicator(category); 
    tabHost.addTab(spec);  
    } 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    super.onCreateOptionsMenu(menu); 
    menu.add(0, ADD_ID, 0, R.string.menu_addCategory).setIcon(R.drawable.add_grey); 
    return true; 
} 

@Override 
public boolean onMenuItemSelected(int featureId, MenuItem item) { 
    switch (item.getItemId()) { 
    case ADD_ID: 
    addCategory(); 
    return true; 
    } 

    return super.onMenuItemSelected(featureId, item); 
} 

public void addCategory() { 
    Intent intent = new Intent(); 
    intent.setClass(this, CategoryEdit.class); 
    startActivityForResult(intent, ACTIVITY_CREATE); 
} 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent intent) { 
    super.onActivityResult(requestCode, resultCode, intent); 

    switch (requestCode) { 
    case ACTIVITY_CREATE: 
    if (resultCode == RESULT_OK) { 
    Bundle createExtras = intent.getExtras(); 
    mDbHelper.addCategory(createExtras.getString("category")); 

    } 
    } 
} 
}

最初我的CategoryEdit.class沒有在AndroidManifest.xml文件中列出。我已將其添加到清單並仍然收到相同的錯誤。

來源

2010-08-27 alockrem

使用::

public boolean onOptionsItemSelected(MenuItem item) {

，而不是::

public boolean onMenuItemSelected(int featureId, MenuItem item) {

來源

2010-08-27 15:17:51 Jorgesys

就是這樣！非常感謝你。我不確定onOptionsItemSelected或onMenuItemSelected之間有什麼不同，但我會做一些研究並找出答案。再次感謝您的幫助。 – alockrem 2010-08-27 17:51:17

嘗試將其更改爲intent.setClass(TabActivity.this, CategoryEdit.class);

如果不行，我會需要從logcat的一些輸出比較多，可以一條線，它是真正幫助很大。

來源

2010-08-27 15:09:55 smith324

謝謝您的幫助。我試過這個，但它沒有解決問題。 onOptionsItemSelected建議起作用。 – alockrem 2010-08-27 17:51:52

onMenuItemSelected從不執行

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