onOptionsItemSelected不起作用

Question

我在這裏有兩個問題。首先是沒有任何反應，當我點擊我已經設置的選項，在這種情況下，它是添加項目，將用戶到另一個活動的選項，但沒有任何反應，當我點擊。我創建了一個按鈕，它調用了相同的活動並且它正在工作。在listView中選擇項目也不起作用，並且應該有一個從listView和數據庫中刪除項目的彈出框，但是沒有。我想在這裏appricieate一些幫助，如果任何人都可以建議我如何建立在ListView和計算有多少項目選擇的選擇題檢查類似this

因此，這裏是我的MainActivity：

public class MainActivity extends BaseActivity { 

    // Declare variables 
    private static final int ACTIVITY_CREATE=0; 
    private static final int ACTIVITY_EDIT=1; 

    private static final int INSERT_ID = Menu.FIRST; 
    private static final int DELETE_ID = Menu.FIRST + 1; 

    private GroceryDbAdapter mDbHelper; 

    Button addItem; 
    private Toolbar toolbar; 
    private ListView listView; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     FrameLayout frameLayout = (FrameLayout)findViewById(R.id.frame_container); 

     // inflate the custom activity layout 
     LayoutInflater layoutInflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     View activityView = layoutInflater.inflate(R.layout.activity_main, null,false); 

     frameLayout.addView(activityView); 

     // Setting toolbar 
     toolbar = (Toolbar) findViewById(R.id.app_bar); 
     setSupportActionBar(toolbar); 
     getSupportActionBar().setDisplayHomeAsUpEnabled(true); 
     getSupportActionBar().setHomeButtonEnabled(true); 
     getSupportActionBar().setLogo(R.drawable.shopping_cart_logo); 

     // Setting database and adapter 
     mDbHelper = new GroceryDbAdapter(this); 
     mDbHelper.open(); 

     // Locate ListView 
     listView = (ListView) findViewById(R.id.list); 

     // Locate button and initialization 
     addItem = (Button) findViewById(R.id.add_item); 
     addItem.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       Intent intent = new Intent(MainActivity.this, AddActivity.class); 
       startActivity(intent); 
       overridePendingTransition(R.anim.slide_in, R.anim.slide_out); 

      } 
     }); 

     fillData(); 
    } 

    @SuppressWarnings("deprecation") 
    private void fillData() { 
     Cursor itemsCursor = mDbHelper.fetchAllItems(); 
     startManagingCursor(itemsCursor); 

     // Create an array to specify the fields we want to display in the list (only TITLE) 
     String[] from = new String[]{GroceryDbAdapter.KEY_TITLE, GroceryDbAdapter.KEY_PRICE}; 

     // and an array of the fields we want to bind those fields to (in this case just title) 
     int[] to = new int[]{R.id.title, R.id.price}; 

     // Now create a simple cursor adapter and set it to display 
     SimpleCursorAdapter items = 
      new SimpleCursorAdapter(this, R.layout.list_item_row, itemsCursor, from, to); 
     listView.setAdapter(items); 

    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     super.onCreateOptionsMenu(menu); 
     menu.add(0, INSERT_ID, 0, "Add Item"); 
     return true; 
    } 

    public boolean onOptionsItemSelected(int featureId, MenuItem item) { 
     switch(item.getItemId()) { 
      case INSERT_ID: 
       createItem(); 
       return true; 
     } 

     return super.onMenuItemSelected(featureId, item); 
    } 

    @Override 
    public void onCreateContextMenu(ContextMenu menu, View v, 
      ContextMenuInfo menuInfo) { 
     super.onCreateContextMenu(menu, v, menuInfo); 
     menu.add(0, DELETE_ID, 0, "Delete Item"); 
    } 

    @Override 
    public boolean onContextItemSelected(MenuItem item) { 
     switch(item.getItemId()) { 
      case DELETE_ID: 
       AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo(); 
       mDbHelper.deleteItem(info.id); 
       fillData(); 
       return true; 
     } 
     return super.onContextItemSelected(item); 
    } 

    private void createItem() { 
     Intent i = new Intent(this, AddActivity.class); 
     startActivityForResult(i, ACTIVITY_CREATE); 
    } 

    public void onListItemClick(ListView l, View v, int position, long id) { 
     super.onListItemClick(l, v, position, id); 
     Intent i = new Intent(this, AddActivity.class); 
     i.putExtra(GroceryDbAdapter.KEY_ROWID, id); 
     startActivityForResult(i, ACTIVITY_EDIT); 
    } 

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

這裏是我的AddActivity.java，當用戶從菜單（不工作）和按鈕（正在工作）上點擊addItem時應該調用AddActivity.java：

public class AddActivity extends BaseActivity { 

    private Long mRowId; 
    private GroceryDbAdapter mDbHelper; 
    private EditText title_edit; 
    private EditText price_edit; 
    private Button saveButton; 

    private Toolbar toolbar; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     // TODO Auto-generated method stub 
     super.onCreate(savedInstanceState); 
     mDbHelper = new GroceryDbAdapter(this); 
     mDbHelper.open(); 
     setContentView(R.layout.add_activity_layout); 

     mDrawerToggle.setDrawerIndicatorEnabled(false); 
     toolbar = (Toolbar) findViewById(R.id.app_bar); 
     setSupportActionBar(toolbar); 
     getSupportActionBar().setDisplayHomeAsUpEnabled(true); 
     getSupportActionBar().setHomeButtonEnabled(true); 
     toolbar.setNavigationIcon(R.drawable.ic_action_back); 
     getSupportActionBar().setLogo(R.drawable.shopping_cart_logo); 


     // Locate the EditText in add_activity_layout.xml 
     title_edit = (EditText) findViewById(R.id.titleEdit); 
     price_edit = (EditText) findViewById(R.id.priceEdit); 

     mRowId = (savedInstanceState == null) ? null : 
      (Long) savedInstanceState.getSerializable(GroceryDbAdapter.KEY_ROWID); 
     if (mRowId == null) { 
      Bundle extras = getIntent().getExtras(); 
      mRowId = extras != null ? extras.getLong(GroceryDbAdapter.KEY_ROWID) 
            : null; 
     } 

     populateFields(); 

     saveButton = (Button) findViewById(R.id.save); 

     saveButton.setOnClickListener(new View.OnClickListener() { 

      public void onClick(View view) { 
       setResult(RESULT_OK); 
       finish(); 
       overridePendingTransition(R.anim.slide_in_back, R.anim.slide_out_back); 
      } 

     }); 

    } 

    private void populateFields() { 
     if (mRowId != null) { 
      Cursor item = mDbHelper.fetchItem(mRowId); 
      startManagingCursor(item); 
      title_edit.setText(item.getString(
        item.getColumnIndexOrThrow(GroceryDbAdapter.KEY_TITLE))); 
      price_edit.setText(item.getString(
        item.getColumnIndexOrThrow(GroceryDbAdapter.KEY_PRICE))); 
     } 

    } 

    @Override 
    protected void onSaveInstanceState(Bundle outState) { 
     super.onSaveInstanceState(outState); 
     saveState(); 
     outState.putSerializable(GroceryDbAdapter.KEY_ROWID, mRowId); 
    } 

    @Override 
    protected void onPause() { 
     super.onPause(); 
     saveState(); 
    } 

    @Override 
    protected void onResume() { 
     super.onResume(); 
     populateFields(); 
    } 

    private void saveState() { 
     String title = title_edit.getText().toString(); 
     String price = price_edit.getText().toString(); 

     if (mRowId == null) { 
      long id = mDbHelper.createItem(title, price); 
      if (id > 0) { 
       mRowId = id; 
      } 
     } else { 
      mDbHelper.updateItem(mRowId, title, price); 
     } 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 

     if (id == R.id.home) { 
      NavUtils.navigateUpFromSameTask(this); 
     } 

     return super.onOptionsItemSelected(item); 
    } 

} 

這裏是我的MainActivity的佈局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/mainContent" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" > 

    <include 
     android:id="@+id/app_bar" 
     layout="@layout/app_bar" /> 

    <Button 
     android:id="@+id/add_item" 
     style="@style/MyCustomButton" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_alignParentBottom="true" 
     android:text="@string/add_button" /> 

    <ListView 
     android:id="@+id/list" 
     android:choiceMode="multipleChoice" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_above="@+id/add_item" 
     android:layout_below="@+id/relativeLayout" 
     android:layout_centerHorizontal="true" 
     android:layout_margin="@dimen/margin" 
     android:divider="@color/list_divider_row" 
     android:dividerHeight="@dimen/divider_height" 
     android:listSelector="@drawable/list_row_selector" > 

    </ListView> 

    <RelativeLayout 
     android:id="@+id/relativeLayout" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignLeft="@+id/listView1" 
     android:layout_alignStart="@+id/listView1" 
     android:layout_alignRight="@+id/listView1" 
     android:layout_alignEnd="@+id/listView1" 
     android:layout_below="@+id/app_bar" 
     android:padding="@dimen/relative_layout_padding" > 

     <TextView 
      android:id="@+id/item_text" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_alignParentLeft="true" 
      android:layout_alignParentTop="true" 
      android:layout_marginLeft="10dp" 
      android:layout_marginTop="4dp" 
      android:text="Items" 
      android:textColor="#474747" 
      android:textSize="16sp" /> 

     <TextView 
      android:id="@+id/item_count" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_alignParentTop="true" 
      android:layout_marginLeft="5dp" 
      android:layout_marginTop="4dp" 
      android:layout_toRightOf="@+id/item_text" 
      android:text="(2)" 
      android:textColor="#474747" 
      android:textSize="14sp" /> 

     <TextView 
      android:id="@+id/total_amount" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_alignParentRight="true" 
      android:layout_centerVertical="true" 
      android:text="Rs. 5700" 
      android:textColor="#000000" 
      android:textSize="20dp" /> 

    </RelativeLayout> 

</RelativeLayout> 

編輯

我BaseActivity代碼：

package com.dusandimitrijevic.grocerylist; 

import java.util.ArrayList; 

import com.dusandimitrijevic.adapters.NavDrawerListAdapter; 

import android.content.Intent; 
import android.content.res.Configuration; 
import android.content.res.TypedArray; 
import android.os.Bundle; 
import android.support.v4.widget.DrawerLayout; 
import android.support.v7.app.ActionBarDrawerToggle; 
import android.support.v7.app.AppCompatActivity; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.widget.AdapterView; 
import android.widget.ListView; 

public abstract class BaseActivity extends AppCompatActivity { 

    private DrawerLayout mDrawerLayout; 
    private ListView mDrawerList; 
    public ActionBarDrawerToggle mDrawerToggle; 

    // nav drawer title 
    private CharSequence mDrawerTitle; 

    // used to store app title 
    private CharSequence mTitle; 

    // slide menu items 
    private String[] navMenuTitles; 
    private TypedArray navMenuIcons; 

    private ArrayList<NavDrawerItem> navDrawerItems; 
    private NavDrawerListAdapter adapter; 

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

     mTitle = mDrawerTitle = getTitle(); 

    // load slide menu items 
     navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items); 

    // nav drawer icons from resources 
     navMenuIcons = getResources() 
       .obtainTypedArray(R.array.nav_drawer_icons); 

     mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); 
     mDrawerList = (ListView) findViewById(R.id.list_slidermenu); 

     navDrawerItems = new ArrayList<NavDrawerItem>(); 

    // adding nav drawer items to array 
     // Home 
     navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1))); 
     // Shop 
     navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1))); 
     // Calendar 
     navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1))); 
     // Settings 
     navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1))); 
     // About 
     navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1))); 

    // Recycle the typed array 
     navMenuIcons.recycle(); 

     mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); 

     // setting the nav drawer list adapter 
     adapter = new NavDrawerListAdapter(getApplicationContext(), 
       navDrawerItems); 
     mDrawerList.setAdapter(adapter); 


     mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, 
       R.drawable.ic_drawer, //nav menu toggle icon 
       R.string.app_name 
     ){ 
      public void onDrawerClosed(View view) { 
       getSupportActionBar().setTitle(mTitle); 
       // calling onPrepareOptionsMenu() to show action bar icons 
       invalidateOptionsMenu(); 
      } 

      public void onDrawerOpened(View drawerView) { 
       getSupportActionBar().setTitle(mDrawerTitle); 
       // calling onPrepareOptionsMenu() to hide action bar icons 
       invalidateOptionsMenu(); 
      } 
     }; 
    } 

    private class DrawerItemClickListener implements ListView.OnItemClickListener { 
     @Override 
     public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) { 
      switch (position) { 
       case 0: { 
        Intent intent = new Intent(BaseActivity.this, MainActivity.class); 
        startActivity(intent); 
        break; 
       } 
       case 1: { 
        Intent intent = new Intent(BaseActivity.this, MainActivity.class); 
        startActivity(intent); 
        break; 
       } 
       case 2: { 
        Intent intent = new Intent(BaseActivity.this, MainActivity.class); 
        startActivity(intent); 
        break; 
       } 
       case 3: { 
        Intent intent = new Intent(BaseActivity.this, MainActivity.class); 
        startActivity(intent); 
        break; 
       } 
       case 4: { 
        Intent intent = new Intent(BaseActivity.this, MainActivity.class); 
        startActivity(intent); 
        break; 
       } 
       default: 
        break; 
      } 
      mDrawerLayout.closeDrawer(mDrawerList); 
     } 
    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.main, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 
     if (id == R.id.action_settings) { 
      return true; 
     } 
     return super.onOptionsItemSelected(item); 
    } 

    /*** 
    * Called when invalidateOptionsMenu() is triggered 
    */ 
    @Override 
    public boolean onPrepareOptionsMenu(Menu menu) { 
     // if nav drawer is opened, hide the action items 
     boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList); 
     menu.findItem(R.id.action_settings).setVisible(!drawerOpen); 
     return super.onPrepareOptionsMenu(menu); 
    } 

    @Override 
    public void setTitle(CharSequence title) { 
     mTitle = title; 
     getActionBar().setTitle(mTitle); 
    } 

    /** 
    * When using the ActionBarDrawerToggle, you must call it during 
    * onPostCreate() and onConfigurationChanged()... 
    */ 

    @Override 
    protected void onPostCreate(Bundle savedInstanceState) { 
     super.onPostCreate(savedInstanceState); 
     // Sync the toggle state after onRestoreInstanceState has occurred. 
     mDrawerToggle.syncState(); 
    } 

    @Override 
    public void onConfigurationChanged(Configuration newConfig) { 
     super.onConfigurationChanged(newConfig); 
     // Pass any configuration change to the drawer toggls 
     mDrawerToggle.onConfigurationChanged(newConfig); 
    } 

    @Override 
    public void onBackPressed() { 
     // TODO Auto-generated method stub 
     super.onBackPressed(); 
     overridePendingTransition(R.anim.slide_in_back, R.anim.slide_out_back); 
    } 

    public void onListItemClick(ListView l, View v, int position, long id) { 
     // TODO Auto-generated method stub 

    } 

} 

Answer 1

，而不是addItem.setOnClickListener，請使用listView.setOnItemClickListener

listView.setOnItemClickListener(new OnItemClickListener() { 
    @Override 
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
     Intent intent = new Intent(MainActivity.this, AddActivity.class); 
     startActivity(intent); 
     overridePendingTransition(R.anim.slide_in, R.anim.slide_out); 
    } 
}); 

菜單項點擊，

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    int itemId = item.getItemId(); 
    if (itemId == DELETE_ID) { 
      AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo(); 
      mDbHelper.deleteItem(info.id); 
      fillData(); 
    } 
    return true; 
}