我正在尝试根据DrawerLayout中点击的项目来实现祝酒 - 然而无论我做什么,我似乎无法让吐司出现。我不确定我做错了什么:非常感谢任何建议。
private DrawerLayout drawerLayout;
private ListView drawerListView;
private String[] drawerListViewItems;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.home);
drawerListViewItems = getResources().getStringArray(R.array.items);
drawerListView = (ListView) findViewById(R.id.left_drawer);
drawerListView.setAdapter(new ArrayAdapter<String>(this,
R.layout.drawer_listview_item, drawerListViewItems));
mPager.setOnPageChangeListener(mPageChangeListener);
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
drawerLayout.setDrawerListener(actionBarDrawerToggle);
drawerListView.setOnItemClickListener(new DrawerItemClickListener());
drawerLayout.setDrawerShadow(R.drawable.drawer_shadow,
GravityCompat.START);
/* The click listener for ListView in the navigation drawer */
private class DrawerItemClickListener implements ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
}
}
private void selectItem(int position) {
if ( position == 1 )
{
Toast.makeText(Home.this, "Item 1", Toast.LENGTH_LONG).show();
}
else if ( position == 2 )
{
Toast.makeText(Home.this, "Item 2", Toast.LENGTH_LONG).show();
}
else
{
Toast.makeText(Home.this, "Item 3", Toast.LENGTH_LONG).show();
}
// update selected item and title, then close the drawer
drawerListView.setItemChecked(position, true);
drawerLayout.closeDrawer(drawerListView);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (actionBarDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
private class DrawerItemClickListener implements
ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView parent, View view,
int position, long id) {
Log.d("pk", "onItemClick");
// Highlight the selected item, update the title, and close the
// drawer
// update selected item and title, then close the drawer
drawerListView.setItemChecked(position, true);
setTitle("......");
String text = "menu click... should be implemented";
// Toast.makeText(Home.this, text, Toast.LENGTH_LONG).show();
drawerLayout.closeDrawer(drawerListView);
}
}
答案 0 :(得分:0)
我最近做了一件非常像这样的事情。我正在使用Fragments,但概念非常相似。
首先我创建了DrawerLayout:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
// read in the menu items form the string array
String[] menuList = getResources().getStringArray(R.array.drawer_menu);
mDrawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, menuList));
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
然后我定义了DrawerItemClickListener
:
/* The click listener for ListView in the navigation drawer */
private class DrawerItemClickListener implements ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
}
}
最后,我实现了selectItem
方法:
private void selectItem(int position) {
// update the main content by replacing fragments
Fragment fragment;
if ( position == 1 )
{
fragment = new CalendarFrag();
}
else if ( position == 2 )
{
fragment = new ContactsFrag();
}
else
{
fragment = new EmailListFragment();
}
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerLayout.closeDrawer(mDrawerList);
}
您可以轻松地将片段替换为活动,将beginTransation
替换为startActivity
。