[英]Clicking hamburger icon on Toolbar does not open Navigation Drawer
I have this nav drawer which was working perfectly fine. 我有这个导航抽屉 ,工作正常。 Refactoring my code I removed all onOptionsItemSelecteds
in activities and made all activities inherit from a base activity which extends AppComplatActivity
and implements all the necessary methods. 重构代码,我删除了活动中的所有onOptionsItemSelecteds
,并使所有活动都继承自基本活动,该基本活动扩展了AppComplatActivity
并实现了所有必要的方法。 After this clicking on hamburger icon does not work any more even though I have syncstate
() and every thing. 在此之后,即使我具有syncstate
()和所有事物,单击汉堡包图标也不再起作用。
Any clues why this is not working? 任何线索为什么这不起作用?
One of the activities: 活动之一:
public class MainActivity extends BaseActivity implements SearchFilterFragment.OnFragmentInteractionListener {
NavigationView navigationView;
DrawerLayout drawerLayout;
private Tracker mTracker;
@Override
protected void onResume() {
super.onResume();
drawerLayout.openDrawer(GravityCompat.START);
}
@Override
protected void onPostResume() {
super.onPostResume();
mTracker.setScreenName("MainActivity" + "-----");
mTracker.send(new HitBuilders.ScreenViewBuilder().build());
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getWindow().getDecorView().setLayoutDirection(View.LAYOUT_DIRECTION_RTL);
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
drawerLayout.openDrawer(GravityCompat.START);
navigationView = (NavigationView) findViewById(R.id.navigation_view_primary);
navigationView.setNavigationItemSelectedListener(new NavigationDrawerListener(this));
setupToolbar();
Haftdong application = (Haftdong) getApplication();
mTracker = application.getDefaultTracker();
}
private void setupToolbar() {
// Show menu icon
final ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);// will make the icon clickable and add the < at the left of the icon.
DrawerLayout mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerToggle.syncState();//for hamburger icon
}
@Override
public void onFragmentInteraction(Uri uri) {
}
} }
BaseActivity: BaseActivity:
public class BaseActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@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_base, 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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
} }
You're using the four-parameter constructor for ActionBarDrawerToggle
, which means you'll have to call the toggle's onOptionsItemSelected()
method in MainActivity
's onOptionsItemSelected()
override in order to open/close the drawer. 您正在为ActionBarDrawerToggle
使用四参数构造函数,这意味着您必须在MainActivity
的onOptionsItemSelected()
重写中调用切换的onOptionsItemSelected()
方法才能打开/关闭抽屉。
For example: 例如:
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
If you happen to be providing your own Toolbar
– eg, as the support ActionBar
(though it's not necessary to set it as such) – then you can instead pass that Toolbar
as the third argument in the ActionBarDrawerToggle
constructor call. 如果碰巧提供了自己的Toolbar
(例如,作为对ActionBar
的支持(尽管不必如此设置)),则可以将该Toolbar
作为ActionBarDrawerToggle
构造函数调用中的第三个参数传递。 For example: 例如:
Toolbar toolbar = findViewById(R.id.toolbar);
ActionBarDrawerToggle mDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout,
toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
The drawer opening/closing will then be handled by ActionBarDrawerToggle
internally, and you won't need to call through to the toggle in onOptionsItemSelected()
. 然后,抽屉的打开/关闭将由ActionBarDrawerToggle
内部进行处理,您无需在onOptionsItemSelected()
调用切换按钮。
The setDisplayHomeAsUpEnabled()
call is also unnecessary for this setup, which is handy if you don't want to set the Toolbar
as the ActionBar
. 此设置也不需要setDisplayHomeAsUpEnabled()
调用,如果您不想将Toolbar
设置为ActionBar
,这将非常方便。
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