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我有一個導航菜單設置,但每當我從它選擇一個項目onNavigationItemSelected不會被調用。安卓導航菜單項目選定的監聽器沒有發射
MapsActivity.java
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
initializeMap();
googleApiClient = new GoogleApiClient.Builder(this)
.enableAutoManage(this, this)
.addConnectionCallbacks(this)
.addApi(LocationServices.API)
.build();
navigationMenu = (NavigationView) findViewById(R.id.navigation_menu);
mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
mToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.open, R.string.close);
mDrawerLayout.addDrawerListener(mToggle);
mToggle.syncState();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
toast = Toast.makeText(this, "test", Toast.LENGTH_LONG);
navigationMenu.setNavigationItemSelectedListener(this);
}
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
toast.show();
Log.v("NAV", "Navigation item selected");
Log.v("ITEM", item.getItemId() + "");
switch (item.getItemId()){
case R.id.nav_restaurant: {
//do stuff
}
case R.id.nav_pharmacy: {
//do stuff
}
case R.id.nav_bank: {
//do stuff
}
}
return false;
}
activity_maps.xml
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_height="match_parent"
android:layout_width="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout">
<android.support.design.widget.NavigationView
android:layout_width="200dp"
android:layout_height="match_parent"
app:menu="@menu/navigation_menu"
android:id="@+id/navigation_menu"
android:layout_gravity="start"
app:headerLayout="@layout/navigation_header">
</android.support.design.widget.NavigationView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Main Layout"
android:layout_gravity="center"
android:textAlignment="center"
android:textSize="30dp"/>
</LinearLayout>
<fragment
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.damia.placefinder.activities.MapsActivity" />
導航菜單打開和關閉完美的罰款,有一次我選擇一個項目甚至關閉,但是不會出現兩個日誌或吐司,顯示onNavigationIte mSelected從未被調用過。
我懷疑它與一切事物(地圖和激動抽屜)在同一活動中,但我不確定。