android - 当我将GoogleMaps添加到我的应用程序时，为什么导航抽屉停止工作？

package com.trippal.trippal; import android.app.Dialog; import android.app.FragmentManager; import android.location.Address; import android.location.Geocoder; import android.os.Bundle; import android.support.design.widget.NavigationView; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.inputmethod.InputMethodManager; import android.widget.TextView; import android.widget.Toast; import com.google.android.gms.common.ConnectionResult; import com.google.android.gms.common.GooglePlayServicesUtil; import com.google.android.gms.maps.CameraUpdate; import com.google.android.gms.maps.CameraUpdateFactory; import com.google.android.gms.maps.GoogleMap; import com.google.android.gms.maps.SupportMapFragment; import com.google.android.gms.maps.model.LatLng; import java.io.IOException; import java.util.List; public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener { GoogleMap mMap; private static final int ERROR_DIALOG_REQUEST = 9001; private static final double CSULA_LAT = 34.065207, CSULA_LNG = -118.170125, LASVEGAS_LAT = 36.126750, LASVEGAS_LNG = -115.165718; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); if (initMap()) { Toast.makeText(this, "Ready to map!", Toast.LENGTH_SHORT).show(); gotoLocation(CSULA_LAT, CSULA_LNG, 14); } else { Toast.makeText(this, "Map not connected!", Toast.LENGTH_SHORT).show(); } Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); ActionBarDrawerToggle toggle = new ActionBarDrawerToggle( this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close); drawer.setDrawerListener(toggle); toggle.syncState(); NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view); navigationView.setNavigationItemSelectedListener(this); } @Override public void onBackPressed() { DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); if (drawer.isDrawerOpen(GravityCompat.START)) { drawer.closeDrawer(GravityCompat.START); } else { super.onBackPressed(); } } @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(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } @SuppressWarnings("StatementWithEmptyBody") @Override public boolean onNavigationItemSelected(MenuItem item) { // Handle navigation view item clicks here. int id = item.getItemId(); FragmentManager fragmentManager = getFragmentManager(); if (id == R.id.nav_new_trip_layout) { fragmentManager.beginTransaction() .replace(R.id.content_frame , new NewTripFragment()) .commit(); } else if (id == R.id.nav_saved_trip_layout) { fragmentManager.beginTransaction() .replace(R.id.content_frame , new SavedTripFragment()) .commit(); } else if (id == R.id.nav_saved_poi_layout) { fragmentManager.beginTransaction() .replace(R.id.content_frame , new SavedPOIFragment()) .commit(); } else if (id == R.id.nav_pref_layout) { fragmentManager.beginTransaction() .replace(R.id.content_frame , new PrefFragment()) .commit(); } else if (id == R.id.nav_share) { } else if (id == R.id.nav_send) { } DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); drawer.closeDrawer(GravityCompat.START); return true; } // ***** map logic ***** // checks if map service is connected public boolean servicesOK() { int isAvailable = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this); if (isAvailable == ConnectionResult.SUCCESS) { return true; } else if (GooglePlayServicesUtil.isUserRecoverableError(isAvailable)) { Dialog dialog = GooglePlayServicesUtil.getErrorDialog(isAvailable, this, ERROR_DIALOG_REQUEST); dialog.show(); } else { Toast.makeText(this, "Can't connect to mapping service", Toast.LENGTH_SHORT); } return false; } // initiates google map private boolean initMap() { if (mMap == null) { SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map); mMap = mapFragment.getMap(); } return (mMap != null); } // moves the camera location private void gotoLocation(double lat, double lng, float zoom){ LatLng latLng = new LatLng(lat, lng); CameraUpdate update = CameraUpdateFactory.newLatLngZoom(latLng, zoom); mMap.moveCamera(update); } // hides softkey private void hideSoftKeyboard(View v){ InputMethodManager imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(v.getWindowToken(), 0); } // geo location public void geoLocate(View v) throws IOException { hideSoftKeyboard(v); TextView tv = (TextView) findViewById(R.id.map_editText_location); String searchString = tv.getText().toString(); Geocoder gc = new Geocoder(this); List<Address> list = gc.getFromLocationName(searchString, 1); if (list.size() > 0){ Address address = list.get(0); String locality = address.getLocality(); Toast.makeText(this, "Found: " + locality, Toast.LENGTH_SHORT).show(); double lat = address.getLatitude(); double lng = address.getLongitude(); gotoLocation(lat, lng, 15); } } }

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:context="com.trippal.trippal.MainActivity" tools:showIn="@layout/app_bar_main"> <LinearLayout android:id="@+id/content_frame" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:id="@+id/map_textView_location" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/map_textView_location" android:textSize="22dp" /> <EditText android:id="@+id/map_editText_location" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@id/map_textView_location" android:layout_toRightOf="@id/map_textView_location" android:ems="6" android:inputType="textCapWords" android:textSize="22dp" /> <Button android:id="@+id/button_search" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@id/map_textView_location" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" android:onClick="geoLocate" android:text="@string/map_button_search" /> </RelativeLayout> <fragment xmlns:android="http://schemas.android.com/apk/res/android" xmlns:map="http://schemas.android.com/apk/res-auto" android:id="@+id/map" android:name="com.google.android.gms.maps.SupportMapFragment" android:layout_width="match_parent" android:layout_height="wrap_content" /> </LinearLayout> </RelativeLayout>