我在调用HomeClient.java类时在应用程序中登录时遇到此错误....我正在开发Taxy调用App，我也使用了Sliding抽屉和Map ....
02-02 14:26:40.378: E/AndroidRuntime(1634): FATAL EXCEPTION: main
02-02 14:26:40.378: E/AndroidRuntime(1634): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.fenixcar/com.example.fenixcar.HomeClient}: java.lang.NullPointerException
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.ActivityThread.access$600(ActivityThread.java:141)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.os.Handler.dispatchMessage(Handler.java:99)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.os.Looper.loop(Looper.java:137)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.ActivityThread.main(ActivityThread.java:5041)
02-02 14:26:40.378: E/AndroidRuntime(1634): at java.lang.reflect.Method.invokeNative(Native Method)
02-02 14:26:40.378: E/AndroidRuntime(1634): at java.lang.reflect.Method.invoke(Method.java:511)
02-02 14:26:40.378: E/AndroidRuntime(1634): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
02-02 14:26:40.378: E/AndroidRuntime(1634): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
02-02 14:26:40.378: E/AndroidRuntime(1634): at dalvik.system.NativeStart.main(Native Method)
02-02 14:26:40.378: E/AndroidRuntime(1634): Caused by: java.lang.NullPointerException
02-02 14:26:40.378: E/AndroidRuntime(1634): at com.example.fenixcar.HomeFragment.onCreateView(HomeFragment.java:61)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.Fragment.performCreateView(Fragment.java:1695)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:885)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1057)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.BackStackRecord.run(BackStackRecord.java:682)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1435)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.Activity.performStart(Activity.java:5113)
02-02 14:26:40.378: E/AndroidRuntime(1634): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2153)
02-02 14:26:40.378: E/AndroidRuntime(1634): ... 11 more
02-02 14:26:40.627: W/ActivityManager(293): Force finishing activity com.example.fenixcar/.HomeClient
02-02 14:26:40.637: W/ActivityManager(293): Force finishing activity com.example.fenixcar/.Login
02-02 14:26:41.147: W/ActivityManager(293): Activity pause timeout for ActivityRecord{415c5030 u0 com.example.fenixcar/.HomeClient}
02-02 14:26:41.168: I/Choreographer(293): Skipped 127 frames! The application may be doing too much work on its main thread.
02-02 14:26:41.197: E/SurfaceFlinger(36): ro.sf.lcd_density must be defined as a build property
02-02 14:26:41.378: D/dalvikvm(293): GC_CONCURRENT freed 452K, 62% free 5039K/13004K, paused 143ms+58ms, total 855ms
02-02 14:26:41.438: I/Choreographer(538): Skipped 119 frames! The application may be doing too much work on its main thread.
02-02 14:26:41.598: E/SurfaceFlinger(36): ro.sf.lcd_density must be defined as a build property
02-02 14:26:41.708: I/Choreographer(538): Skipped 56 frames! The application may be doing too much work on its main thread.
02-02 14:26:41.948: I/Choreographer(293): Skipped 72 frames! The application may be doing too much work on its main thread.
02-02 14:26:41.998: I/Choreographer(293): Skipped 107 frames! The application may be doing too much work on its main thread.
02-02 14:26:52.076: W/ActivityManager(293): Activity destroy timeout for ActivityRecord{40d257a8 u0 com.example.fenixcar/.Login}
02-02 14:26:52.078: W/ActivityManager(293): Activity destroy timeout for ActivityRecord{415c5030 u0 com.example.fenixcar/.HomeClient}
02-02 14:26:56.236: D/ExchangeService(756): Received deviceId from Email app: null
02-02 14:26:56.237: D/ExchangeService(756): !!! deviceId unknown; stopping self and retrying
02-02 14:27:01.318: D/ExchangeService(756): !!! EAS ExchangeService, onCreate
02-02 14:27:01.328: D/ExchangeService(756): !!! EAS ExchangeService, onStartCommand, startingUp = false, running = false
02-02 14:27:01.338: D/ExchangeService(756): !!! EAS ExchangeService, onStartCommand, startingUp = true, running = false
02-02 14:27:01.348: W/ActivityManager(293): Unable to start service Intent { act=com.android.email.ACCOUNT_INTENT } U=0: not found
02-02 14:27:01.348: D/ExchangeService(756): !!! Email application not found; stopping self
02-02 14:27:01.358: W/ActivityManager(293): Unable to start service Intent { act=com.android.email.ACCOUNT_INTENT } U=0: not found
02-02 14:27:01.378: E/ActivityThread(756): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d40878 that was originally bound here
02-02 14:27:01.378: E/ActivityThread(756): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d40878 that was originally bound here
02-02 14:27:01.378: E/ActivityThread(756): at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
02-02 14:27:01.378: E/ActivityThread(756): at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
02-02 14:27:01.378: E/ActivityThread(756): at android.app.ContextImpl.bindService(ContextImpl.java:1418)
02-02 14:27:01.378: E/ActivityThread(756): at android.app.ContextImpl.bindService(ContextImpl.java:1407)
02-02 14:27:01.378: E/ActivityThread(756): at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
02-02 14:27:01.378: E/ActivityThread(756): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
02-02 14:27:01.378: E/ActivityThread(756): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
02-02 14:27:01.378: E/ActivityThread(756): at com.android.emailcommon.service.AccountServiceProxy.getDeviceId(AccountServiceProxy.java:116)
02-02 14:27:01.378: E/ActivityThread(756): at com.android.exchange.ExchangeService.getDeviceId(ExchangeService.java:1249)
02-02 14:27:01.378: E/ActivityThread(756): at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1856)
02-02 14:27:01.378: E/ActivityThread(756): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
02-02 14:27:01.378: E/ActivityThread(756): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
02-02 14:27:01.378: E/ActivityThread(756): at android.os.AsyncTask$2.call(AsyncTask.java:287)
02-02 14:27:01.378: E/ActivityThread(756): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
02-02 14:27:01.378: E/ActivityThread(756): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
02-02 14:27:01.378: E/ActivityThread(756): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
02-02 14:27:01.378: E/ActivityThread(756): at java.lang.Thread.run(Thread.java:856)
02-02 14:27:01.468: E/StrictMode(756): null
02-02 14:27:01.468: E/StrictMode(756): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d40878 that was originally bound here
02-02 14:27:01.468: E/StrictMode(756): at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
02-02 14:27:01.468: E/StrictMode(756): at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
02-02 14:27:01.468: E/StrictMode(756): at android.app.ContextImpl.bindService(ContextImpl.java:1418)
02-02 14:27:01.468: E/StrictMode(756): at android.app.ContextImpl.bindService(ContextImpl.java:1407)
02-02 14:27:01.468: E/StrictMode(756): at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
02-02 14:27:01.468: E/StrictMode(756): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
02-02 14:27:01.468: E/StrictMode(756): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
02-02 14:27:01.468: E/StrictMode(756): at com.android.emailcommon.service.AccountServiceProxy.getDeviceId(AccountServiceProxy.java:116)
02-02 14:27:01.468: E/StrictMode(756): at com.android.exchange.ExchangeService.getDeviceId(ExchangeService.java:1249)
02-02 14:27:01.468: E/StrictMode(756): at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1856)
02-02 14:27:01.468: E/StrictMode(756): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
02-02 14:27:01.468: E/StrictMode(756): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
02-02 14:27:01.468: E/StrictMode(756): at android.os.AsyncTask$2.call(AsyncTask.java:287)
02-02 14:27:01.468: E/StrictMode(756): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
02-02 14:27:01.468: E/StrictMode(756): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
02-02 14:27:01.468: E/StrictMode(756): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
02-02 14:27:01.468: E/StrictMode(756): at java.lang.Thread.run(Thread.java:856)
02-02 14:27:01.478: W/ActivityManager(293): Unbind failed: could not find connection for android.os.BinderProxy@40f905a0
02-02 14:27:01.478: E/ActivityThread(756): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d404d0 that was originally bound here
02-02 14:27:01.478: E/ActivityThread(756): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d404d0 that was originally bound here
02-02 14:27:01.478: E/ActivityThread(756): at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
02-02 14:27:01.478: E/ActivityThread(756): at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
02-02 14:27:01.478: E/ActivityThread(756): at android.app.ContextImpl.bindService(ContextImpl.java:1418)
02-02 14:27:01.478: E/ActivityThread(756): at android.app.ContextImpl.bindService(ContextImpl.java:1407)
02-02 14:27:01.478: E/ActivityThread(756): at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
02-02 14:27:01.478: E/ActivityThread(756): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
02-02 14:27:01.478: E/ActivityThread(756): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
02-02 14:27:01.478: E/ActivityThread(756): at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191)
02-02 14:27:01.478: E/ActivityThread(756): at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850)
02-02 14:27:01.478: E/ActivityThread(756): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
02-02 14:27:01.478: E/ActivityThread(756): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
02-02 14:27:01.478: E/ActivityThread(756): at android.os.AsyncTask$2.call(AsyncTask.java:287)
02-02 14:27:01.478: E/ActivityThread(756): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
02-02 14:27:01.478: E/ActivityThread(756): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
02-02 14:27:01.478: E/ActivityThread(756): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
02-02 14:27:01.478: E/ActivityThread(756): at java.lang.Thread.run(Thread.java:856)
02-02 14:27:01.498: E/StrictMode(756): null
02-02 14:27:01.498: E/StrictMode(756): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d404d0 that was originally bound here
02-02 14:27:01.498: E/StrictMode(756): at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
02-02 14:27:01.498: E/StrictMode(756): at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
02-02 14:27:01.498: E/StrictMode(756): at android.app.ContextImpl.bindService(ContextImpl.java:1418)
02-02 14:27:01.498: E/StrictMode(756): at android.app.ContextImpl.bindService(ContextImpl.java:1407)
02-02 14:27:01.498: E/StrictMode(756): at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
02-02 14:27:01.498: E/StrictMode(756): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
02-02 14:27:01.498: E/StrictMode(756): at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
02-02 14:27:01.498: E/StrictMode(756): at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191)
02-02 14:27:01.498: E/StrictMode(756): at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850)
02-02 14:27:01.498: E/StrictMode(756): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
02-02 14:27:01.498: E/StrictMode(756): at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
02-02 14:27:01.498: E/StrictMode(756): at android.os.AsyncTask$2.call(AsyncTask.java:287)
02-02 14:27:01.498: E/StrictMode(756): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
02-02 14:27:01.498: E/StrictMode(756): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
02-02 14:27:01.498: E/StrictMode(756): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
02-02 14:27:01.498: E/StrictMode(756): at java.lang.Thread.run(Thread.java:856)
我的HomeClient.java文件
import java.util.ArrayList;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import android.app.Activity;
import android.app.Dialog;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.Intent;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.FrameLayout;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.Toast;
public class HomeClient extends Activity {
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private 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
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.homeclient);
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)));
// Find People
navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
// Photos
navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
// Communities, Will add a counter here
navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1), true, "22"));
// Pages
navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
// What's hot, We will add a counter here
navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1), true, "50+"));
// Recycle the typed array
navMenuIcons.recycle();
mDrawerList.setOnItemClickListener(new SlideMenuClickListener());
// setting the nav drawer list adapter
adapter = new NavDrawerListAdapter(getApplicationContext(),
navDrawerItems);
mDrawerList.setAdapter(adapter);
// enabling action bar app icon and behaving it as toggle button
getActionBar().setDisplayHomeAsUpEnabled(true);
//getActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, //nav menu toggle icon
R.string.app_name, // nav drawer open - description for accessibility
R.string.app_name // nav drawer close - description for accessibility
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
// calling onPrepareOptionsMenu() to show action bar icons
invalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
// calling onPrepareOptionsMenu() to hide action bar icons
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
// on first time display view for first nav item
displayView(0);
}
}
/**
* Slide menu item click listener
* */
private class SlideMenuClickListener implements
ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// display view for selected nav drawer item
displayView(position);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// toggle nav drawer on selecting action bar app icon/title
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action bar actions click
switch (item.getItemId()) {
case R.id.action_settings:
return true;
default:
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);
}
/**
* Diplaying fragment view for selected nav drawer list item
* */
private void displayView(int position) {
// update the main content by replacing fragments
Fragment fragment = null;
switch (position) {
case 0:
fragment = new HomeFragment();
break;
case 1:
fragment = new FindPeopleFragment();
break;
case 2:
fragment = new PhotosFragment();
break;
case 3:
fragment = new CommunityFragment();
break;
case 4:
fragment = new PagesFragment();
break;
case 5:
fragment = new WhatsHotFragment();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
@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);
}
}
我的Xml文件附加到HomeClient.class在这里
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- Framelayout to display Fragments -->
<FrameLayout
android:id="@+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- Listview to display slider menu -->
<ListView
android:id="@+id/list_slidermenu"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="@color/list_divider"
android:dividerHeight="1dp"
android:listSelector="@drawable/list_selector"
android:background="@color/list_background"/>
</android.support.v4.widget.DrawerLayout>
我的HomeFragment
package com.example.fenixcar;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import android.app.Activity;
import android.app.Dialog;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class HomeFragment extends Fragment{
GoogleMap mMap;
Fragment f;
TextView t;
String address,country,postalcode,city;
public HomeFragment(){}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//Toast.makeText(getApplicationContext(), "Cant connect to google play service", 10).show();
GPSTRacker gps = new GPSTRacker(getActivity());
View rootView = inflater.inflate(R.layout.fragment_home, container, false);
t = (TextView)rootView.findViewById(R.id.text);
MapFragment m = (MapFragment)getActivity().getFragmentManager().findFragmentById(R.id.fragment1);
mMap = m.getMap();
if (gps.canGetLocation()){
double lati = gps.latitude;
double longi = gps.longitude;
address=gps.getAddressLine(getActivity());
country=gps.getCountryName(getActivity());
postalcode=gps.getPostalCode(getActivity());
city=gps.getLocality(getActivity());
MarkerOptions marker = new MarkerOptions().position(new LatLng(lati, longi)).title("You Are Here!/n"+address+" "+city+" "+postalcode+" "+country);
CameraPosition cameraPosition = new CameraPosition.Builder().target(new LatLng(lati, longi)).zoom(6).build();
mMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
// adding marker
mMap.addMarker(marker);
t.setText(" "+address+" "+city+" "+country);
/*city=gps.locality;
country=gps.countryName;
postalcode=gps.postalCode;
ed.setText(""+address+" "+city+" "+postalcode+" "+country);*/
}
else{
gps.showSettingsAlert();
}
return rootView;
}
@Override
public void onDestroyView()
{
try{
MapFragment fragment = (MapFragment) getFragmentManager().findFragmentById(R.id.fragment1);
FragmentTransaction ft = getActivity().getFragmentManager().beginTransaction();
ft.remove(fragment);
ft.commit();
}catch(Exception e){
}
super.onDestroyView();
}
}
答案 0 :(得分：0)
你的onCreateView中你的java第61行有一个NullPointerException（你可以查看代码）。
Caused by: java.lang.NullPointerException
02-02 14:26:40.378: E/AndroidRuntime(1634):
at com.example.fenixcar.HomeFragment.onCreateView(HomeFragment.java:61)
我怀疑在这里：
mTitle = mDrawerTitle = getTitle();
我还怀疑你检查你的getActionBar，如果用if测试，它会告诉你：
说：
if(getActionBar()!=null) {
getActionBar().setDisplayHomeAsUpEnabled(true);
}
else{
Toast.makeText(this, "NO ACTIONBAR!!!!!!!!!!!!!!!!!!", Toast.LENGTH_SHORT).show();
}