更新到 api 19 后 Google Maps V2 崩溃

【问题标题】：Google Maps V2 crashes after updating to api 19更新到 api 19 后 Google Maps V2 崩溃
【发布时间】：2014-02-24 21:10:00
【问题描述】：

在我更新 sdk 管理器中的某些项目之前，一切正常。现在，每当我尝试运行具有谷歌地图的应用程序时，我的应用程序就会崩溃。

清单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="test.prototype"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="18" />

    <permission
        android:name="test.prototype.MAPS_RECEIVE"
        android:protectionLevel="signature" />

    <uses-permission android:name="test.prototype.permission.MAPS_RECEIVE" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" /> 

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="test.prototype.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <activity android:name="test.prototype.MapDetail" />

        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />

        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="myApiKey" />

         <uses-library android:name="com.google.android.maps" />

    </application>

</manifest>

MainActivity：

public class MainActivity extends FragmentActivity implements LocationListener {

    GoogleMap googleMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

            SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);

            googleMap = fm.getMap();

            googleMap.setMyLocationEnabled(true);

            googleMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);  

            LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);

            locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);                                                                                                             
    }

    @Override
    public void onLocationChanged(Location location) {

        double latitude = location.getLatitude();

        double longitude = location.getLongitude();

        LatLng latLng = new LatLng(latitude, longitude);

        googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));

        googleMap.animateCamera(CameraUpdateFactory.zoomTo(20));

        TextView coordinates = (TextView) findViewById(R.id.coordinates);
        coordinates.setText("Latitude: " +  latitude  + "\n" + "Longitude: "+ longitude );        
    }   

    @Override
    public void onProviderDisabled(String arg0) {

    }

    @Override
    public void onProviderEnabled(String arg0) {

    }

    @Override
    public void onStatusChanged(String arg0, int arg1, Bundle arg2) {

    }

}

xml：

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/coordinates"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <fragment
        android:id="@+id/map"
        android:name="com.google.android.gms.maps.SupportMapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/coordinates" />

</RelativeLayout>

好的，我已经添加了

<meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />

在清单中。清单已更新。

但是还是有错误：

02-25 05:18:31.026: E/AndroidRuntime(6265): FATAL EXCEPTION: main
02-25 05:18:31.026: E/AndroidRuntime(6265): java.lang.RuntimeException: Unable to start activity ComponentInfo{test.prototype/test.prototype.MainActivity}: java.lang.NullPointerException
02-25 05:18:31.026: E/AndroidRuntime(6265):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2343)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2395)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at android.app.ActivityThread.access$600(ActivityThread.java:162)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1364)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at android.os.Handler.dispatchMessage(Handler.java:107)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at android.os.Looper.loop(Looper.java:194)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at android.app.ActivityThread.main(ActivityThread.java:5371)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at java.lang.reflect.Method.invokeNative(Native Method)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at java.lang.reflect.Method.invoke(Method.java:525)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at dalvik.system.NativeStart.main(Native Method)
02-25 05:18:31.026: E/AndroidRuntime(6265): Caused by: java.lang.NullPointerException
02-25 05:18:31.026: E/AndroidRuntime(6265):     at test.prototype.MainActivity.onCreate(MainActivity.java:28)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at android.app.Activity.performCreate(Activity.java:5122)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1081)
02-25 05:18:31.026: E/AndroidRuntime(6265):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2307)
02-25 05:18:31.026: E/AndroidRuntime(6265):     ... 11 more

LogCat 在我的其他设备上运行后更新：

02-25 05:38:40.462: E/AndroidRuntime(4342): FATAL EXCEPTION: main
02-25 05:38:40.462: E/AndroidRuntime(4342): java.lang.RuntimeException: Unable to start activity ComponentInfo{test.prototype/test.prototype.MainActivity}: android.view.InflateException: Binary XML file line #14: Error inflating class fragment
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2372)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2424)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.app.ActivityThread.access$600(ActivityThread.java:162)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1364)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.os.Handler.dispatchMessage(Handler.java:107)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.os.Looper.loop(Looper.java:194)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.app.ActivityThread.main(ActivityThread.java:5400)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at java.lang.reflect.Method.invokeNative(Native Method)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at java.lang.reflect.Method.invoke(Method.java:525)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:837)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:604)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at dalvik.system.NativeStart.main(Native Method)
02-25 05:38:40.462: E/AndroidRuntime(4342): Caused by: android.view.InflateException: Binary XML file line #14: Error inflating class fragment
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:297)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.app.Activity.setContentView(Activity.java:1881)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at test.prototype.MainActivity.onCreate(MainActivity.java:22)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.app.Activity.performCreate(Activity.java:5122)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1081)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2336)
02-25 05:38:40.462: E/AndroidRuntime(4342):     ... 11 more
02-25 05:38:40.462: E/AndroidRuntime(4342): Caused by: java.lang.SecurityException: The Maps API requires the additional following permissions to be set in the AndroidManifest.xml to ensure a correct behavior:
02-25 05:38:40.462: E/AndroidRuntime(4342): <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
02-25 05:38:40.462: E/AndroidRuntime(4342): <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
02-25 05:38:40.462: E/AndroidRuntime(4342):     at maps.e.ch.a(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at maps.e.ay.a(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at maps.e.ay.a(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at maps.e.al.a(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at maps.e.bg.a(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at maps.e.bf.a(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at eio.onTransact(SourceFile:107)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.os.Binder.transact(Binder.java:310)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at com.google.android.gms.maps.internal.IMapFragmentDelegate$a$a.onCreateView(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at com.google.android.gms.maps.SupportMapFragment$a.onCreateView(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at com.google.android.gms.dynamic.a$4.b(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at com.google.android.gms.dynamic.a.a(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at com.google.android.gms.dynamic.a.onCreateView(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at com.google.android.gms.maps.SupportMapFragment.onCreateView(Unknown Source)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.support.v4.app.Fragment.performCreateView(Fragment.java:1500)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:900)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1082)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1184)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:291)
02-25 05:38:40.462: E/AndroidRuntime(4342):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:676)
02-25 05:38:40.462: E/AndroidRuntime(4342):     ... 21 more

【问题讨论】：

  • 第 28 行是哪一行？这就是你 NullPointerException 所在的地方。
  • googleMap.setMyLocationEnabled(true);

标签： java android eclipse google-maps


【解决方案1】：

每SupportMapFragment.getMap()，它返回

null 如果片段的视图尚未准备好。如果片段生命周期尚未通过 onCreateView(LayoutInflater, ViewGroup, Bundle) 可能会发生这种情况。如果 Google Play 服务不可用，也会发生这种情况。如果之后 Google Play 服务可用，并且 Fragment 已通过 onCreateView(LayoutInflater, ViewGroup, Bundle)，再次调用该方法将初始化并返回 GoogleMap。

考虑configuring your initial state via XML attributes 并将您的getMap().setMyLocationEnabled(true) 移动到您的onLocationChanged 以确保您的地图已经布局和配置，而不是在onCreate 中进行

【讨论】：

  • 我尝试了你所说的并在我的其他设备上运行它，但它仍然崩溃。我会发布新的 LogCat。
  • 看起来您缺少 Manifest 权限。
  • 呵呵。谢谢。我已经添加了 LogCa 上所说的两个缺少的权限，它现在可以工作了:)
  • 好的。而且我认为问题出在我的其他设备上。当我在那里运行它时它崩溃了。但它在我的其他设备上运行。
  • 您可以考虑执行ensuring Google Play Services is available 上的步骤，因为getMap() 在这些情况下也会返回null。
猜你喜欢
  • 1970-01-01
  • 1970-01-01
  • 2013-12-14
  • 1970-01-01
  • 2013-10-03
  • 2012-11-23
  • 1970-01-01
  • 1970-01-01
相关资源
最近更新 更多
热门标签
Java Python linux javascript Mysql C# Docker 算法 前端 SpringBoot Redis Vue spring 设计模式 .net core .net kubernetes c++ 数据库 数据结构 大数据 js 机器学习 微服务 Android Go 程序员 面试 JVM ASP.net core 云原生 人工智能 后端 PHP git CSS golang k8s Nginx Django mybatis 深度学习 多线程 React 架构 devops 爬虫 云计算 Spring Boot LeetCode