无法在android中加载地图_Android_Google Maps_Google Maps Android Api 2

无法在android中加载地图

android google-maps

无法在android中加载地图,android,google-maps,google-maps-android-api-2,Android,Google Maps,Google Maps Android Api 2,我想在我的android应用程序中使用谷歌地图，但每次运行应用程序时都会出现此错误，并且没有显示地图 E/Google地图Android API﹕ 未能加载映射。联系谷歌服务器时出错。这可能是身份验证问题（但可能是由于网络错误）。我在互联网上尝试了各种解决方案，我更改了API_密钥，在运行前卸载了应用程序，在清单中添加了所有可能的标记，但谷歌地图没有显示当我从互联网上下载了一个示例并让它运行时，但当我尝试将活动添加到我的原始应用程序中时，我遇到了相同的错误，没有显示地图我在清单build

我想在我的android应用程序中使用谷歌地图，但每次运行应用程序时都会出现此错误，并且没有显示地图 E/Google地图Android API﹕ 未能加载映射。联系谷歌服务器时出错。这可能是身份验证问题（但可能是由于网络错误）。

我在互联网上尝试了各种解决方案，我更改了API_密钥，在运行前卸载了应用程序，在清单中添加了所有可能的标记，但谷歌地图没有显示

当我从互联网上下载了一个示例并让它运行时，但当我尝试将活动添加到我的原始应用程序中时，我遇到了相同的错误，没有显示地图

我在清单build.gradle和映射活动中附加了代码。我还附上了手机的日志和图片

我希望有人能帮我找到正确的方向

谢谢

//MapsActivity.java
包com.comp.roadmap.app；
导入android.support.v4.app.FragmentActivity；
导入android.os.Bundle；
导入com.google.android.gms.maps.GoogleMap；
导入com.google.android.gms.maps.SupportMapFragment；
导入com.google.android.gms.maps.model.LatLng；
导入com.google.android.gms.maps.model.MarkerOptions；
公共类映射活动扩展了FragmentActivity{
私有GoogleMap mMap；//如果Google Play services APK不可用，则可能为空。
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_映射）；
setupmapifneed（）；
}
@凌驾
受保护的void onResume（）{
super.onResume（）；
setupmapifneed（）；
}
/**
*如果可能的话，设置地图（例如，Google Play services APK已正确启动）
*已安装）并且映射尚未实例化。这将确保
*当{@link#mMap}不为null时，调用{@link#setUpMap（）}一次。
*
*如果未安装{@link SupportMapFragment}（和
*{@link com.google.android.gms.maps.MapView MapView}）将提示用户
*在其设备上安装/更新Google Play services APK。
*

*用户可以按照提示正确返回此FragmentActivity
*安装/更新/启用Google Play服务。因为碎片活动可能不会
*在这一过程中被完全破坏（很可能
*停止或暂停），{@link#onCreate（Bundle）}可能不会被再次调用，因此我们应该调用它
*方法来保证将调用它。
*/
私有void setUpMapIfNeeded（）{
//执行空检查以确认尚未实例化映射。
如果（mMap==null）{
//尝试从SupportMapFragment获取映射。
mMap=（（SupportMapFragment）getSupportFragmentManager（）.findFragmentById（R.id.map））
.getMap（）；
//检查我们是否成功获得地图。
如果（mMap！=null）{
setUpMap（）；
}
}
}
/**
*在这里，我们可以添加标记或线条、添加侦听器或移动摄影机
*在非洲附近加一个标记。
*
*当我们确定{@link#mMap}不是null时，应该只调用一次。
*/
私有void setUpMap（）{
mMap.addMarker（新的MarkerOptions（）.position（新的LatLng（0，0））.title（“Marker”）；
}
}

//activity\u maps.xml

根据您的例外情况：

原因：java.lang.NullPointerException：

尝试在空对象引用上调用虚拟方法“int java.lang.String.length（）” 位于java.io.StringReader。（StringReader.java:47）
在com.comp.roadmap.app.login$CheckLoginWSTask.doInBackground（login.java:330）
在com.comp.roadmap.app.login$CheckLoginWSTask.doInBackground（login.java:295）
在第
doInBackground（login.java:295）
行中，您需要一个null
String
变量的长度
另外，您使用的是哪种API
确保“谷歌地图Android API v2”已启用
以及：
确保以下Android密钥存在：API密钥：AIzaSyDe8mb_u5CJ7D55Z2sohIoy9iT6SP_WM2A

您下载了API并注册了可以使用地图API吗？
如果您使用的是emulator，可能您没有安装Google Play服务，即使您安装了Google Play服务，也要检查您是否有最新版本。
这是空指针异常。.我检查了代码，它通过了该点，并到达下一个活动，即映射活动，并在其中传递onCreate。我认为问题出在这个错误消息“E/Google地图Android API”中﹕ 未能加载地图。联系Google服务器时出错。这可能是身份验证问题（但可能是由于网络错误）。”
//Logcat 03-25 12:18:33.569 1877-1877/com.comp.roadmap.dev I/art﹕ Not late-enabling -Xcheck:jni (already on) 03-25 12:18:33.917 1877-1889/com.comp.roadmap.dev I/art﹕ Background sticky concurrent mark sweep GC freed 1760(106KB) AllocSpace objects, 0(0B) LOS objects, 0% free, 729KB/729KB, paused 2.270ms total 114.494ms 03-25 12:18:34.323 1877-1896/com.comp.roadmap.dev D/OpenGLRenderer﹕ Render dirty regions requested: true 03-25 12:18:34.325 1877-1877/com.comp.roadmap.dev D/﹕ HostConnection::get() New Host Connection established 0xa6d9fa00, tid 1877 03-25 12:18:34.332 1877-1877/com.comp.roadmap.dev D/Atlas﹕ Validating map... 03-25 12:18:34.423 1877-1897/com.comp.roadmap.dev D/Exception﹕ java.net.UnknownHostException: Unable to resolve host "webservice.pollsdb.com": No address associated with hostname --------- beginning of crash 03-25 12:18:34.423 1877-1897/com.comp.roadmap.dev E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #1 Process: com.comp.roadmap.dev, PID: 1877 java.lang.RuntimeException: An error occured while executing doInBackground() at android.os.AsyncTask$3.done(AsyncTask.java:300) at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355) at java.util.concurrent.FutureTask.setException(FutureTask.java:222) at java.util.concurrent.FutureTask.run(FutureTask.java:242) at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) at java.lang.Thread.run(Thread.java:818) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at java.io.StringReader.<init>(StringReader.java:47) at com.comp.roadmap.app.login$CheckLoginWSTask.doInBackground(login.java:330) at com.comp.roadmap.app.login$CheckLoginWSTask.doInBackground(login.java:295) at android.os.AsyncTask$2.call(AsyncTask.java:288) at java.util.concurrent.FutureTask.run(FutureTask.java:237) at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) at java.lang.Thread.run(Thread.java:818) 03-25 12:18:34.428 1877-1896/com.comp.roadmap.dev D/﹕ HostConnection::get() New Host Connection established 0xa6d9fd80, tid 1896 03-25 12:18:34.454 1877-1896/com.comp.roadmap.dev I/OpenGLRenderer﹕ Initialized EGL, version 1.4 03-25 12:18:34.482 1877-1896/com.comp.roadmap.dev D/OpenGLRenderer﹕ Enabling debug mode 0 03-25 12:18:34.502 1877-1896/com.comp.roadmap.dev W/EGL_emulation﹕ eglSurfaceAttrib not implemented 03-25 12:18:34.502 1877-1896/com.comp.roadmap.dev W/OpenGLRenderer﹕ Failed to set EGL_SWAP_BEHAVIOR on surface 0xa6db56e0, error=EGL_SUCCESS 03-25 12:18:34.573 1877-1896/com.comp.roadmap.dev W/EGL_emulation﹕ eglSurfaceAttrib not implemented 03-25 12:18:34.573 1877-1896/com.comp.roadmap.dev W/OpenGLRenderer﹕ Failed to set EGL_SWAP_BEHAVIOR on surface 0xa6db5700, error=EGL_SUCCESS 03-25 12:18:34.734 1877-1889/com.comp.roadmap.dev I/art﹕ Background sticky concurrent mark sweep GC freed 961(70KB) AllocSpace objects, 0(0B) LOS objects, 10% free, 1521KB/1704KB, paused 726us total 123.706ms 03-25 12:18:34.932 1877-1889/com.comp.roadmap.dev I/art﹕ Background partial concurrent mark sweep GC freed 692(36KB) AllocSpace objects, 0(0B) LOS objects, 25% free, 1492KB/2004KB, paused 1.413ms total 112.221ms 03-25 12:18:35.308 1877-1877/com.comp.roadmap.dev I/Choreographer﹕ Skipped 41 frames! The application may be doing too much work on its main thread. 03-25 12:18:35.815 1877-1877/com.comp.roadmap.dev E/WindowManager﹕ android.view.WindowLeaked: Activity com.comp.roadmap.app.login has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{1f1f0dc6 V.E..... R......D 0,0-684,322} that was originally added here at android.view.ViewRootImpl.<init>(ViewRootImpl.java:363) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:261) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69) at android.app.Dialog.show(Dialog.java:298) at com.comp.roadmap.app.login$CheckLoginWSTask.onPreExecute(login.java:447) at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:587) at android.os.AsyncTask.execute(AsyncTask.java:535) at com.comp.roadmap.app.login.LogMeIn(login.java:282) at com.comp.roadmap.app.login.onCreate(login.java:145) at android.app.Activity.performCreate(Activity.java:5937) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360) at android.app.ActivityThread.access$800(ActivityThread.java:144) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5221) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 03-25 12:18:47.249 1877-1897/com.comp.roadmap.dev I/Process﹕ Sending signal. PID: 1877 SIG: 9 03-25 12:18:59.919 2114-2126/com.comp.roadmap.dev I/art﹕ Background sticky concurrent mark sweep GC freed 2967(141KB) AllocSpace objects, 2(32KB) LOS objects, 0% free, 1254KB/1254KB, paused 1.542ms total 158.227ms 03-25 12:19:00.023 2114-2130/com.comp.roadmap.dev D/OpenGLRenderer﹕ Render dirty regions requested: true 03-25 12:19:00.028 2114-2114/com.comp.roadmap.dev D/﹕ HostConnection::get() New Host Connection established 0xa60ed060, tid 2114 03-25 12:19:00.046 2114-2114/com.comp.roadmap.dev D/Atlas﹕ Validating map... 03-25 12:19:00.142 2114-2130/com.comp.roadmap.dev D/﹕ HostConnection::get() New Host Connection established 0xa60a4a60, tid 2130 03-25 12:19:00.160 2114-2130/com.comp.roadmap.dev I/OpenGLRenderer﹕ Initialized EGL, version 1.4 03-25 12:19:00.198 2114-2130/com.comp.roadmap.dev D/OpenGLRenderer﹕ Enabling debug mode 0 03-25 12:19:00.238 2114-2130/com.comp.roadmap.dev W/EGL_emulation﹕ eglSurfaceAttrib not implemented 03-25 12:19:00.238 2114-2130/com.comp.roadmap.dev W/OpenGLRenderer﹕ Failed to set EGL_SWAP_BEHAVIOR on surface 0xa60c5200, error=EGL_SUCCESS 03-25 12:19:00.313 2114-2130/com.comp.roadmap.dev W/EGL_emulation﹕ eglSurfaceAttrib not implemented 03-25 12:19:00.313 2114-2130/com.comp.roadmap.dev W/OpenGLRenderer﹕ Failed to set EGL_SWAP_BEHAVIOR on surface 0xa60c5220, error=EGL_SUCCESS 03-25 12:19:00.653 2114-2114/com.comp.roadmap.dev I/Choreographer﹕ Skipped 34 frames! The application may be doing too much work on its main thread. 03-25 12:19:00.732 2114-2126/com.comp.roadmap.dev I/art﹕ Background sticky concurrent mark sweep GC freed 3217(193KB) AllocSpace objects, 0(0B) LOS objects, 10% free, 1609KB/1801KB, paused 12.515ms total 36.928ms 03-25 12:19:01.149 2114-2130/com.comp.roadmap.dev W/EGL_emulation﹕ eglSurfaceAttrib not implemented 03-25 12:19:01.149 2114-2130/com.comp.roadmap.dev W/OpenGLRenderer﹕ Failed to set EGL_SWAP_BEHAVIOR on surface 0xa60c5200, error=EGL_SUCCESS 03-25 12:19:01.339 2114-2114/com.comp.roadmap.dev I/zzx﹕ Making Creator dynamically 03-25 12:19:01.372 2114-2114/com.comp.roadmap.dev W/ResourcesManager﹕ Asset path '/system/framework/com.android.media.remotedisplay.jar' does not exist or contains no resources. 03-25 12:19:01.372 2114-2114/com.comp.roadmap.dev W/ResourcesManager﹕ Asset path '/system/framework/com.android.location.provider.jar' does not exist or contains no resources. 03-25 12:19:01.448 2114-2114/com.comp.roadmap.dev I/Google Maps Android API﹕ Google Play services client version: 7095000 03-25 12:19:01.499 2114-2126/com.comp.roadmap.dev W/art﹕ Suspending all threads took: 48.763ms 03-25 12:19:01.549 2114-2126/com.comp.roadmap.dev I/art﹕ Background sticky concurrent mark sweep GC freed 126(7KB) AllocSpace objects, 0(0B) LOS objects, 0% free, 2MB/2MB, paused 86.924ms total 168.922ms 03-25 12:19:01.587 2114-2114/com.comp.roadmap.dev I/Google Maps Android API﹕ Google Play services package version: 7097470 03-25 12:19:02.333 2114-2126/com.comp.roadmap.dev I/art﹕ Background sticky concurrent mark sweep GC freed 10597(597KB) AllocSpace objects, 1(16KB) LOS objects, 4% free, 11MB/12MB, paused 3.255ms total 206.012ms 03-25 12:19:02.476 2114-2126/com.comp.roadmap.dev I/art﹕ Background partial concurrent mark sweep GC freed 14992(666KB) AllocSpace objects, 2(1015KB) LOS objects, 15% free, 10MB/12MB, paused 2.601ms total 128.036ms 03-25 12:19:02.605 2114-2138/com.comp.roadmap.dev E/Google Maps Android API﹕ Authorization failure. Please see https://developers.google.com/maps/documentation/android/start for how to correctly set up the map. 03-25 12:19:02.664 2114-2138/com.comp.roadmap.dev E/Google Maps Android API﹕ In the Google Developer Console (https://console.developers.google.com) Ensure that the "Google Maps Android API v2" is enabled. Ensure that the following Android Key exists: API Key: AIzaSyDe8mb_u5CJ7D55Z2sohIoy9iT6SP_WM2A Android Application (<cert_fingerprint>;<package_name>): A9:DC:CA:C8:90:F6:FA:44:1C:8F:5A:BC:EB:71:57:E8:6C:E5:3B:37;com.comp.roadmap.dev 03-25 12:19:02.667 2114-2138/com.comp.roadmap.dev I/Google Maps Android API﹕ Failed to contact Google servers. Another attempt will be made when connectivity is established. 03-25 12:19:02.792 2114-2130/com.comp.roadmap.dev W/EGL_emulation﹕ eglSurfaceAttrib not implemented 03-25 12:19:02.793 2114-2130/com.comp.roadmap.dev W/OpenGLRenderer﹕ Failed to set EGL_SWAP_BEHAVIOR on surface 0xa4e7cf00, error=EGL_SUCCESS 03-25 12:19:04.727 2114-2149/com.comp.roadmap.dev D/﹕ HostConnection::get() New Host Connection established 0x9f4e91f0, tid 2149 03-25 12:19:04.758 2114-2114/com.comp.roadmap.dev I/Choreographer﹕ Skipped 122 frames! The application may be doing too much work on its main thread. 03-25 12:19:05.279 2114-2114/com.comp.roadmap.dev E/WindowManager﹕ android.view.WindowLeaked: Activity com.comp.roadmap.app.login has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{f60576c V.E..... R....... 0,0-684,388} that was originally added here at android.view.ViewRootImpl.<init>(ViewRootImpl.java:363) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:261) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69) at android.app.Dialog.show(Dialog.java:298) at android.app.AlertDialog$Builder.show(AlertDialog.java:987) at com.comp.roadmap.app.login.Alert(login.java:271) at com.comp.roadmap.app.login.access$300(login.java:36) at com.comp.roadmap.app.login$CheckLoginWSTask.onPostExecute(login.java:378) at com.comp.roadmap.app.login$CheckLoginWSTask.onPostExecute(login.java:295) at android.os.AsyncTask.finish(AsyncTask.java:632) at android.os.AsyncTask.access$600(AsyncTask.java:177) at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5221) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 03-25 12:19:17.719 2114-2150/com.comp.roadmap.dev E/Google Maps Android API﹕ Failed to load map. Error contacting Google servers. This is probably an authentication issue (but could be due to network errors).

//Manifest <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.comp.roadmap.app" > <permission android:name="com.comp.roadmap.app.permission.MAPS_RECEIVE" android:protectionLevel="signature"> </permission> <uses-permission android:name="com.comp.roadmap.app.permission.MAPS_RECEIVE" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />  <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-feature android:glEsVersion="0x00020000" android:required="true"></uses-feature> <application android:name=".PubVar" android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:label="@string/app_name" > </activity> <activity android:name=".add_msg" android:label="@string/title_activity_add_msg" > </activity> <activity android:name=".ItemDetail" android:label="@string/title_activity_item_detail" > </activity> <activity android:name=".ListFilter" android:label="@string/title_activity_list_filter" > </activity> <activity android:name=".login" android:label="@string/title_activity_login" > <intent-filter android:label="@string/app_name" > <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".test1" android:label="@string/title_activity_test1" > </activity> <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="AIzaSyDe8mb_u5CJ7D55Z2sohIoy9iT6SP_WM2A" /> <activity android:name=".MapsActivity" android:label="@string/title_activity_maps" > </activity> </application> </manifest>

// build.gradle apply plugin: 'android' android { compileSdkVersion 22 buildToolsVersion '21.1.2' defaultConfig { minSdkVersion 11 targetSdkVersion 19 versionCode 7 versionName "0.1.65" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt' } } productFlavors { dev { applicationId "com.roadmap.schlogger.dev" } prod { applicationId "com.roadmapb.schlogger.app" } } } dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) compile files('libs/ftp4j-1.7.2.jar') compile files('libs/ksoap2-android-assembly-2.5.8-jar-with-dependencies.jar') compile 'com.android.support:appcompat-v7:22.0.0' compile 'com.google.android.gms:play-services:7.0.0' }

//MapsActivity.java package com.comp.roadmap.app; import android.support.v4.app.FragmentActivity; import android.os.Bundle; import com.google.android.gms.maps.GoogleMap; import com.google.android.gms.maps.SupportMapFragment; import com.google.android.gms.maps.model.LatLng; import com.google.android.gms.maps.model.MarkerOptions; public class MapsActivity extends FragmentActivity { private GoogleMap mMap; // Might be null if Google Play services APK is not available. @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_maps); setUpMapIfNeeded(); } @Override protected void onResume() { super.onResume(); setUpMapIfNeeded(); } /** * Sets up the map if it is possible to do so (i.e., the Google Play services APK is correctly * installed) and the map has not already been instantiated.. This will ensure that we only ever * call {@link #setUpMap()} once when {@link #mMap} is not null. * <p/> * If it isn't installed {@link SupportMapFragment} (and * {@link com.google.android.gms.maps.MapView MapView}) will show a prompt for the user to * install/update the Google Play services APK on their device. * <p/> * A user can return to this FragmentActivity after following the prompt and correctly * installing/updating/enabling the Google Play services. Since the FragmentActivity may not * have been completely destroyed during this process (it is likely that it would only be * stopped or paused), {@link #onCreate(Bundle)} may not be called again so we should call this * method in {@link #onResume()} to guarantee that it will be called. */ private void setUpMapIfNeeded() { // Do a null check to confirm that we have not already instantiated the map. if (mMap == null) { // Try to obtain the map from the SupportMapFragment. mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)) .getMap(); // Check if we were successful in obtaining the map. if (mMap != null) { setUpMap(); } } } /** * This is where we can add markers or lines, add listeners or move the camera. In this case, we * just add a marker near Africa. * <p/> * This should only be called once and when we are sure that {@link #mMap} is not null. */ private void setUpMap() { mMap.addMarker(new MarkerOptions().position(new LatLng(0, 0)).title("Marker")); } }

//activity_maps.xml <fragment 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:id="@+id/map" tools:context="com.comp.roadmap.app.MapsActivity" android:name="com.google.android.gms.maps.SupportMapFragment" />