Google Maps Android API v2入門

時間 2019-11-07

標籤 google maps android api v2 入門欄目 Google 简体版

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概述

建立一個新的使用了Google Maps Android API v2的Android應用須要許多個步驟。這一節中所概述的其中的許多步驟只是須要必須執行一次而已，但有些信息則是將來應用開發方便的參考。給一個Android應用程序添加一個地圖的整體過程以下： html

安裝Android SDK.
下載並配置Google Play services SDK，其中包含了Google Maps Android API。若是你使用了商業Google Maps Mobile SDK，則你必須下載並配置商業Google Maps Mobile SDK靜態庫
獲取一個API key。爲了作到這一點，你須要在Google APIs Console註冊一個工程，併爲你的app獲取一個簽名證書。
在你的應用程序的manifest中添加所須要的設置。
給你的應用程序添加一個map。
發佈你的應用程序。

你也可能想要經過查看示例代碼來開始，示例代碼包含在Google Play services SDK中。 java

安裝Android SDK

這是一個先決條件，你須要安裝Android SDK。請參考獲取Android SDK。 android

安裝並配置Google Play services SDK

你將須要爲你的app建立一個Android工程，來完成這個小節的那些步驟。若是你尚未建立一個Android應用，你能夠按照指南來建立一個"hello world" app。請參考建立一個Android工程。 web

Google Maps Android API v2是做爲Google Play services SDK的一部分來分發的。你能夠經過Android SDK Manager來下載 Google Play services SDK。算法

更詳細的說明，請參考Google Play services文檔。這裏是你須要執行的步驟的一個總結： shell

安裝Google Play services SDK。
添加Google Play services做爲一個Android library project。
在你app的project中引用Google Play services

添加Google Play services版本到你app的manifest

編輯你的應用程序的AndroidManifest.xml文件，並在<application>元素內添加以下的聲明。這會嵌入編譯app所使用的Google Play services的版本。編程

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

獲取一個Android認證證書及Google Maps API key

注意：Google Maps Android API v2使用了一個新的管理key的系統。來自於一個Google Maps Android v1應用程序的現存的key，一般被稱爲MapView，在使用v2 API時將是無效的。 windows

爲了經過Maps API訪問Google Maps服務器，你不得不給你的應用程序添加一個Maps API key 。這個key是免費的，你能夠在你任何調用了Maps API的應用程序中使用，並且它支持無限多的用戶。你能夠經過提供你的應用程序的簽名證書及它的包名，從Google APIs Console，獲取一個Maps API key。經過給你的應用程序的AndroidManifest.xml文件添加一個元素來爲你的應用添加key。 api

理解註冊你的應用程序及獲取一個key的過程，還須要一些關於Android應用的發佈過程和要求的知識。總結一下，全部的Andriod應用都必須經過一個數字證書來簽名，而你持有着私有的key。因爲數字證書是惟一的，它們提供了一種簡單的方式來惟一的識別你的app。這對於在系統中追蹤你的應用程序頗有用，好比像Google Play Store，對於追蹤你的應用程序使用的resource，好比Google Maps服務器，也頗有用。瀏覽器

注意：參考Android指南認證你的應用程序來獲取更多關於數字認證的信息。

Maps API keys是與特定的證書/包對關聯的，而不是與用戶或應用程序。每一個證書你只須要一個key便可，而不管你的一個應用程序有多少用戶。使用了相同的證書的應用程序可使用相同API key。然而，建議的方式是爲你的每個應用程序經過一個不一樣的證書獲取一個不一樣的key來認證。

爲你的應用程序獲取一個key須要幾個步驟。這些步驟列出以下，並將在接下來的小節中詳細描述。

提取關於你的應用程序的證書的信息。
在Google APIs Console中註冊一個工程，併爲該工程添加Maps API做爲一個服務。
請求一個或多個keys。
爲你的應用程序添加你的key並開始開發。

注意： 商業Google Maps Mobile SDK的用戶必須額外的爲他們的API工程啓用 SDK。

顯示你的app的證書信息

Maps API key是基於你的應用程序數字證書的一個short form的，被稱爲它的SHA-1指紋。這個指紋是由通用的SHA-1哈希算法產生的一個惟一的文本串。因爲這個指紋自己是惟一的，因此Google Maps使用它來做爲識別你的應用程序的一種方式。

爲了給你的證書顯示SHA-1指紋，首先要確保你正在使用正確的證書。你可能有兩個證書：

Debug證書：當你從命令行執行一個"debug"編譯時，或當你在Eclipse中編譯並執行一個工程而沒有將它導出爲一個released應用時，Android SDK工具自動地產生這個證書。只有當你在測試時才讓你的app使用這個證書；不要試圖發佈一個用debug認證簽名的app。在Android Developer文檔中的Signing in Debug Mode一節中有對於debug證書更詳細的描述。
Release證書：當你經過ant程序或Eclipse執行一個「release」編譯時，Android SDK工具會產生這種證書。你也可使用keytool程序產生這種證書。當你已經爲向全世界發佈你的應用程序作好了準備時，使用這種證書。

你可使用keytool程序加-v參數來顯示一個證書的SHA-1指紋。更多關於Keytool的信息，請參考文檔http://docs.oracle.com/javase/6/docs/technotes/tools/windows/keytool.html。

展開下面的小節，來了解關於如何顯示你的debug或release證書的詳細的指導。

顯示debug證書指紋

定位你的debug keystore文件。文件名爲debug.keystore，在你第一次編譯你的工程時建立。默認地，它與你的Android Virtual Device (AVD)文件存儲在相同的目錄下：
- OS X and Linux: ~/.android/
- Windows Vista and Windows 7: C:\Users\your_user_name\.android\
若是你同時在使用ADT與Eclipse，而且你不肯定你的debug keystone位置在哪兒，你能夠選擇Windows > Prefs > Android > Build來查看完整的路徑，你能夠把這個路徑粘貼到一個文件瀏覽器來定位包含了keystore的目錄。

列出SHA-1指紋。

對於Linux或OS X，打開一個終端窗口並鍵入下列內容：

keytool -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android

對於Windows Vista和Windows 7，執行：

keytool -list -v -keystore "%USERPROFILE%\.android\debug.keystore" -alias androiddebugkey -storepass android -keypass android

你應當看到與下面相似的輸出：

Alias name: androiddebugkey
 Creation date: Jan 01, 2013
 Entry type: PrivateKeyEntry
 Certificate chain length: 1
 Certificate[1]:
 Owner: CN=Android Debug, O=Android, C=US
 Issuer: CN=Android Debug, O=Android, C=US
 Serial number: 4aa9b300
 Valid from: Mon Jan 01 08:04:04 UTC 2013 until: Mon Jan 01 18:04:04 PST 2033
 Certificate fingerprints:
      MD5:  AE:9F:95:D0:A6:86:89:BC:A8:70:BA:34:FF:6A:AC:F9
      SHA1: BB:0D:AC:74:D3:21:E1:43:07:71:9B:62:90:AF:A1:66:6E:44:5D:75
      Signature algorithm name: SHA1withRSA
      Version: 3

以SHA1開頭的那一行包含了證書的SHA-1指紋。指紋是由冒號隔開的20對兩位16進制數的序列。

顯示release證書指紋

定位你的release證書keystore文件。對於release keystore則沒有默認的位置或名字。若是你不在爲你的應用程序編譯release版時指定一個，則編譯出來的.apk將是未簽名的，而且你將不得不在你能夠發佈它以前簽名。對於release證書，爲keystore和證書，你也須要證書的別名和密碼。你能夠經過輸入下面內容來列出keystore中全部的keys的別名：
```
keytool -list -keystoreyour_keystore_name
```
將your_keystore_name用完整的路徑和keystore的名字來替換，包含.keystore擴展名。你將會看到keystore的密碼的提示。你但你鍵入了它，keytool將顯示出keystore中全部的別名。
在一個終端或命令提示符中鍵入下面內容：
```
keytool -list -v -keystoreyour_keystore_name-aliasyour_alias_name
```
將your_keystore_name 用完整的路徑和keystore的名字來替換，包含.keystore擴展名。將your_alias_name用建立它時分配給證書的別名來替換。

注意：爲了保護你的keystore和key，不要在命令行鍵入storepass或keypass參數，除非你對你的電腦的安全性很是自信。好比，在一臺公共的電腦上，某些人可能會看到你的終端窗口的歷史，或列出正在運行的進程，獲取密碼，而後具備對你的簽名證書的寫權限。這將容許那些人修改或用他們本身的應用來替換你的應用。
你應當看到與下面內容相似的輸出：

Alias name: <alias_name>
 Creation date: Feb 02, 2013
 Entry type: PrivateKeyEntry
 Certificate chain length: 1
 Certificate[1]:
 Owner: CN=Android Debug, O=Android, C=US
 Issuer: CN=Android Debug, O=Android, C=US
 Serial number: 4cc9b300
 Valid from: Mon Feb 02 08:01:04 UTC 2013 until: Mon Feb 02 18:05:04 PST 2033
 Certificate fingerprints:
      MD5:  AE:9F:95:D0:A6:86:89:BC:A8:70:BA:34:FF:6B:AC:F9
      SHA1: BB:0D:AC:74:D3:21:E1:43:67:71:9B:62:90:AF:A1:66:6E:44:5D:75
      Signature algorithm name: SHA1withRSA
      Version: 3

以 SHA1開頭的那一行包含了證書的 SHA-1指紋。指紋是由冒號隔開的20對兩位16進制數的序列。

在Google APIs Console中建立一個API工程

遵循以下的步驟，在Google APIs Console中爲你的應用程序建立或修改一個工程，併爲Maps API執行註冊。

在一個瀏覽器中，導航到Google APIs Console。
- 若是你以前沒有使用過Google APIs Console，你會獲得提示，來建立一個工程，用於追蹤你對於Google Maps Android API的使用。點擊Create Project；Console建立一個稱爲API Project的新工程。在下一頁，這個名字顯示在左上角。要重命名或管理該工程，則點擊它的名字。
- 若是你已經在使用Google APIs Console了，你將當即看到一個你的已有工程和可用服務的列表。爲Google Maps Android API使用一個新的工程仍然是一個好主意，於是選擇左上角的工程名並點擊Create。
你應該在主窗口看到一個APIs和服務的列表。若是沒有，則在左邊的導航欄選擇Services。
頁面中間所顯示的服務的列表中，向下滾動直到看見Google Maps Android API v2。這一項的右邊點擊開關指示符來使它爲on。
這顯示了Google Maps Android API Terms of Service。若是你贊成服務條款，則點擊服務條款下方的checkbox，而後點擊Accept。這將使你返回到APIs和服務的列表。

獲取一個Google Maps API key

若是你的應用程序已經完成了對Google Maps Android API v2服務的註冊，則你能夠請求一個API key了。每一個工程註冊多於一個的key也是可能的。

在Google APIs Console中導航到你的工程。
在左邊的導航條中，點擊API Access。
在結果頁中，點擊Create New Android Key...。
在結果對話框中，鍵入SHA-1指紋，而後是一個分號，而後是你的應用程序的包名。好比：
```
BB:0D:AC:74:D3:21:E1:43:67:71:9B:62:91:AF:A1:66:6E:44:5D:75;com.example.android.mapexample 
```
Google APIs Console經過顯示Key for Android apps (with certificates)，並後跟一個四十字符的API key來做出反應，好比：
```
AIzaSyBdVl-cTICSwYKrZ95SuvNw7dbMuDt1KG0 
```

給你的應用程序添加API key

遵循下面的步驟來在你的應用程序的manifest中包含API key，包含在AndroidManifest.xml文件中。Maps API從這兒讀取key值並將它傳給Google Maps服務器，以確認你具備對Google Maps數據的訪問權限。

1. 在AndroidManifest.xml中，添加下面的元素做爲<application>元素的一個子元素，經過在閉合標籤</application>以前插入它來實現：

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

用你的API key來替換API_KEY。這個元素將鍵 com.google.android.maps.v2.API_KEY的值設爲API_KEY並使得API key對於你的應用程序中的任何MapFragment都是可見的。

2. 保存AndroidManifest.xml，而後從新編譯你的應用程序

在應用的manifest中指定app設置

一個使用了Google Maps Android API的android應用程序應該在它的manifest文件中指定以下的設置，AndroidManifest.xml：

一個對Google Play服務版本的引用。若是你聽從了本頁上面的步驟而到了這個位置，你已經向你的應用程序的manifest添加了所須要的聲明。
應用程序的Maps API key。這個key確認你已經經過Google APIs Console註冊了Google Maps服務。若是你聽從了本頁上面的步驟而到了這個位置，你已經向你的應用程序的manifest添加了API key。
賦予應用程序對Android系統功能及對Google Maps服務器訪問權限的Permissions。參考下面的指導來添加這些設置。
(建議)應用程序請求OpenGL ES版本2的通知。外部服務能夠探測到這個通知，並據此行動。好比，Google Play Store將不會在那些沒有OpenGL ES版本2的設備上顯示你的應用程序。參考下面的指導來添加這項設置。

指定permissions

指定你的應用程序須要的permissions，經過添加<uses-permission>元素做爲<manifest>元素的子元素來實現。語法爲：

<uses-permission android:name="permission_name"/>

好比，請求Internet permission，添加：

<uses-permission android:name="android.permission.INTERNET"/>

除了你的應用程序其餘部分須要的權限，你必須添加以下的權限以使用Google Maps Android API：

android.permission.INTERNET 被API使用，來從Google Maps服務器下載地圖拼貼。
android.permission.ACCESS_NETWORK_STATE 容許API檢查鏈接狀態以決定數據是否能夠被下載。
com.google.android.providers.gsf.permission.READ_GSERVICES 容許API訪問Google基於web的服務。
android.permission.WRITE_EXTERNAL_STORAGE容許API在設備的外部存儲區域緩存地圖拼貼數據。

下面的permissions是建議添加的，但若是你的應用程序不訪問用戶的當前位置，以編程的方式，或啓用My Location層，則能夠忽略，

android.permission.ACCESS_COARSE_LOCATION 容許API使用WiFi或移動蜂窩數據(或同時)來決定設備的位置。
android.permission.ACCESS_FINE_LOCATION 容許API使用全球定位系統(GPS)來在一個很是小的區域內決定設備的位置。

<uses-permission android:name="android.permission.INTERNET"/>
<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"/>
<!-- The following two permissions are not required to use
     Google Maps Android API v2, but are recommended. -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

指定對OpenGL ES版本2的請求

Google Maps Android API使用OpenGL ES版本2來渲染地圖。若是沒有安裝OpenGL ES版本2，你的地圖將不會出現。咱們建議你在AndroidManifest.xml中添加以下的<uses-feature>元素，做爲<manifest>元素的一個子元素：

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

這個元素通知須要的外部服務。特別地，它具備阻止Google Play Store將你的應用程序顯示在不支持OpenGL ES版本2的設備上的效果。

添加一個地圖

測試你的應用程序是否被正確配置的最簡單的方式是添加一個簡單的地圖。你將不得不修改兩個文件：定義了app的layout的XML文件，及main activity Java文件。

請注意下面的代碼只在測試目標平臺爲Android API 12或更新的應用程序的設置時有用。這段代碼不該該被用於一個產品應用程序中。如何添加更健壯的代碼的例子將貫穿於這份指南，並出如今示例代碼中。

1. 在app的layout XML文件中添加以下的fragment。若是你使用Eclipse中的Android Developer Tools (ADT)包建立了一個‘hello world’ app，則這個文件爲res/layout/activity-main.xml。將那個文件中全部的內容替換爲下面的代碼：

<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
          android:id="@+id/map"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:name="com.google.android.gms.maps.MapFragment"/>

2. 在 MainActivity.java中添加以下的代碼：

package com.example.mapdemo;

import android.app.Activity;
import android.os.Bundle;

public class MainActivity extends Activity {

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

3. 編譯並運行你的應用程序。你應該能看到一個地圖。若是你沒有看到一個地圖，請確認你已經完成了本頁中所描述的全部的步驟。

實踐

1. 首先，用eclipse，以默認的方式建立一個hello world app，並將它的main layout文件的內容替換爲前述只有一個MapFragment的layout，而後便執行應用程序。不出所料，這個app是沒法運行起來的，會有以下的一個exception拋出來：

11-30 16:31:59.341: D/dalvikvm(6202): Late-enabling CheckJNI
11-30 16:31:59.491: E/ActivityThread(6202): Failed to inflate
11-30 16:31:59.491: E/ActivityThread(6202): android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
11-30 16:31:59.491: E/ActivityThread(6202): 	at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:320)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.Activity.setContentView(Activity.java:1895)
11-30 16:31:59.491: E/ActivityThread(6202): 	at com.hanpfei.mymapexample.MainActivity.onCreate(MainActivity.java:12)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.Activity.performCreate(Activity.java:5133)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.ActivityThread.access$600(ActivityThread.java:153)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.os.Looper.loop(Looper.java:137)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.ActivityThread.main(ActivityThread.java:5289)
11-30 16:31:59.491: E/ActivityThread(6202): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-30 16:31:59.491: E/ActivityThread(6202): 	at java.lang.reflect.Method.invoke(Method.java:525)
11-30 16:31:59.491: E/ActivityThread(6202): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
11-30 16:31:59.491: E/ActivityThread(6202): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
11-30 16:31:59.491: E/ActivityThread(6202): 	at dalvik.system.NativeStart.main(Native Method)
11-30 16:31:59.491: E/ActivityThread(6202): Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.MapFragment: make sure class name exists, is public, and has an empty constructor that is public
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.Fragment.instantiate(Fragment.java:592)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.Fragment.instantiate(Fragment.java:560)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.Activity.onCreateView(Activity.java:4738)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
11-30 16:31:59.491: E/ActivityThread(6202): 	... 20 more
11-30 16:31:59.491: E/ActivityThread(6202): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.maps.MapFragment" on path: DexPathList[[zip file "/data/app/com.hanpfei.mymapexample-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.hanpfei.mymapexample-1, /vendor/lib, /system/lib]]
11-30 16:31:59.491: E/ActivityThread(6202): 	at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:53)
11-30 16:31:59.491: E/ActivityThread(6202): 	at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
11-30 16:31:59.491: E/ActivityThread(6202): 	at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
11-30 16:31:59.491: E/ActivityThread(6202): 	at android.app.Fragment.instantiate(Fragment.java:582)
11-30 16:31:59.491: E/ActivityThread(6202): 	... 23 more
11-30 16:31:59.491: D/AndroidRuntime(6202): Shutting down VM
11-30 16:31:59.491: W/dalvikvm(6202): threadid=1: thread exiting with uncaught exception (group=0x415367c0)
11-30 16:31:59.491: E/AndroidRuntime(6202): FATAL EXCEPTION: main
11-30 16:31:59.491: E/AndroidRuntime(6202): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.hanpfei.mymapexample/com.hanpfei.mymapexample.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2339)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.ActivityThread.access$600(ActivityThread.java:153)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.os.Looper.loop(Looper.java:137)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.ActivityThread.main(ActivityThread.java:5289)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at java.lang.reflect.Method.invoke(Method.java:525)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at dalvik.system.NativeStart.main(Native Method)
11-30 16:31:59.491: E/AndroidRuntime(6202): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:320)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.Activity.setContentView(Activity.java:1895)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at com.hanpfei.mymapexample.MainActivity.onCreate(MainActivity.java:12)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.Activity.performCreate(Activity.java:5133)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	... 11 more
11-30 16:31:59.491: E/AndroidRuntime(6202): Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.MapFragment: make sure class name exists, is public, and has an empty constructor that is public
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.Fragment.instantiate(Fragment.java:592)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.Fragment.instantiate(Fragment.java:560)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.Activity.onCreateView(Activity.java:4738)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	... 20 more
11-30 16:31:59.491: E/AndroidRuntime(6202): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.maps.MapFragment" on path: DexPathList[[zip file "/data/app/com.hanpfei.mymapexample-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.hanpfei.mymapexample-1, /vendor/lib, /system/lib]]
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:53)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	at android.app.Fragment.instantiate(Fragment.java:582)
11-30 16:31:59.491: E/AndroidRuntime(6202): 	... 23 more

2. 總之意思就是說，找不到com.google.android.gms.maps.MapFragment這個類。解決這個問題，須要把Google Play services的類庫加載進來：

在Eclipse裏面選擇：File > Import > Android > Existing Android Code Into Workspace而後點擊Next。

以後Browse..., 找到路徑下的<android-sdk-folder>/extras/google/google_play_services/libproject/google-play-services_lib, 而後選擇Finish。（若是沒有這個庫，請在Android SDK Manager更新，在底端的Extras裏面更新Google Play services便可）。

而後是添加對這個庫的引用：

在本身的項目上右鍵，選Properties，左邊選Android，而後在下面的Library裏面Add剛纔的google-play-services_lib。

3. 這個時候，應用程序是連編譯都編譯不過。解決方法就是要先把上一步建立出來的那個google-play-services_lib的project編譯一下。OK，能夠編譯了，那就再一次編譯執行。此次又遇到了另外的一個exception：

11-30 17:02:56.262: E/ActivityThread(9967): Failed to inflate
11-30 17:02:56.262: E/ActivityThread(9967): android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:320)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.app.Activity.setContentView(Activity.java:1895)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.hanpfei.mymapexample.MainActivity.onCreate(MainActivity.java:12)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.app.Activity.performCreate(Activity.java:5133)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.app.ActivityThread.access$600(ActivityThread.java:153)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.os.Looper.loop(Looper.java:137)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.app.ActivityThread.main(ActivityThread.java:5289)
11-30 17:02:56.262: E/ActivityThread(9967): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-30 17:02:56.262: E/ActivityThread(9967): 	at java.lang.reflect.Method.invoke(Method.java:525)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
11-30 17:02:56.262: E/ActivityThread(9967): 	at dalvik.system.NativeStart.main(Native Method)
11-30 17:02:56.262: E/ActivityThread(9967): Caused by: java.lang.IllegalStateException: A required meta-data tag in your app's AndroidManifest.xml does not exist.  You must have the following declaration within the <application> element:     <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.google.android.gms.common.GooglePlayServicesUtil.n(Unknown Source)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.google.android.gms.common.GooglePlayServicesUtil.isGooglePlayServicesAvailable(Unknown Source)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.google.android.gms.maps.internal.q.v(Unknown Source)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.google.android.gms.maps.internal.q.u(Unknown Source)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.google.android.gms.maps.MapsInitializer.initialize(Unknown Source)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.google.android.gms.maps.MapFragment$b.cE(Unknown Source)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.google.android.gms.maps.MapFragment$b.a(Unknown Source)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.google.android.gms.dynamic.a.a(Unknown Source)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.google.android.gms.dynamic.a.onInflate(Unknown Source)
11-30 17:02:56.262: E/ActivityThread(9967): 	at com.google.android.gms.maps.MapFragment.onInflate(Unknown Source)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.app.Activity.onCreateView(Activity.java:4745)
11-30 17:02:56.262: E/ActivityThread(9967): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
11-30 17:02:56.262: E/ActivityThread(9967): 	... 20 more
11-30 17:02:56.262: D/AndroidRuntime(9967): Shutting down VM
11-30 17:02:56.262: W/dalvikvm(9967): threadid=1: thread exiting with uncaught exception (group=0x415367c0)
11-30 17:02:56.262: E/AndroidRuntime(9967): FATAL EXCEPTION: main
11-30 17:02:56.262: E/AndroidRuntime(9967): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.hanpfei.mymapexample/com.hanpfei.mymapexample.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2339)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.app.ActivityThread.access$600(ActivityThread.java:153)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.os.Looper.loop(Looper.java:137)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.app.ActivityThread.main(ActivityThread.java:5289)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at java.lang.reflect.Method.invoke(Method.java:525)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at dalvik.system.NativeStart.main(Native Method)
11-30 17:02:56.262: E/AndroidRuntime(9967): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:320)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.app.Activity.setContentView(Activity.java:1895)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.hanpfei.mymapexample.MainActivity.onCreate(MainActivity.java:12)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.app.Activity.performCreate(Activity.java:5133)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	... 11 more
11-30 17:02:56.262: E/AndroidRuntime(9967): Caused by: java.lang.IllegalStateException: A required meta-data tag in your app's AndroidManifest.xml does not exist.  You must have the following declaration within the <application> element:     <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.google.android.gms.common.GooglePlayServicesUtil.n(Unknown Source)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.google.android.gms.common.GooglePlayServicesUtil.isGooglePlayServicesAvailable(Unknown Source)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.google.android.gms.maps.internal.q.v(Unknown Source)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.google.android.gms.maps.internal.q.u(Unknown Source)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.google.android.gms.maps.MapsInitializer.initialize(Unknown Source)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.google.android.gms.maps.MapFragment$b.cE(Unknown Source)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.google.android.gms.maps.MapFragment$b.a(Unknown Source)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.google.android.gms.dynamic.a.a(Unknown Source)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.google.android.gms.dynamic.a.onInflate(Unknown Source)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at com.google.android.gms.maps.MapFragment.onInflate(Unknown Source)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.app.Activity.onCreateView(Activity.java:4745)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
11-30 17:02:56.262: E/AndroidRuntime(9967): 	... 20 more

4. 這個exception呢，大致意思就是說，在app的AndroidManifest.xml文件中少加入了一個<meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />標籤。OK，咱們遵守前面文檔的說明，把這個元素加入到AndroidManifest.xml文件就是了，能夠參考文檔前面的添加Google Play services版本到你app的manifest部分，把那兩行code直接複製粘貼便可。不過咱們卻又遭遇了另外一個exception：

11-30 17:09:34.261: E/ActivityThread(10763): Failed to inflate
11-30 17:09:34.261: E/ActivityThread(10763): android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
11-30 17:09:34.261: E/ActivityThread(10763): 	at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:320)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.Activity.setContentView(Activity.java:1895)
11-30 17:09:34.261: E/ActivityThread(10763): 	at com.hanpfei.mymapexample.MainActivity.onCreate(MainActivity.java:12)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.Activity.performCreate(Activity.java:5133)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.ActivityThread.access$600(ActivityThread.java:153)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.os.Looper.loop(Looper.java:137)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.ActivityThread.main(ActivityThread.java:5289)
11-30 17:09:34.261: E/ActivityThread(10763): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-30 17:09:34.261: E/ActivityThread(10763): 	at java.lang.reflect.Method.invoke(Method.java:525)
11-30 17:09:34.261: E/ActivityThread(10763): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
11-30 17:09:34.261: E/ActivityThread(10763): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
11-30 17:09:34.261: E/ActivityThread(10763): 	at dalvik.system.NativeStart.main(Native Method)
11-30 17:09:34.261: E/ActivityThread(10763): Caused by: java.lang.SecurityException: The Maps API requires the additional following permissions to be set in the AndroidManifest.xml to ensure a correct behavior:
11-30 17:09:34.261: E/ActivityThread(10763): <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
11-30 17:09:34.261: E/ActivityThread(10763): <uses-permission android:name="android.permission.INTERNET"/>
11-30 17:09:34.261: E/ActivityThread(10763): <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
11-30 17:09:34.261: E/ActivityThread(10763): <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
11-30 17:09:34.261: E/ActivityThread(10763): 	at maps.af.cf.a(Unknown Source)
11-30 17:09:34.261: E/ActivityThread(10763): 	at maps.af.ay.a(Unknown Source)
11-30 17:09:34.261: E/ActivityThread(10763): 	at maps.af.al.a(Unknown Source)
11-30 17:09:34.261: E/ActivityThread(10763): 	at maps.af.be.a(Unknown Source)
11-30 17:09:34.261: E/ActivityThread(10763): 	at maps.af.bd.a(Unknown Source)
11-30 17:09:34.261: E/ActivityThread(10763): 	at cmj.onTransact(SourceFile:107)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.os.Binder.transact(Binder.java:347)
11-30 17:09:34.261: E/ActivityThread(10763): 	at com.google.android.gms.maps.internal.IMapFragmentDelegate$a$a.onCreateView(Unknown Source)
11-30 17:09:34.261: E/ActivityThread(10763): 	at com.google.android.gms.maps.MapFragment$a.onCreateView(Unknown Source)
11-30 17:09:34.261: E/ActivityThread(10763): 	at com.google.android.gms.dynamic.a$4.b(Unknown Source)
11-30 17:09:34.261: E/ActivityThread(10763): 	at com.google.android.gms.dynamic.a.a(Unknown Source)
11-30 17:09:34.261: E/ActivityThread(10763): 	at com.google.android.gms.dynamic.a.onCreateView(Unknown Source)
11-30 17:09:34.261: E/ActivityThread(10763): 	at com.google.android.gms.maps.MapFragment.onCreateView(Unknown Source)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.Fragment.performCreateView(Fragment.java:1695)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:861)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1035)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.FragmentManagerImpl.addFragment(FragmentManager.java:1137)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.app.Activity.onCreateView(Activity.java:4746)
11-30 17:09:34.261: E/ActivityThread(10763): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
11-30 17:09:34.261: E/ActivityThread(10763): 	... 20 more
11-30 17:09:34.261: D/AndroidRuntime(10763): Shutting down VM
11-30 17:09:34.261: W/dalvikvm(10763): threadid=1: thread exiting with uncaught exception (group=0x415367c0)
11-30 17:09:34.261: E/AndroidRuntime(10763): FATAL EXCEPTION: main
11-30 17:09:34.261: E/AndroidRuntime(10763): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.hanpfei.mymapexample/com.hanpfei.mymapexample.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2339)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.ActivityThread.access$600(ActivityThread.java:153)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.os.Looper.loop(Looper.java:137)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.ActivityThread.main(ActivityThread.java:5289)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at java.lang.reflect.Method.invoke(Method.java:525)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at dalvik.system.NativeStart.main(Native Method)
11-30 17:09:34.261: E/AndroidRuntime(10763): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:320)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.Activity.setContentView(Activity.java:1895)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at com.hanpfei.mymapexample.MainActivity.onCreate(MainActivity.java:12)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.Activity.performCreate(Activity.java:5133)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	... 11 more
11-30 17:09:34.261: E/AndroidRuntime(10763): 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:
11-30 17:09:34.261: E/AndroidRuntime(10763): <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
11-30 17:09:34.261: E/AndroidRuntime(10763): <uses-permission android:name="android.permission.INTERNET"/>
11-30 17:09:34.261: E/AndroidRuntime(10763): <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
11-30 17:09:34.261: E/AndroidRuntime(10763): <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at maps.af.cf.a(Unknown Source)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at maps.af.ay.a(Unknown Source)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at maps.af.al.a(Unknown Source)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at maps.af.be.a(Unknown Source)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at maps.af.bd.a(Unknown Source)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at cmj.onTransact(SourceFile:107)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.os.Binder.transact(Binder.java:347)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at com.google.android.gms.maps.internal.IMapFragmentDelegate$a$a.onCreateView(Unknown Source)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at com.google.android.gms.maps.MapFragment$a.onCreateView(Unknown Source)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at com.google.android.gms.dynamic.a$4.b(Unknown Source)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at com.google.android.gms.dynamic.a.a(Unknown Source)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at com.google.android.gms.dynamic.a.onCreateView(Unknown Source)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at com.google.android.gms.maps.MapFragment.onCreateView(Unknown Source)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.Fragment.performCreateView(Fragment.java:1695)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:861)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1035)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.FragmentManagerImpl.addFragment(FragmentManager.java:1137)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.app.Activity.onCreateView(Activity.java:4746)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
11-30 17:09:34.261: E/AndroidRuntime(10763): 	... 20 more

5. 此次是關於權限的。那咱們就將前文中提到的要添加的那些權限都加進去。必需要的4種，可選的兩種。真是讓人無奈，編譯執行以後，仍是有exception拋出來：

11-30 17:14:36.155: I/Process(11373): Sending signal. PID: 11373 SIG: 9
11-30 17:14:41.851: E/ActivityThread(11619): Failed to inflate
11-30 17:14:41.851: E/ActivityThread(11619): android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
11-30 17:14:41.851: E/ActivityThread(11619): 	at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:320)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.Activity.setContentView(Activity.java:1895)
11-30 17:14:41.851: E/ActivityThread(11619): 	at com.hanpfei.mymapexample.MainActivity.onCreate(MainActivity.java:12)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.Activity.performCreate(Activity.java:5133)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.ActivityThread.access$600(ActivityThread.java:153)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.os.Looper.loop(Looper.java:137)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.ActivityThread.main(ActivityThread.java:5289)
11-30 17:14:41.851: E/ActivityThread(11619): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-30 17:14:41.851: E/ActivityThread(11619): 	at java.lang.reflect.Method.invoke(Method.java:525)
11-30 17:14:41.851: E/ActivityThread(11619): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
11-30 17:14:41.851: E/ActivityThread(11619): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
11-30 17:14:41.851: E/ActivityThread(11619): 	at dalvik.system.NativeStart.main(Native Method)
11-30 17:14:41.851: E/ActivityThread(11619): Caused by: java.lang.RuntimeException: API key not found.  Check that <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="your API key"/> is in the <application> element of AndroidManifest.xml
11-30 17:14:41.851: E/ActivityThread(11619): 	at maps.af.ay.a(Unknown Source)
11-30 17:14:41.851: E/ActivityThread(11619): 	at maps.af.ay.a(Unknown Source)
11-30 17:14:41.851: E/ActivityThread(11619): 	at maps.af.al.a(Unknown Source)
11-30 17:14:41.851: E/ActivityThread(11619): 	at maps.af.be.a(Unknown Source)
11-30 17:14:41.851: E/ActivityThread(11619): 	at maps.af.bd.a(Unknown Source)
11-30 17:14:41.851: E/ActivityThread(11619): 	at cmj.onTransact(SourceFile:107)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.os.Binder.transact(Binder.java:347)
11-30 17:14:41.851: E/ActivityThread(11619): 	at com.google.android.gms.maps.internal.IMapFragmentDelegate$a$a.onCreateView(Unknown Source)
11-30 17:14:41.851: E/ActivityThread(11619): 	at com.google.android.gms.maps.MapFragment$a.onCreateView(Unknown Source)
11-30 17:14:41.851: E/ActivityThread(11619): 	at com.google.android.gms.dynamic.a$4.b(Unknown Source)
11-30 17:14:41.851: E/ActivityThread(11619): 	at com.google.android.gms.dynamic.a.a(Unknown Source)
11-30 17:14:41.851: E/ActivityThread(11619): 	at com.google.android.gms.dynamic.a.onCreateView(Unknown Source)
11-30 17:14:41.851: E/ActivityThread(11619): 	at com.google.android.gms.maps.MapFragment.onCreateView(Unknown Source)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.Fragment.performCreateView(Fragment.java:1695)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:861)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1035)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.FragmentManagerImpl.addFragment(FragmentManager.java:1137)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.app.Activity.onCreateView(Activity.java:4746)
11-30 17:14:41.851: E/ActivityThread(11619): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
11-30 17:14:41.851: E/ActivityThread(11619): 	... 20 more
11-30 17:14:41.861: D/AndroidRuntime(11619): Shutting down VM
11-30 17:14:41.861: W/dalvikvm(11619): threadid=1: thread exiting with uncaught exception (group=0x415367c0)
11-30 17:14:41.861: E/AndroidRuntime(11619): FATAL EXCEPTION: main
11-30 17:14:41.861: E/AndroidRuntime(11619): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.hanpfei.mymapexample/com.hanpfei.mymapexample.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2339)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.ActivityThread.access$600(ActivityThread.java:153)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.os.Looper.loop(Looper.java:137)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.ActivityThread.main(ActivityThread.java:5289)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at java.lang.reflect.Method.invoke(Method.java:525)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at dalvik.system.NativeStart.main(Native Method)
11-30 17:14:41.861: E/AndroidRuntime(11619): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:320)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.Activity.setContentView(Activity.java:1895)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at com.hanpfei.mymapexample.MainActivity.onCreate(MainActivity.java:12)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.Activity.performCreate(Activity.java:5133)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	... 11 more
11-30 17:14:41.861: E/AndroidRuntime(11619): Caused by: java.lang.RuntimeException: API key not found.  Check that <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="your API key"/> is in the <application> element of AndroidManifest.xml
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at maps.af.ay.a(Unknown Source)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at maps.af.ay.a(Unknown Source)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at maps.af.al.a(Unknown Source)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at maps.af.be.a(Unknown Source)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at maps.af.bd.a(Unknown Source)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at cmj.onTransact(SourceFile:107)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.os.Binder.transact(Binder.java:347)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at com.google.android.gms.maps.internal.IMapFragmentDelegate$a$a.onCreateView(Unknown Source)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at com.google.android.gms.maps.MapFragment$a.onCreateView(Unknown Source)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at com.google.android.gms.dynamic.a$4.b(Unknown Source)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at com.google.android.gms.dynamic.a.a(Unknown Source)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at com.google.android.gms.dynamic.a.onCreateView(Unknown Source)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at com.google.android.gms.maps.MapFragment.onCreateView(Unknown Source)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.Fragment.performCreateView(Fragment.java:1695)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:861)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1035)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.FragmentManagerImpl.addFragment(FragmentManager.java:1137)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.app.Activity.onCreateView(Activity.java:4746)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
11-30 17:14:41.861: E/AndroidRuntime(11619): 	... 20 more

6. 此次是關於API key的。OK，那咱們就再遵守前文的說明，在Google APIs Console中產生一個API key加進來。這個地方多說一點，其實咱們經過eclipse已是能夠看到debug證書的SHA-1指紋了，而不須要再去執行什麼keytool。方法爲，選擇Window->Preferences->Android->Build，在SHA-1 fingerprint那一行。再次編譯並執行。

哎，咱們終於看到了期待已久的地圖了。