在Android應用程序中添加Google地圖

Question

我是Android開發的新手。 我想將Google地圖添加到我的應用程序中。 我已經進行了很多搜索，但是當我運行應用程序時，仍然出現相同的問題“不幸的是，應用程序已停止”

這是我的java類

package com.example.hellomap;
import com.google.android.maps.MapView;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;


public class MainActivity extends FragmentActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.map_main);
        MapView map =(MapView) findViewById(R.id.map);

    }

}

xml文件：

<?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"/>

和清單

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

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="16" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <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"/>
<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" >
        <uses-library android:name="com.google.android.maps"/>
        <activity
            android:name="com.example.hellomap.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>
        <meta-data
    android:name="com.google.android.maps.v2.API_KEY"
    android:value="AIzaSyCKSp9pb7g8Wkga2SgeoT_MSe0JG59DkSU" />
    </application>

</manifest>

LogCat顯示：

04-03 13:45:42.574: E/AndroidRuntime(1164): FATAL EXCEPTION: main
04-03 13:45:42.574: E/AndroidRuntime(1164): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.hellomap/com.example.hellomap.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.ActivityThread.access$600(ActivityThread.java:130)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.os.Handler.dispatchMessage(Handler.java:99)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.os.Looper.loop(Looper.java:137)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.ActivityThread.main(ActivityThread.java:4745)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at java.lang.reflect.Method.invokeNative(Native Method)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at java.lang.reflect.Method.invoke(Method.java:511)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at dalvik.system.NativeStart.main(Native Method)
04-03 13:45:42.574: E/AndroidRuntime(1164): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.view.LayoutInflater.inflate(LayoutInflater.java:466)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:256)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.Activity.setContentView(Activity.java:1867)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at com.example.hellomap.MainActivity.onCreate(MainActivity.java:23)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.Activity.performCreate(Activity.java:5008)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
04-03 13:45:42.574: E/AndroidRuntime(1164):     ... 11 more
04-03 13:45:42.574: E/AndroidRuntime(1164): Caused by: android.app.Fragment$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
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.Fragment.instantiate(Fragment.java:584)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.Fragment.instantiate(Fragment.java:552)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.Activity.onCreateView(Activity.java:4656)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
04-03 13:45:42.574: E/AndroidRuntime(1164):     ... 20 more
04-03 13:45:42.574: E/AndroidRuntime(1164): Caused by: java.lang.ClassNotFoundException: com.google.android.gms.maps.MapFragment
04-03 13:45:42.574: E/AndroidRuntime(1164):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
04-03 13:45:42.574: E/AndroidRuntime(1164):     at android.app.Fragment.instantiate(Fragment.java:574)
04-03 13:45:42.574: E/AndroidRuntime(1164):     ... 23 more
04-03 13:50:42.626: I/Process(1164): Sending signal. PID: 1164 SIG: 9

感謝幫助 ：）

Answer 1

例外：-ClassNotFoundException，請先檢查GooglePlayService庫項目。

您無法在地圖視圖上鍵入Cast Fragment的第二件事，請閱讀此內容

更新：-

遵循步驟：-

1）創建新項目

2）將GooglePlayService庫項目導入到您的工作區中。

3）將Google Play服務庫項目分配為您的項目的庫項目

4）現在將地圖片段/支持的地圖片段添加到您的活動布局文件中

5）確保找到該類

如何檢查==>按下鍵盤上的控制鍵，然后單擊您找到的班級名稱ID，然后其他方法也可以解決。 我更喜歡使用支持的片段。

6）按照我之前發布的鏈接中的描述定義所有權限。

6）現在是時候為地圖生成api密鑰了，按照給定鏈接的步驟進行操作。

謝謝，我希望它的幫助