java - 无法在 Android 上获取谷歌地图而不崩溃

Question

在过去的几天里，我一直在尝试许多关于在 Android 上获取 google map api 的教程。我一点运气都没有，每次启动应用程序都会崩溃。这是我的代码，我想做的就是显示 map - 就是这样!

MainActivity.java:

package com.example.gettinggmapsworking;


import android.os.Build;
import android.os.Bundle;

import com.example.R;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.view.Menu;




@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public class MainActivity extends Activity 
 {


  static final LatLng MUMBAI = new LatLng(19.0144100, 72.8479400);
  private GoogleMap map;

  @Override

  protected void onCreate(Bundle savedInstanceState) 
      {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
    map.moveCamera(CameraUpdateFactory.newLatLngZoom(MUMBAI, 15));

    // Zoom in, animating the camera.
    map.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null);
  }
}

这是我的activity_main.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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

 <fragment
    android:id="@+id/map"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    class="com.google.android.gms.maps.MapFragment" />

</RelativeLayout>

最后这是我的 list :

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

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="17" />

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

<permission android:name="com.example.permission.MAPS_RECEIVE" android:protectionLevel="signature"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="com.example.permission.MAPS_RECEIVE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="com.mapexplore.permission.MAPS_RECEIVE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.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>

     <!-- Your API key needs to be added over here -->
     <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="AIzaSyB_kvQ38jYvL9BlEgRw6P-7bw-No_Ose9s" />

</application>
</manifest>

Answer 1

list 中的 Activity 名称错误。它应该是com.example.gettinggmapsworking.MainActivity。您的 list 中的 Activity 标记将变为:

<activity
    android:name="com.example.gettinggmapsworking.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>