设置Google Maps v2错误

Question

java.lang.RuntimeException：无法实例化activity ComponentInfo{com.alpha.dealtap/com.alpha.dealtap.map}：java.lang.ClassNotFoundException：loaderDalvik中的com.alpha.dealtap.map。LoaderDalvik.System.PathClassLoader[/system/framework/com.google.android.maps.jar:/data/app/com.alpha.dealtap-1.apk

清单

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

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="15" />

<permission
    android:name="com.alpha.dealtap.permission.MAPS_RECEIVE"
    android:protectionLevel="signature" />

<uses-permission android:name="dealtap.permission.MAPS_RECEIVE" />
<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-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

<!-- <uses-permission android:name="com.example.mapdemo.permission.MAPS_RECEIVE"/> -->


<!-- This might be the problem......The Google code produces an error -->
<uses-feature
    android:glEsVersion="0x00020000"
    android:required="true" />

<application
    android:allowBackup="true"
    android:icon="@drawable/dealtap_text"
    android:label="@string/app_name"
    android:theme="@android:style/Theme.NoTitleBar" >
    <uses-library android:name="com.google.android.maps" />

    <activity
        android:name="com.alpha.dealtap.Main"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="com.alpha.dealtap.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name="com.alpha.dealtap.Search_Page"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="com.alpha.dealtap.SEARCH_PAGE" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name="com.alpha.dealtap.DealPage"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="com.alpha.dealtap.DEALPAGE" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name="com.alpha.dealtap.StorePage"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="com.alpha.dealtap.STOREPAGE" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name="com.alpha.dealtap.Map"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="com.alpha.dealtap.MAP" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name="com.alpha.dealtap.TapDeal"
        android:label="TapDeal"
        android:windowSoftInputMode="stateHidden" >
        <intent-filter>
            <action android:name="com.alpha.dealtap.TAPDEAL" />

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

    <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="Took it out for privacy" />
</application>

</manifest>

map.java

package com.alpha.dealtap;

import com.alpha.dealtap.R;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;

public class Map extends FragmentActivity {

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

}
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@color/white" >

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

Answer 1

步骤1：删除 ，因为MapsV2不使用它。

步骤2：如果您使用的是R22（或更高）版本的Eclipse ADT插件，请确保修复您的构建路径。

如果这些没有帮助，请确保您已经将Play Services Android library项目正确地附加到您的项目中。例如，如果您手动修改了构建路径（超出了步骤#2所要求的范围），那就不是附加Play Services Android library项目的正确方法。