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我正在尝试在 android 中使用谷歌地图功能。我按照https://developers.google.com/maps/documentation/android/hello-mapview的说明进行操作。但是当我运行该应用程序时，似乎存在某种问题。我不确定它是什么，但应用程序不会加载。这是 logcat 中列出的错误。

07-26 02:01:01.771: ERROR/AndroidRuntime(158): ERROR: thread attach failed

07-26 02:01:06.761: ERROR/AndroidRuntime(211): Uncaught handler: thread main exiting due to uncaught exception

07-26 02:01:06.841: ERROR/AndroidRuntime(211): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.trainingcenter.maps/com.trainingcenter.maps.HelloGoogleMaps}: java.lang.ClassNotFoundException: com.trainingcenter.maps.HelloGoogleMaps in loader dalvik.system.PathClassLoader@43b7d958

07-26 02:01:06.841: ERROR/AndroidRuntime(211): Caused by: java.lang.ClassNotFoundException: com.trainingcenter.maps.HelloGoogleMaps in loader dalvik.system.PathClassLoader@43b7d958

07-26 02:01:06.931: ERROR/dalvikvm(211): Unable to open stack trace file '/data/anr/traces.txt': Permission denied

07-26 02:01:17.400: ERROR/AndroidRuntime(242): ERROR: thread attach failed

07-26 02:01:26.391: ERROR/ActivityThread(63): Failed to find provider info for com.google.settings

07-26 02:02:24.580: ERROR/AndroidRuntime(323): ERROR: thread attach failed

07-26 02:07:12.640: ERROR/AndroidRuntime(417): Uncaught handler: thread main exiting due to uncaught exception

07-26 02:07:12.640: ERROR/AndroidRuntime(417): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.trainingcenter.maps/com.trainingcenter.maps.HelloGoogleMaps}: java.lang.ClassNotFoundException: com.trainingcenter.maps.HelloGoogleMaps in loader dalvik.system.PathClassLoader@43d02ee8

07-26 02:07:12.640: ERROR/AndroidRuntime(417): Caused by: java.lang.ClassNotFoundException: com.trainingcenter.maps.HelloGoogleMaps in loader dalvik.system.PathClassLoader@43d02ee8

你能告诉我有什么问题吗？谢谢您的帮助。

这是android清单

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.trainingcenter.maps" android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="7" />
<uses-library android:name="com.google.android.maps" />
<uses-permission android:name="android.permission.INTERNET" />

<application android:icon="@drawable/icon" android:label="@string/app_name">
    <activity android:name=".HelloGoogleMaps" android:label="@string/app_name"
        android:theme="@android:style/Theme.NoTitleBar">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

</application>

这里是活动

package com.trainingcenter.maps;

import android.os.Bundle;

import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;

public class HelloGoogleMaps extends MapActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    MapView mapView = (MapView) findViewById(R.id.mapview);
    mapView.setBuiltInZoomControls(true);
}

@Override
protected boolean isRouteDisplayed() {
    // TODO Auto-generated method stub
    return false;
}
}

这是 main.xml 文件

<?xml version="1.0" encoding="utf-8"?>
<com.google.android.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/mapview"
android:layout_width="fill_parent" 
    android:layout_height="fill_parent"
android:clickable="true" 
    android:apiKey="I inserted the API key here, I got it from http://code.google.com/android/maps-api-signup.html" />

顺便说一句，我正在使用 Google API 级别 2.1 更新 1

4

1 回答 1

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<uses-library android:name="com.google.android.maps" />需要在<application>标签内

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

    <uses-sdk android:minSdkVersion="7" />

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

    <application
        android:icon="@drawable/icon"
        android:label="@string/app_name" >
        <uses-library android:name="com.google.android.maps" />

        <activity
            android:name=".HelloGoogleMaps"
            android:label="@string/app_name"
            android:theme="@android:style/Theme.NoTitleBar" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

编辑：

在您的 xml 文件中，我还要添加android:enabled="true"

<com.google.android.maps.MapView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/mapview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:enabled="true"
    android:apiKey="I inserted the API key here, I got it from http://code.google.com/android/maps-api-signup.html"
    android:clickable="true" />
于 2012-07-26T02:31:52.463 回答