我试图获得一个简单的基于地图的应用程序运行,但当我安装在设备上并尝试“打开”我收到错误“不幸的应用程序已停止”在模拟器上我收到消息:简单的基于地图的应用程序不工作
[2014-03-18 21:37:16 - FirstMap] Installation error: Unknown failure
[2014-03-18 21:37:16 - FirstMap] Please check logcat output for more details.
[2014-03-18 21:37:16 - FirstMap] Launch canceled!
为什么我会收到此消息?我认为我的代码看起来不错,因为我已经按照以下步骤操作:https://developers.google.com/maps/documentation/android/v1/hello-mapview?
这里是我的代码:
MainActivity.java :
package com.example.firstmap;
import android.os.Bundle;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
public class MainActivity extends MapActivity {
@Override
protected boolean isRouteDisplayed() {
return false;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
MapView mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
}
}
的main.xml:
<?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="mykey"
/>
AndroidManifect.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.firstmap"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.firstmap.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>
</application>
</manifest>