android 2.2中的GOOGlE API V2问题
我想在android 2.2中使用google api v2 我已经完成了它的所有先决条件 比如: 谷歌地图api密钥android 2.2中的GOOGlE API V2问题,android,google-maps,google-maps-android-api-2,Android,Google Maps,Google Maps Android Api 2,我想在android 2.2中使用google api v2 我已经完成了它的所有先决条件 比如: 谷歌地图api密钥 android-support-v4.jar google-play-services_lib.jar google-play-services.jar 我得到这个错误 02-26 09:32:04.055: E/AndroidRuntime(334): FATAL EXCEPTION: main 02-26 09:32:04.055: E/AndroidRuntime(334
02-26 09:32:04.055: E/AndroidRuntime(334): FATAL EXCEPTION: main
02-26 09:32:04.055: E/AndroidRuntime(334): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.mapfragment/com.mapfragment.MainActivity}: java.lang.ClassNotFoundException: com.mapfragment.MainActivity in loader dalvik.system.PathClassLoader[/system/framework/com.google.android.maps.jar:/data/app/com.mapfragment-2.apk]
02-26 09:32:04.055: E/AndroidRuntime(334): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585)
02-26 09:32:04.055: E/AndroidRuntime(334): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
02-26 09:32:04.055: E/AndroidRuntime(334): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
02-26 09:32:04.055: E/AndroidRuntime(334): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
02-26 09:32:04.055: E/AndroidRuntime(334): at android.os.Handler.dispatchMessage(Handler.java:99)
02-26 09:32:04.055: E/AndroidRuntime(334): at android.os.Looper.loop(Looper.java:123)
02-26 09:32:04.055: E/AndroidRuntime(334): at android.app.ActivityThread.main(ActivityThread.java:4627)
02-26 09:32:04.055: E/AndroidRuntime(334): at java.lang.reflect.Method.invokeNative(Native Method)
02-26 09:32:04.055: E/AndroidRuntime(334): at java.lang.reflect.Method.invoke(Method.java:521)
02-26 09:32:04.055: E/AndroidRuntime(334): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
02-26 09:32:04.055: E/AndroidRuntime(334): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
02-26 09:32:04.055: E/AndroidRuntime(334): at dalvik.system.NativeStart.main(Native Method)
02-26 09:32:04.055: E/AndroidRuntime(334): Caused by: java.lang.ClassNotFoundException: com.mapfragment.MainActivity in loader dalvik.system.PathClassLoader[/system/framework/com.google.android.maps.jar:/data/app/com.mapfragment-2.apk]
02-26 09:32:04.055: E/AndroidRuntime(334): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
02-26 09:32:04.055: E/AndroidRuntime(334): at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
02-26 09:32:04.055: E/AndroidRuntime(334): at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
02-26 09:32:04.055: E/AndroidRuntime(334): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
02-26 09:32:04.055: E/AndroidRuntime(334): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2577)
02-26 09:32:04.055: E/AndroidRuntime(334): ... 11 more
我的代码:
MainActivity.java
package com.mapfragment;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import com.google.android.gms.common.GooglePlayServicesNotAvailableException;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapsInitializer;
import com.google.android.gms.maps.SupportMapFragment;
public class MainActivity extends FragmentActivity {
GoogleMap mapView;
com.google.android.gms.maps.Projection projection;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
FragmentTransaction mTransaction = getSupportFragmentManager()
.beginTransaction();
SupportMapFragment mFRaFragment = new MapFragmentD();
mTransaction.add(R.id.mainl, mFRaFragment);
mTransaction.commit();
try {
MapsInitializer.initialize(this);
} catch (GooglePlayServicesNotAvailableException e) {
e.printStackTrace();
}
}
}
MapFragmentD.java
package com.mapfragment;
import android.app.Activity;
import android.os.Bundle;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class MapFragmentD extends SupportMapFragment {
GoogleMap mapView;
@Override
public void onCreate(Bundle arg0) {
super.onCreate(arg0);
}
@Override
public View onCreateView(LayoutInflater mInflater, ViewGroup arg1,
Bundle arg2) {
return super.onCreateView(mInflater, arg1, arg2);
}
@Override
public void onInflate(Activity arg0, AttributeSet arg1, Bundle arg2) {
super.onInflate(arg0, arg1, arg2);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mapView = getMap();
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.draggable(true);
markerOptions.position(new LatLng(23.231251f, 71.648437f));
markerOptions.icon(BitmapDescriptorFactory.defaultMarker());
mapView.addMarker(markerOptions);
}
}
main.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:id="@+id/mainl"
android:layout_height="match_parent" >
<!-- <com.mapfragment.MapFragmentD
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true" /> -->
</FrameLayout>
mapfragments.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" >
<com.google.android.maps.MapView
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:apiKey="0WyiQdWfvE1GnA4nWEz8rX1Ezf-rWMEDShPt5BQ"
android:clickable="true" />
</RelativeLayout>
谷歌api v2的几个程序,我将尝试bt每一次,每次只有这个错误发生。
请帮我解决这个错误
提前感谢。您需要在清单中添加以下内容
<permission
android:name="package.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<uses-permission android:name="package.permission.MAPS_RECEIVE" />
和应用程序中的标签
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="@string/map_key" />
您需要在清单中添加以下内容
<permission
android:name="package.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<uses-permission android:name="package.permission.MAPS_RECEIVE" />
和应用程序中的标签
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="@string/map_key" />
您有一个mapFragmented
的布局文件,但您似乎没有使用它,因为onCreateView(…)
正在返回super.onCreateView(…)
。这是故意的吗?缺少一些代码吗?没有。这是完整的代码。在我朋友的电脑上,这个项目可以正常工作。。在我的电脑里,当我运行任何程序时,它会给我这个错误,所以我删除android依赖项,然后工作正常。在这种情况下,我需要android依赖项。bt当我删除这个程序时,它会给我这些错误。伙计们帮我解决这个问题。我没有任何解决方案,除非有太多人买得起..你有一个MapFragmented
的布局文件,但你似乎没有使用它,因为onCreateView(…)
只是返回super.onCreateView(…)
。这是故意的吗?缺少一些代码吗?没有。这是完整的代码。在我朋友的电脑上,这个项目可以正常工作。。在我的电脑里,当我运行任何程序时,它会给我这个错误,所以我删除android依赖项,然后工作正常。在这种情况下,我需要android依赖项。bt当我删除这个程序时,它会给我这些错误。伙计们帮我解决这个问题。除非有太多人买得起,否则我没有任何解决办法。。