Nie można utworzyć instancji android.gms.maps.MapFragment
Próbuję zrobić demo z mapami google android v2 z bardzo prostą czynnością, po prostu skopiuj kod ze strony google:https://developers.google.com/maps/documentation/android/start#adding_the_api_key_to_your_application
za aktywność:
package com.example.mapdemo;
import android.app.Activity;
import android.os.Bundle;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
dla układu:
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.MapFragment"/>
Złożyłem wniosek o klucz API według strony i zmodyfikowałem mój plik androidmanifest.xml, tak jak poniżej:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.wenhai.driverschool"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.INTERNET" />
<!-- add for map2 -->
<permission
android:name="com.example.mapdemo.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.mapdemo.permission.MAPS_RECEIVE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<!-- External storage for caching. -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<!-- Maps API needs OpenGL ES 2.0. -->
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="AIzaSyDVAF4WaVSVRDKJx87It8OSFP5txQcPabc" />
<activity
android:name=".MainActivity"
android:label="@string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Odwołuję się również do mojej aplikacji do google-play-services_lib w eclipse.
ale za każdym razem raport błędów w logcat wygląda tak:
2-05 16:22:53.609: E/AndroidRuntime(21623): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.wenhai.driverschool/com.wenhai.driverschool.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1967)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.ActivityThread.access$600(ActivityThread.java:127)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.os.Handler.dispatchMessage(Handler.java:99)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.os.Looper.loop(Looper.java:137)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.ActivityThread.main(ActivityThread.java:4441)
12-05 16:22:53.609: E/AndroidRuntime(21623): at java.lang.reflect.Method.invokeNative(Native Method)
12-05 16:22:53.609: E/AndroidRuntime(21623): at java.lang.reflect.Method.invoke(Method.java:511)
12-05 16:22:53.609: E/AndroidRuntime(21623): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823)
12-05 16:22:53.609: E/AndroidRuntime(21623): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590)
12-05 16:22:53.609: E/AndroidRuntime(21623): at dalvik.system.NativeStart.main(Native Method)
12-05 16:22:53.609: E/AndroidRuntime(21623): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.view.LayoutInflater.inflate(LayoutInflater.java:466)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
12-05 16:22:53.609: E/AndroidRuntime(21623): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:255)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.Activity.setContentView(Activity.java:1835)
12-05 16:22:53.609: E/AndroidRuntime(21623): at com.wenhai.driverschool.MainActivity.onCreate(MainActivity.java:11)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.Activity.performCreate(Activity.java:4465)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1931)
12-05 16:22:53.609: E/AndroidRuntime(21623): ... 11 more
12-05 16:22:53.609: E/AndroidRuntime(21623): Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.MapFragment: make sure class name exists, is public, and has an empty constructor that is public
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.Fragment.instantiate(Fragment.java:581)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.Fragment.instantiate(Fragment.java:549)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.Activity.onCreateView(Activity.java:4235)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:673)
12-05 16:22:53.609: E/AndroidRuntime(21623): ... 20 more
12-05 16:22:53.609: E/AndroidRuntime(21623): Caused by: java.lang.ClassNotFoundException: com.google.android.gms.maps.MapFragment
12-05 16:22:53.609: E/AndroidRuntime(21623): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
12-05 16:22:53.609: E/AndroidRuntime(21623): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
12-05 16:22:53.609: E/AndroidRuntime(21623): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
12-05 16:22:53.609: E/AndroidRuntime(21623): at android.app.Fragment.instantiate(Fragment.java:571)
12-05 16:22:53.609: E/AndroidRuntime(21623): ... 23 more
Nie znam powodu tego.
Jeśli dodam google-play-services.jar do mojego projektu, zgłosi inny błąd:
12-05 16:34:23.269: E/AndroidRuntime(22638): FATAL EXCEPTION: main
12-05 16:34:23.269: E/AndroidRuntime(22638): java.lang.NoClassDefFoundError: com.google.android.gms.R$styleable
12-05 16:34:23.269: E/AndroidRuntime(22638): at com.google.android.gms.maps.GoogleMapOptions.createFromAttributes(Unknown Source)
12-05 16:34:23.269: E/AndroidRuntime(22638): at com.google.android.gms.maps.MapFragment.onInflate(Unknown Source)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.app.Activity.onCreateView(Activity.java:4242)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:673)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.view.LayoutInflater.inflate(LayoutInflater.java:466)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
12-05 16:34:23.269: E/AndroidRuntime(22638): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:255)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.app.Activity.setContentView(Activity.java:1835)
12-05 16:34:23.269: E/AndroidRuntime(22638): at com.wenhai.driverschool.MainActivity.onCreate(MainActivity.java:11)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.app.Activity.performCreate(Activity.java:4465)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1931)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.app.ActivityThread.access$600(ActivityThread.java:127)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.os.Handler.dispatchMessage(Handler.java:99)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.os.Looper.loop(Looper.java:137)
12-05 16:34:23.269: E/AndroidRuntime(22638): at android.app.ActivityThread.main(ActivityThread.java:4441)
12-05 16:34:23.269: E/AndroidRuntime(22638): at java.lang.reflect.Method.invokeNative(Native Method)
12-05 16:34:23.269: E/AndroidRuntime(22638): at java.lang.reflect.Method.invoke(Method.java:511)
12-05 16:34:23.269: E/AndroidRuntime(22638): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823)
12-05 16:34:23.269: E/AndroidRuntime(22638): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590)
12-05 16:34:23.269: E/AndroidRuntime(22638): at dalvik.system.NativeStart.main(Native Method)
Czy ktoś może mi w tym pomóc?