我创建了一个新的MapActivity
课程MapProba
。
从主Activity
我要展示MapActivity
:点按钮点击事件我输入了以下代码:
Intent myIntent = new Intent(this, com.art.mode.MapProba.class);
startActivity(myIntent);
但是我收到了强制关闭错误。
在我的xml文件中,我使用以下代码:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<com.google.android.maps.MapView
android:id="@+id/map_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:apiKey="SomeGoogleMapAPIKeyHere" />
</LinearLayout>
在日志中,我收到此错误:
08-31 04:47:10.218: ERROR/AndroidRuntime(593): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.art.mode/com.art.mode.MapProba}:
android.view.InflateException: Binary XML file line #7: Error inflating class com.google.android.maps.MapView
第7行是:com.google.android.maps.MapView
当我从xml文件中删除此代码时:
<com.google.android.maps.MapView
android:id="@+id/map_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:apiKey="SomeGoogleMapAPIKeyHere" />
出现空白黑屏(没有错误)
在清单文件中我有:
uses-permission android:name="android.permission.INTERNET"
uses-permission android:name="android.permission.ACCESS_LOCATION"
<uses-library android:name="com.google.android.maps" />
有什么想法吗?
由于
更新
08-31 12:22:00.648: ERROR/AndroidRuntime(656): FATAL EXCEPTION: main
08-31 12:22:00.648: ERROR/AndroidRuntime(656): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.art.mode/com.art.mode.MapProba}: android.view.InflateException: Binary XML file line #7: Error inflating class com.google.android.maps.MapView
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.os.Handler.dispatchMessage(Handler.java:99)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.os.Looper.loop(Looper.java:123)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.app.ActivityThread.main(ActivityThread.java:4627)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at java.lang.reflect.Method.invokeNative(Native Method)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at java.lang.reflect.Method.invoke(Method.java:521)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at dalvik.system.NativeStart.main(Native Method)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class com.google.android.maps.MapView
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.view.LayoutInflater.createView(LayoutInflater.java:513)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:565)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.app.Activity.setContentView(Activity.java:1647)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at com.art.mode.MapProba.onCreate(MapProba.java:12)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): ... 11 more
08-31 12:22:00.648: ERROR/AndroidRuntime(656): Caused by: java.lang.reflect.InvocationTargetException
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at com.google.android.maps.MapView.<init>(MapView.java:238)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at java.lang.reflect.Constructor.constructNative(Native Method)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at android.view.LayoutInflater.createView(LayoutInflater.java:500)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): ... 21 more
08-31 12:22:00.648: ERROR/AndroidRuntime(656): Caused by: java.lang.NullPointerException
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at com.google.android.maps.MapActivity.setupMapView(MapActivity.java:382)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at com.google.android.maps.MapView.<init>(MapView.java:280)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): at com.google.android.maps.MapView.<init>(MapView.java:255)
08-31 12:22:00.648: ERROR/AndroidRuntime(656): ... 25 more
答案 0 :(得分:3)
我遇到了同样的问题,您必须将此标记放在AndroidManifest.xml中
<uses-library android:name="com.google.android.maps"/>
它应该在里面:
<application>
<uses-library android:name="com.google.android.maps"/>
</application>
!!!!永远,永远不在外面
并在你的活动中使用它
Intent myIntent = new Intent(getBaseContext(), MapProba.class);
startActivity(myIntent);
答案 1 :(得分:0)
你能发送更多错误日志吗?
之后发生了什么XML文件行#7:com.google.android.maps.MapView类错误导致...
它可能会告诉我为什么它不能给这个类充气,不管它是否存在,或者它是否缺少库......等等......
- 更新后 -
你在运行什么类型的设备?
如果您使用模拟器,则需要使用Google API作为构建目标。
如果您使用真实设备,它应该可以在G1上正常工作,但如果它是从AOSP移植Android的设备,您很可能没有安装正确的库。
具体来说,您应该拥有com.google.android.maps.jar和com.google.android.maps.xml等文件 有一个很好的教程可以使用mapview: http://developer.android.com/resources/tutorials/views/hello-mapview.html
答案 2 :(得分:0)
在地图表单类中,您使用的是extends MapActivity
而不是extends Activity
吗?在我意识到我使用了错误的扩展类之前,我已经搞砸了一段时间。 :P
答案 3 :(得分:0)
如果您使用外部设备进行调试,则可能是它没有安装正确的库。
特别是对于archos用户,请查看http://code.google.com/p/archos-apps-installer/downloads/detail?name=gAppsInstaller_v5-final.apk