[英]How Can I Add Map view to my Android app fragmentactivity
I am trying to add Map View to my android app but failed App crashed Note: I have added google map API and associate permission into android manifests 我正在尝试将“地图视图”添加到我的android应用程序中,但是应用程序崩溃了。
MY contact_view_hd.xml
我的
contact_view_hd.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/linear_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/gradient_animation_list"
android:orientation="vertical">
<com.google.android.gms.maps.MapView
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
and my fragment class 和我的片段类
public class ContactDetail extends Fragment implements OnMapReadyCallback{
MapView mMapView;
GoogleMap mGoogleMap;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.view_contact_hd, container, false);
mMapView = (MapView) v.findViewById(R.id.mapview);
mMapView.onCreate(savedInstanceState);
mMapView.getMapAsync(this); //this is important
return v;
}
@Override
public void onMapReady(GoogleMap googleMap) {
mGoogleMap = googleMap;
LatLng pp = new LatLng(43.1, -87.9);
mGoogleMap.getUiSettings().setZoomControlsEnabled(true);
mGoogleMap.addMarker(new MarkerOptions().position(pp));
mGoogleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(pp, 10));
}
@Override
public void onResume() {
super.onResume();
mMapView.onResume();
}
@Override
public void onPause() {
super.onPause();
mMapView.onPause();
}
@Override
public void onDestroy() {
super.onDestroy();
mMapView.onDestroy();
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mMapView.onSaveInstanceState(outState);
}
@Override
public void onLowMemory() {
super.onLowMemory();
mMapView.onLowMemory();
}
}
LOG LOG
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.rupom.sbl, PID: 7373
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.rupom.sbl/com.rupom.sbl.ContactDetail}: java.lang.ClassCastException: com.rupom.sbl.ContactDetail cannot be cast to android.app.Activity
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2843)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.ClassCastException: com.rupom.sbl.ContactDetail cannot be cast to android.app.Activity
at android.app.AppComponentFactory.instantiateActivity(AppComponentFactory.java:69)
at android.support.v4.app.CoreComponentFactory.instantiateActivity(CoreComponentFactory.java:43)
at android.app.Instrumentation.newActivity(Instrumentation.java:1215)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2831)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Did you know that there is a Wizard for adding this to your app? 您是否知道有向导可以将其添加到您的应用程序? You can use the Android Live Templates to create this (then you will have most of the work done for you automatically).
您可以使用Android Live模板创建此模板(然后您将自动完成大部分工作)。
Try: File>New>Google>Google Map Activity (you will need to convert to Fragment yourself). 试试:File> New> Google> Google Map Activity(您需要自己转换为Fragment)。
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