我正在尝试在我的Android项目中使用Google地图群集。
目前我开始实际复制了演示中的代码 https://github.com/googlemaps/android-maps-utils (对我来说运行正常)
在我的项目上,
mClusterManager = new ClusterManager<MyItem>(this, getMap());
它扔了:
java.lang.ClassCastException: android.widget.ImageView cannot be cast to com.google.maps.android.ui.RotationLayout
我甚至无法弄清楚为什么有铸造?
基本上从中获取活动(以及所有需要的相关课程) https://github.com/googlemaps/android-maps-utils/blob/master/demo/src/com/google/maps/android/utils/demo/BigClusteringDemoActivity.java
public class ClusteringDemoActivity extends BaseDemoActivity {
private ClusterManager<MyItem> mClusterManager;
@Override
protected void startDemo() {
getMap().moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(51.503186, -0.126446), 10));
mClusterManager = new ClusterManager<MyItem>(this, getMap());
getMap().setOnCameraChangeListener(mClusterManager);
try {
readItems();
} catch (JSONException e) {
Toast.makeText(this, "Problem reading list of markers.", Toast.LENGTH_LONG).show();
}
}
private void readItems() throws JSONException {
InputStream inputStream = getResources().openRawResource(R.raw.radar_search);
List<MyItem> items = new MyItemReader().read(inputStream);
mClusterManager.addItems(items);
}
public static void launch(Context context) {
context.startActivity(new Intent(context, ClusteringDemoActivity.class));
}
}
public abstract class BaseDemoActivity extends FragmentActivity {
private GoogleMap mMap;
protected int getLayoutId() {
return R.layout.map;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutId());
setUpMapIfNeeded();
}
@Override
protected void onResume() {
super.onResume();
setUpMapIfNeeded();
}
private void setUpMapIfNeeded() {
if (mMap != null) {
return;
}
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();
if (mMap != null) {
startDemo();
}
}
/**
* Run the demo-specific code.
*/
protected abstract void startDemo();
protected GoogleMap getMap() {
setUpMapIfNeeded();
return mMap;
}
}
public class MyItem implements ClusterItem {
private final LatLng mPosition;
public MyItem(double lat, double lng) {
mPosition = new LatLng(lat, lng);
}
@Override
public LatLng getPosition() {
return mPosition;
}
}
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
并拥有我的build.gradle
compile 'com.google.android.gms:play-services-maps:8.4.0'
compile 'com.google.maps.android:android-maps-utils:0.3+'
有人有任何想法吗?
答案 0 :(得分:2)
这可以帮助任何人 -
我在自己的项目中有一个名为text_bubble.xml的布局 这与图书馆的布局发生冲突,名称相同,引起了例外。
只需重命名我的布局即可解决此问题。