[英]Android google maps inside fragment
我知道有很多关于stackoverflow中片段内的地图的问题,但是所有这些都已经过时而且对我不起作用。所以,我试图在片段中实现谷歌地图,地图显示,但是我不能使用setMyLocationEnabler(true),或添加标记或任何东西..这是我的代码:
public class MapFragment extends Fragment {
private SupportMapFragment mSupportMapFragment;
public MapFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mSupportMapFragment = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.location_map);
if (mSupportMapFragment == null) {
FragmentManager fragmentManager = getChildFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
mSupportMapFragment = SupportMapFragment.newInstance();
fragmentTransaction.replace(R.id.location_map, mSupportMapFragment).commit();
}
if (mSupportMapFragment != null) {
mSupportMapFragment.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(GoogleMap googleMap) {
if (googleMap != null) {
googleMap.getUiSettings().setAllGesturesEnabled(true);
if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
googleMap.setMyLocationEnabled(true);
LatLng sydney = new LatLng(-34, 151);
googleMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
googleMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
}
}
});
}
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_map, container, false);
}
}
我的API密钥已正确添加到清单文件中:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<application
<meta-data android:name="com.google.android.geo.API_KEY" android:value="-----------------------------------"/>
</application>
这是片段布局:
<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"
tools:context="mk.com.urban.urbanrider.MapFragment">
<!-- TODO: Update blank fragment layout -->
<FrameLayout
android:id="@+id/location_map"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.SupportMapFragment" />
</RelativeLayout>
我有build.gradle的google play服务依赖项:
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile project(':volley')
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support:design:23.4.0'
compile 'com.android.support:support-v4:23.4.0'
compile 'com.google.android.gms:play-services:8.4.0'
}
我真的不知道接下来要做什么,我已经尝试了一切......
我刚试过,我发现在自定义片段中使用map没有任何问题。
带有自定义片段的Activity类:
public class DemoActivity extends AppCompatActivity {
public static class WrapFragment extends Fragment {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.wrap_demo_fragment, container, false);
return view;
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.save_state_demo);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.map_wrap, new WrapFragment(), "qwerty_tag")
.commit();
}
}
}
活动布局save_state_demo.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="1337" />
<FrameLayout
android:id="@+id/map_wrap"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
您的自定义片段布局wrap_demo_fragment.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<fragment
android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.SupportMapFragment" />
</LinearLayout>
这就是你所需要的。
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