Have a look at my implementation that works just fine and also dose some checking on the device before trying to diplay the map like if the Google play Services are installed. Maybe it will help you. I am using a simple FragmentActivity and inflating a layout containing a SupportedMapFragment.
Here's the code:
public class LocationActivity extends FragmentActivity {
private GoogleMap map;
private long rec_id;
private String address;
private Marker selectedLoc;
private boolean isSessionClosed;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
requestWindowFeature(Window.FEATURE_NO_TITLE);
BugSenseHandler.initAndStartSession(this, Constants.BugSenseKEY);
setContentView(R.layout.preview_location);
RelativeLayout cancel_btn = (RelativeLayout) findViewById(R.id.cancel_btn);
LinearLayout save_location_btn = (LinearLayout) findViewById(R.id.delete_btn);
save_location_btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (address != null) {
ReceiptDataSource r = new ReceiptDataSource();
r.updateReceiptLocation(rec_id, address);
Intent returnIntent = new Intent(getBaseContext(), EditReceiptActivity.class);
returnIntent.putExtra("result", address);
setResult(RESULT_OK, returnIntent);
finish();
} else {
Utils.showToast(getApplicationContext(), getString(R.string.c_unknownLocation), Toast.LENGTH_SHORT);
}
}
});
cancel_btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
onBackPressed();
}
});
if (map == null) {
map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();
if (isGoogleMapsInstalled()) {
if (map != null) {
retrieveLocation();
}
} else {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Install Google Maps");
builder.setCancelable(false);
builder.setPositiveButton("Install", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=com.google.android.apps.maps"));
startActivity(intent);
//Finish the activity so they can't circumvent the check
finish();
}
});
AlertDialog dialog = builder.create();
dialog.show();
}
}
}
@Override
protected void onResume() {
super.onResume();
if (isSessionClosed) {
BugSenseHandler.startSession(this);
isSessionClosed = false;
}
}
@Override
protected void onPause() {
super.onPause();
BugSenseHandler.closeSession(this);
isSessionClosed = true;
}
@Override
public void onBackPressed() {
map.clear();
super.onBackPressed();
}
private void retrieveLocation() {
Intent intent = getIntent();
address = intent.getStringExtra("location");
assert address != null;
if (address.equalsIgnoreCase("")) {
address = Utils.getCurrentLocation(LocationActivity.this);
}
rec_id = intent.getLongExtra("receipt_to_update_location", 0);
final Geocoder geocoder = new Geocoder(this, Locale.US);
double latitude = 0, longitude = 0;
try {
List<Address> loc = geocoder.getFromLocationName(address, 5);
if (loc.size() > 0) {
latitude = loc.get(0).getLatitude();
longitude = loc.get(0).getLongitude();
} else {
//Toast.makeText(getBaseContext(), getResources().getString(R.string.UnableToFindLocation),Toast.LENGTH_SHORT).show();
Utils.showToast(LocationActivity.this, getString(R.string.UnableToFindLocation), Toast.LENGTH_SHORT);
}
selectedLoc = map.addMarker(new MarkerOptions().position(new LatLng(latitude, longitude)).title(address).draggable(true));
map.setOnMarkerDragListener(new GoogleMap.OnMarkerDragListener() {
@Override
public void onMarkerDragStart(Marker marker) {
}
@Override
public void onMarkerDrag(Marker marker) {
}
@Override
public void onMarkerDragEnd(Marker marker) {
try {
List<Address> addresses = geocoder.getFromLocation(selectedLoc.getPosition().latitude, selectedLoc.getPosition().longitude, 1);
StringBuilder sb = new StringBuilder();
if (addresses.size() > 0) {
Address address = addresses.get(0);
if (address.getAddressLine(0) != null)
sb.append(address.getAddressLine(0)).append(", ");
if (address.getLocality() != null)
sb.append(address.getLocality()).append(", ");
if (address.getCountryName() != null)
sb.append(address.getCountryName());
}
address = sb.toString();
} catch (IOException e) {
}
}
});
map.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitude, longitude), 12));
// Zoom in, animating the camera.
map.animateCamera(CameraUpdateFactory.zoomTo(12), 2000, null);
} catch (IOException e) {
Log.e("IOException", e.getMessage());
//Toast.makeText(this, getString(R.string.c_unknownLocation), Toast.LENGTH_LONG).show();
Utils.showToast(LocationActivity.this, getString(R.string.c_unknownLocation), Toast.LENGTH_LONG);
}
}
public boolean isGoogleMapsInstalled() {
try {
ApplicationInfo info = getPackageManager().getApplicationInfo("com.google.android.apps.maps", 0);
return true;
} catch (PackageManager.NameNotFoundException e) {
return false;
}
}
And the corresponding layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:custom="http://schemas.android.com/apk/res/ro.gebs.captoom"
android:id="@+id/location_stuff"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/greenish"
android:orientation="vertical">
<RelativeLayout
android:id="@+id/location_header"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="@color/greenish">
<RelativeLayout
android:id="@+id/cancel_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="20dp"
android:background="@drawable/done_rounded_btn"
android:gravity="center">
<ro.gebs.captoom.utils.fonts.CustomFontTextView
android:id="@+id/retake_txt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginTop="10dp"
android:gravity="center"
android:paddingLeft="7dp"
android:paddingRight="7dp"
android:text="@string/cancel"
android:textAllCaps="true"
android:textColor="#FFFFFF"
android:textSize="14sp"
custom:fontName="Bold"/>
</RelativeLayout>
<ro.gebs.captoom.utils.fonts.CustomFontTextView
android:id="@+id/location_txt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:gravity="center_vertical"
android:text="@string/location_map"
android:textAllCaps="true"
android:textColor="@color/done_color"
android:textSize="16sp"
custom:fontName="SemiBold"/>
</RelativeLayout>
<fragment
android:layout_weight="6"
android:id="@+id/map"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_width="match_parent"
android:layout_height="0dp"
class="com.google.android.gms.maps.SupportMapFragment"/>
<RelativeLayout
android:id="@+id/save_location_layout"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="@color/greenish">
<LinearLayout
android:id="@+id/delete_btn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_marginLeft="25dp"
android:layout_marginRight="25dp"
android:background="@drawable/done_btn_selector"
android:orientation="horizontal"
android:paddingBottom="7dip"
android:paddingTop="7dip"
android:weightSum="7">
<ro.gebs.captoom.utils.fonts.CustomFontTextView
android:id="@+id/delete_txt"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="6"
android:background="@null"
android:paddingLeft="10dp"
android:text="@string/save_location"
android:textAllCaps="true"
android:textColor="@color/white"
android:textSize="16sp"
custom:fontName="Bold"/>
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:src="@drawable/input_map_white"/>
</LinearLayout>
</RelativeLayout>
</LinearLayout>
