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Android,无法解析方法 getMap()

转载 作者:太空狗 更新时间:2023-10-29 15:29:21 27 4
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我对这段代码有疑问,“无法解析方法 getMap()。我没有找到问题出在哪里,请需要代码方面的帮助,我使用 Android Studio 并且需要使用 Json 获取 mySQL 的标记位置。

    googleMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.googleMap)).getMap();`

这里是完整的代码

 public class MainActivity extends FragmentActivity {

private GoogleMap googleMap;
private Double Latitude = 0.00;
private Double Longitude = 0.00;
private GoogleApiClient client2;

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

if (Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}

ArrayList<HashMap<String, String>> location = null;
String url = "http://www.evil.cl/getLatLon.php";
try {

JSONArray data = new JSONArray(getHttpGet(url));

location = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map;

for (int i = 0; i < data.length(); i++) {
JSONObject c = data.getJSONObject(i);

map = new HashMap<String, String>();
map.put("LocationID", c.getString("LocationID"));
map.put("Latitude", c.getString("Latitude"));
map.put("Longitude", c.getString("Longitude"));
map.put("LocationName", c.getString("LocationName"));
location.add(map);

}

} catch (JSONException e) {
e.printStackTrace();
}

googleMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.googleMap)).getMap();

Latitude = Double.parseDouble(location.get(0).get("Latitude").toString());
Longitude = Double.parseDouble(location.get(0).get("Longitude").toString());
LatLng coordinate = new LatLng(Latitude, Longitude);
googleMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(coordinate, 17));

for (int i = 0; i < location.size(); i++) {
Latitude = Double.parseDouble(location.get(i).get("Latitude").toString());
Longitude = Double.parseDouble(location.get(i).get("Longitude").toString());
String name = location.get(i).get("LocationName").toString();
MarkerOptions marker = new MarkerOptions().position(new LatLng(Latitude, Longitude)).title(name);
googleMap.addMarker(marker);
}

client2 = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
}

public static String getHttpGet(String url) {
StringBuilder str = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url);
try {
HttpResponse response = client.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200) {
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
str.append(line);
}
} else {
Log.e("Log", "Failed to download result..");
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return str.toString();
}

@Override
public void onStart() {
super.onStart();
client2.connect();
Action viewAction = Action.newAction(
Action.TYPE_VIEW,
"Main Page",


Uri.parse("http://host/path"),

Uri.parse("android-app://com.example.hector.prueba1/http/host/path")
);
AppIndex.AppIndexApi.start(client2, viewAction);
}

@Override
public void onStop() {
super.onStop();
Action viewAction = Action.newAction(
Action.TYPE_VIEW,
"Main Page",
Uri.parse("http://host/path"),
Uri.parse("android-app://com.example.hector.prueba1/http/host/path")
);
AppIndex.AppIndexApi.end(client2, viewAction);
client2.disconnect();
}
}

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