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Java android中的尝试捕捉错误_Java_Android_Google Maps_Try Catch - Fatal编程技术网

Java android中的尝试捕捉错误

Java android中的尝试捕捉错误,java,android,google-maps,try-catch,Java,Android,Google Maps,Try Catch,我正在开发一个android应用程序,在一个片段中实现地图。然而,我有一个问题,尝试和捕捉块。我不断收到错误Exception'com.google.android.gms.common.GooglePlayServicesNotAvailableException“从未在相应的try块中抛出。如何解决此错误?提前谢谢 代码如下: import android.support.v4.app.Fragment; import android.support.v7.app.AppCompatAct

我正在开发一个android应用程序,在一个片段中实现地图。然而,我有一个问题,尝试和捕捉块。我不断收到错误
Exception'com.google.android.gms.common.GooglePlayServicesNotAvailableException
“从未在相应的try块中抛出。如何解决此错误?提前谢谢

代码如下:

 import android.support.v4.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;

import com.google.android.gms.common.GooglePlayServicesNotAvailableException;
import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapView;
import com.google.android.gms.maps.MapsInitializer;
import com.google.android.gms.maps.model.LatLng;

public class MapActivity extends Fragment {

    MapView mapView;
    GoogleMap map;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_location, container, false);

        // Gets the MapView from the XML layout and creates it
        mapView = (MapView) v.findViewById(R.id.mapview);
        mapView.onCreate(savedInstanceState);

        // Gets to GoogleMap from the MapView and does initialization stuff
        map = mapView.getMap();
        map.getUiSettings().setMyLocationButtonEnabled(false);
        map.setMyLocationEnabled(true);

        // Needs to call MapsInitializer before doing any CameraUpdateFactory calls
        try  {
            MapsInitializer.initialize(this.getActivity());
        } catch (GooglePlayServicesNotAvailableException e) {
            e.printStackTrace();
        }

        // Updates the location and zoom of the MapView
        CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(new LatLng(43.1, -87.9), 10);
        map.animateCamera(cameraUpdate);

        return v;
    }

    @Override
    public void onResume() {
        mapView.onResume();
        super.onResume();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        mapView.onDestroy();
    }

    @Override
    public void onLowMemory() {
        super.onLowMemory();
        mapView.onLowMemory();
    }

}
xml文件:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <com.google.android.gms.maps.MapView android:id="@+id/mapview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

</LinearLayout>

自从google service lib版本15以来,您尝试捕获的异常不再抛出

有关解决方案,请参阅

链接问题的代码:

if (MapsInitializer.initialize(ctx) != ConnectionResult.SUCCESS) {
    // Handle the error
}

自google service lib版本15以来,您尝试捕获的异常不再抛出

有关解决方案,请参阅

链接问题的代码:

if (MapsInitializer.initialize(ctx) != ConnectionResult.SUCCESS) {
    // Handle the error
}

不要使用try-catch。使用以下代码处理错误:

if (MapsInitializer.initialize(activity) != ConnectionResult.SUCCESS) {
    // Do something here
}

不要使用try-catch。使用以下代码处理错误:

if (MapsInitializer.initialize(activity) != ConnectionResult.SUCCESS) {
    // Do something here
}

如链接底部所述

下面是正确处理此问题的示例代码

int checkGooglePlayServices =    GooglePlayServicesUtil.isGooglePlayServicesAvailable(mContext);
if (checkGooglePlayServices != ConnectionResult.SUCCESS) {
// google play services is missing!!!!
/* Returns status code indicating whether there was an error. 
Can be one of following in ConnectionResult: SUCCESS, SERVICE_MISSING, SERVICE_VERSION_UPDATE_REQUIRED, SERVICE_DISABLED, SERVICE_INVALID.
*/
   GooglePlayServicesUtil.getErrorDialog(checkGooglePlayServices, mActivity, 1122).show();
}

请参见该链接底部所述的

下面是正确处理此问题的示例代码

int checkGooglePlayServices =    GooglePlayServicesUtil.isGooglePlayServicesAvailable(mContext);
if (checkGooglePlayServices != ConnectionResult.SUCCESS) {
// google play services is missing!!!!
/* Returns status code indicating whether there was an error. 
Can be one of following in ConnectionResult: SUCCESS, SERVICE_MISSING, SERVICE_VERSION_UPDATE_REQUIRED, SERVICE_DISABLED, SERVICE_INVALID.
*/
   GooglePlayServicesUtil.getErrorDialog(checkGooglePlayServices, mActivity, 1122).show();
}

请参见此

为什么不使用getMapAsync并侦听onMapReady(谷歌地图),如示例中所述:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_maps);
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
            .findFragmentById(R.id.map);
    mapFragment.getMapAsync(this);
}
那么在一个月内你就可以做剩下的了

    @Override
public void onMapReady(GoogleMap map) {
    // Add a marker in Sydney, Australia, and move the camera.
    this.map = map;
    this.map.setOnMarkerClickListener(this);
    moveCamera(anyLatLngValue);
}
以及相应的函数:您还可以输入zoomFactor

    private void moveCamera(LatLng pos){
  map.moveCamera(CameraUpdateFactory.newLatLng(pos));
  map.moveCamera(CameraUpdateFactory.newCameraPosition(CameraPosition.fromLatLngZoom(pos, 15)));
}

那里不需要初始化

为什么不使用getMapAsync并侦听onMapReady(谷歌地图),如示例中所述:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_maps);
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
            .findFragmentById(R.id.map);
    mapFragment.getMapAsync(this);
}
那么在一个月内你就可以做剩下的了

    @Override
public void onMapReady(GoogleMap map) {
    // Add a marker in Sydney, Australia, and move the camera.
    this.map = map;
    this.map.setOnMarkerClickListener(this);
    moveCamera(anyLatLngValue);
}
以及相应的函数:您还可以输入zoomFactor

    private void moveCamera(LatLng pos){
  map.moveCamera(CameraUpdateFactory.newLatLng(pos));
  map.moveCamera(CameraUpdateFactory.newCameraPosition(CameraPosition.fromLatLngZoom(pos, 15)));
}
那里不需要初始化

您的意思是永远不会在相应的try块中抛出??您面临的错误是什么?您的意思是永远不会在相应的try块中抛出??你面临的错误是什么?