Android:A/libc:tid 18372中的致命信号11(SIGSEGV),代码1,故障地址0x8
我正在使用mapbox sdk测试一个应用程序,并使用此链接创建了一个名为“GoogleLocationEngine”的类,以跟踪用户位置(Google API),而不是mapbox的位置引擎提供程序: 但是应用程序给了我这个错误(通常是在后台): 虽然在使用mapbox sdk时:Android:A/libc:tid 18372中的致命信号11(SIGSEGV),代码1,故障地址0x8,android,mapbox,fatal-error,Android,Mapbox,Fatal Error,我正在使用mapbox sdk测试一个应用程序,并使用此链接创建了一个名为“GoogleLocationEngine”的类,以跟踪用户位置(Google API),而不是mapbox的位置引擎提供程序: 但是应用程序给了我这个错误(通常是在后台): 虽然在使用mapbox sdk时: LocationEngineProvider(context).obtainBestLocationEngineAvailable() 方法,错误仍然会出现,我不知道如何跟踪它,所以我如何解决这个问题?我的设
LocationEngineProvider(context).obtainBestLocationEngineAvailable()
方法,错误仍然会出现,我不知道如何跟踪它,所以我如何解决这个问题?我的设备是三星Galaxy Note 4(SM-N900C)
以下是我的MainActivity.java:
import android.location.Location;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.Toast;
import com.google.android.gms.location.LocationCallback;
import com.google.android.gms.location.LocationResult;
import com.mapbox.android.core.location.LocationEngine;
import com.mapbox.android.core.location.LocationEngineListener;
import com.mapbox.android.core.location.LocationEnginePriority;
import com.mapbox.android.core.permissions.PermissionsListener;
import com.mapbox.android.core.permissions.PermissionsManager;
import com.mapbox.mapboxsdk.Mapbox;
import com.mapbox.mapboxsdk.camera.CameraUpdateFactory;
import com.mapbox.mapboxsdk.geometry.LatLng;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.plugins.locationlayer.LocationLayerPlugin;
import com.mapbox.mapboxsdk.plugins.locationlayer.modes.CameraMode;
import com.mapbox.mapboxsdk.plugins.locationlayer.modes.RenderMode;
import java.util.List;
public class MainActivity extends AppCompatActivity implements
LocationEngineListener,
PermissionsListener{
private MapView mapView;
private MapboxMap map;
private PermissionsManager permissionsManager;
private LocationEngine locationEngine;
private Location originLocation;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Mapbox.getInstance(this, getString(R.string.access_token));
setContentView(R.layout.activity_main);
mapView = findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(mapboxMap -> {
map = mapboxMap;
enableLocation();
});
}
private void enableLocation(){
if(PermissionsManager.areLocationPermissionsGranted(this)){
initializeLocationEngine();
initializeLocationLayer();
} else {
permissionsManager = new PermissionsManager(this);
permissionsManager.requestLocationPermissions(this);
}
}
@SuppressWarnings("MissingPermission")
private void initializeLocationEngine(){
locationEngine = GoogleLocationEngine.getLocationEngine(this);
locationEngine.setPriority(LocationEnginePriority.HIGH_ACCURACY);
locationEngine.activate();
Location lastLocation = locationEngine.getLastLocation();
if(lastLocation != null){
originLocation = lastLocation;
setCameraPosition(lastLocation);
} else {
locationEngine.addLocationEngineListener(this);
}
}
@SuppressWarnings("MissingPermission")
private void initializeLocationLayer(){
LocationLayerPlugin locationLayerPlugin = new LocationLayerPlugin(mapView, map, locationEngine);
locationLayerPlugin.setLocationLayerEnabled(true);
locationLayerPlugin.setCameraMode(CameraMode.TRACKING);
locationLayerPlugin.setRenderMode(RenderMode.NORMAL);
}
private void setCameraPosition(Location location){
map.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(location.getLatitude() , location.getLongitude()) , 13.0));
}
@SuppressWarnings("MissingPermission")
@Override
public void onConnected() {
Log.d("onConnected" , "is Connected");
locationEngine.requestLocationUpdates();
}
@Override
public void onLocationChanged(Location location) {
if(location != null){
originLocation = location;
setCameraPosition(location);
} else
Toast.makeText(this, "Location is null", Toast.LENGTH_SHORT).show();
}
@Override
public void onExplanationNeeded(List<String> permissionsToExplain) {
//present a toast or a dialog
Toast.makeText(this, permissionsToExplain.get(0) , Toast.LENGTH_SHORT).show();
}
@Override
public void onPermissionResult(boolean granted) {
if(granted){
enableLocation();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
permissionsManager.onRequestPermissionsResult(requestCode , permissions , grantResults);
}
@Override
public void onStart() {
super.onStart();
mapView.onStart();
}
@Override
public void onResume() {
super.onResume();
mapView.onResume();
}
@Override
public void onPause() {
super.onPause();
mapView.onPause();
}
@Override
public void onStop() {
super.onStop();
mapView.onStop();
}
@Override
public void onLowMemory() {
super.onLowMemory();
mapView.onLowMemory();
}
@Override
protected void onDestroy() {
super.onDestroy();
mapView.onDestroy();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mapView.onSaveInstanceState(outState);
}
}
这不管用!我原以为这个方法对我有效,但当我评论它并再次测试我的应用程序时,它没有显示我的位置,当我使用我的GoogleLocationEngine类时,它工作了,但仍然存在相同的错误。
亲爱的朋友们,有什么想法吗?问题已经解决了强> 根据本段: 在各自的活动方法中包含位置层onStart()和onStop()生命周期事件非常重要。这可以防止内存泄漏,并减少电池消耗。该插件支持新的LifecycleObserver API,通过在活动中添加插件作为生命周期观察者,您将不需要手动处理生命周期 源链接: 我应该在我的函数中使用这些方法:
locationPlugin = new LocationLayerPlugin(mapView, mapboxMap, locationEngine);
locationPlugin.setLocationLayerEnabled(true);
locationPlugin.setCameraMode(CameraMode.TRACKING);
locationPlugin.setRenderMode(RenderMode.COMPASS);
Lifecycle lifecycle = getLifecycle();
lifecycle.addObserver(locationPlugin);
在我的onStart()中:
也在我的桌面()中:
然后致命信号错误现在消失。
我必须感谢mapbox支持团队对我的支持和解决此问题。谢谢!这让我意识到我需要为我的
SymbolManager
和LineManager
调用onDestroy!
locationEngine = new LocationEngineProvider(this).obtainBestLocationEngineAvailable();
locationPlugin = new LocationLayerPlugin(mapView, mapboxMap, locationEngine);
locationPlugin.setLocationLayerEnabled(true);
locationPlugin.setCameraMode(CameraMode.TRACKING);
locationPlugin.setRenderMode(RenderMode.COMPASS);
Lifecycle lifecycle = getLifecycle();
lifecycle.addObserver(locationPlugin);
@Override
public void onStart() {
super.onStart();
mapView.onStart();
if(locationEngine != null){
locationEngine.requestLocationUpdates();
locationEngine.addLocationEngineListener(this);
}
}
@Override
public void onStop() {
super.onStop();
mapView.onStop();
if(locationEngine != null){
locationEngine.removeLocationEngineListener(this);
locationEngine.removeLocationUpdates();
}
}