【发布时间】：2016-03-31 00:21:13
【问题描述】：
我正在尝试将我的 firebase 数据库与 Google 地图集成，但我遇到了问题。这是我的代码：
package com.test.googlemap;
import android.Manifest;
import android.content.pm.PackageManager;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationManager;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import com.firebase.client.DataSnapshot;
import com.firebase.client.Firebase;
import com.firebase.client.FirebaseError;
import com.firebase.client.ValueEventListener;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.UiSettings;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
private static GoogleMap mMap;
private GoogleApiClient mGoogleApiClient;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Firebase.setAndroidContext(this);
setContentView(R.layout.activity_maps);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
/*if (mGoogleApiClient == null) {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}*/
}
/**
* Manipulates the map once available.
* This callback is triggered when the map is ready to be used.
* This is where we can add markers or lines, add listeners or move the camera. In this case,
* we just add a marker near Sydney, Australia.
* If Google Play services is not installed on the device, the user will be prompted to install
* it inside the SupportMapFragment. This method will only be triggered once the user has
* installed Google Play services and returned to the app.
*/
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
UiSettings UiSettings = googleMap.getUiSettings();
UiSettings.setZoomControlsEnabled(true);
LocationManager service = (LocationManager) getSystemService(LOCATION_SERVICE);
Criteria criteria = new Criteria();
String provider = service.getBestProvider(criteria, true);
//Location myLocation = service.getLastKnownLocation(provider);
mMap.setMyLocationEnabled(true);
//double latitude = myLocation.getLatitude();
//double longitude = myLocation.getLongitude();
//LatLng startingPosition = new LatLng(latitude, longitude);
LatLng sydney = new LatLng(-34, 151);
createMarker();
//mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
}
private void createMarker() {
Firebase ref = new Firebase("https://shining-fire-3472.firebaseio.com/locations");
//Query queryRef = ref.orderByChild("latitude");
ref.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
for (DataSnapshot userSnapshot : dataSnapshot.getChildren()) {
markerLocation marker = userSnapshot.getValue(markerLocation.class);
Double lat = Double.parseDouble(marker.getLatitude());
Double log = Double.parseDouble(marker.getLongtitude());
LatLng latLng = new LatLng(lat, log);
mMap.addMarker(new MarkerOptions().position(latLng));
}
}
@Override
public void onCancelled(FirebaseError firebaseError) {
}
});
}
}
这里是appbuild gradle：
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.2"
defaultConfig {
applicationId "com.test.googlemap"
minSdkVersion 17
targetSdkVersion 23
versionCode 1
versionName "1.0"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
packagingOptions {
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE-FIREBASE.txt'
exclude 'META-INF/NOTICE'
exclude 'META-INF/services/com.fasterxml.jackson.core.ObjectCodec'
}
dexOptions {
preDexLibraries = false
incremental = true;
javaMaxHeapSize "4g"
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.2.0'
compile 'com.google.android.gms:play-services:8.4.0'
compile files('libs/firebase-client-android-2.5.2.jar')
}
我正在尝试检索标记位置对象以创建将显示地图的自定义标记。该项目将同步，但每当我尝试构建 APK 时，我都会收到此错误：
错误：任务 ':app:dexDebug' 执行失败。> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files (x86 )\Java\jdk1.8.0_60\bin\java.exe'' 以非零退出值 1 结束
我已经尝试了其他类似问题的所有修复，但没有一个对我有用。
【问题讨论】：
-
尝试使用 gradlew 在命令行上构建并传递标志 --debug 和 --stacktrace 以获取更多详细信息。
标签： java android google-maps firebase