Question

因此，我正在开发一个android应用程序，我为google maps编写了代码，该代码一段时间后效果很好。但是，比起我连接Firebase，这给了我一些错误，这导致我不得不升级升级（以前我使用play-services-gcm：12.0.1）。现在，我正在研究以下依赖项：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.example.getdevicelocation"
        minSdkVersion 21
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {

    implementation 'com.google.firebase:firebase-appindexing:10.0.1'
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation "com.google.android.gms:play-services-gcm:15.0.1"
    implementation 'com.google.firebase:firebase-core:16.0.0'

}

apply plugin: 'com.google.gms.google-services'

我遇到以下错误。

error: package com.google.android.gms.maps does not exist

我知道这意味着在我提供的库中找不到该软件包。以下是我的mapsactivity.xml代码

package com.example.getdevicelocation;

import android.support.v4.app.FragmentActivity;
import android.os.Bundle;

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.model.BitmapDescriptor;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        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);
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;
        mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
        // Add a marker in Sydney and move the camera
        LatLng loc_1 = new LatLng(30.275285, 77.047580);
        mMap.addMarker(new MarkerOptions().position(loc_1).title("Open Dumping site unattended since 2 months").
                icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE)));
        mMap.moveCamera(CameraUpdateFactory .newLatLngZoom(loc_1, 12));

    }
}

在较新的依赖项中是否有另一种访问Google地图的方法，我的代码有问题。

Answer 1

bowStringLinerenderer = bowString.AddComponent<LineRenderer>();
    bowStringLinerenderer.SetVertexCount(3);
    bowStringLinerenderer.SetWidth(0.05F, 0.05F);
    bowStringLinerenderer.useWorldSpace = false;
    bowStringLinerenderer.material = Resources.Load ("Materials/bowStringMaterial") as Material;
    bowStringPosition = new List<Vector3> ();
    bowStringPosition.Add(new Vector3 (-0.44f, 1.43f, 2f));
    bowStringPosition.Add(new Vector3 (-0.44f, -0.06f, 2f));
    bowStringPosition.Add(new Vector3 (-0.43f, -1.32f, 2f));
    bowStringLinerenderer.SetPosition (0, bowStringPosition [0]);
    bowStringLinerenderer.SetPosition (1, bowStringPosition [1]);
    bowStringLinerenderer.SetPosition (2, bowStringPosition [2]);
    arrowStartX = 0.7f;

Answer 2

错误：包com.google.android.gms.maps不存在

您应该添加

implementation "com.google.android.gms:play-services-maps:15.0.0" //16.0.0

然后 Clean-Rebuild-Run 。

仅供参考

您应该升级 firebase-appindexing 版本。

示例

implementation 'com.google.firebase:firebase-appindexing:16.0.2'

如何在Android Studio中的playstore play-services-gcm：15.0.1中访问Google地图？

2 个答案: