Question

我正在尝试将地图添加到片段中，但我的IDE中没有出现错误的迹象，但该应用只是在设备中崩溃了。我不知道发生了什么我已经在控制台中启用了适用于Android的地图SDK，而我所做的只是将Android Studio生成的MapsActivity修改为MapsFragment。

MainActivity.kt

import android.support.v7.app.AppCompatActivity
import android.os.Bundle

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val fragmentTransaction = supportFragmentManager.beginTransaction()
        fragmentTransaction.add(R.id.fragment_container, MapsFragment.newInstance()).commit()
    }
}

MapsFragment.kt

import android.os.Bundle
import android.support.v4.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import com.google.android.gms.maps.*

import com.google.android.gms.maps.model.LatLng
import com.google.android.gms.maps.model.MarkerOptions

class MapsFragment : Fragment(), OnMapReadyCallback {

    private lateinit var mMap: GoogleMap

    companion object {
        fun newInstance() = MapsFragment()
    }

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        return inflater.inflate(R.layout.fragment_maps, container, false)

        val mapFragment = childFragmentManager.findFragmentById(R.id.map) as SupportMapFragment
        mapFragment.getMapAsync(this)
    }

    override fun onMapReady(googleMap: GoogleMap) {
        mMap = googleMap

        // Add a marker in Sydney and move the camera
        val sydney = LatLng(3.0414067, 101.5901829)
        mMap.addMarker(MarkerOptions().position(sydney).title("Marker in Sydney"))
        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney))
    }
}

fragment_maps.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MapsFragment">

    <fragment
        android:id="@+id/map"
        android:name="com.google.android.gms.maps.SupportMapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</FrameLayout>

我只有这个错误。

E/AndroidRuntime: FATAL EXCEPTION: Thread-7
    java.lang.NoClassDefFoundError: Failed resolution of: Lorg/apache/http/ProtocolVersion;
        at ep.b(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):3)
        at eo.a(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):4)
        at eq.a(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):55)
        at com.google.maps.api.android.lib6.drd.ap.a(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):11)
        at dx.a(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):17)
        at dx.run(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):65)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "org.apache.http.ProtocolVersion" on path: DexPathList[[zip file "/system/priv-app/PrebuiltGmsCore/app_chimera/m/MapsDynamite.apk"],nativeLibraryDirectories=[/data/user_de/0/com.google.android.gms/app_chimera/m/00000006/n/x86_64, /system/lib64]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at ad.loadClass(:com.google.android.gms.dynamite_dynamiteloader@13280056@13.2.80 (040800-211705629):25)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at ep.b(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):3) 
        at eo.a(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):4) 
        at eq.a(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):55) 
        at com.google.maps.api.android.lib6.drd.ap.a(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):11) 
        at dx.a(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):17) 
        at dx.run(:com.google.android.gms.dynamite_mapsdynamite@13280056@13.2.80 (040800-211705629):65)

Answer 1

如果目标api级别为28或更高，则必须在清单中包括：

<uses-library android:name="org.apache.http.legacy" android:required="false"/>

供参考：https://issuetracker.google.com/issues/79478779

Answer 2

在Android 6.0中，Google已删除了对Apache HTTP客户端的支持，并且从Android 9开始，该库已从bootclasspath中删除，并且默认情况下不适用于应用程序。

面向Android 9及更高版本的应用可以将以下内容添加到其AndroidManifest.xml中：

在build.gradle中，您需要添加它以支持android 6.0以上的apache

 useLibrary 'org.apache.http.legacy'

在Android Manifest文件中声明要支持9.0以上版本

 <uses-library android:name="org.apache.http.legacy" android:required="false"/>

API 28中的Fragment中的MapFragment崩溃

2 个答案: