Question

我过去几个小时一直在努力让谷歌地图工作，但似乎我做错了什么..

让我与您分享一些信息..

这是我的工作..

MainActivity.java类

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

public class MainActivity extends Activity {

    // Google Map
    private GoogleMap googleMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        try {
            // Loading map
            initilizeMap();

            // Changing map type
            googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
            // googleMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
            // googleMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
            // googleMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
            // googleMap.setMapType(GoogleMap.MAP_TYPE_NONE);

            // Showing / hiding your current location
            googleMap.setMyLocationEnabled(true);

            // Enable / Disable zooming controls
            googleMap.getUiSettings().setZoomControlsEnabled(false);

            // Enable / Disable my location button
            googleMap.getUiSettings().setMyLocationButtonEnabled(true);

            // Enable / Disable Compass icon
            googleMap.getUiSettings().setCompassEnabled(true);

            // Enable / Disable Rotate gesture
            googleMap.getUiSettings().setRotateGesturesEnabled(true);

            // Enable / Disable zooming functionality
            googleMap.getUiSettings().setZoomGesturesEnabled(true);

            double latitude = 17.385044;
            double longitude = 78.486671;

            // lets place some 10 random markers
            for (int i = 0; i < 10; i++) {
                // random latitude and logitude
                double[] randomLocation = createRandLocation(latitude,
                        longitude);

                // Adding a marker
                MarkerOptions marker = new MarkerOptions().position(
                        new LatLng(randomLocation[0], randomLocation[1]))
                        .title("Hello Maps " + i);

                Log.e("Random", "> " + randomLocation[0] + ", "
                        + randomLocation[1]);

                // changing marker color
                if (i == 0)
                    marker.icon(BitmapDescriptorFactory
                            .defaultMarker(BitmapDescriptorFactory.HUE_AZURE));
                if (i == 1)
                    marker.icon(BitmapDescriptorFactory
                            .defaultMarker(BitmapDescriptorFactory.HUE_BLUE));
                if (i == 2)
                    marker.icon(BitmapDescriptorFactory
                            .defaultMarker(BitmapDescriptorFactory.HUE_CYAN));
                if (i == 3)
                    marker.icon(BitmapDescriptorFactory
                            .defaultMarker(BitmapDescriptorFactory.HUE_GREEN));
                if (i == 4)
                    marker.icon(BitmapDescriptorFactory
                            .defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
                if (i == 5)
                    marker.icon(BitmapDescriptorFactory
                            .defaultMarker(BitmapDescriptorFactory.HUE_ORANGE));
                if (i == 6)
                    marker.icon(BitmapDescriptorFactory
                            .defaultMarker(BitmapDescriptorFactory.HUE_RED));
                if (i == 7)
                    marker.icon(BitmapDescriptorFactory
                            .defaultMarker(BitmapDescriptorFactory.HUE_ROSE));
                if (i == 8)
                    marker.icon(BitmapDescriptorFactory
                            .defaultMarker(BitmapDescriptorFactory.HUE_VIOLET));
                if (i == 9)
                    marker.icon(BitmapDescriptorFactory
                            .defaultMarker(BitmapDescriptorFactory.HUE_YELLOW));

                googleMap.addMarker(marker);

                // Move the camera to last position with a zoom level
                if (i == 9) {
                    CameraPosition cameraPosition = new CameraPosition.Builder()
                            .target(new LatLng(randomLocation[0],
                                    randomLocation[1])).zoom(15).build();

                    googleMap.animateCamera(CameraUpdateFactory
                            .newCameraPosition(cameraPosition));
                }
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    @Override
    protected void onResume() {
        super.onResume();
        initilizeMap();
    }

    /**
     * function to load map If map is not created it will create it for you
     * */
    private void initilizeMap() {
        if (googleMap == null) {
            googleMap = ((MapFragment) getFragmentManager().findFragmentById(
                    R.id.map)).getMap();

            // check if map is created successfully or not
            if (googleMap == null) {
                Toast.makeText(getApplicationContext(),
                        "Sorry! unable to create maps", Toast.LENGTH_SHORT)
                        .show();
            }
        }
    }

    /*
     * creating random postion around a location for testing purpose only
     */
    private double[] createRandLocation(double latitude, double longitude) {

        return new double[] { latitude + ((Math.random() - 0.5) / 500),
                longitude + ((Math.random() - 0.5) / 500),
                150 + ((Math.random() - 0.5) * 10) };
    }
}

这是我的XMl文件..

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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=".MainActivity" >

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

</RelativeLayout>

这是我的清单文件..

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="info.androidhive.googlemapsv2"
    android:versionCode="1"
    android:versionName="1.0" >

    <permission
        android:name="info.androidhive.googlemapsv2.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />

    <uses-permission android:name="info.androidhive.googlemapsv2.permission.MAPS_RECEIVE" />

    <uses-sdk
        android:minSdkVersion="9"
        android:targetSdkVersion="18" />

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

    <!-- Required to show current location -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

    <!-- Required OpenGL ES 2.0. for Maps V2 -->
    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

    <!-- Requires OpenGL ES version 2 -->
    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name">
        <activity
            android:name="info.androidhive.googlemapsv2.MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppBaseTheme">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <!-- Goolge API Key -->
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyBZMlkOv4sj-M5JO9p6wksdax4TEjDVLgo" />
    </application>

</manifest>

我正在暂停AndroidHive教程＆lt; http://www.androidhive.info/2013/08/android-working-with-google-maps-v2/＆gt;

我得到的错误..

我的错误日志::

12-24 13:32:56.062: E/AndroidRuntime(7014): FATAL EXCEPTION: main
12-24 13:32:56.062: E/AndroidRuntime(7014): java.lang.RuntimeException: Unable to start activity ComponentInfo{info.androidhive.googlemapsv2/info.androidhive.googlemapsv2.MainActivity}: android.view.InflateException: Binary XML file line #8: Error inflating class fragment
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.app.ActivityThread.access$1500(ActivityThread.java:117)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.os.Handler.dispatchMessage(Handler.java:99)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.os.Looper.loop(Looper.java:130)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.app.ActivityThread.main(ActivityThread.java:3687)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at java.lang.reflect.Method.invokeNative(Native Method)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at java.lang.reflect.Method.invoke(Method.java:507)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at dalvik.system.NativeStart.main(Native Method)
12-24 13:32:56.062: E/AndroidRuntime(7014): Caused by: android.view.InflateException: Binary XML file line #8: Error inflating class fragment
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:581)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:623)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:209)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.app.Activity.setContentView(Activity.java:1657)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at info.androidhive.googlemapsv2.MainActivity.onCreate(MainActivity.java:24)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
12-24 13:32:56.062: E/AndroidRuntime(7014):     ... 11 more
12-24 13:32:56.062: E/AndroidRuntime(7014): Caused by: java.lang.ClassNotFoundException: android.view.fragment in loader dalvik.system.PathClassLoader[/data/app/info.androidhive.googlemapsv2-2.apk]
12-24 13:32:56.062: E/AndroidRuntime(7014):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.view.LayoutInflater.createView(LayoutInflater.java:471)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.view.LayoutInflater.onCreateView(LayoutInflater.java:549)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66)
12-24 13:32:56.062: E/AndroidRuntime(7014):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568)
12-24 13:32:56.062: E/AndroidRuntime(7014):     ... 20 more

我已经完成了教程中的每个部分。此外，我还咨询了包括谷歌在内的其他网站。

对此的任何帮助都将受到高度赞赏。如果我需要更多的东西，请告诉我。

谢谢！

Answer 1

确保您已为支持地图片段添加了Google Play服务库和android-support-v4库。

enter image description here

同样在您的InitializeMap()方法中，因为您使用SupportMapFragment同样的方式，您需要使用SupportMapFragment初始化地图，而不是MapFragment。更改您的代码如下：

  private void initilizeMap() {
    if (googleMap == null) {
        googleMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(
                R.id.map)).getMap();

        // check if map is created successfully or not
        if (googleMap == null) {
            Toast.makeText(getApplicationContext(),
                    "Sorry! unable to create maps", Toast.LENGTH_SHORT)
                    .show();
        }
    }
}

<强>编辑：

在您的MainActivity中，除了Activity之外，请尝试扩展FragmentActivity，如下所示

 public class MainActivity extends FragmentActivity {

Answer 2

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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=".MainActivity" >

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

</RelativeLayout>

在您的xml中，您使用的是SupportMapFragment，但在使用getFragmentManager()的代码中，您应该使用getSupportFragmentManager()

private void initilizeMap() {
        if (googleMap == null) {
            googleMap = ((MapFragment) `getSupportFragmentManager`().findFragmentById(
                    R.id.map)).getMap();

            // check if map is created successfully or not
            if (googleMap == null) {
                Toast.makeText(getApplicationContext(),
                        "Sorry! unable to create maps", Toast.LENGTH_SHORT)
                        .show();
            }
        }
    }

Answer 3

右键单击项目选择Android Tools -> Add Support Library，将支持库添加到项目中

并在您的活动中将Activity更改为android.support.v4.app.FragmentActivity

public class MainActivity extends android.support.v4.app.FragmentActivity{

并将初始化更改为此

if (googleMap == null) {
    googleMap = ((SupportMapFragment) getSupportFragmentManager()
            .findFragmentById(R.id.map)).getMap();
}

还添加此导入

import com.google.android.gms.maps.SupportMapFragment;

Answer 4

当我这样做时，我感到同样的问题。但之后它对我有用。检查我的代码以显示地图。获得地图后，您可以继续下一步。

activity_main.xml中

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

    <Button
        android:id="@+id/button1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Button"/>

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

</LinearLayout>

MainActivity.java

package com.example.googlemap;

import android.os.Bundle;
import android.view.Menu;

public class MainActivity extends android.support.v4.app.FragmentActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}

的AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.googlemap"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />

    <permission
        android:name="com.example.googlemap.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />

    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

    <uses-permission android:name="com.example.googlemap.permission.MAPS_RECEIVE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />


    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <uses-library android:name="com.google.android.maps" />
        <activity
            android:name="com.example.googlemap.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyAP8K9rStcxbXNO7jRD_FhzDiNbB8AWEwA"/>
    </application>

</manifest>

Answer 5

更改布局

类= “com.google.android.maps.SupportMapFragment” 至类= “com.google.android.gms.maps.SupportMapFragment”

您需要在应用程序标记

下的mainfest文件中定义它

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name">

<uses-library android:name="com.google.android.maps" />

<activity
    android:name="com.example.androidhackergooglemap.MainActivity"
    android:label="@string/app_name"
    android:theme="@style/AppBaseTheme">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />

        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>

<!-- Goolge API Key -->
<meta-data
    android:name="com.google.android.maps.v2.API_KEY"
    android:value="AIzaSyCv_j5f8gEkjjtU0BLPaLsz1iWzIOyUCBg" />

Android谷歌地图版本2

5 个答案: