将 Google 地图添加到 android 应用程序 [关闭]

Question

我正在尝试在 android 中创建地图。我有以下代码和日志猫错误消息。

我的 MapSearch.java 文件：

public class MapSearch extends FragmentActivity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.map_search);
  }
}

我的 map_search.xml 文件：

<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/mapsearch"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:name="com.google.android.gms.maps.MapFragment"/>

来自 logcat 的错误消息：

02-26 17:09:04.863: E/AndroidRuntime(17436): FATAL EXCEPTION: main
02-26 17:09:04.863: E/AndroidRuntime(17436): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.pir.mobileprivateoffersretrievalV2/com.pir.percyclient.MapSearch}: android.view.InflateException: Binary XML file line #3: Error inflating class fragment
02-26 17:09:04.863: E/AndroidRuntime(17436):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at android.app.ActivityThread.access$600(ActivityThread.java:141)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at android.os.Handler.dispatchMessage(Handler.java:99)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at android.os.Looper.loop(Looper.java:137)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at android.app.ActivityThread.main(ActivityThread.java:5103)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at java.lang.reflect.Method.invokeNative(Native Method)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at java.lang.reflect.Method.invoke(Method.java:525)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at dalvik.system.NativeStart.main(Native Method)
02-26 17:09:04.863: E/AndroidRuntime(17436): Caused by: android.view.InflateException: Binary XML file line #3: Error inflating class fragment
02-26 17:09:04.863: E/AndroidRuntime(17436):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
02-26 17:09:04.863: E/AndroidRuntime(17436):    at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
...

Answer 1

您的 android 清单中没有定义 Api Key。没有它，您的地图将无法加载。其次，您没有在您的 android 清单中定义所有权限。 OpenGL，这也是必须的。请参阅此代码。这会对你有所帮助..:)

我的主要活动：

public class MainActivity extends FragmentActivity {
private static final int GPS_ERRORDIALOG_REQUEST = 9001;
Button btn1;
EditText et1;
EditText et2;

GoogleMap map;

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

    if (servicesOK()) {
        Toast.makeText(this, "Ready to map!!", Toast.LENGTH_LONG).show();
        setContentView(R.layout.testmap);

    } else {
        setContentView(R.layout.activitymain);

    }

}

@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;
}

public boolean servicesOK() {

    int isAvailable = GooglePlayServicesUtil
            .isGooglePlayServicesAvailable(this);

    if (isAvailable == ConnectionResult.SUCCESS) {

        return true;

    } else if (GooglePlayServicesUtil.isUserRecoverableError(isAvailable)) {

        Dialog dialog = GooglePlayServicesUtil.getErrorDialog(isAvailable,
                this, GPS_ERRORDIALOG_REQUEST);
        dialog.show();

    } else {

        Toast.makeText(this, "Cant connect!!", Toast.LENGTH_SHORT).show();

    }
    return false;
}
}

我的布局：

xmlns:maps="http://schemas.android.com/apk/res-auto"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />

最后是 Android 清单。这是您必须考虑的最重要的想法：

package="com.mike.maps"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="10"
    android:targetSdkVersion="18" />

<permission
    android:name="com.mike.maps.permission.MAPS_RECEIVE"
    android:protectionLevel="signature" />

<uses-permission android:name="com.mike.maps.permission.MAPS_RECEIVE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<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-feature
    android:glEsVersion="0x00020000"
    android:required="true" >
</uses-feature>

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.mike.maps.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>
    <activity android:name="com.mike.maps.SecondActivity" >
    </activity>

    <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="Your API KEY goes here" >
    </meta-data>
</application>

希望这对你有帮助..:)

Answer 2

尝试改变

 android:name="com.google.android.gms.maps.MapFragment"/>

到

  android:name="com.google.android.gms.maps.SupportMapFragment"/>

原因是您正在扩展 FragmentActivity 而不是 Fragment 并且必须使用 SupportMapFragment。