android - "Error inflating class fragment" with google map

Question

I tried to make a sample project using Google Map, but I couldn't. Help me please!

Test Device : Android 4.0.4

Error Message :

12-29 23:45:32.605: E/AndroidRuntime(9437): FATAL EXCEPTION: main
12-29 23:45:32.605: E/AndroidRuntime(9437):
java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.example.test_googlemap/com.example.test_googlemap.MainActivity}:
android.view.InflateException: Binary XML file line #2: Error
inflating class fragment 12-29 23:45:32.605: E/AndroidRuntime(9437):
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1968)
12-29 23:45:32.605: E/AndroidRuntime(9437):     at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1993)
12-29 23:45:32.605: E/AndroidRuntime(9437):     at
android.app.ActivityThread.access$600(ActivityThread.java:127) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1159)
12-29 23:45:32.605: E/AndroidRuntime(9437):     at
android.os.Handler.dispatchMessage(Handler.java:99) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
android.os.Looper.loop(Looper.java:137) 12-29 23:45:32.605:
E/AndroidRuntime(9437):     at
android.app.ActivityThread.main(ActivityThread.java:4507) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
java.lang.reflect.Method.invokeNative(Native Method) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
java.lang.reflect.Method.invoke(Method.java:511) 12-29 23:45:32.605:
E/AndroidRuntime(9437):     at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
12-29 23:45:32.605: E/AndroidRuntime(9437):     at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
dalvik.system.NativeStart.main(Native Method) 12-29 23:45:32.605:
E/AndroidRuntime(9437): Caused by: android.view.InflateException:
Binary XML file line #2: Error inflating class fragment 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697)
12-29 23:45:32.605: E/AndroidRuntime(9437):     at
android.view.LayoutInflater.inflate(LayoutInflater.java:466) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
android.view.LayoutInflater.inflate(LayoutInflater.java:396) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
android.view.LayoutInflater.inflate(LayoutInflater.java:352) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:271)
12-29 23:45:32.605: E/AndroidRuntime(9437):     at
android.app.Activity.setContentView(Activity.java:1835) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
com.example.test_googlemap.MainActivity.onCreate(MainActivity.java:11)
12-29 23:45:32.605: E/AndroidRuntime(9437):     at
android.app.Activity.performCreate(Activity.java:4465) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1052)
12-29 23:45:32.605: E/AndroidRuntime(9437):     at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1932)
12-29 23:45:32.605: E/AndroidRuntime(9437):     ... 11 more 12-29
23:45:32.605: E/AndroidRuntime(9437): Caused by:
java.lang.ClassCastException: com.google.android.gms.maps.MapFragment
cannot be cast to android.support.v4.app.Fragment 12-29 23:45:32.605:
E/AndroidRuntime(9437):     at
android.support.v4.app.Fragment.instantiate(Fragment.java:394) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
android.support.v4.app.Fragment.instantiate(Fragment.java:369) 12-29
23:45:32.605: E/AndroidRuntime(9437):   at
android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:272)
12-29 23:45:32.605: E/AndroidRuntime(9437):     at
android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:669)
12-29 23:45:32.605: E/AndroidRuntime(9437):     ... 20 more

Source Code :

package com.example.test_googlemap;

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

public class MainActivity extends FragmentActivity {

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

}

activity_main.xml :

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

Manifest.xml :

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

    <uses-sdk
        android:minSdkVersion="3"
        android:targetSdkVersion="15" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.test_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="I removed it!"/>
        </application>    
    <permission
        android:name="com.example.Test_GoogleMap.permission.MAPS_RECEIVE"
        android:protectionLevel="signature"/>
    <uses-permission android:name="com.example.Test_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"/>

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

</manifest>

Answer 1

You are extending FragmentActivity, indicating that you are trying to use the Android Support package backport of fragments. However, your <fragment> element refers to MapFragment, which is for the native API Level 11 edition of fragments.

Replace MapFragment with SupportMapFragment, and that should clear up this specific crash.