CODEWITHSUNDEEP
androidgoogle-mapserror-handling
user2254979
user2254979

Reputation: 45

android + google API v2

i am creating a application with using the google map v2 on a real device but i get a problem and the application force close how to fix this after i read many and many solutions none of them worked with me it is something about the fragment

manifest file

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

    <uses-sdk
        android:minSdkVersion="12"
        android:targetSdkVersion="17" />

    <permission 

        android:name="com.example.permission.MAPS_RECIEVE"
        android:protectionLevel="signature"/>

     <uses-permission android:name="com.example.permission.MAPS_RECIEVE" />
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <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" />

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

        <meta-data 
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyC6Sh22y4wF_tKlrE2MljwZ7Cd9-8V-Nks"/>
        <activity
            android:name="com.example.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>
    </application>

</manifest>

layout file

<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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/header"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

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

</RelativeLayout>

java file

package com.example;

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

public class MainActivity extends Activity {

    @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;
    }

}

log cat file

04-08 02:29:33.500: D/dalvikvm(25400): Late-enabling CheckJNI
04-08 02:29:33.535: D/dalvikvm(25400): Debugger has detached; object registry had 1 entries
04-08 02:29:33.730: D/AndroidRuntime(25400): Shutting down VM
04-08 02:29:33.730: W/dalvikvm(25400): threadid=1: thread exiting with uncaught exception (group=0x40d4b2a0)
04-08 02:29:33.750: E/AndroidRuntime(25400): FATAL EXCEPTION: main
04-08 02:29:33.750: E/AndroidRuntime(25400): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example/com.example.MainActivity}: android.view.InflateException: Binary XML file line #17: Error inflating class fragment
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2100)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2125)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.ActivityThread.access$600(ActivityThread.java:140)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1227)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.os.Handler.dispatchMessage(Handler.java:99)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.os.Looper.loop(Looper.java:137)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.ActivityThread.main(ActivityThread.java:4898)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at java.lang.reflect.Method.invokeNative(Native Method)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at java.lang.reflect.Method.invoke(Method.java:511)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1008)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:775)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at dalvik.system.NativeStart.main(Native Method)
04-08 02:29:33.750: E/AndroidRuntime(25400): Caused by: android.view.InflateException: Binary XML file line #17: Error inflating class fragment
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:308)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.Activity.setContentView(Activity.java:1924)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at com.example.MainActivity.onCreate(MainActivity.java:12)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.Activity.performCreate(Activity.java:5206)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2064)
04-08 02:29:33.750: E/AndroidRuntime(25400):    ... 11 more
04-08 02:29:33.750: E/AndroidRuntime(25400): Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.MapFragment: make sure class name exists, is public, and has an empty constructor that is public
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.Fragment.instantiate(Fragment.java:584)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.Fragment.instantiate(Fragment.java:552)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.Activity.onCreateView(Activity.java:4849)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
04-08 02:29:33.750: E/AndroidRuntime(25400):    ... 21 more
04-08 02:29:33.750: E/AndroidRuntime(25400): Caused by: java.lang.ClassNotFoundException: com.google.android.gms.maps.MapFragment
04-08 02:29:33.750: E/AndroidRuntime(25400):    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
04-08 02:29:33.750: E/AndroidRuntime(25400):    at android.app.Fragment.instantiate(Fragment.java:574)
04-08 02:29:33.750: E/AndroidRuntime(25400):    ... 24 more

Upvotes: 0

Views: 180

Answers (1)

Emil Adz
Emil Adz

Reputation: 41099

Your error here is:

Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.MapFragment: make sure class name exists, is public, and has an empty constructor that is public

which means that basically MapFragment class could not be found. MapFragment is part of the google-play-services library. To use it you need to import the google-play-services into your workspace and then reference it from your project, you can reed how it's done in the first 3 steps of this blog post I wrote:

Google Maps API V2

Upvotes: 1

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