Issues with Google Maps on Android Tutorial

问题

Hey guys I've been trying to follow the tutorial that Google has on it's developers site on using Google Maps in Android. Needless to say I couldn't get the thing working and it had multiple errors. So I switched over to one from Youtube and that's giving me errors too. All I want to do is make the map come up. The errors that I couldn't work with is posted below. I really hope you guys can give me a clue as to what to do. Any help is much appreciated.

Also people note that every time I faced an issue I googled it and tried multiple 'fixes'. So any inconsistency in the code is brought about by that.

Errors:

Gradle: Execution failed for task ':GoogleMapsDemoV2:compileDebug'.

Compilation failed; see the compiler error output for details.

C:\Users\Josebz\AndroidStudioProjects\GoogleMapsDemoV2Project\GoogleMapsDemoV2\src\main\java\com\example\googlemapsdemov2\MainActivity.java

Anyway here's all my code...

Main Activity

package com.example.googlemapsdemov2;

import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;

public class MainActivity extends ActionBarActivity {

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

        if (savedInstanceState == null) {
            getSupportFragmentManager().beginTransaction()
                    .add(R.id.container, new PlaceholderFragment())
                    .commit();
        }
    }


    @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;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        switch (item.getItemId()) {
            case R.id.action_settings:
                return true;
        }
        return super.onOptionsItemSelected(item);
    }

    /**
     * A placeholder fragment containing a simple view.
     */
    public static class PlaceholderFragment extends Fragment {

        public PlaceholderFragment() {
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_main, container, false);
            return rootView;
        }
    }

}

Android Manifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.googlemapsdemov2"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="19" />

    <permission
        android:name="com.example.googlemapsdemov2.permission.MAPS_RECEIVE"
        android:protectionLevel="signature"/>
    <uses-permission android:name="com.example.googlemapsdemov2.permission.MAPS_RECEIVE"/>

    <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="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
    <!-- The following two permissions are not required to use
         Google Maps Android API v2, but are recommended. -->
    <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="AIzaSyAL5Xq8scMIHnWXITSOLN9QipVkri4A-lI"/>

        <activity
            android:name="com.example.googlemapsdemov2.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>

activity_main.xml

<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>

build.gradle

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.6.+'
    }
}
apply plugin: 'android'

repositories {
    mavenCentral()
}

android {
    compileSdkVersion 19
    buildToolsVersion "19.0.0"

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 19
    }
}

dependencies {
    compile 'com.android.support:appcompat-v7:+'
    compile 'com.android.support:support-v13:13.0.+'
    compile 'com.google.android.gms:play-services:3.2.25'
}

回答1:

Add following two lines before the MAP_KEY lines in AndroidManifest.xml

    <meta-data
        android:name="com.google.android.gms.version"
        android:value="@integer/google_play_services_version" />

回答2:

1- First thing you must have insured that GOOGLE PLAY SERVICES are installed in your SDK or not.

for this open Eclipse ⇒ Winhows ⇒ Androi SDK Manager and check whether you already have downloaded?

2- Import it into your Eclipse

for this in Eclipse goto File ⇒ Import ⇒ Android ⇒ Existing Android Code Into Workspace

and locate play services library project from

android-sdk-windows\extras\google\google_play_services\libproject\google-play-services_lib

3- very important and main point for google map obtain a Google Map key

for that goto you Eclipse window tab > preferences > Android > Build and then copy your SHA-1 fingerprint.

then follow this link and then goto Services tab then search Google Map API v2 and turn that ON and same as for Goofle Play Android Dev API then nevigate to API ACCESS tab and then Create new Android key..

Thanks

回答3:

Firstly try using undermentioned under application section of manifest file ..

<meta-data
 android:name="com.google.android.gms.version"
 android:value="@integer/google_play_services_version" />

For Ex: Your manifest file ..

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.googlemapsdemov2"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="19" />

    <permission
        android:name="com.example.googlemapsdemov2.permission.MAPS_RECEIVE"
        android:protectionLevel="signature"/>
    <uses-permission android:name="com.example.googlemapsdemov2.permission.MAPS_RECEIVE"/>

    <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="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
    <!-- The following two permissions are not required to use
         Google Maps Android API v2, but are recommended. -->
    <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.gms.version"
        android:value="@integer/google_play_services_version" />
       <!--Your Google API Key -->
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyAL5Xq8scMIHnWXITSOLN9QipVkri4A-lI"/>

        <activity
            android:name="com.example.googlemapsdemov2.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>

Secondly if you are testing same on lower versions of android then you need to use SupportMapFragment for same. Try like this ..

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

Hope it sorts your problem and let me know if any concern ..

来源：https://stackoverflow.com/questions/21225881/issues-with-google-maps-on-android-tutorial