入门＆QUOT;如谷歌和QUOT说在Android的工作室无法添加地图;页; Android的工作室提供了错误 [英] Cannot add map in Android Studio as stated in Google "Getting Started" page; Android Studio gives error
问题描述
我试图按照指示，以与谷歌地图API的应用程序。要做到这一点，我下面的说明严格按描述这里 ：我已经有机器人工作室，并参与了几个非常基本的联系人列表中的应用程序，但是为了这个，我得到了API密钥，设置的位置和网络的权限，并设置了OpenGL ES的V2。 我复制了code右下面两节从网站上，贴到活动.xml文件和Java类。
I'm trying to follow the directions to make an app with the Google Maps API. To do this, I'm following the instructions exactly as described here: I already had Android Studio and worked on a couple of very elementary Contact List apps, but for this I got the API key, set up the location and network permissions and set up OpenGL ES v2. I copied the following two sections of code right from the website and pasted it to the activity .xml file and the java class.
<?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"
android:name="com.google.android.gms.maps.MapFragment"/>
到布局XML文件，下面的MainActivity.java文件。
to the layout XML file and the following to the MainActivity.java file.
package com.example.mapdemo;
import android.app.Activity;
import android.os.Bundle;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
我碰上与code中的第一个块的一个问题。 Android的工作室返回 android.gms.maps.MapFragment 为错误，通过突出显示为红色。这也给了我一个错误的研究的所有使用实例... 研究的任何使用以红色突出显示。我试图导入 android.R ，但没有奏效。但我想一个问题的时间。
I run into a problem with the first block of code. Android Studio returns the "android.gms.maps.MapFragment" as an error, by highlighting it red. It also gives me an error for all usages of R... any usage of Ris highlighted in red. I tried importing android.R but didn't work. But I guess one problem at a time.
任何想法？谢谢！
推荐答案
编辑：我刚开始一个新的项目，并随后从该链接的说明。它为我工作。
有一点要注意的是，我没有改变任何东西 MainActivity.java 。
I just started a new project and followed the instructions from that link. It worked for me.
One thing to note is that I didn't have to change anything in MainActivity.java.
我会建议开始在Android的Studio中的一个新的项目，选择空白活动。
修改的AndroidManifest.xml ， build.gradle 和 activity_main.xml ，但一切都留在 MainActivity.java 原样。
I would recommend starting a new project in Android Studio, select "Blank Activity".
Modify AndroidManifest.xml, build.gradle, and activity_main.xml, but leave everything in MainActivity.java as is.
有一点需要注意的是，从SDK管理器中，您需要安装：
One thing to note is that from the SDK Manager, you need to install:
- 在Android的支持库
- 在Android的支持库
- 在谷歌播放服务
- 在谷歌信息库
这是我的工作的例子：
在build.gradle：
In build.gradle:
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.0.0'
compile 'com.google.android.gms:play-services-maps:7.0.0'
}
AndroidManifest.xml中：
AndroidManifest.xml:
<uses-permission android:name="android.permission.INTERNET" />
<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-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".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="*********************"/>
<meta-data android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
</application>
我得到了它设置了一个片段在 MainActivity 。
I got it set up with a Fragment within MainActivity.
activity_main.xml（没有什么特别的位置）：
activity_main.xml (nothing special here):
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:id="@+id/container"
android:layout_width="match_parent" android:layout_height="match_parent"
tools:context=".MainActivity" tools:ignore="MergeRootFrame" />
fragment_main.xml：
fragment_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<com.google.android.gms.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
MainActivity.java：
MainActivity.java:
import android.support.v7.app.ActionBarActivity;
import android.support.v4.app.Fragment;
import android.view.Menu;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.location.Location;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapView;
import com.google.android.gms.maps.MapsInitializer;
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 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.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public static class PlaceholderFragment extends Fragment {
MapView mMapView;
private GoogleMap googleMap;
Location location;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// inflate and return the layout
View v = inflater.inflate(R.layout.fragment_main, container,
false);
mMapView = (MapView) v.findViewById(R.id.mapView);
mMapView.onCreate(savedInstanceState);
mMapView.onResume();// needed to get the map to display immediately
try {
MapsInitializer.initialize(getActivity().getApplicationContext());
} catch (Exception e) {
e.printStackTrace();
}
googleMap = mMapView.getMap();
googleMap.setMyLocationEnabled(true);
location = googleMap.getMyLocation();
if (location != null) {
// latitude and longitude
LatLng lat = new LatLng(location.getLatitude(), location.getLongitude());
//double latitude = 17.385044;
//double longitude = 78.486671;
//LatLng lat = new LatLng(latitude,longitude);
// create marker
MarkerOptions marker = new MarkerOptions().position(
lat).title("Hello Maps");
// Changing marker icon
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_ROSE));
// adding marker
googleMap.addMarker(marker);
CameraPosition cameraPosition = new CameraPosition.Builder()
.target(lat).zoom(12).build();
googleMap.animateCamera(CameraUpdateFactory
.newCameraPosition(cameraPosition));
}
// Perform any camera updates here
return v;
}
@Override
public void onResume() {
super.onResume();
mMapView.onResume();
}
@Override
public void onPause() {
super.onPause();
mMapView.onPause();
}
@Override
public void onDestroy() {
super.onDestroy();
mMapView.onDestroy();
}
@Override
public void onLowMemory() {
super.onLowMemory();
mMapView.onLowMemory();
}
}
}
结果：
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