我几乎只是android的初学者。我试图用谷歌地图创建一个非常简单的应用程序,即只显示地图。我按照以下链接:
file:///C:/Android/Android%20Google%20Maps%20V2%20Tutorial.htm
但是当我在我的设备上进行测试时,它说它已停止工作并关闭。
这是我的Manifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.googleapi"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="18" />
<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-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<!-- Required to show current location -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.googleapi.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="AIzaSyA5BsIL-3rppsOxQOuX4gBZT3c0cTHNbWc" />
</application>
</manifest>
Acyivity代码是:(我尝试扩展FragementActivity但也很适合使用它。)
package com.example.googleapi;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import android.os.Bundle;
import android.app.Activity;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.widget.Toast;
public class MainActivity extends FragmentActivity {
// Google Map
private GoogleMap googleMap;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
try {
// Loading map
initilizeMap();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* function to load map. If map is not created it will create it for you
* */
private void initilizeMap() {
if (googleMap == null) {
googleMap = ((MapFragment) getFragmentManager().findFragmentById(
R.id.map)).getMap();
// check if map is created successfully or not
if (googleMap == null) {
Toast.makeText(getApplicationContext(),
"Sorry! unable to create maps", Toast.LENGTH_SHORT)
.show();
}
}
}
@Override
protected void onResume() {
super.onResume();
initilizeMap();
}
}
和XML代码(部分内容):
<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.MapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
我的logcat是:
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
Caused by: android.view.InflateException: Binary XML file line #6: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.app.Activity.setContentView(Activity.java:1929)
at com.example.googleapi.MainActivity.onCreate(MainActivity.java:20)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
Caused by: java.lang.IllegalStateException: The meta-data tag in your app's AndroidManifest.xml
does not have the right value. Expected 4030500 but found 0.
You must have the following declaration within the <application> element:
<meta-data android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
at com.google.android.gms.common.GooglePlayServicesUtil.n(Unknown Source)
at com.google.android.gms.common.GooglePlayServicesUtil.isGooglePlayServicesAvailable(Unknown Source)
at com.google.android.gms.maps.internal.q.v(Unknown Source)
at com.google.android.gms.maps.internal.q.u(Unknown Source)
at com.google.android.gms.maps.MapsInitializer.initialize(Unknown Source)
at com.google.android.gms.maps.MapFragment$b.cE(Unknown Source)
at com.google.android.gms.maps.MapFragment$b.a(Unknown Source)
at com.google.android.gms.dynamic.a.a(Unknown Source)
at com.google.android.gms.dynamic.a.onInflate(Unknown Source)
at com.google.android.gms.maps.MapFragment.onInflate(Unknown Source)
at android.app.Activity.onCreateView(Activity.java:4785)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
... 21 more
我已经搜索了很多关于它的内容并得到了一些直接的问题,但没有答案?
似乎很多人都有同样的问题。任何人都可以帮助解决这个问题。我想开发一个应用程序,但无法继续,因为谷歌mpas api是它的主要部分。
答案 0 :(得分:1)
您在清单
的应用标记中缺少元标记<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
您应该使用SupportMapFragment
代替MapFragment
。
更改
<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.MapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
到
<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
更改
googleMap = ((MapFragment) getFragmentManager().findFragmentById(
R.id.map)).getMap();
要
googleMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(
R.id.map)).getMap();
答案 1 :(得分:0)
无论您使用旧版本的GooglePlayServices做了什么都可以,但是从您的logcat中可以看出您使用的是GooglePlayServices 13或更高版本,因此您需要按照Raghunandan的回答方式在清单中添加元数据标记。 / p>