无法在我的Android应用中查看Google地图

时间:2014-05-28 08:22:16

标签: android google-maps

我正在尝试在Android应用程序中使用Google Map但我在运行应用程序时无法看到Map。我唯一能看到的是带有zoomin的缩略图 - zoomoout符号。我尝试了很多stackoverflow解决方案,但无法通过它。请帮我躲开这个。非常感谢你。

我按照此链接获取Google地图密钥 -

https://developers.google.com/maps/documentation/android/start#installing_the_google_maps_android_v2_api

我的Apps Manifest.xml如下 -

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

   <uses-sdk
    android:minSdkVersion="11"
    android:targetSdkVersion="19" />
   <uses-feature
    android:glEsVersion="0x00020000"
    android:required="true" />

 <uses-permission android:name="android.permission.INTERNET" />
 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />                 
 <application
    android:allowBackup="true"
    android:icon="@drawable/pin_location"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
 <activity
    android:name="com.surajkumar.myapp.MainActivity"
    android:label="@string/app_tag" >
    <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="@string/gmap_apiv2_key" />
  <meta-data
       android:name="com.google.android.gms.version"
       android:value="@integer/google_play_services_version" />
 </application>

 </manifest>

布局文件如下 -

  <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:orientation="vertical"
   android:padding="10dp"
   android:background="@color/honeydew" 
  >
<TextView 
  android:id="@+id/yourlocationtxt"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:text="Refresh to get your location"/>

<LinearLayout 
  android:id="@+id/mapsection"
  android:layout_width="match_parent"
  android:layout_height="0px"
  android:layout_weight="1"
  android:orientation="vertical"
  android:padding="4dp">

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

</LinearLayout>
<Button
  android:id="@+id/sendsms"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:text="@string/sendlocationbtntxt" 
  android:background="@drawable/button_style"/>

</LinearLayout>

活动代码如下 -

 package com.surajkumar.myapp;

 import android.app.Activity;
 import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.View.OnClickListener;

 import com.google.android.gms.maps.GoogleMap;
 import com.google.android.gms.maps.MapFragment;
 import com.google.android.gms.maps.model.LatLng;
 import com.google.android.gms.maps.model.MarkerOptions;


  public class MainActivity extends Activity {

  private GoogleMap peoplesLocMap;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main);
     peoplesLocMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map))
        .getMap();    
 }

 @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) {
    return super.onOptionsItemSelected(item);

 }

}

3 个答案:

答案 0 :(得分:1)

你应该改变这个

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

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

还添加<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 在你的清单

答案 1 :(得分:0)

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

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

并在清单

中添加您自己的权限
<permission
        android:name="yourPackagename.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />

    <uses-permission android:name="yourPackagename.permission.MAPS_RECEIVE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

就是这样

答案 2 :(得分:0)

确保您的清单中包含以下内容:

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

<permission
    android:name="com.surajkumar.myapp.permission.MAPS_RECEIVE"
    android:protectionLevel="signature" />

<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-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<uses-permission android:name="com.surajkumar.myapp.permission.MAPS_RECEIVE" />

这应该在应用程序结束标记之前:

<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="API_KEY"/>

更改此

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

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

并从您的活动中加载地图:

GoogleMap gMap;
在onCreate中

FragmentManager fragmentManager = getFragmentManager();
MapFragment mapFragment = (MapFragment) fragmentManager.findFragmentById(R.id.map);
gMap = mapFragment.getMap();

尝试再次检查你提到的link,看看你是否错过了什么,并确保你正确生成了密钥,因为你所描述的空白视图,但放大/缩小标志显示的是很多时候关键相关问题

祝你好运......