我为版本2创建了一个Google API密钥,并在清单中使用了该密钥,但我无法在设备上显示地图。
我已按照Google地图文档中提供的所有内容进行操作。我还用this link。
MainActivity.java。
包com.example.googlenewmap;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class MainActivity extends FragmentActivity {
static final LatLng HAMBURG = new LatLng(53.558, 9.927);
static final LatLng KIEL = new LatLng(53.551, 9.993);
private GoogleMap map;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
map = ((SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map)).getMap();
if (map != null) {
map.addMarker(new MarkerOptions().position(HAMBURG)
.title("Hamburg"));
map.addMarker(new MarkerOptions()
.position(KIEL)
.title("Kiel")
.snippet("Kiel")
.icon(BitmapDescriptorFactory
.fromResource(R.drawable.ic_launcher)));
}
}
}
清单文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.googlenewmap"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="17" />
<permission
android:name="com.example.googlenewmap.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.googlenewmap.permission.MAPS_RECEIVE" />
<!-- Copied from Google Maps Library/AndroidManifest.xml. -->
<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" />
<!-- External storage for caching. -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<!-- My Location -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<!-- Maps API needs OpenGL ES 2.0. -->
<!-- Maps API needs OpenGL ES 2.0. -->
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<!-- End of copy. -->
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<uses-library android:name="com.google.android.maps" />
<!--
** You need to replace the key below with your own key. **
The example key below will not be accepted because it is not linked to the
certificate which you will use to sign this application.
See: https://developers.google.com/maps/documentation/android/start
for instructions on how to get your own key.
-->
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="api key" />
<activity
android:name="com.example.googlenewmap.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>
如何解决此问题?
答案 0 :(得分:1)
您使用的是什么键?
调试密钥和释放密钥有两种类型。在签名apk时,您希望使用发布密钥。为此,你想与签名的apk
进行比较第1步:
比如说你的apk名是A,你正在为A.apk签名并创建一个密钥库,即A.keystore将在某个驱动器位置创建。让我们在E盘中考虑它。
第2步:
现在找到C盘中的jdk(考虑到Windows并分配C盘)
C:\ Program Files \ Java \ jdk1.7.0 \ bin&gt; keytool -list -v -keystore E:\ A.keystore -alias A
因此它将创建SHA-1指纹
调试键是正常的,您可以照常提取。