谷歌地图Android的V2 - 空白屏幕 [英] Google Maps Android V2 - Blank Screen

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问题描述

我实现谷歌地图Android版。我创建了一个测试应用程序,并插入到该应用程序的所有的权限等,并应用完美地工作。

I am implementing google maps for android. I created a test application and inserted all the permissions etc in that application and the application worked flawlessly.

但是,当我试图复制相同的code到我的实际应用它显示我对Android activity.Although我在谷歌API控制台

But when I try and copy the same code to my real application it shows me blank screen on the android activity.Although I've updated the package name in the google api console.

下面是我的测试项目清单如下:

Here's what my Test Project Manifest Looks Like :

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

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="17" />

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

<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" >
<uses-library android:name="com.google.android.maps" />
    <meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="my api key"/>

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

和这里就是我真正的项目清单如下:

and here's what my real project manifest looks like :

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.shop.shoppinglist"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" />

<permission      android:name="com.shop.addtask.permission.MAPS_RECEIVE" android:protectionLevel="signature"/>
<permission      android:name="com.shop.shoppinglist.permission.C2D_MESSAGE"    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.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />

<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<uses-permission android:name="com.shop.addtask.permission.MAPS_RECEIVE"/>
<uses-permission android:name="com.shop.shoppinglist.permission.C2D_MESSAGE" />

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

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:allowBackup="true"
    android:theme="@style/AppTheme" >

    <uses-library android:name="com.google.android.maps"/>
    <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="my api key"/>

    <activity
        android:name=".Login_Activity"
        android:label="@string/title_activity_main" 
        android:theme="@style/Theme.Sherlock" 
        android:screenOrientation="portrait" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

我更新包的名称以 com.shop.addtask 在我的控制台指纹,但它仍然让我看到白色screen.What可能会导致这个问题?该 apikey 我用的是在这两个应用程序一样。但是,它适用于测试应用程序不在真正的应用程序

I updated the package name to com.shop.addtask in my console fingerprint but still it shows me the white screen.What could cause the problem ? The apikey I've used is same in both of the applications. But it works on test application not on the real app.

  • 在我创建使用指纹API密钥
  • 在我开机谷歌地图Android的V2控制台
  • 在我使用中提到的控制台相同的API密钥。
  • I've created the api key using the fingerprint
  • I've switched on google maps android v2 in the console
  • I am using the same api key as mentioned in the console.

所以,这些事情是正确的,这个问题不能由其中一人引起的。

So these things are correct and the problem cannot be caused by one of them.

推荐答案

2可能的原因:

1 这部分:

 <uses-library android:name="com.google.android.maps"/>
<meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="my api key"/>

应该结束申请前右标记。

2 最有可能的,你有你的钥匙某种问题。尝试生成一个新的通过删除 debug.keystore 文件夹,然后运行项目。然后通过控制台重新注册。

2. Most likely you have some sort of problem with your key. Try to generate a new by deleting the debug.keystore folder and running a project. then register it again via the console.

您可以使用本指南我写来做到这一点:

you can use this guide I wrote to do just that:

谷歌地图API V2关键

更新:

选中此为第二个:

<permission      android:name="com.shop.addtask.permission.MAPS_RECEIVE" android:protectionLevel="signature"/>

看起来您在此处设置的包是不是你的应用程序的软件包,应该是:

it looks that the package you set here is not the package of your application and should be:

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

这篇关于谷歌地图Android的V2 - 空白屏幕的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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