android游戏大地图如何加载失败 求助：android studio第一次加载百度地图api失败

该楼层疑似违规已被系统折叠隐藏此楼查看此楼

activity.xml

xmlns:tools="/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:paddingBottom="@dimen/activity_vertical_margin"

android:paddingLeft="@dimen/activity_horizontal_margin"

android:paddingRight="@dimen/activity_horizontal_margin"

android:paddingTop="@dimen/activity_vertical_margin"

tools:context=".MyActivity">

android:id="@+id/bmapView"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:clickable="true" />

androidmainifest.xml

package="com.nick.myapplication">

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme">

android:name="com.baidu.lbsapi.API_KEY"

android:value="我的key" />

android:name=".MyActivity"

android:label="@string/app_name">