<application android:label="@string/app_name1"

<activity android:name=".MainActivity" android:label="@string/app_name1">

都需要修改

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools
 
="http://schemas.android.com/tools"

    package="com.example.yanlei.selectmap">

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <!-- 在SDCard中創建與刪除文件權限 -->
    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
    <!--
 
 連接<a href="http://www.it165.net/news/nhlw/" target="_blank" class="keylink">互聯網</a>Internet權限 -->
    <uses-permission android:name="android.permission.INTERNET" />
    <!-- GPS定位權限 -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <
 
uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name1"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme"
        tools:replace="android:icon,android:theme,android:label">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name1">
            <!--#設置手機桌面上圖標下面的名稱-->
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

android應用名稱設置的問題