AIWROK软件Java标准库和Android SDK库
<ne-clipboard data="%7B%22type%22%3A%22fragment%22%2C%22name%22%3A%22%23fragment%22%2C%22children%22%3A%5B%7B%22type%22%3A%22element%22%2C%22id%22%3A%22ua32eb37c%22%2C%22name%22%3A%22p%22%2C%22attrs%22%3A%7B%7D%2C%22children%22%3A%5B%7B%22type%22%3A%22text%22%2C%22id%22%3A%22u2208d9ac%22%2C%22name%22%3A%22%23text%22%2C%22attrs%22%3A%7B%7D%2C%22data%22%3A%22%E7%89%B9%E5%88%AB%E6%98%AF%E9%92%88%E5%AF%B9Android%E5%BC%80%E5%8F%91%E6%97%B6%E5%AF%BC%E5%85%A5%E7%9A%84%E5%90%84%E7%A7%8D%E7%B1%BB%E3%80%82%E8%BF%99%E4%BA%9B%E7%B1%BB%E5%88%86%E5%88%AB%E5%B1%9E%E4%BA%8EJava%E6%A0%87%E5%87%86%E5%BA%93%E5%92%8CAndroid%20SDK%E5%BA%93%EF%BC%8C%E7%94%A8%E4%BA%8E%E5%A4%84%E7%90%86%E4%B8%8D%E5%90%8C%E7%9A%84%E5%8A%9F%E8%83%BD%E9%9C%80%E6%B1%82%E3%80%82%E4%B8%8B%E9%9D%A2%E6%98%AF%E5%AF%B9%E8%BF%99%E4%BA%9B%E4%BB%A3%E7%A0%81%E7%9A%84%E8%AF%A6%E7%BB%86%E8%AF%B4%E6%98%8E%EF%BC%9A%22%7D%5D%7D%5D%2C%22attrs%22%3A%7B%7D%7D" source="https%3A%2F%2Fwww.yuque.com%2Faiwork%2Fnba2pr%2Fpynkg9av3yi1vcx3"></ne-clipboard><div class="lake-content" typography="classic"><p id="ua32eb37c" class="ne-p" style="min-height: 24px;"><span class="ne-text">特别是针对Android开发时导入的各种类。这些类分别属于Java标准库和Android SDK库，用于处理不同的功能需求。下面是对这些代码的详细说明：</span></p><div class="blockcode"><blockquote>//java类<br>//importClass(java.math.Session);<br>//importClass(java.math.Transport);<br>//importClass(java.math.BigInteger);<br>//importClass(java.math.internet.MimeMessage);<br>importClass(java.sql.Connection);<br>importClass(java.sql.DriverManager);<br>importClass(java.sql.ResultSet);<br>importClass(java.sql.Statement);<br>//importClass(java.util.Date);<br>importClass(java.util.Arrays);<br>importClass(java.util.HashMap);<br>importClass(java.util.Scanner);<br>importClass(java.util.ArrayList);<br>importClass(java.util.Properties);<br>//importClass(java.lang.String);<br>importClass(java.lang.Integer);<br>importClass(java.lang.System);<br>//importClass(java.lang.reflect.Array);<br>importClass(java.io.File);<br>importClass(java.io.FileWriter);<br>importClass(java.io.InputStream);<br>importClass(java.io.BufferedReader);<br>importClass(java.io.BufferedWriter);<br>importClass(java.io.FileOutputStream);<br>importClass(java.io.InputStreamReader); // 明确导入缺失类<br>importClass(java.io.OutputStreamWriter);<br>importClass(java.io.BufferedInputStream);<br>importClass(java.io.BufferedOutputStream);<br>importClass(java.io.ByteArrayInputStream);<br>importClass(java.io.ByteArrayOutputStream);<br>importClass(javax.crypto.Mac);<br>importClass(javax.crypto.Cipher);<br>importClass(javax.crypto.KeyGenerator);<br>importClass(javax.crypto.spec.SecretKeySpec);<br>importClass(javax.crypto.spec.IvParameterSpec);<br>//importClass(java.nio.file.SimpleFileVisitor);<br>importClass(java.net.URL);<br>importClass(java.net.URLConnection);<br>importClass(java.net.InetAddress);<br>importClass(java.net.NetworkInterface);<br>importClass(java.net.InetSocketAddress);<br>importClass(java.nio.charset.Charset);<br>importClass(java.nio.ByteBuffer);<br>importClass(java.security.KeyPair);<br>importClass(java.security.PublicKey);<br>importClass(java.security.PrivateKey);<br>importClass(java.security.SecureRandom);<br>importClass(java.security.MessageDigest);<br>importClass(java.security.KeyPairGenerator);<br>importClass(java.security.NoSuchAlgorithmException);<br><br>//---------------------------------------android[安卓]类<br>importClass(android.widget.Toast);<br>importClass(android.widget.TextView);<br>importClass(android.widget.LinearLayout);<br>importClass(android.view.View);<br>importClass(android.view.Gravity);<br>importClass(android.view.ViewGroup);<br>importClass(android.view.WindowManager);<br>importClass(android.graphics.Color);<br>importClass(android.graphics.Bitmap);<br>importClass(android.graphics.Typeface);<br>importClass(android.graphics.BitmapFactory);<br>importClass(android.util.Log);<br>importClass(android.util.Base64);<br>importClass(android.util.TypedValue);<br>importClass(android.util.DisplayMetrics);<br>importClass(android.app.Activity);<br>importClass(android.app.Application);<br>importClass(android.app.Notification);<br>importClass(android.app.ActivityManager);<br>importClass(android.app.KeyguardManager);<br>importClass(android.app.NotificationManager);<br>importClass(android.app.admin.DevicePolicyManager);<br>importClass(android.net.Uri);<br>importClass(android.net.wifi.WifiInfo);<br>importClass(android.net.wifi.WifiManager);<br>importClass(android.net.ConnectivityManager);<br>importClass(android.Manifest);<br>importClass(android.os.Build);<br>importClass(android.os.Bundle);<br>importClass(android.os.Process);<br>importClass(android.os.Environment);<br>importClass(android.content.Intent);<br>importClass(android.os.PowerManager);<br>importClass(android.os.Build.VERSION);<br>importClass(android.content.Intent);<br>importClass(android.content.Context);<br>importClass(android.content.ContentValues);<br>importClass(android.content.ComponentName);<br>importClass(android.content.pm.PackageManager);<br>importClass(android.content.pm.IPackageManager);<br>importClass(android.hardware.Sensor);<br>importClass(android.hardware.SensorEvent);<br>importClass(android.hardware.SensorManager);<br>importClass(android.hardware.SensorEventListener);<br>importClass(android.media.AudioRecord);<br>importClass(android.media.AudioFormat);<br>importClass(android.media.MediaRecorder);<br>importClass(android.database.Cursor);<br>importClass(android.database.sqlite.SQLiteDatabase);<br>importClass(android.database.sqlite.SQLiteOpenHelper);<br>importClass(android.database.sqlite.SQLiteStatement);<br>importClass(android.provider.Settings);<br>importClass(android.service.notification.StatusBarNotification);<br><br></blockquote></div><p id="ua32eb37c" class="ne-p" style="min-height: 24px;"><span class="ne-text"></span></p><div class="lake-content" typography="classic" style="font-family: "Microsoft YaHei", Tahoma, Helvetica, SimSun, sans-serif;"><div class="lake-content" typography="classic"><h3 id="e0258e28" style="margin-top: 16px; margin-bottom: 5px; font-size: 1em; line-height: 28px;"><span class="ne-text">Java类</span></h3><p id="u9d1abab4" class="ne-p" style="font-family: "Lucida Grande", Geneva, Verdana, Arial; font-size: 12px; min-height: 24px;"><span class="ne-text">这些导入的类主要用于处理数据库操作、数据结构操作以及基本的输入输出操作。具体如下：</span></p><ol class="ne-ol" style="padding-left: 23px;"><li id="uf0322779" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">java.sql</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="ud8558391" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Connection</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">DriverManager</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">ResultSet</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Statement</span></code><span class="ne-text">：这些类用于数据库操作，如建立数据库连接、执行SQL语句、处理查询结果等。这对于需要与数据库交互的应用程序来说非常重要，比如存储用户数据、应用配置信息等。</span></li></ul></ul><ol start="2" class="ne-ol" style="padding-left: 23px;"><li id="uf05e0615" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">java.util</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="ub5c2eb76" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Arrays</span></code><span class="ne-text">：用于操作数组，比如排序、搜索等。</span></li><li id="u94631f31" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">HashMap</span></code><span class="ne-text">：用于存储键值对的数据结构，适用于快速查找操作。</span></li><li id="ud5d0f7ca" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Scanner</span></code><span class="ne-text">：用于读取用户输入，可以是控制台输入或者是文件输入。</span></li><li id="u87b86723" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">ArrayList</span></code><span class="ne-text">：可变长度的数组，用于动态添加和删除元素。</span></li><li id="u7d47d18f" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Properties</span></code><span class="ne-text">：用于读取配置文件，比如</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">.properties</span></code><span class="ne-text">文件，其中包含了键值对形式的配置信息。</span></li></ul></ul><ol start="3" class="ne-ol" style="padding-left: 23px;"><li id="u5111fef4" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">java.io</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u3c21382f" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">File</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">FileWriter</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">InputStream</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">BufferedReader</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">BufferedWriter</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">FileOutputStream</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">InputStreamReader</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">OutputStreamWriter</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">BufferedInputStream</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">BufferedOutputStream</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">ByteArrayInputStream</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">ByteArrayOutputStream</span></code><span class="ne-text">：这些类用于处理文件和流的读写操作，比如将数据写入文件或从文件中读取数据，或者在网络中传输数据。</span></li></ul></ul><ol start="4" class="ne-ol" style="padding-left: 23px;"><li id="ubeed7cb2" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">javax.crypto</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u5f76840e" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Mac</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Cipher</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">KeyGenerator</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">SecretKeySpec</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">IvParameterSpec</span></code><span class="ne-text">：这些类用于加密和解密数据，生成密钥，适用于需要保护数据隐私的应用程序，如金融应用、安全传输等。</span></li></ul></ul><ol start="5" class="ne-ol" style="padding-left: 23px;"><li id="udf0b93c8" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">java.net</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u3cb3226b" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">URL</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">URLConnection</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">InetAddress</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">NetworkInterface</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">InetSocketAddress</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Charset</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">ByteBuffer</span></code><span class="ne-text">：这些类用于网络编程，比如建立网络连接、传输数据、处理网络地址等。</span></li></ul></ul><ol start="6" class="ne-ol" style="padding-left: 23px;"><li id="uc896f349" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">java.security</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u1a3736a5" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">KeyPair</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">PublicKey</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">PrivateKey</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">SecureRandom</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">MessageDigest</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">KeyPairGenerator</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">NoSuchAlgorithmException</span></code><span class="ne-text">：这些类用于处理安全相关的操作，比如生成密钥对、消息摘要、随机数生成等。</span></li></ul></ul><h3 id="e8290613" style="margin-top: 16px; margin-bottom: 5px; font-size: 1em; line-height: 28px;"><span class="ne-text">Android类</span></h3><p id="uaf739a53" class="ne-p" style="font-family: "Lucida Grande", Geneva, Verdana, Arial; font-size: 12px; min-height: 24px;"><span class="ne-text">这些导入的类主要用于Android应用的UI设计和系统交互。具体如下：</span></p><ol class="ne-ol" style="padding-left: 23px;"><li id="ub93bf5ff" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.widget</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u2ad39364" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Toast</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">TextView</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">LinearLayout</span></code><span class="ne-text">：这些用于创建各种用户界面元素，如提示框、文本框、线性布局等。</span></li></ul></ul><ol start="2" class="ne-ol" style="padding-left: 23px;"><li id="u065db698" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.view</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u6ea72c58" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">View</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Gravity</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">ViewGroup</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">WindowManager</span></code><span class="ne-text">：这些类用于处理用户界面的视图、布局和窗口管理等，对于创建动态UI、处理用户交互非常重要。</span></li></ul></ul><ol start="3" class="ne-ol" style="padding-left: 23px;"><li id="u3494a89a" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.graphics</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u0cd93e0a" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Color</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Bitmap</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Typeface</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">BitmapFactory</span></code><span class="ne-text">：这些类用于处理图形、图像、字体等，适用于需要处理图像、绘制图形的应用程序。</span></li></ul></ul><ol start="4" class="ne-ol" style="padding-left: 23px;"><li id="udbfb20ef" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.util</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="uc816c566" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Log</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Base64</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">TypedValue</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">DisplayMetrics</span></code><span class="ne-text">：这些类用于日志记录、数据编码解码、单位转换、显示度量获取等。</span></li></ul></ul><ol start="5" class="ne-ol" style="padding-left: 23px;"><li id="u4c036ec0" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.app</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="ua2162358" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Activity</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Application</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Notification</span></code><span class="ne-text">等：这些类用于处理应用程序的生命周期、通知等功能。</span></li></ul></ul><ol start="6" class="ne-ol" style="padding-left: 23px;"><li id="ucb5a0c27" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.net</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="ufa94af1d" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Uri</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">WifiInfo</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">WifiManager</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">ConnectivityManager</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Manifest</span></code><span class="ne-text">等：这些类用于处理网络连接、Wi-Fi信息获取、权限声明等。</span></li></ul></ul><ol start="7" class="ne-ol" style="padding-left: 23px;"><li id="uec7a5333" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.os</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u55b985fd" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Build</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Bundle</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Process</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Environment</span></code><span class="ne-text">等：这些类用于获取系统信息、处理进程、环境变量等。</span></li></ul></ul><ol start="8" class="ne-ol" style="padding-left: 23px;"><li id="ue01d91d3" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.content</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u78a7acbf" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Intent</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Context</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">ContentValues</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">ComponentName</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">PackageManager</span></code><span class="ne-text">等：这些类用于处理应用程序间的通信、内容值、组件名称、权限管理等功能。</span></li></ul></ul><ol start="9" class="ne-ol" style="padding-left: 23px;"><li id="ue9a3b5d5" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.hardware</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u948973cc" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Sensor</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">SensorEvent</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">SensorManager</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">SensorEventListener</span></code><span class="ne-text">：这些类用于处理硬件传感器数据，比如加速度计、陀螺仪等。</span></li></ul></ul><ol start="10" class="ne-ol" style="padding-left: 23px;"><li id="u2ca73645" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.media</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u63d617d8" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">AudioRecord</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">AudioFormat</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">MediaRecorder</span></code><span class="ne-text">：这些类用于处理音频录制、音频格式处理等。</span></li></ul></ul><ol start="11" class="ne-ol" style="padding-left: 23px;"><li id="u38d0942b" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.database</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u37150c66" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Cursor</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">SQLiteDatabase</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">SQLiteOpenHelper</span></code><span class="ne-text">、</span><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">SQLiteStatement</span></code><span class="ne-text">：这些类用于处理数据库查询、数据增删改查等。</span></li></ul></ul><ol start="12" class="ne-ol" style="padding-left: 23px;"><li id="uf6526014" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.provider</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="uc91a1296" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">Settings</span></code><span class="ne-text">：这个类允许应用程序读取和修改系统设置。</span></li></ul></ul><ol start="13" class="ne-ol" style="padding-left: 23px;"><li id="u9a3b6a60" data-lake-index-type="0"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">android.service.notification</span></code><span class="ne-text">包中的类</span><span class="ne-text">：</span></li></ol><ul class="ne-list-wrap" style="margin-left: 14px; padding-left: 23px; list-style: none;"><ul ne-level="1" class="ne-ul" style="margin-left: 14px; padding-left: 23px; list-style-position: initial; list-style-image: initial;"><li id="u98bac194" data-lake-index-type="0" style="list-style-position: initial; list-style-image: initial;"><code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;"><span class="ne-text">StatusBarNotification</span></code><span class="ne-text">：这个类提供了对状态栏通知的访问和控制。</span></li></ul></ul><div></div></div></div></div><p></p>
页:
[1]