Apk安裝

Android11之前可通過 Intent.ACTION_INSTALL_PACKAGE 進(jìn)行傳遞Apk的URI進(jìn)行安裝
但是在Android11版本 Intent.ACTION_INSTALL_PACKAGE 已標(biāo)注棄用
同時(shí)推薦在Android5版本提供的PackageInstaller類進(jìn)行安裝

兼容到Android5.0

PackageInstaller

先看看該類的使用流程

Android Apk 安裝.jpg

額外提示

通過該方式，不需要主動(dòng)去申請(qǐng)App內(nèi)安裝Apk權(quán)限，PackageInstaller內(nèi)置了該申請(qǐng)

代碼實(shí)現(xiàn)

注意 該類啟動(dòng)模式為 棧頂單例
同時(shí)需配備一個(gè) intent-filter

<activity android:name=".InstallActivity" android:launchMode="singleTop">
    <intent-filter>
        <action android:name="cc.xiaobaicz.work.INSTALL_APK" android:exported="true"/>
    </intent-filter>
</activity>

//注意 該類啟動(dòng)模式為 棧頂單例
class InstallActivity : AppCompatActivity() {
    
    //intent-filter 的 action
    private val ACTION_INSTALL = "cc.xiaobaicz.work.INSTALL_APK"

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        install()
    }

    /**
     * 安裝
     */
    private fun install() {
        packageManager.packageInstaller.apply {
            //生成參數(shù)
            val params = PackageInstaller.SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL)
            //創(chuàng)建ID
            val id = createSession(params)
            //打開Session
            val session = openSession(id)
            //寫入文件
            writeAssetsApk2Session(session, "pbox.apk")
            //新建IntentSender
            val intent = createIntentSender()
            //提交漾狼，進(jìn)行安裝
            session.commit(intent)
        }
    }

    /**
     * 新建一個(gè)IntentSender用于接收結(jié)果
     * 該例子通過當(dāng)前頁面接收
     */
    private fun createIntentSender(): IntentSender {
        val intent = Intent(this, MainActivity::class.java).apply {
            action = ACTION_INSTALL
        }
        val pending = PendingIntent.getActivity(this, 0, intent, 0)
        return pending.intentSender
    }

    //寫入Apk到Session輸出流，該例子 獲取Assets內(nèi)文件泣栈，可通過其他方式獲取Apk流
    private fun writeAssetsApk2Session(session: PackageInstaller.Session, s: String) {
        assets.open(s).use { input ->
            session.openWrite("apk", 0, -1).use { output ->
                output.write(input.readBytes())
            }
        }
    }

    /**
     * 接收安裝結(jié)果
     */
    override fun onNewIntent(intent: Intent?) {
        super.onNewIntent(intent)
        intent ?: return
        if (intent.action != ACTION_INSTALL) {
            return
        }
        intent.extras?.apply {
            when (this.getInt(PackageInstaller.EXTRA_STATUS)) {
                PackageInstaller.STATUS_PENDING_USER_ACTION -> {
                    //提示用戶進(jìn)行安裝
                    startActivity(this.get(Intent.EXTRA_INTENT) as Intent)
                }
                PackageInstaller.STATUS_SUCCESS -> {
                    //安裝成功
                }
                else -> {
                    //失敗信息
                    val msg = this.getString(PackageInstaller.EXTRA_STATUS_MESSAGE)
                }
            }
        }
    }

}