How to install any Android app programmatically in Android 10

问题

In Android 9 & 10 I face issued in install app programmatically in Android Studio using filepath apk file. Below show what I tried..

Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.setDataAndType(Uri.parse("content://"+Environment.getExternalStorageDirectory() + "/download/" + "app-release.apk"), "application/vnd.android.package-archive");
startActivity(intent);

I also added required permission in manifest file .

When I run this then it give me There was a problem parsing the package error.

回答1:

First, your Uri is invalid on every version of Android, outside of a few devices where the device manufacturer hacked in something for you.

Second, by default, neither you nor the package installer process have access to external storage on Android 10.

Third, installing apps via ACTION_VIEW or ACTION_INSTALL_PACKAGE is deprecated on Android 10.

The solution for Android 10 and higher — which also works on Android 5.0 and higher — is to use PackageInstaller.

This sample app demonstrates how to use it. The key pieces are in MainMotor:

/*
  Copyright (c) 2019 CommonsWare, LLC

  Licensed under the Apache License, Version 2.0 (the "License"); you may not
  use this file except in compliance with the License. You may obtain   a copy
  of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required
  by applicable law or agreed to in writing, software distributed under the
  License is distributed on an "AS IS" BASIS,   WITHOUT WARRANTIES OR CONDITIONS
  OF ANY KIND, either express or implied. See the License for the specific
  language governing permissions and limitations under the License.

  Covered in detail in the book _Elements of Android Q

  https://commonsware.com/AndroidQ
*/

package com.commonsware.q.appinstaller

import android.app.Application
import android.app.PendingIntent
import android.content.Intent
import android.content.pm.PackageInstaller
import android.net.Uri
import androidx.documentfile.provider.DocumentFile
import androidx.lifecycle.AndroidViewModel
import androidx.lifecycle.viewModelScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext

private const val NAME = "mostly-unused"
private const val PI_INSTALL = 3439

class MainMotor(app: Application) : AndroidViewModel(app) {
  private val installer = app.packageManager.packageInstaller
  private val resolver = app.contentResolver

  fun install(apkUri: Uri) {
    viewModelScope.launch(Dispatchers.Main) {
      installCoroutine(apkUri)
    }
  }

  private suspend fun installCoroutine(apkUri: Uri) =
    withContext(Dispatchers.IO) {
      resolver.openInputStream(apkUri)?.use { apkStream ->
        val length =
          DocumentFile.fromSingleUri(getApplication(), apkUri)?.length() ?: -1
        val params =
          PackageInstaller.SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL)
        val sessionId = installer.createSession(params)
        val session = installer.openSession(sessionId)

        session.openWrite(NAME, 0, length).use { sessionStream ->
          apkStream.copyTo(sessionStream)
          session.fsync(sessionStream)
        }

        val intent = Intent(getApplication(), InstallReceiver::class.java)
        val pi = PendingIntent.getBroadcast(
          getApplication(),
          PI_INSTALL,
          intent,
          PendingIntent.FLAG_UPDATE_CURRENT
        )

        session.commit(pi.intentSender)
        session.close()
      }
    }
}

Here, install() is given a Uri from ACTION_OPEN_DOCUMENT. Inside of a coroutine, I create a PackageInstaller session, open the session, copy the APK contents to a session-supplied stream, then commit and close the session.

来源：https://stackoverflow.com/questions/59105199/how-to-install-any-android-app-programmatically-in-android-10

标签

android

android-intent