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怎么在Android P中实现静默安装?针对这个问题,这篇文章详细介绍了相对应的分析和解答,希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
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Android9.0无法通过以下两种方式实现静默安装:
1.runtime执行shell cmd
2.PackageInstall 反射机制
但是Google已经给我们推荐了相关的APIDemos,所以建议大家多看看源码~
在frameworks/base/core/java/android/content/pm/PackageInstaller.java有段关于该类的介绍:
The ApiDemos project contains examples of using this API:
ApiDemos/src/com/example/android/apis/content/InstallApk*.java
.
/** * Offers the ability to install, upgrade, and remove applications on the * device. This includes support for apps packaged either as a single * "monolithic" APK, or apps packaged as multiple "split" APKs. ** An app is delivered for installation through a * {@link PackageInstaller.Session}, which any app can create. Once the session * is created, the installer can stream one or more APKs into place until it * decides to either commit or destroy the session. Committing may require user * intervention to complete the installation. *
* Sessions can install brand new apps, upgrade existing apps, or add new splits * into an existing app. *
* Apps packaged as multiple split APKs always consist of a single "base" APK * (with a {@code null} split name) and zero or more "split" APKs (with unique * split names). Any subset of these APKs can be installed together, as long as * the following constraints are met: *
* ###########此处告诉开发者如何调用API安装apk##############
* The ApiDemos project contains examples of using this API:
* ApiDemos/src/com/example/android/apis/content/InstallApk*.java
.
*/
public class PackageInstaller
翻阅源码,InstallApk*.java相关的一共两个demo
InstallApkSessionApi.java //静默安装
InstallApk.java //普通安装,调用系统install intent进行安装
下面是InstallApkSessionApi.java的具体demo
package com.example.android.apis.content; // Need the following import to get access to the app resources, since this // class is in a sub-package. import com.example.android.apis.R; import android.app.Activity; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.content.IntentSender; import android.content.pm.PackageInstaller; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; /** * Demonstration of package installation and uninstallation using the package installer Session * API. * * @see InstallApk for a demo of the original (non-Session) API. */ public class InstallApkSessionApi extends Activity { private static final String PACKAGE_INSTALLED_ACTION = "com.example.android.apis.content.SESSION_API_PACKAGE_INSTALLED"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.install_apk_session_api); // Watch for button clicks. Button button = (Button) findViewById(R.id.install); button.setOnClickListener(new OnClickListener() { public void onClick(View v) { PackageInstaller.Session session = null; try { PackageInstaller packageInstaller = getPackageManager().getPackageInstaller(); PackageInstaller.SessionParams params = new PackageInstaller.SessionParams( PackageInstaller.SessionParams.MODE_FULL_INSTALL); int sessionId = packageInstaller.createSession(params); session = packageInstaller.openSession(sessionId); addApkToInstallSession("HelloActivity.apk", session); // Create an install status receiver. Context context = InstallApkSessionApi.this; Intent intent = new Intent(context, InstallApkSessionApi.class); intent.setAction(PACKAGE_INSTALLED_ACTION); //此处也可以使用getBoradcast或者getService回调通知 PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0); IntentSender statusReceiver = pendingIntent.getIntentSender(); // Commit the session (this will start the installation workflow). session.commit(statusReceiver); } catch (IOException e) { throw new RuntimeException("Couldn't install package", e); } catch (RuntimeException e) { if (session != null) { session.abandon(); } throw e; } } }); } private void addApkToInstallSession(String assetName, PackageInstaller.Session session) throws IOException { // It's recommended to pass the file size to openWrite(). Otherwise installation may fail // if the disk is almost full. try (OutputStream packageInSession = session.openWrite("package", 0, -1); InputStream is = getAssets().open(assetName)) { byte[] buffer = new byte[16384]; int n; while ((n = is.read(buffer)) >= 0) { packageInSession.write(buffer, 0, n); } } } // Note: this Activity must run in singleTop launchMode for it to be able to receive the intent // in onNewIntent(). @Override protected void onNewIntent(Intent intent) { Bundle extras = intent.getExtras(); if (PACKAGE_INSTALLED_ACTION.equals(intent.getAction())) { int status = extras.getInt(PackageInstaller.EXTRA_STATUS); String message = extras.getString(PackageInstaller.EXTRA_STATUS_MESSAGE); switch (status) { case PackageInstaller.STATUS_PENDING_USER_ACTION: // This test app isn't privileged, so the user has to confirm the install. Intent confirmIntent = (Intent) extras.get(Intent.EXTRA_INTENT); startActivity(confirmIntent); break; case PackageInstaller.STATUS_SUCCESS: Toast.makeText(this, "Install succeeded!", Toast.LENGTH_SHORT).show(); break; case PackageInstaller.STATUS_FAILURE: case PackageInstaller.STATUS_FAILURE_ABORTED: case PackageInstaller.STATUS_FAILURE_BLOCKED: case PackageInstaller.STATUS_FAILURE_CONFLICT: case PackageInstaller.STATUS_FAILURE_INCOMPATIBLE: case PackageInstaller.STATUS_FAILURE_INVALID: case PackageInstaller.STATUS_FAILURE_STORAGE: Toast.makeText(this, "Install failed! " + status + ", " + message, Toast.LENGTH_SHORT).show(); break; default: Toast.makeText(this, "Unrecognized status received from installer: " + status, Toast.LENGTH_SHORT).show(); } } } }
另外,权限要求:
需要系统签名
permission
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