如何使用＆＃34; PackageInstaller＆＃34;安装/更新/删除APK Android L中的课程？

时间：2014-11-12 10:41:00

标签： android installation android-5.0-lollipop android-install-apk installation-path

Plz检查下面的classe＆amp;给我一个如何使用它们的建议 https://developer.android.com/reference/android/content/pm/PackageInstaller.html https://developer.android.com/reference/android/content/pm/PackageInstaller.Session.html

请举个例子来安装/更新/删除应用。 新应用程序是否可能安装在设备配置文件所有者中？

7 个答案:

答案 0 :(得分：22)

没有Android M onwards的系统权限。

<py4j.java_gateway.JavaPackage object at 0x7f07cc3f77f0>

设备所有者无人值守安装和卸载应用

设备所有者现在可以使用PackageInstaller API以独立于Google Play for Work的方式静默安装和卸载应用程序。

More in this link.

这可以在Android 6.0及更高版本中使用。

  • 将您的应用设为设备所有者。

一旦您的应用获得设备所有者权限，我们就可以无需任何用户干预即可安装，卸载和更新。

if ((mPm.checkUidPermission(android.Manifest.permission.INSTALL_PACKAGES, installerUid)
        == PackageManager.PERMISSION_GRANTED)
        || (installerUid == Process.ROOT_UID)
        || mIsInstallerDeviceOwner) {
    mPermissionsAccepted = true;
} else {
    mPermissionsAccepted = false;
}

卸载：

public static boolean installPackage(Context context, InputStream in, String packageName)
        throws IOException {
    PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller();
    PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
            PackageInstaller.SessionParams.MODE_FULL_INSTALL);
    params.setAppPackageName(packageName);
    // set params
    int sessionId = packageInstaller.createSession(params);
    PackageInstaller.Session session = packageInstaller.openSession(sessionId);
    OutputStream out = session.openWrite("COSU", 0, -1);
    byte[] buffer = new byte[65536];
    int c;
    while ((c = in.read(buffer)) != -1) {
        out.write(buffer, 0, c);
    }
    session.fsync(out);
    in.close();
    out.close();

    session.commit(createIntentSender(context, sessionId));
    return true;
}



private static IntentSender createIntentSender(Context context, int sessionId) {
        PendingIntent pendingIntent = PendingIntent.getBroadcast(
                context,
                sessionId,
                new Intent(ACTION_INSTALL_COMPLETE),
                0);
        return pendingIntent.getIntentSender();
    }

Git repo here

答案 1 :(得分：6)

您无法使用PackageInstaller.Session.commit()在没有特定“权限”的情况下在新创建的用户中静默安装第三方应用程序。
你需要：

  • INSTALL_PACKAGES权限。但是此权限不适用于第三方应用程序。因此，即使使用您的个人资料所有者应用，您也无法获得此特定权限。
  • 以ROOT_UID身份运行该流程。这意味着您必须根设备。

来自the Android source code：

if ((mPm.checkUidPermission(android.Manifest.permission.INSTALL_PACKAGES, installerUid) == PackageManager.PERMISSION_GRANTED) 
   || (installerUid == Process.ROOT_UID)) {
    mPermissionsAccepted = true;
} else {
    mPermissionsAccepted = false;
}

如果您既没有root访问权限也没有INSTALL_PACKAGES权限，则系统会提示用户询问他是否确认了权限。然后在process会话的提交PackageInstaller's期间使用此确认。显然，在这种情况下，这不是透明的，因为用户必须手动确认您的应用程序的安装。

答案 2 :(得分：4)

提供的安装方法@amalBit对我不起作用。这很奇怪，因为它是Google Sample中的实现方式。

这answer帮我找到了解决方案。我不得不改变代码的某些部分。这是我的实施：

public static void installPackage(Context context, InputStream inputStream)
        throws IOException {
    PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller();
    int sessionId = packageInstaller.createSession(new PackageInstaller
            .SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL));
    PackageInstaller.Session session = packageInstaller.openSession(sessionId);

    long sizeBytes = 0;

    OutputStream out = null;
    out = session.openWrite("my_app_session", 0, sizeBytes);

    int total = 0;
    byte[] buffer = new byte[65536];
    int c;
    while ((c = inputStream.read(buffer)) != -1) {
        total += c;
        out.write(buffer, 0, c);
    }
    session.fsync(out);
    inputStream.close();
    out.close();

    // fake intent
    IntentSender statusReceiver = null;
    Intent intent = new Intent(context, SomeActivity.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
            1337111117, intent, PendingIntent.FLAG_UPDATE_CURRENT);

    session.commit(pendingIntent.getIntentSender());
    session.close();
}

可以像这样调用此方法：

        InputStream inputStream = getActivity().getAssets().open("my_awesome_app.apk");
        InstallationHelper.installPackage(getActivity(), inputStream);

答案 3 :(得分：1)

这也适用于我，虽然我的设备所有者限制用户安装应用和未知来源。即使我将此示例作为设备管理员运行，我也获得了java.lang.SecurityException: User restriction prevents installing.

openSession正在检查权限。通过这种简单的修改，可以仅在短方法调用期间重置用户限制。

public static DevicePolicyManager getDpm(Context context) {
    return (DevicePolicyManager)context.getSystemService(Context.DEVICE_POLICY_SERVICE);
}

public static ComponentName getAdmin(Context context) {
    return new ComponentName(context, MyDevicePolicyReceiver.class);
}

public static void addMyRestrictions(Context context) {
   getDpm(context).addUserRestriction(getAdmin(context), UserManager.DISALLOW_INSTALL_APPS);
   getDpm(context).addUserRestriction(getAdmin(context), UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES);
}

public static void clearMyRestrictions(Context context) {    
   getDpm(context).clearUserRestriction(getAdmin(context), UserManager.DISALLOW_INSTALL_APPS);
   getDpm(context).clearUserRestriction(getAdmin(context), UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES);
}

public static void installPackage(Context context, InputStream inputStream)
    throws IOException {
    PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller();
    int sessionId = packageInstaller.createSession(new PackageInstaller
        .SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL));

    //openSession checks for user restrictions
    clearMyRestrictions(context);
    PackageInstaller.Session session = packageInstaller.openSession(sessionId);
    addMyRestrictions(context);

    long sizeBytes = 0;

    OutputStream out = null;
    out = session.openWrite("my_app_session", 0, sizeBytes);

    int total = 0;
    byte[] buffer = new byte[65536];
    int c;
    while ((c = inputStream.read(buffer)) != -1) {
        total += c;
        out.write(buffer, 0, c);
    }
    session.fsync(out);
    inputStream.close();
    out.close();

    // fake intent
    IntentSender statusReceiver = null;
    Intent intent = new Intent(context, SomeActivity.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
        1337111117, intent, PendingIntent.FLAG_UPDATE_CURRENT);

    session.commit(pendingIntent.getIntentSender());
    session.close();
}

请注意异常处理。

答案 4 :(得分：1)

您只需清除限制 

public static DevicePolicyManager getDpm(Context context) {
    return (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);
}

public static ComponentName getAdmin(Context context) {
    return new ComponentName(context, MyDevicePolicyReceiver.class);
}

public static void addMyRestrictions(Context context) {
    getDpm(context).addUserRestriction(getAdmin(context), UserManager.DISALLOW_INSTALL_APPS);
    getDpm(context).addUserRestriction(getAdmin(context), UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES);
}

public static void clearMyRestrictions(Context context) {
    getDpm(context).clearUserRestriction(getAdmin(context), UserManager.DISALLOW_INSTALL_APPS);
    getDpm(context).clearUserRestriction(getAdmin(context), UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES);
}

public static void installPackage(Context context, InputStream inputStream)
        throws IOException {
    PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller();
    int sessionId = packageInstaller.createSession(new PackageInstaller
            .SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL));

    //openSession checks for user restrictions
    clearMyRestrictions(context);
    PackageInstaller.Session session = packageInstaller.openSession(sessionId);

    long sizeBytes = 0;

    OutputStream out = null;
    out = session.openWrite("my_app_session", 0, sizeBytes);

    int total = 0;
    byte[] buffer = new byte[65536];
    int c;
    while ((c = inputStream.read(buffer)) != -1) {
        total += c;
        out.write(buffer, 0, c);
    }
    session.fsync(out);
    inputStream.close();
    out.close();

    // fake intent
    IntentSender statusReceiver = null;
    Intent intent = new Intent(context, SomeActivity.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
            1337111117, intent, PendingIntent.FLAG_UPDATE_CURRENT);

    session.commit(pendingIntent.getIntentSender());
    session.close();
}

答案 5 :(得分：0)

安装：

Intent promptInstall = new Intent(Intent.ACTION_VIEW);
        promptInstall.setDataAndType(Uri.fromFile(new File(Environment
                .getExternalStorageDirectory() + "/download/" + APK_NAME)),
                "application/vnd.android.package-archive");
        promptInstall.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(promptInstall);

卸载：

Intent intent = new Intent(Intent.ACTION_DELETE, Uri.fromParts("package",
getPackageManager().getPackageArchiveInfo(apkUri.getPath(), 0).packageName,null));
startActivity(intent);

答案 6 :(得分：0)

在Android Api-21下面是代码片段，我们可以通过它静默安装apk。

private void runInstallWrite() throws IOException, RemoteException {
        long sizeBytes = -1;

        String opt;
        while ((opt = nextOption()) != null) {
            if (opt.equals("-S")) {
                sizeBytes = Long.parseLong(nextOptionData());
            } else {
                throw new IllegalArgumentException("Unknown option: " + opt);
            }
        }

        final int sessionId = Integer.parseInt(nextArg());
        final String splitName = nextArg();

        String path = nextArg();
        if ("-".equals(path)) {
            path = null;
        } else if (path != null) {
            final File file = new File(path);
            if (file.isFile()) {
                sizeBytes = file.length();
            }
        }

        final SessionInfo info = mInstaller.getSessionInfo(sessionId);

        PackageInstaller.Session session = null;
        InputStream in = null;
        OutputStream out = null;
        try {
            session = new PackageInstaller.Session(mInstaller.openSession(sessionId));

            if (path != null) {
                in = new FileInputStream(path);
            } else {
                in = new SizedInputStream(System.in, sizeBytes);
            }
            out = session.openWrite(splitName, 0, sizeBytes);

            int total = 0;
            byte[] buffer = new byte[65536];
            int c;
            while ((c = in.read(buffer)) != -1) {
                total += c;
                out.write(buffer, 0, c);

                if (info.sizeBytes > 0) {
                    final float fraction = ((float) c / (float) info.sizeBytes);
                    session.addProgress(fraction);
                }
            }
            session.fsync(out);

            System.out.println("Success: streamed " + total + " bytes");
        } finally {
            IoUtils.closeQuietly(out);
            IoUtils.closeQuietly(in);
            IoUtils.closeQuietly(session);
        }
    }

以上代码来自框架here

我可以在LoLiipop中将此代码与device_owner或普通用户一起使用吗？

答案 - 没有 由于apis在android框架中是@hide标签，虽然在API 21中引入了PackageManager.Session，但我们不能使用新的PAckageManager.Session（），因为它在API 21中@hide。

如果您仍想通过framework.jar使用此代码，则需要构建Lolippop源代码并从/..../ framework.jar中提取jar并调用apis以上。

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