android.content.pm.PackageInstaller#openSession()源码实例Demo

private void actionInstallPackageQ(Uri uri) throws IOException {
    PackageInstaller pi = getPackageManager().getPackageInstaller();
    PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
            PackageInstaller.SessionParams.MODE_FULL_INSTALL);
    int sessionId = pi.createSession(params);

    // Show the progress dialog first
    pi.registerSessionCallback(new InstallationProgressListener(this, pi, sessionId));

    PackageInstaller.Session session = pi.openSession(sessionId);
    doInstallPackageQ(uri, session, () -> {
        // We have finished piping the streams, show the progress as 10%
        session.setStagingProgress(0.1f);

        // Commit the session
        Intent intent = new Intent(this, DummyActivity.class);
        intent.setAction(PACKAGEINSTALLER_CALLBACK);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,
                intent, PendingIntent.FLAG_UPDATE_CURRENT);
        session.commit(pendingIntent.getIntentSender());
    });
}
 

@Override
protected void install(App app) {
    registerReceiver();
    PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller();
    PackageInstaller.SessionParams sessionParams = new PackageInstaller.SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL);
    sessionParams.setAppPackageName(app.getPackageName());
    sessionParams.setAppLabel(app.getDisplayName());
    PackageInstaller.Session session = null;
    try {
        int sessionId = packageInstaller.createSession(sessionParams);
        session = packageInstaller.openSession(sessionId);
        for (File file: Paths.getApkAndSplits(context, app.getPackageName(), app.getVersionCode())) {
            writeFileToSession(file, session);
        }
        session.commit(getIntentSender(sessionId));
    } catch (IOException e) {
        fail(e, app.getPackageName());
    } finally {
        com.github.yeriomin.yalpstore.Util.closeSilently(session);
    }
}
 

private static boolean installPackage(Context context, InputStream in, String packageName)
        throws IOException {
    final PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller();
    final PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
            PackageInstaller.SessionParams.MODE_FULL_INSTALL);
    params.setAppPackageName(packageName);

    final int sessionId = packageInstaller.createSession(params);
    final PackageInstaller.Session session = packageInstaller.openSession(sessionId);
    final OutputStream out = session.openWrite("COSU", 0, -1);
    final byte[] buffer = new byte[65536];
    int bytes_read;
    while ((bytes_read = in.read(buffer)) != -1) {
        out.write(buffer, 0, bytes_read);
    }
    session.fsync(out);
    in.close();
    out.close();

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

private static boolean installPackage(Context context, byte[] buffer, String packageName)
        throws IOException {
    final PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller();
    final PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
            PackageInstaller.SessionParams.MODE_FULL_INSTALL);
    params.setAppPackageName(packageName);

    final int sessionId = packageInstaller.createSession(params);
    final PackageInstaller.Session session = packageInstaller.openSession(sessionId);
    final OutputStream out = session.openWrite("COSU", 0, -1);
    out.write(buffer, 0, buffer.length);

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

private static boolean installPackage(Context context, InputStream in, String packageName)
        throws IOException {
    final PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller();
    final PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
            PackageInstaller.SessionParams.MODE_FULL_INSTALL);
    params.setAppPackageName(packageName);

    final int sessionId = packageInstaller.createSession(params);
    final PackageInstaller.Session session = packageInstaller.openSession(sessionId);
    final OutputStream out = session.openWrite("COSU", 0, -1);
    final byte[] buffer = new byte[65536];
    int bytes_read;
    while ((bytes_read = in.read(buffer)) != -1) {
        out.write(buffer, 0, bytes_read);
    }
    session.fsync(out);
    in.close();
    out.close();

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

private static boolean installPackage(Context context, byte[] buffer, String packageName)
        throws IOException {
    final PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller();
    final PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
            PackageInstaller.SessionParams.MODE_FULL_INSTALL);
    params.setAppPackageName(packageName);

    final int sessionId = packageInstaller.createSession(params);
    final PackageInstaller.Session session = packageInstaller.openSession(sessionId);
    final OutputStream out = session.openWrite("COSU", 0, -1);
    out.write(buffer, 0, buffer.length);

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

public static boolean installPackage(Context context, InputStream in, String packageName)
        throws IOException {
    final PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller();
    final PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
            PackageInstaller.SessionParams.MODE_FULL_INSTALL);
    params.setAppPackageName(packageName);
    // set params
    final int sessionId = packageInstaller.createSession(params);
    final PackageInstaller.Session session = packageInstaller.openSession(sessionId);
    final OutputStream out = session.openWrite("TestDPC", 0, -1);
    final 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(createInstallIntentSender(context, sessionId));
    return true;
}
 

@TargetApi(21)
private PackageInstaller.Session initSession() throws IOException {
    PackageInstaller.Session session = null;
    PackageInstaller packageInstaller = getPackageManager().getPackageInstaller();
    PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
            PackageInstaller.SessionParams.MODE_FULL_INSTALL);
    int sessionId = 0;
    sessionId = packageInstaller.createSession(params);
    session = packageInstaller.openSession(sessionId);

    return session;
}