[移动开发]Android 9 静默安装apk

Android 9以上，Android静默安装不能再用反射的方法了。改为使用Session。不多说，直接上代码。

private void runInstallSession(Context context, File apkSource) {
        PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(
                PackageInstaller.SessionParams.MODE_FULL_INSTALL);
        InputStream is = null;
        OutputStream os = null;
        boolean succeed = false;
        try {
            Log.d(TAG, "runInstallSession start");
            PackageManager pm = context.getPackageManager();
            PackageInstaller packageInstaller = pm.getPackageInstaller();

            PackageInfo info = pm.getPackageArchiveInfo(apkSource.getAbsolutePath(),
                    PackageManager.GET_ACTIVITIES);
            Log.d(TAG, "runInstallSession packageName=" + info.packageName);
            params.setAppPackageName(info.packageName);

            int sessionId = packageInstaller.createSession(params);
            byte[] buffer = new byte[65536];
            PackageInstaller.Session session = packageInstaller.openSession(sessionId);
            is = new FileInputStream(apkSource);
            long sizeBytes = apkSource.length();
            Log.d(TAG, "runInstallSession sizeBytes=" + String.valueOf(sizeBytes));
            os = session.openWrite("PackageInstaller", 0, sizeBytes);
            int c = 0;
            while ((c = is.read(buffer)) != -1) {
                os.write(buffer, 0, c);
            }
            session.fsync(os);
            os.close();
            os = null;
            Intent intent = new Intent("com.android.preinstall");
            intent.putExtra("pkgname", info.packageName);
            int index = info.packageName.hashCode();
            PendingIntent pendingIntent = PendingIntent.getBroadcast(context, index, intent,
                    PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT);
            session.commit(pendingIntent.getIntentSender());
            succeed = true;
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (os != null) {
                    os.close();
                }
                if (is != null) {
                    is.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            Log.d(TAG, "runInstallSession " + (succeed?"success":"failed"));
        }
    }