We don't need to wait to pin the camera app.

package com.android.server;

import android.content.Context;

import android.content.Intent;

import android.content.pm.ActivityInfo;

import android.content.pm.ApplicationInfo;

import android.content.pm.PackageInfo;

import android.content.pm.PackageManager;

import android.content.pm.ResolveInfo;

import android.content.res.Resources;

import android.content.Intent;

import android.util.EventLog;

import android.util.Slog;

import android.os.Binder;

import android.os.Build;

import android.os.Handler;

import android.os.Looper;

import android.os.Message;

import android.os.Process;

import android.os.UserHandle;

import android.provider.MediaStore;

import android.system.ErrnoException;

import android.system.Os;

import android.system.OsConstants;

import android.system.StructStat;

import android.util.Slog;

import com.android.internal.app.ResolverActivity;

import com.android.internal.os.BackgroundThread;

import dalvik.system.DexFile;

import dalvik.system.VMRuntime;

import java.util.ArrayList;

import java.util.List;

import java.io.FileDescriptor;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.PrintWriter;

import java.util.ArrayList;

/**

 * <p>PinnerService pins important files for key processes in memory.</p>

        }

        mBinderService = new BinderService();

        publishBinderService("pinner", mBinderService);

        mPinnerHandler.sendMessage(

                mPinnerHandler.obtainMessage(PinnerHandler.PIN_ONSTART_MSG));

    }

    /**

     * Pin camera on unlock.

     * We have to wait for unlock because the user's

     * preference for camera is not available from PackageManager until after

     * unlock

     */

    @Override

    public void onUnlockUser(int userHandle) {

        mPinnerHandler.sendMessage(

                mPinnerHandler.obtainMessage(PinnerHandler.PIN_CAMERA_MSG, userHandle, 0));

        mPinnerHandler.obtainMessage(PinnerHandler.PIN_ONSTART_MSG).sendToTarget();

        mPinnerHandler.obtainMessage(PinnerHandler.PIN_CAMERA_MSG, UserHandle.USER_SYSTEM, 0)

                .sendToTarget();

    }

    /**

     */

    @Override

    public void onSwitchUser(int userHandle) {

        mPinnerHandler.sendMessage(

                mPinnerHandler.obtainMessage(PinnerHandler.PIN_CAMERA_MSG, userHandle, 0));

        mPinnerHandler.obtainMessage(PinnerHandler.PIN_CAMERA_MSG, userHandle, 0).sendToTarget();

    }

    /**

        //  device without a fbe enabled, the _SECURE intent will never get set.

        Intent cameraIntent = new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA);

        PackageManager pm = mContext.getPackageManager();

        ResolveInfo cameraResolveInfo = pm.resolveActivityAsUser(

                cameraIntent, PackageManager.MATCH_DEFAULT_ONLY, userHandle);

        ResolveInfo cameraResolveInfo = pm.resolveActivityAsUser(cameraIntent,

                PackageManager.MATCH_DEFAULT_ONLY | PackageManager.MATCH_DIRECT_BOOT_AWARE

                        | PackageManager.MATCH_DIRECT_BOOT_UNAWARE,

                userHandle);

        if (cameraResolveInfo == null ) {

            //this is not necessarily an error

            if (DEBUG) {