android 5.0 创建多用户 双开多开应用（1）

Andriod5.0多用户 双开应用

android多用户是5.0之后有的，类似windows的账户系统

不过官方还没有完全确认，API大都是hide状态

我这里提供一种方式并不适用所有的，由于我们有定制化手机，所以有定制化的服务可以开发，所以只需要将源码平台化编译一把，将所需要的类抽取出来，打成jar，再通过AIDL方式暴露出相应的接口，当然这个服务也是系统服务。我们再去开发只需要调用相应AIDL提供相应的接口即可。

下面来详细的说明：

1.首先系统服务

android:sharedUserId="android.uid.system"

签名的时候需要平台对应的签名文件需要signapk.jar签名之后生成apk安装即可

2.将需要的类打成jar（5.0以上版本编译后的class）

在out/target/common/obj/Java_Libraries/framework_intermediates..找到相应的对应的class

源文件

package android.os;

import android.os.Bundle;
import android.content.pm.UserInfo;
import android.content.RestrictionEntry;
import android.graphics.Bitmap;

/**
 *  {@hide}
 */
interface IUserManager {
    UserInfo createUser(in String name, int flags);
    UserInfo createProfileForUser(in String name, int flags, int userHandle);
    void setUserEnabled(int userHandle);
    boolean removeUser(int userHandle);
    void setUserName(int userHandle, String name);
    void setUserIcon(int userHandle, in Bitmap icon);
    Bitmap getUserIcon(int userHandle);
    List<UserInfo> getUsers(boolean excludeDying);
    List<UserInfo> getProfiles(int userHandle, boolean enabledOnly);
    UserInfo getProfileParent(int userHandle);
    UserInfo getUserInfo(int userHandle);
    boolean isRestricted();
    int getUserSerialNumber(int userHandle);
    int getUserHandle(int userSerialNumber);
    Bundle getUserRestrictions(int userHandle);
    boolean hasUserRestriction(in String restrictionKey, int userHandle);
    void setUserRestrictions(in Bundle restrictions, int userHandle);
    void setApplicationRestrictions(in String packageName, in Bundle restrictions,
            int userHandle);
    Bundle getApplicationRestrictions(in String packageName);
    Bundle getApplicationRestrictionsForUser(in String packageName, int userHandle);
    boolean setRestrictionsChallenge(in String newPin);
    int checkRestrictionsChallenge(in String pin);
    boolean hasRestrictionsChallenge();
    void removeRestrictions();
    void setDefaultGuestRestrictions(in Bundle restrictions);
    Bundle getDefaultGuestRestrictions();
    boolean markGuestForDeletion(int userHandle);
}

3.写好相应的方法调用：

 /**
     * 得到 IUserManager
     * @return IUserManager
     */
    private IUserManager getIUserManager(){
        IUserManager iUserManager = null;
        IBinder binder = null;
                try {
                    if(iUserManager==null){
                        Class<?> ServiceManagerClass = Class.forName("android.os.ServiceManager");
                        Method method = ServiceManagerClass.getMethod("getService", String.class);
                        if(binder==null){
                            binder = (IBinder) method.invoke(ServiceManagerClass, Context.USER_SERVICE);
                        }
                        iUserManager = IUserManager.Stub.asInterface(binder);
                        return iUserManager;
                    }
                } catch (Exception e) {
                        e.printStackTrace();
                }
            return null;
    }

public UserInfo createUser(String name, int flags){
                    UserInfo info = null;
                    IUserManager iUserManager = getIUserManager();
                    if(info == null){
                        try {
                            info = iUserManager.createUser(name, flags);
                             loguser(iUserManager);
                            return info;
                        } catch (RemoteException e) {
                            e.printStackTrace();
                        }
                    }
                return null;
    }

   public UserInfo getUserInfo(int userHandle){
        UserInfo info = null;
        IUserManager iUserManager = getIUserManager();
        if(info == null){
            try {
                info = iUserManager.getUserInfo(userHandle);
                 loguser(iUserManager);
                return info;
            } catch (RemoteException e) {
                e.printStackTrace();
            }
        }
        return null;
    }

 public boolean removeUser(int userHandle){
        IUserManager iUserManager = getIUserManager();
        boolean isremove = false;
        try {
            isremove = iUserManager.removeUser(userHandle);
             loguser(iUserManager);
            return isremove;
        } catch (RemoteException e) {
            e.printStackTrace();
        }
        return false;
    }

4写一个AIDL我这里是通过回调方式写的，不熟悉的同学可以回去看看AIDL

   case SERVICE_EXTENDED_API_CREATE_USER_MODE:{
                //TODO
                if(para!=null){
                 String name = para.getString(KEY_USER_NAME);
                 int flags = para.getInt(KEY_USER_FLAG);
                 UserInfo info = muserPolicy.createUser(name, flags);
                 if(info!=null){
                         if (cb != null) {
                            Bundle data = new Bundle(1);
                            data.putParcelable(KEY_USER_INFO, info);
                            try {
                                cb.onResultOfCallExtendedApi(SERVICE_EXTENDED_API_CREATE_USER_MODE, data);
                            } catch (RemoteException e) {
                                e.printStackTrace();
                            }
                        }
                 }
                }
                 return 0;
            }  

  case SERVICE_EXTENDED_API_GET_USER_INFO:{
                if(para!=null){
                    int userHandle = para.getInt(KEY_USER_HANDLER);
                    UserInfo info = muserPolicy.getUserInfo(userHandle);
                    if(info !=null){
                         if (cb != null) {
                             Bundle data = new Bundle(1);
                             data.putParcelable(KEY_USER_INFO, info);
                             try {
                                 cb.onResultOfCallExtendedApi(SERVICE_EXTENDED_API_GET_USER_INFO, data);
                             } catch (RemoteException e) {
                                 e.printStackTrace();
                             }
                         }
                    }
                }
                return 0;
            }  

  case SERVICE_EXTENDED_API_REMOVE_USER:{
                if(para!=null){
                    int userHandle = para.getInt(KEY_USER_HANDLER);
                    boolean isremove = muserPolicy.removeUser(userHandle);
                     if (cb != null) {
                         Bundle data = new Bundle(1);
                         data.putBoolean(KEY_USER_IS_REMOVE, isremove);
                         try {
                             cb.onResultOfCallExtendedApi(SERVICE_EXTENDED_API_REMOVE_USER, data);
                         } catch (RemoteException e) {
                             e.printStackTrace();
                         }
                     }
                }
                return 0;
            }  

5.再在需要的应用上调用服务端相应的接口：

启动的时候需要bind系统服务

    private void init(){
            Intent intent1 = new Intent();
            intent1.setPackage("com.xxx.xxx");
            intent1.setAction("com.xxx.xxxService");
            bindService(intent1, conn1, Context.BIND_AUTO_CREATE);
        }  

    case R.id.btn_create:
                Bundle create = new Bundle();
                create.putString("username", "Zeng");
                try {
                    if(ips!=null){
                        ips.callExtendedApi(22, create, ipsc);
                    }else{
                        Log.e("peng","onclickcreate serviceisnull");
                    }  

                } catch (RemoteException e) {
                    e.printStackTrace();
                }
                break;
            case R.id.btn_get:
                Bundle get = new Bundle();
                get.putInt("userHandle", mhandle);
                try {
                    if(ips!=null){
                        ips.callExtendedApi(23, get, ipsc);
                    }else{
                        Log.e("peng","onclickget serviceisnull");
                    }  

                } catch (RemoteException e) {
                    e.printStackTrace();
                }
                break;
            case R.id.btn_remove:
                int i = Integer.parseInt(et_text.getText().toString().trim());
                Bundle remove = new Bundle();
                remove.putInt("userHandle", i);
                try {
                    if(ips!=null){
                        ips.callExtendedApi(24, remove, ipsc);
                    }else{
                        Log.e("peng","onclickremove serviceisnull");
                    }  

                } catch (RemoteException e) {
                    e.printStackTrace();
                }
                break;

对应的callback可以返回对应的数据。