小编pan*_*ang的帖子

当我尝试使用android'am'命令启动一个活动时,它在4.2平台下是错误的(我试过,在2.3版本下它没问题).代码是这样的

out = process.getOutputStream();
out.write(("am start -a android.intent.action.VIEW -n com.android.browser/com.android.browser.BrowserActivity\n").getBytes());
out.flush();

InputStream in = process.getInputStream();
BufferedReader re = new BufferedReader(new InputStreamReader(in));
String line = null;
while((line = re.readLine()) != null) {
    Log.d("conio","[result]"+line);
}

而错误是这样的:

java.lang.SecurityException: Permission Denial: startActivity asks to run as user -2 but is calling from user 0; this requires android.permission.INTERACT_ACROSS_USERS_FULL 
at android.os.Parcel.readException(Parcel.java:1425)                                                                                                                        
at android.os.Parcel.readException(Parcel.java:1379)                                                                                                                        
at android.app.ActivityManagerProxy.startActivityAsUser(ActivityManagerNative.java:1921)                                                                                    
at com.android.commands.am.Am.runStart(Am.java:494)                                                                                                                         
at com.android.commands.am.Am.run(Am.java:109)                                                                                                                              
at com.android.commands.am.Am.main(Am.java:82)                                                                                                                              
at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)                                                                                                      
at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:235)                                                                                                           
at dalvik.system.NativeStart.main(Native Method)                                                                                                                            

我想知道

1.用户-2和0是什么意思？

2.我可以在哪里找到有关这些ID的详细信息？

3.我该怎么办,只需添加权限？我不想添加我对他们一无所知的权限.任何人都可以帮助我,非常感谢!