据我所知,你只能使用root权限运行命令行命令。你可以使用这个通用类,我做了包装在代码中的root访问权限: http://muzikant-android.blogspot.com/2011/02/how-to-get-root-access-and-execute.html
所有你需要做的是扩展这个类并覆盖getCommandsToExecute
方法返回要执行以root的命令。
public abstract class ExecuteAsRootBase
{
public static boolean canRunRootCommands()
{
boolean retval = false;
Process suProcess;
try
{
suProcess = Runtime.getRuntime().exec("su");
DataOutputStream os = new DataOutputStream(suProcess.getOutputStream());
DataInputStream osRes = new DataInputStream(suProcess.getInputStream());
if (null != os && null != osRes)
{
// Getting the id of the current user to check if this is root
os.writeBytes("id\n");
os.flush();
String currUid = osRes.readLine();
boolean exitSu = false;
if (null == currUid)
{
retval = false;
exitSu = false;
Log.d("ROOT", "Can't get root access or denied by user");
}
else if (true == currUid.contains("uid=0"))
{
retval = true;
exitSu = true;
Log.d("ROOT", "Root access granted");
}
else
{
retval = false;
exitSu = true;
Log.d("ROOT", "Root access rejected: " + currUid);
}
if (exitSu)
{
os.writeBytes("exit\n");
os.flush();
}
}
}
catch (Exception e)
{
// Can't get root !
// Probably broken pipe exception on trying to write to output stream (os) after su failed, meaning that the device is not rooted
retval = false;
Log.d("ROOT", "Root access rejected [" + e.getClass().getName() + "] : " + e.getMessage());
}
return retval;
}
public final boolean execute()
{
boolean retval = false;
try
{
ArrayList<String> commands = getCommandsToExecute();
if (null != commands && commands.size() > 0)
{
Process suProcess = Runtime.getRuntime().exec("su");
DataOutputStream os = new DataOutputStream(suProcess.getOutputStream());
// Execute commands that require root access
for (String currCommand : commands)
{
os.writeBytes(currCommand + "\n");
os.flush();
}
os.writeBytes("exit\n");
os.flush();
try
{
int suProcessRetval = suProcess.waitFor();
if (255 != suProcessRetval)
{
// Root access granted
retval = true;
}
else
{
// Root access denied
retval = false;
}
}
catch (Exception ex)
{
Log.e("ROOT", "Error executing root action", ex);
}
}
}
catch (IOException ex)
{
Log.w("ROOT", "Can't get root access", ex);
}
catch (SecurityException ex)
{
Log.w("ROOT", "Can't get root access", ex);
}
catch (Exception ex)
{
Log.w("ROOT", "Error executing internal operation", ex);
}
return retval;
}
protected abstract ArrayList<String> getCommandsToExecute();
}
没有任何提升现有进程特权的方法,只意味着启动以root身份运行的新进程。有关su传递要执行的命令的示例,请参阅http://stackoverflow.com/questions/4846241/more-than-one-superuser-command-android/4846312 – 2011-02-05 08:12:18
@Chris关于启动新的活动/任务/ Android的Java应用程序/等? – 2011-02-05 08:35:46