out.write(buffer, 0, read);

}

}

24.判斷是否有root權(quán)限

[java] view plaincopyprint?

public static synchronized boolean getRootAhth()

{

Process process = null;

DataOutputStream os = null;

try

{

process = Runtime.getRuntime().exec(su);

os = new DataOutputStream(process.getOutputStream());

os.writeBytes(exitn);

os.flush();

int exitValue = process.waitFor();

if (exitValue == 0)

{

return true;

} else

{

return false;

}

} catch (Exception e)

{

Log.d(*** DEBUG ***, Unexpected error - Here is what I know:

+ e.getMessage());

return false;

} finally

{

try

{

if (os != null)

{

os.close();

}

process.destroy();

} catch (Exception e)

{

e.printStackTrace();

}

}

}

25.最簡(jiǎn)單的Root 模擬器的方法

啟動(dòng)一個(gè)模擬器，開始-運(yùn)行-輸入cmd，打開dos，依次輸入

adb shell

mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system

cd /system/bin

cat sh > su

chmod 4755 su

su

即可獲得root權(quán)限