转：Android 获取Root权限

来自：http://blog.csdn.net/twoicewoo/article/details/7228940

import java.io.DataOutputStream;import android.app.Activity;public class MyTestPri extends Activity{    public void onCreate(Bundle savedInstanceState){        super.onCreate(savedInstanceState);    //* Create a TextView and set its content.        //* the text is retrieved by calling a native        //* function.        setContentView(R.layout.main);        String apkRoot="chmod 777 /dev/block/mmcblk0";//SD卡分区路径，也可能是mmcblk1随系统版本定，当前程序路径请用getPackageCodePath();        RootCmd(apkRoot);    }    public boolean RootCmd(String cmd){        Process process = null;        DataOutputStream os = null;        try{            process = Runtime.getRuntime().exec("su");            os = new DataOutputStream(process.getOutputStream());            os.writeBytes(cmd+ "\n");            os.writeBytes("exit\n");            os.flush();            process.waitFor();        } catch (Exception e) {            return false;        } finally {            try {                if (os != null)   {                    os.close();                }                process.destroy();            } catch (Exception e) {            }        }        return true;    }}
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