import java.io.DataOutputStream;
import java.io.OutputStream;
/**
* Created by Mark Xu on 2017/11/2.
* Site: http://xuchongyang.com
*/
public class RootUtil {
/**
* 为当前应用请求 Root 权限
* @param pkgCodePath pkgCodePath
* @return 请求结果
*/
public static boolean upgradeRootPermission(String pkgCodePath) {
Process process = null;
DataOutputStream os = null;
try {
String cmd="chmod 777 " + pkgCodePath;
process = Runtime.getRuntime().exec("su"); //切换到root帐号
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;
}
/**
* 执行 Shell 命令
* @param cmd 命令
*/
private void execShellCmd(String cmd) {
try {
// 申请获取root权限,这一步很重要,不然会没有作用
Process process = Runtime.getRuntime().exec("su");
// 获取输出流
OutputStream outputStream = process.getOutputStream();
DataOutputStream dataOutputStream = new DataOutputStream(outputStream);
dataOutputStream.writeBytes(cmd);
dataOutputStream.flush();
dataOutputStream.close();
outputStream.close();
} catch (Throwable t) {
t.printStackTrace();
}
}
}