Question

怎么用代码判断android手机是否开启了ROOT 权限

Answer 1

public class TestRoot {
protected boolean isRoot() {
boolean IsRoot = false;
try {
if (new File("/system/bin/su").exists() || new File("/system/xbin/su").exists()) {
IsRoot = true;
} else {
IsRoot = true;
}
} catch (Exception e) {

}
Log.i("info","isRoot******"+IsRoot);
return IsRoot;
}
}

上面那个是随手写的，你随便看看（其实太简单了，考虑得不周全），下面给个大神的：

/**
* @author Kevin Kowalewski
*
*/
public class Root {

private static String LOG_TAG = Root.class.getName();

public boolean isDeviceRooted() {
if (checkRootMethod1()){return true;}
if (checkRootMethod2()){return true;}
if (checkRootMethod3()){return true;}
return false;
}

public boolean checkRootMethod1(){
String buildTags = android.os.Build.TAGS;

if (buildTags != null && buildTags.contains("test-keys")) {
return true;
}
return false;
}

public boolean checkRootMethod2(){
try {
File file = new File("/system/app/Superuser.apk");
if (file.exists()) {
return true;
}
} catch (Exception e) { }

return false;
}

public boolean checkRootMethod3() {
if (new ExecShell().executeCommand(SHELL_CMD.check_su_binary) != null){
return true;
}else{
return false;
}
}
}

/**
* @author Kevin Kowalewski
*
*/
public class ExecShell {

private static String LOG_TAG = ExecShell.class.getName();

public static enum SHELL_CMD {
check_su_binary(new String[] {"/system/xbin/which","su"}),
;

String[] command;

SHELL_CMD(String[] command){
this.command = command;
}
}

public ArrayList<string> executeCommand(SHELL_CMD shellCmd){
String line = null;
ArrayList<string> fullResponse = new ArrayList<string>();
Process localProcess = null;

try {
localProcess = Runtime.getRuntime().exec(shellCmd.command);
} catch (Exception e) {
return null;
//e.printStackTrace();
}

BufferedWriter out = new BufferedWriter(new OutputStreamWriter(localProcess.getOutputStream()));
BufferedReader in = new BufferedReader(new InputStreamReader(localProcess.getInputStream()));

try {
while ((line = in.readLine()) != null) {
Log.d(LOG_TAG, "--> Line received: " + line);
fullResponse.add(line);
}
} catch (Exception e) {
e.printStackTrace();
}

Log.d(LOG_TAG, "--> Full response was: " + fullResponse);

return fullResponse;
}
}

建议看仔细看下面那个吧~

Answer 2

【Android】Android 代码判断是否获取ROOT权限
方法比较简单，直接粘贴代码
public synchronized boolean getRootAhth()
{
Process process = null;
DataOutputStream os = null;
try
{
process = Runtime.getRuntime().exec("su");
os = new DataOutputStream(process.getOutputStream());
os.writeBytes("exit\n");
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();
}
}
}

Answer 3

下载终端模拟器，在里面输入"su"

Answer 4

只要现在一个2进制，root软件差看下就行