android 调用shell命令
网上找了好多都不能用，最后群里一朋友给了段代码可以用，记录下
public String exec(String xx) {
Runtime ex = Runtime.getRuntime();
String cmdBecomeSu = "/system/bin/sh -";
String script = xx;
try
{
java.lang.Process runsum = ex.exec(cmdBecomeSu);
int exitVal = 0;
final OutputStreamWriter out = new OutputStreamWriter(runsum.getOutputStream());
BufferedReader in = new BufferedReader(new InputStreamReader(runsum.getInputStream()));
out.write(script);
out.write("\n");
out.flush();
out.write("exit\n");
out.flush();
out.close();
String s = "";
String line = null;
while ((line = in.readLine()) != null) {
s += line + "\n";
}
in.close();
exitVal = runsum.waitFor();
if (exitVal == 0)
{
Log.e("Debug", "Successfully to shell");
return s;
}
}
catch ( Exception e)
{
Log.e("Debug", "Fails to shell");
}
return cmdBecomeSu;
}