Instalasi APK tanpa persetujuan user

Process p = null;
try {
p = Runtime.getRuntime().exec(“su”);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
DataOutputStream outs=new DataOutputStream(p.getOutputStream());
String cmd=”pm install -r /sdcard/download.apk”;
try {
outs.writeBytes(cmd+”\n”);
finish();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();

}