Java tutorial
//package com.java2s; import android.content.Context; import android.view.inputmethod.InputMethodManager; public class Main { public static void closeBoard(Context mcontext) { InputMethodManager imm = (InputMethodManager) mcontext.getSystemService(Context.INPUT_METHOD_SERVICE); if (imm.isActive()) imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, InputMethodManager.HIDE_NOT_ALWAYS); } }