public static void hideSoftInput(Activity acitivity) {
		LogUtil.d("hideSoftInput");
		InputMethodManager imm = (InputMethodManager) acitivity
				.getSystemService(Context.INPUT_METHOD_SERVICE);
		imm.hideSoftInputFromWindow(acitivity.getWindow().getDecorView()
				.getApplicationWindowToken(),
				InputMethodManager.HIDE_NOT_ALWAYS);
	}
public static void showSoftInput(EditText et) {
		LogUtil.d("showSoftInput");
		et.requestFocus();
		InputMethodManager imm = (InputMethodManager) et.getContext()
				.getSystemService(Context.INPUT_METHOD_SERVICE);
		imm.showSoftInput(et, InputMethodManager.RESULT_UNCHANGED_SHOWN);
}