ImeUtils.java

/*
 * Copyright 2015 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.plaidapp.util;

import android.content.Context;
import android.os.ResultReceiver;
import android.support.annotation.NonNull;
import android.view.View;
import android.view.inputmethod.InputMethodManager;

import java.lang.reflect.Method;

/**
 * Utility methods for working with the keyboard
 */
public class ImeUtils {

    private ImeUtils() { }

    public static void showIme(@NonNull View view) {
        InputMethodManager imm = (InputMethodManager) view.getContext().getSystemService
                (Context.INPUT_METHOD_SERVICE);
        // the public methods don't seem to work for me, so… reflection.
        try {
            Method showSoftInputUnchecked = InputMethodManager.class.getMethod(
                    "showSoftInputUnchecked", int.class, ResultReceiver.class);
            showSoftInputUnchecked.setAccessible(true);
            showSoftInputUnchecked.invoke(imm, 0, null);
        } catch (Exception e) {
            // ho hum
        }
    }

    public static void hideIme(@NonNull View view) {
        InputMethodManager imm = (InputMethodManager) view.getContext().getSystemService(Context
                .INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
    }

}