src/com/android/settings/inputmethod/InputMethodAndSubtypeEnabler.java

/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * 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 com.android.settings.inputmethod;

import android.app.settings.SettingsEnums;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.text.TextUtils;

import com.android.settings.R;
import com.android.settings.dashboard.DashboardFragment;

public class InputMethodAndSubtypeEnabler extends DashboardFragment {

    private static final String TAG = "InputMethodAndSubtypeEnabler";

    @Override
    public int getMetricsCategory() {
        return SettingsEnums.INPUTMETHOD_SUBTYPE_ENABLER;
    }

    @Override
    protected int getPreferenceScreenResId() {
        return R.xml.input_methods_subtype;
    }

    @Override
    protected String getLogTag() {
        return TAG;
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);

        // Input method id should be available from an Intent when this preference is launched as a
        // single Activity (see InputMethodAndSubtypeEnablerActivity). It should be available
        // from a preference argument when the preference is launched as a part of the other
        // Activity (like a right pane of 2-pane Settings app)
        final String targetImi = getStringExtraFromIntentOrArguments(
                android.provider.Settings.EXTRA_INPUT_METHOD_ID);

        use(InputMethodAndSubtypePreferenceController.class).initialize(this /* fragment */,
                targetImi);
    }

    private String getStringExtraFromIntentOrArguments(final String name) {
        final Intent intent = getActivity().getIntent();
        final String fromIntent = intent.getStringExtra(name);
        if (fromIntent != null) {
            return fromIntent;
        }
        final Bundle arguments = getArguments();
        return (arguments == null) ? null : arguments.getString(name);
    }

    @Override
    public void onActivityCreated(final Bundle icicle) {
        super.onActivityCreated(icicle);
        final String title = getStringExtraFromIntentOrArguments(Intent.EXTRA_TITLE);
        if (!TextUtils.isEmpty(title)) {
            getActivity().setTitle(title);
        }
    }
}