wearable/wear/WearAccessibilityApp/Wearable/src/main/java/com/example/android/wearable/wear/wearaccessibilityapp/InLineActivity.java

/*
 * Copyright (C) 2017 Google Inc. All Rights Reserved.
 *
 * 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.example.android.wearable.wear.wearaccessibilityapp;

import android.os.Bundle;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceFragment;
import android.preference.PreferenceScreen;
import android.preference.SwitchPreference;

import androidx.fragment.app.FragmentActivity;
import androidx.wear.ambient.AmbientModeSupport;

public class InLineActivity extends FragmentActivity implements
        AmbientModeSupport.AmbientCallbackProvider {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        AmbientModeSupport.attach(this);

        getFragmentManager()
                .beginTransaction()
                .replace(android.R.id.content, new InLinePrefFragment())
                .commit();
    }

    public static class InLinePrefFragment extends PreferenceFragment {

        private SwitchPreference mDeterminantSwitchPref;
        private CircledImageViewPreference mCircledImageViewPref;
        private ProgressBarPreference mProgressBarPreference;
        private PreferenceScreen mPreferenceScreen;

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            // Load the preferences from an XML resource
            addPreferencesFromResource(R.xml.prefs_in_line_progress);

            mDeterminantSwitchPref =
                    (SwitchPreference)
                            findPreference(getString(R.string.key_pref_determinant_switch));
            mDeterminantSwitchPref.setChecked(true);

            mCircledImageViewPref =
                    (CircledImageViewPreference)
                            findPreference(getString(R.string.key_pref_circled_image_view));

            mPreferenceScreen =
                    (PreferenceScreen) findPreference(getString(R.string.key_pref_progress_screen));

            mProgressBarPreference = new ProgressBarPreference(getContext());
            mProgressBarPreference.setTitle("@string/indeterminant_progress");

            mDeterminantSwitchPref.setOnPreferenceChangeListener(
                    new OnPreferenceChangeListener() {
                        @Override
                        public boolean onPreferenceChange(Preference preference, Object newValue) {
                            mDeterminantSwitchPref.setChecked(!mDeterminantSwitchPref.isChecked());
                            if (mDeterminantSwitchPref.isChecked()) {
                                mCircledImageViewPref.cancelCountDownTimer();
                                mCircledImageViewPref.setStartCircledImageView();
                                mPreferenceScreen.removePreference(mProgressBarPreference);
                                mPreferenceScreen.addPreference(mCircledImageViewPref);
                            } else {
                                mPreferenceScreen.removePreference(mCircledImageViewPref);
                                mPreferenceScreen.addPreference(mProgressBarPreference);
                            }
                            return true;
                        }
                    });
        }
    }

    @Override
    public AmbientModeSupport.AmbientCallback getAmbientCallback() {
        return new MyAmbientCallback();
    }

    private class MyAmbientCallback extends AmbientModeSupport.AmbientCallback {}
}