| /* |
| * Copyright (C) 2016 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.car.radio; |
| |
| import android.animation.ObjectAnimator; |
| import android.os.Bundle; |
| import android.support.v4.app.Fragment; |
| import android.support.v4.view.animation.FastOutSlowInInterpolator; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| |
| /** |
| * A fragment that functions as the main display of the information relating to the current radio |
| * station. It also displays controls that allows the user to switch to different radio stations. |
| */ |
| public class MainRadioFragment extends Fragment implements FragmentWithFade { |
| private static final FastOutSlowInInterpolator sInterpolator = new FastOutSlowInInterpolator(); |
| private static final int FADE_OUT_START_DELAY_MS = 150; |
| private static final int FADE_ANIM_TIME_MS = 100; |
| |
| private RadioController mRadioController; |
| private RadioPresetListClickListener mPresetListListener; |
| |
| private View mRootView; |
| private View mMainDisplay; |
| |
| /** |
| * Interface for a class that will be notified when the button to open the list of the user's |
| * favorite radio stations has been clicked. |
| */ |
| public interface RadioPresetListClickListener { |
| /** |
| * Method that will be called when the preset list button has been clicked. Clicking this |
| * button should open a display of the user's presets. |
| */ |
| void onPresetListClicked(); |
| } |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, ViewGroup container, |
| Bundle savedInstanceState) { |
| mRootView = inflater.inflate(R.layout.radio_fragment, container, false); |
| |
| mMainDisplay = mRootView.findViewById(R.id.radio_station_display_container); |
| |
| mRootView.findViewById(R.id.radio_presets_list).setOnClickListener(v -> { |
| if (mPresetListListener != null) { |
| mPresetListListener.onPresetListClicked(); |
| } |
| }); |
| |
| return mRootView; |
| } |
| |
| @Override |
| public void fadeOutContent() { |
| ObjectAnimator containerAlphaAnimator = |
| ObjectAnimator.ofFloat(mMainDisplay, View.ALPHA, 1f, 0f); |
| containerAlphaAnimator.setInterpolator(sInterpolator); |
| containerAlphaAnimator.setStartDelay(FADE_OUT_START_DELAY_MS); |
| containerAlphaAnimator.setDuration(FADE_ANIM_TIME_MS); |
| containerAlphaAnimator.start(); |
| } |
| |
| @Override |
| public void fadeInContent() { |
| ObjectAnimator containerAlphaAnimator = |
| ObjectAnimator.ofFloat(mMainDisplay, View.ALPHA, 0f, 1f); |
| containerAlphaAnimator.setInterpolator(sInterpolator); |
| containerAlphaAnimator.setDuration(FADE_ANIM_TIME_MS); |
| containerAlphaAnimator.start(); |
| } |
| |
| @Override |
| public void onStart() { |
| super.onStart(); |
| |
| mRadioController.initialize(mRootView); |
| mRadioController.setShouldColorStatusBar(true); |
| |
| fadeInContent(); |
| } |
| |
| @Override |
| public void onStop() { |
| super.onStop(); |
| fadeOutContent(); |
| } |
| |
| @Override |
| public void onDestroy() { |
| mPresetListListener = null; |
| super.onDestroy(); |
| } |
| |
| /** |
| * Returns a new instance of the {@link MainRadioFragment}. |
| * |
| * @param radioController The {@link RadioController} that is responsible for updating the UI |
| * of the returned fragment. |
| */ |
| static MainRadioFragment newInstance(RadioController radioController, |
| RadioPresetListClickListener clickListener) { |
| MainRadioFragment fragment = new MainRadioFragment(); |
| fragment.mRadioController = radioController; |
| fragment.mPresetListListener = clickListener; |
| |
| return fragment; |
| } |
| } |