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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.example.android.supportv7.media;
     18 
     19 import com.example.android.supportv7.R;
     20 
     21 import android.app.Dialog;
     22 import android.content.Context;
     23 import android.content.Intent;
     24 import android.graphics.Bitmap;
     25 import android.os.Bundle;
     26 import android.support.v7.app.MediaRouteControllerDialog;
     27 import android.support.v7.media.MediaRouteSelector;
     28 import android.support.v7.media.MediaRouter;
     29 import android.util.Log;
     30 import android.view.KeyEvent;
     31 import android.view.MotionEvent;
     32 import android.view.View;
     33 import android.widget.ImageButton;
     34 import android.widget.ImageView;
     35 import android.widget.LinearLayout;
     36 import android.widget.TextView;
     37 
     38 /**
     39  * This class serves as an example on how to customize the media router control
     40  * dialog. It is derived from the standard MediaRouteControllerDialog with the
     41  * following overrides:
     42  *
     43  *   1. Shows thumbnail/snapshot of the current item
     44  *
     45  *   2. For variable volume routes, only allow volume control via Volume Up/Down
     46  *      keys (to prevent accidental tapping on the volume adjust seekbar that sets
     47  *      volume to maximum)
     48  *
     49  *   3. Provides transport control buttons (play/pause, stop)
     50  */
     51 public class SampleMediaRouteControllerDialog extends MediaRouteControllerDialog {
     52     private static final String TAG = "SampleMediaRouteControllerDialog";
     53     private final SampleMediaRouterActivity mActivity;
     54     private final SessionManager mSessionManager;
     55     private final Player mPlayer;
     56     private ImageButton mPauseResumeButton;
     57     private ImageButton mStopButton;
     58     private ImageView mThumbnail;
     59     private TextView mTextView;
     60     private LinearLayout mInfoLayout;
     61     private LinearLayout mVolumeLayout;
     62 
     63     public SampleMediaRouteControllerDialog(Context context,
     64             SessionManager manager, Player player) {
     65         super(context);
     66         mActivity = (SampleMediaRouterActivity) context;
     67         mSessionManager = manager;
     68         mPlayer = player;
     69     }
     70 
     71     @Override
     72     public View onCreateMediaControlView(Bundle savedInstanceState) {
     73         // Thumbnail and Track info
     74         View v = getLayoutInflater().inflate(R.layout.sample_media_controller, null);
     75         mInfoLayout = (LinearLayout)v.findViewById(R.id.media_route_info);
     76         mTextView = (TextView)v.findViewById(R.id.track_info);
     77         mThumbnail = (ImageView)v.findViewById(R.id.snapshot);
     78 
     79         // Transport controls
     80         mPauseResumeButton = (ImageButton)v.findViewById(R.id.pause_resume_button);
     81         mPauseResumeButton.setOnClickListener(new View.OnClickListener() {
     82             @Override
     83             public void onClick(View v) {
     84                 if (mActivity != null) {
     85                     mActivity.handleMediaKey(new KeyEvent(KeyEvent.ACTION_DOWN,
     86                         KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE));
     87                 }
     88             }
     89         });
     90 
     91         mStopButton = (ImageButton)v.findViewById(R.id.stop_button);
     92         mStopButton.setOnClickListener(new View.OnClickListener() {
     93             @Override
     94             public void onClick(View v) {
     95                 if (mActivity != null) {
     96                     mActivity.handleMediaKey(new KeyEvent(KeyEvent.ACTION_DOWN,
     97                         KeyEvent.KEYCODE_MEDIA_STOP));
     98                 }
     99             }
    100         });
    101 
    102         // update session status (will callback to updateUi at the end)
    103         mSessionManager.updateStatus();
    104         return v;
    105     }
    106 
    107     public void updateUi() {
    108         String trackInfo = mPlayer.getDescription();
    109         Bitmap snapshot = mPlayer.getSnapshot();
    110         if (mPlayer.isRemotePlayback() && !trackInfo.isEmpty() && snapshot != null) {
    111             mInfoLayout.setVisibility(View.VISIBLE);
    112             mThumbnail.setImageBitmap(snapshot);
    113             mTextView.setText(trackInfo);
    114         } else {
    115             mInfoLayout.setVisibility(View.GONE);
    116         }
    117         // show pause or resume icon depending on current state
    118         mPauseResumeButton.setImageResource(mSessionManager.isPaused() ?
    119                 R.drawable.ic_media_play : R.drawable.ic_media_pause);
    120     }
    121 }
    122