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      1 /*
      2  * Copyright (C) 2015 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 package com.android.messaging.ui;
     17 
     18 /**
     19  * An interface for a UI element ("View") that reflects the playback state of a piece of media
     20  * content. It needs to support the ability to take common playback commands (play, pause, stop,
     21  * restart) and reflect the state in UI (through timer or progress bar etc.)
     22  */
     23 public interface PlaybackStateView {
     24     /**
     25      * Restart the playback.
     26      */
     27     void restart();
     28 
     29     /**
     30      * Reset ("stop") the playback to the starting position.
     31      */
     32     void reset();
     33 
     34     /**
     35      * Resume the playback, or start it if it hasn't been started yet.
     36      */
     37     void resume();
     38 
     39     /**
     40      * Pause the playback.
     41      */
     42     void pause();
     43 }
     44