Android Exoplayer SimpleExoPlayerView 播放/暂停事件

Question

有没有办法挂接到 SimpleExoPlayerView 控件的播放/暂停点击事件？我正在尝试将 chromecast 连接到我的播放 Activity ，我需要能够响应播放事件以确定 exoplayer 应该播放内容还是应该将其发送到 chromecast。

我认为 onPlayerStateChanged 可能对此有所帮助，但我看不到 ExoPlayer.STATE_PLAYING 状态。

Answer 1

in XML

           <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/mainlayout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@color/bgFrag">

            <com.google.android.exoplayer2.ui.PlayerView
                android:id="@+id/playerview"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:visibility="visible"
                app:use_controller="true"
                app:controller_layout_id="@layout/item_player_controler"
                app:keep_content_on_player_reset="true"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                app:resize_mode="zoom"
                app:shutter_background_color="@color/transperent">


            </com.google.android.exoplayer2.ui.PlayerView>
            

            <ImageView
                android:id="@+id/ivExoPlayPause"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:scaleType="centerInside"
                android:visibility="invisible"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                app:srcCompat="@drawable/ic_play" />
</<androidx.constraintlayout.widget.ConstraintLayout>

item_player_controler.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:visibility="visible"
    android:layout_height="match_parent">

    <ImageView android:id="@id/exo_play"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="center"
        android:button="@null"
        android:scaleType="centerInside"
       />

    <ImageView android:id="@id/exo_pause"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="center"
        android:visibility="visible"
        android:button="@null"
        android:scaleType="centerInside"
        />

</FrameLayout>

in Java

videoviewholder.playerview.findViewById(R.id.exo_play).setOnClickListener(view->{
                    ToastUtils.showShort("play");
                    videoviewholder.videoItemBinding.ivExoPlayPause.setVisibility(View.INVISIBLE);
                    videoviewholder.videoItemBinding.playerview.getPlayer().setPlayWhenReady(true);
    
                });

   videoviewholder.playerview.findViewById(R.id.exo_pause).setOnClickListener(view->{
                    ToastUtils.showShort("pause");
                    videoviewholder.videoItemBinding.ivExoPlayPause.setVisibility(View.VISIBLE);
                    videoviewholder.videoItemBinding.playerview.getPlayer().setPlayWhenReady(false);
    
                });
    
                videoviewholder.playerview.setControllerAutoShow(true);
                videoviewholder.playerview.setControllerShowTimeoutMs(0);
                videoviewholder.playerview.setControllerHideOnTouch(false);
                videoviewholder.playerview.setPlayer(player);