ExoPlayer

Question

我最近将 ExoPlayer 添加到我的 Android 项目中。由于他们的网站，设置和播放音频剪辑相对简单。我可以从 API 获取音频文件并播放它，但问题是，PlayerControlView 在播放开始后立即消失。有没有一种方法可以强制 PlayerControlView 在整个音频剪辑播放过程中保持不变？这是我的 XML 包含 PlayerControlView 的片段：

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".SetupWizard.NewHouseInformationFragment"
android:orientation="vertical">
<TextView android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="5dp"
    app:layout_constraintTop_toTopOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    android:text="@string/why_join_a_house_string"
    android:fontFamily="sans-serif-light"
    android:textColor="@android:color/black"
    android:id = "@+id/HouseDescriptionTitleTextView"
    />
<TextView
    android:id = "@+id/WhyCreateHouseTitleTextView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textSize="18sp"
    android:fontFamily="sans-serif-medium"
    android:text="@string/why_create_house_string"
    android:textColor="@android:color/black"
    app:layout_constraintTop_toBottomOf="@id/HouseDescriptionTitleTextView"
    android:layout_margin="5dp"/>
<TextView
    android:fontFamily="sans-serif-light"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="@string/manage_your_niche_network"
    android:drawableStart="@drawable/ic_check"
    android:drawablePadding="5dp"
    android:layout_margin="5dp"
    android:id = "@+id/CreateNicheNetworksTextView"
    android:textColor="@android:color/black"
    app:layout_constraintTop_toBottomOf="@id/WhyCreateHouseTitleTextView"/>
<TextView
    android:fontFamily="sans-serif-light"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textColor="@android:color/black"
    android:text="@string/share_content_string"
    android:drawableStart="@drawable/ic_check"
    android:drawablePadding="5dp"
    android:layout_margin="5dp"
    android:id = "@+id/ShareMultimediaTextView"
    app:layout_constraintTop_toBottomOf="@id/CreateNicheNetworksTextView"
    />
<TextView
    android:fontFamily="sans-serif-light"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textColor="@android:color/black"
    android:text="@string/send_broadcasts_messages"
    android:id = "@+id/SendBroadcastsTextView"
    android:layout_margin="5dp"
    android:drawableStart="@drawable/ic_check"
    android:drawablePadding="5dp"
    app:layout_constraintTop_toBottomOf="@id/ShareMultimediaTextView"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    />
<ImageView
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:id = "@+id/NewHouseContentImage"
    app:layout_constraintTop_toBottomOf="@id/FullControlTextView"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintVertical_weight="1"
    android:layout_margin="5dp"
    app:srcCompat = "@drawable/ic_chatting"
    android:adjustViewBounds="true"
    app:layout_constraintBottom_toTopOf="@id/CreateHousePlayerView"/>
<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="@string/be_your_own_boss"
    android:textColor="@android:color/black"
    android:fontFamily="sans-serif-light"
    android:drawableStart="@drawable/ic_check"
    app:layout_constraintTop_toBottomOf="@id/SendBroadcastsTextView"
    android:layout_margin="5dp"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    android:drawablePadding="5dp"
    android:id = "@+id/FullControlTextView"/>
<com.google.android.exoplayer2.ui.PlayerControlView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:layout_constraintBottom_toBottomOf="parent"
    android:id = "@+id/CreateHousePlayerView"
    android:layout_margin="5dp"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    />

Answer 1

仔细查看文档后，我发现了以下信息：

The following attributes can be set on a PlayerControlView when used in a layout XML file:

show_timeout - The time between the last user interaction and the controls being automatically hidden, in milliseconds. Use zero if the controls should not automatically timeout.

因此，我进入我的 PlayerControlView 并将 show_timeout 属性设置为零。现在播放器控制视图不会在一段时间后消失。

<com.google.android.exoplayer2.ui.PlayerControlView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:show_timeout="0"
    app:layout_constraintBottom_toBottomOf="parent"
    android:id = "@+id/CreateHousePlayerView"
    android:layout_margin="5dp"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintTop_toBottomOf="@id/NewHouseContentImage"
    />

来源：https://google.github.io/ExoPlayer/doc/reference/com/google/android/exoplayer2/ui/PlayerControlView.html

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android