问题
I have application with exoplayer on Android. I have create youtube's double-tap gesture to jump 10 seconds forward or backward with animation! How create this semicircle with ripple effect on double tap?
Like this
How to do this?
回答1:
I've also wanted to implement such feature, so I wrote it myself to "copy" YouTube's behavior. It's almost the same. You can find the library here including a sample app: https://github.com/vkay94/DoubleTapPlayerView
The instructions are written in the README, but due to Stackoverflow principals:
0) Requirements:
- Minimum SDK: 21 (could be lower, but I've not tested older versions yet)
- ExoPlayer2 library (at least 2.10.4) since the replaced view is written above ExoPlayer's PlayerView
1) Include it to your gradle (it's hosted on jitpack.io so you've got to add it to your respositories):
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
dependencies {
implementation 'com.github.vkay94:DoubleTapPlayerView:0.6.0'
}
2) Add the views inside your XML:
<FrameLayout
... >
<!-- Replace ExoPlayer's PlayerView -->
<com.github.vkay94.dtpv.DoubleTapPlayerView
android:id="@+id/doubletapplayerview"
app:player_layout_id="@layout/exo_simple_player_view"
app:use_controller="true"
...
/>
<!-- Other views e.g. ProgressBar etc -->
<!-- Add the overlay on top of PlayerView -->
<com.github.vkay94.dtpv.YouTubeDoubleTap
android:background="@color/dtp_overlay_dim"
android:id="@+id/youTubeDoubleTap"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</FrameLayout>
3) Set it up inside your activity:
// Link the PlayerView to the overlay to pass increment to the Player (seekTo)
// Important: set the (Simple)ExoPlayer to the PlayerView before this call
youTubeDoubleTap
.setPlayer(doubletapplayerview)
.setForwardRewindIncrementMs(5000)
// Set YouTube overlay to the PlayerView and double tapping enabled (false by default)
doubletapplayerview
.activateDoubleTap(true)
.setDoubleTapDelay(500)
.setDoubleTapListener(youTubeDoubleTap)
//.setDoubleTapListener(this) => handle event directly within´the activity
来源:https://stackoverflow.com/questions/53173346/how-to-create-youtubes-double-tap-gesture-on-android