如何在Android上创建YouTube的双击手势? [英] How to create youtube's double-tap gesture on Android?

问题描述

我在Android上具有exoplayer的应用程序.我已经创建了youtube的双击手势，可以通过动画向前或向后跳10秒！如何在双击时创建具有波纹效果的半圆?

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?

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该怎么做?

推荐答案

我也想实现这种功能，所以我自己写了它以复制" YouTube的行为.几乎一样.您可以在此处找到包含示例应用程序的库: https://github.com/vkay94/DoubleTapPlayerView

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

说明是用README编写的，但是由于Stackoverflow的原理:

The instructions are written in the README, but due to Stackoverflow principals:

0)要求:

• 最低SDK:16(我还不能测试21以下的版本)
• ExoPlayer2库(至少为2.11.7)，因为替换后的视图写在ExoPlayer的PlayerView上方)

1)将其包括在gradle中(它托管在jitpack.io上，因此您必须将其添加到存储库中):

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:1.0.0'
}

2)在XML内添加视图:

<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
    
    <com.github.vkay94.dtpv.DoubleTapPlayerView
        android:id="@+id/playerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        
        app:dtpv_controller="@+id/youtube_overlay" />

    <com.github.vkay94.dtpv.youtube.YouTubeOverlay
        android:id="@+id/youtube_overlay"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="invisible"
        
        app:yt_playerView="@+id/playerView" />
</FrameLayout>

3)在活动中进行设置:

youtube_overlay
    .performListener(object : YouTubeOverlay.PerformListener {
        override fun onAnimationStart() {
            // Do UI changes when circle scaling animation starts (e.g. hide controller views)
            youtube_overlay.visibility = View.VISIBLE
        }

        override fun onAnimationEnd() {
            // Do UI changes when circle scaling animation starts (e.g. show controller views)
            youtube_overlay.visibility = View.GONE
        }
    })
    // Uncomment this line if you haven't set yt_playerView in XML
    // .playerView(playerView)

// Uncomment this line if you haven't set dtpv_controller in XML 
// playerView.controller(youtube_overlay)

// Call this method whenever the player is released and recreated
youtube_overlay.player(simpleExoPlayer)

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