如何使用 YouTube API 在安卓系统中播放 YouTube 视频？

原文:https://www . geesforgeks . org/how-play-YouTube-Android 中的视频-使用-youtube-api/

YouTube 安卓播放器应用编程接口允许您在不离开应用的情况下播放应用内的任何 YouTube 视频或播放列表。下面给出了一个示例视频，以了解我们将在本文中做什么。注意，我们将使用 Java 和柯特林语言来实现这个项目。

分步实施

第一步:创建新项目

要在安卓工作室创建新项目，请参考如何在安卓工作室创建/启动新项目。注意，选择柯特林/Java 作为编程语言

第二步:添加 YouTube Player 安卓 API

从 这里 下载添加 YouTube 安卓播放器 API。下载后解压文件，复制到安卓项目的 libs 文件夹。

项目- > app - > libs

第三步:添加渐变依赖

添加以下代码构建. gradle(app)，然后点击立即同步

实现文件(' libs \ \ YoutubeAnDroidplayerapi . jar ')

第四步。添加 API 键播放 YouTube 视频

通过访问此链接添加 API 密钥。创建一个新项目，或者选择现有项目，创建一个应用编程接口密钥并保存在某个地方。我们稍后将在代码中使用它。

第五步:添加互联网权限

前往 AndroidManifest.xml 添加互联网权限。我们将需要它，以便在我们的应用程序中播放视频。

第 6 步:使用 activity_main.xml 文件

转到 activity_main.xml 文件，参考以下代码。下面是 activity_main.xml 文件的代码。

可扩展标记语言

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <com.google.android.youtube.player.YouTubePlayerView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/ytPlayer"
        app:layout_constraintTop_toTopOf="parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>

步骤 7:使用主活动文件

转到主活动文件，参考以下代码。以下是主活动文件的代码。代码中添加了注释，以更详细地理解代码。

Java 语言(一种计算机语言，尤用于创建网站)

import android.os.Bundle;
import android.widget.Toast;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import com.google.android.youtube.player.YouTubeInitializationResult;
import com.google.android.youtube.player.YouTubePlayer;
import com.google.android.youtube.player.YouTubePlayerView;

public class MainActivity extends AppCompatActivity {

    String api_key = "Enter your API key here";

    @Override
    protected void
    onCreate(@Nullable Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Get reference to the view of Video player
        YouTubePlayerView ytPlayer = (YouTubePlayerView)findViewById(R.id.ytPlayer);

        ytPlayer.initialize(
            api_key,
            new YouTubePlayer.OnInitializedListener() {
                // Implement two methods by clicking on red
                // error bulb inside onInitializationSuccess
                // method add the video link or the playlist
                // link that you want to play In here we
                // also handle the play and pause
                // functionality
                @Override
                public void onInitializationSuccess(
                    YouTubePlayer.Provider provider,
                    YouTubePlayer youTubePlayer, boolean b)
                {
                    youTubePlayer.loadVideo("HzeK7g8cD0Y");
                    youTubePlayer.play();
                }

                // Inside onInitializationFailure
                // implement the failure functionality
                // Here we will show toast
                @Override
                public void onInitializationFailure(YouTubePlayer.Provider provider,
                                                    YouTubeInitializationResult
                                                    youTubeInitializationResult)
                {
                    Toast.makeText(getApplicationContext(), "Video player Failed", Toast.LENGTH_SHORT).show();
                }
            });
    }
}

我的锅

import android.os.Bundle
import android.widget.Toast
import com.google.android.youtube.player.YouTubeBaseActivity
import com.google.android.youtube.player.YouTubeInitializationResult
import com.google.android.youtube.player.YouTubePlayer
import com.google.android.youtube.player.YouTubePlayerView

class MainActivity : YouTubeBaseActivity() {

    // Change the AppCompactActivity to YouTubeBaseActivity()

    // Add the api key that you had
    // copied from google API
    // This is a dummy api key
    val api_key =  "Enter your API key here"

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        // Get reference to the view of Video player
        val ytPlayer = findViewById<YouTubePlayerView>(R.id.ytPlayer)

        ytPlayer.initialize(api_key, object : YouTubePlayer.OnInitializedListener{
            // Implement two methods by clicking on red error bulb
            // inside onInitializationSuccess method
            // add the video link or the
            // playlist link that you want to play
            // In here we also handle the play and pause functionality
            override fun onInitializationSuccess(
                    provider: YouTubePlayer.Provider?,
                    player: YouTubePlayer?,
                    p2: Boolean
            ) {
                player?.loadVideo("HzeK7g8cD0Y")
                player?.play()
            }

            // Inside onInitializationFailure
            // implement the failure functionality
            // Here we will show toast
            override fun onInitializationFailure(
                    p0: YouTubePlayer.Provider?,
                    p1: YouTubeInitializationResult?
            ) {
               Toast.makeText(this@MainActivity , "Video player Failed" , Toast.LENGTH_SHORT).show()
            }
        })
    }
}

输出:

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