如何在Android应用中播放YouTube视频?
本例演示如何在Android中播放YouTube视频。
步骤1 − 在Android Studio中创建一个新项目,转到文件 ⇒ 新建项目,并填写所有必需的详细信息以创建新项目。
步骤2 – 在build.gradle (Module:app)中添加以下依赖项。
implementation 'com.android.support:recyclerview-v7:28.0.0' implementation 'com.android.support:cardview-v7:28.0.0'
步骤3 − 将以下代码添加到res/layout/activity_main.xml。
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout 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" android:padding="16sp" tools:context=".MainActivity"> <android.support.v7.widget.RecyclerView android:id="@+id/recyclerView" android:layout_width="match_parent" android:layout_height="match_parent"> </android.support.v7.widget.RecyclerView> </RelativeLayout>
步骤4 – 创建一个布局资源文件 (Video_view.xml) 并添加以下代码 −
<?xml version="1.0" encoding="utf-8"?> <WebView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/webView" android:layout_width="match_parent" android:layout_height="180dp"> </WebView>
步骤5 – 创建一个Java类youTubeVideos.java并添加以下代码 −
public class youTubeVideos { String videoUrl; public youTubeVideos() { } public youTubeVideos(String videoUrl) { this.videoUrl = videoUrl; } public String getVideoUrl() { return videoUrl; } public void setVideoUrl(String videoUrl) { this.videoUrl = videoUrl; } }
步骤6 – 创建一个Java类VideoAdapter.java并添加以下代码 −
import android.support.v7.widget.RecyclerView; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.webkit.WebChromeClient; import android.webkit.WebView; import java.util.List; public class VideoAdapter extends RecyclerView.Adapter<VideoAdapter.VideoViewHolder> { private List<youTubeVideos> youtubeVideoList; VideoAdapter(List<youTubeVideos> youtubeVideoList) { this.youtubeVideoList = youtubeVideoList; } @Override public VideoViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = LayoutInflater.from( parent.getContext()).inflate(R.layout.video_view, parent, false); return new VideoViewHolder(view); } @Override public void onBindViewHolder(VideoViewHolder holder, int position) { holder.videoWeb.loadData( youtubeVideoList.get(position).getVideoUrl(), "text/html" , "utf-8"); } @Override public int getItemCount() { return youtubeVideoList.size(); } class VideoViewHolder extends RecyclerView.ViewHolder{ WebView videoWeb; VideoViewHolder(View itemView) { super(itemView); videoWeb = itemView.findViewById(R.id.webView); videoWeb.getSettings().setJavaScriptEnabled(true); videoWeb.setWebChromeClient(new WebChromeClient() { } ); } } }
步骤7 − 将以下代码添加到src/MainActivity.java
import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import java.util.Vector; public class MainActivity extends AppCompatActivity { RecyclerView recyclerView; Vector<youTubeVideos> youtubeVideos = new Vector<>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); recyclerView = findViewById(R.id.recyclerView); recyclerView.setHasFixedSize(true); recyclerView.setLayoutManager( new LinearLayoutManager(this)); youtubeVideos.add( new youTubeVideos("<iframe width=\"100%\" height=\"100%\" src=\"https://www" + ".youtube.com/embed/eWEF1Zrmdow\" frameborder=\"0\" allowfullscreen></iframe>") ); youtubeVideos.add( new youTubeVideos("<iframe width=\"100%\" height=\"100%\" src=\"https://www" +".youtube.com/embed/KyJ71G2UxTQ\" frameborder=\"0\" allowfullscreen></iframe>") ); youtubeVideos.add( new youTubeVideos("<iframe width=\"100%\" height=\"100%\" src=\"https://www" +".youtube.com/embed/y8Rr39jKFKU\" frameborder=\"0\" allowfullscreen></iframe>") ); youtubeVideos.add( new youTubeVideos("<iframe width=\"100%\" height=\"100%\" src=\"https://www" +".youtube.com/embed/8Hg1tqIwIfI\" frameborder=\"0\" allowfullscreen></iframe>") ); youtubeVideos.add( new youTubeVideos("<iframe width=\"100%\" height=\"100%\" src=\"https://www" +".youtube.com/embed/uhQ7mh_o_cM\" frameborder=\"0\" allowfullscreen></iframe>") ); VideoAdapter videoAdapter = new VideoAdapter(youtubeVideos); recyclerView.setAdapter(videoAdapter); } }
步骤8 − 将以下代码添加到androidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.sample"> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.INTERNET" /> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
让我们尝试运行您的应用程序。我假设您已将您的实际Android移动设备连接到您的计算机。要在Android Studio中运行应用程序,请打开项目中的一个activity文件,然后单击运行 工具栏中的图标。选择您的移动设备作为选项,然后检查您的移动设备,它将显示您的默认屏幕 –
点击这里下载项目代码。
广告