目录
什么是ExoPlayer
ExoPlayer是由Google开发的媒体播放器库,支持播放本地和网络视频。以下是使用ExoPlayer播放视频的详细步骤和代码示例。
一、基本使用
下面实现如下图所示的两个播放器的效果:
1、添加依赖项
build.gradle添加:
implementation 'com.google.android.exoplayer:exoplayer-core:2.15.1' implementation 'com.google.android.exoplayer:exoplayer-ui:2.15.1'
声明网络权限
2、布局
3、Activity
public class MainActivity extends AppCompatActivity { private SimpleExoPlayer mPlayer; private SimpleExoPlayer mPlayer2; private PlayerView mPlayerView; private PlayerView mPlayerView2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mPlayerView = findViewById(R.id.player_view); mPlayerView2 = findViewById(R.id.player_view2); // 创建媒体播放器 mPlayer = new SimpleExoPlayer.Builder(this).build(); mPlayer2 = new SimpleExoPlayer.Builder(this).build(); mPlayerView.setPlayer(mPlayer); mPlayerView2.setPlayer(mPlayer2); // 设置数据源 String videoUrl = "https://v2.kwaicdn.com/upic/2023/04/14/13/BMjAyMzA0MTQxMzA3MDhfNDgwOTQ5MTg2XzEwMDU1NzkwNjgxMV8yXzM=_b_B4856a8b07ea4dbc4ad503f04681b5ec8.mp4?pkey=AAW-JkY6q-BoTEXl2FArO1ReMGt965IaFcPl0NGX7cYTVhLtgZVdld15RtYUAWwkkEmBjjKBPE2yDFb0kigIji2xGTYcxXU-rCTrXNQiN4N4_RpUja5SPyx99Eh46Cixcag&tag=1-1684724589-unknown-0-0eoiahcqin-0a0841bce7d498e5&clientCacheKey=3xt93xmd7emzv6k_b.mp4"; String videoUrl2 = "https://v2.kwaicdn.com/upic/2023/05/20/16/BMjAyMzA1MjAxNjAyMjhfMTM2MDg5NzAyNl8xMDM1MjIwNDgzMjFfMl8z_b_B0d97abd06757be9906cd83e0571dcd7d.mp4?pkey=AAX4DgH_Q4KBjVVQpeITMyNxi34_0KOD7Dp80qxpwuNV4BfONaasSnAkBrFPEdGKbfj0m9Jd_VGG-isTQxiQGOlUQ6e2OKuPO2f72pFUVdxdEJkqCVpijL4zsJu3mMtoBfc&tag=1-1684724589-unknown-0-hilddj6arr-772b90a0f590e795&clientCacheKey=3xhd9ng5fbii652_b.mp4"; MediaItem mediaItem = MediaItem.fromUri(videoUrl); MediaItem mediaItem2 = MediaItem.fromUri(videoUrl2); mPlayer.setMediaItem(mediaItem); mPlayer2.setMediaItem(mediaItem2); mPlayer.prepare(); mPlayer2.prepare(); }// 以下是生命周期管理 @Override protected void onStart() { super.onStart(); mPlayerView.onResume(); } @Override protected void onStop() { super.onStop(); mPlayerView.onPause(); } @Override protected void onDestroy() { super.onDestroy(); mPlayer.release(); }// 注意:在使用ExoPlayer时,需要在Activity中保持屏幕常亮以避免视频播放过程中屏幕自动关闭。 @Override protected void onResume() { super.onResume(); getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); } @Override protected void onPause() { super.onPause(); getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); }}
二、自定义播放暂停
1、首先如何隐藏默认的开始暂停和快进?
隐藏它们很简单,只需把use_controller设置成false即可。
2、自定义
ExoPlayer还提供了很多控制视频播放的API,如暂停、继续、快进、快退、调整音量、调整亮度等。下面将介绍如何实现视频的暂停和继续播放。
在Activity中添加下面的代码:
private boolean isPlaying = false;private void togglePlay() { if (isPlaying) { player.pause(); } else { player.play(); } isPlaying = !isPlaying;}
利用isPlaying布尔变量记录当前视频的播放状态,使用player.pause()方法暂停视频,使用player.play()方法继续播放视频,并且通过isPlaying变量更新当前播放状态。
在SimpleExoPlayerView中添加点击事件:
playerView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { togglePlay(); }});
这样就可以实现通过点击视频区域来暂停和继续视频的播放。
三、控制视频画面旋转和比例调整
xoPlayer支持旋转视频画面和调整视频比例的功能。下面将介绍如何使用ExoPlayer来实现这些功能。
使用代码旋转视频画面,可以调用SimpleExoPlayerView.setUseController(false)方法隐藏内置的控制器,然后利用下面的代码实现视频旋转:
playerView.setKeepScreenOn(true);playerView.setRotation(90);playerView.setResizeMode(AspectRatioFrameLayout.RESIZE_MODE_FIT);
通过playerView.setKeepScreenOn(true)方法保持屏幕常亮,playerView.setRotation(90)方法实现视频的旋转,playerView.setResizeMode(AspectRatioFrameLayout.RESIZE_MODE_FIT)方法调整视频的比例。
四、全屏放大和缩小
实现视频画面的缩放,可以通过以下代码实现:
private boolean isFullscreen = false;private void toggleFullscreen() { if (isFullscreen) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); playerView.setResizeMode(AspectRatioFrameLayout.RESIZE_MODE_FIT); getSupportActionBar().show(); } else { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); playerView.setResizeMode(AspectRatioFrameLayout.RESIZE_MODE_FILL); getSupportActionBar().hide(); } isFullscreen = !isFullscreen;}
利用isFullscreen布尔变量记录当前是否全屏状态,使用setRequestedOrientation()方法实现屏幕的旋转,使用getWindow().addFlags()和getWindow().clearFlags()方法实现全屏状态的切换,并且使用playerView.setResizeMode()方法调整视频的比例。在全屏状态下隐藏ActionBar,退出全屏状态后显示ActionBar。
1、双击视频放大缩小
在SimpleExoPlayerView中添加双击事件:
playerView.setOnTouchListener(new View.OnTouchListener() { private GestureDetector gestureDetector = new GestureDetector(MainActivity.this, new GestureDetector.SimpleOnGestureListener() { @Override public boolean onDoubleTap(MotionEvent e) { toggleFullscreen(); return super.onDoubleTap(e); } }); @Override public boolean onTouch(View view, MotionEvent motionEvent) { gestureDetector.onTouchEvent(motionEvent); return true; }});
这样就可以实现在双击视频区域时切换视频的全屏状态。
2、按钮放大缩小
mBtnZoom.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { toggleFullscreen(); } });
五、完整的实现代码
如果看不懂前面的操作,可以直接用下面的代码,有点击按钮和双击视频全屏放大缩小效果。
XML
Activity
public class MainActivity extends AppCompatActivity { private SimpleExoPlayer mPlayer; private PlayerView mPlayerView; private Button mBtnZoom; private boolean isFullscreen = false; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mPlayerView = findViewById(R.id.player_view); mBtnZoom = findViewById(R.id.btn_zoom);// 创建媒体播放器 mPlayer = new SimpleExoPlayer.Builder(this).build(); mPlayerView.setPlayer(mPlayer);// 准备视频源 String videoUrl = "https://v2.kwaicdn.com/upic/2023/04/14/13/BMjAyMzA0MTQxMzA3MDhfNDgwOTQ5MTg2XzEwMDU1NzkwNjgxMV8yXzM=_b_B4856a8b07ea4dbc4ad503f04681b5ec8.mp4?pkey=AAW-JkY6q-BoTEXl2FArO1ReMGt965IaFcPl0NGX7cYTVhLtgZVdld15RtYUAWwkkEmBjjKBPE2yDFb0kigIji2xGTYcxXU-rCTrXNQiN4N4_RpUja5SPyx99Eh46Cixcag&tag=1-1684724589-unknown-0-0eoiahcqin-0a0841bce7d498e5&clientCacheKey=3xt93xmd7emzv6k_b.mp4"; String videoUrl2 = "https://v2.kwaicdn.com/upic/2023/05/20/16/BMjAyMzA1MjAxNjAyMjhfMTM2MDg5NzAyNl8xMDM1MjIwNDgzMjFfMl8z_b_B0d97abd06757be9906cd83e0571dcd7d.mp4?pkey=AAX4DgH_Q4KBjVVQpeITMyNxi34_0KOD7Dp80qxpwuNV4BfONaasSnAkBrFPEdGKbfj0m9Jd_VGG-isTQxiQGOlUQ6e2OKuPO2f72pFUVdxdEJkqCVpijL4zsJu3mMtoBfc&tag=1-1684724589-unknown-0-hilddj6arr-772b90a0f590e795&clientCacheKey=3xhd9ng5fbii652_b.mp4"; MediaItem mediaItem = MediaItem.fromUri(videoUrl); MediaItem mediaItem2 = MediaItem.fromUri(videoUrl2); mPlayer.setMediaItem(mediaItem); mPlayer.prepare();// 按钮放大缩小 mBtnZoom.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { toggleFullscreen(); } });// 双击视频放大缩小 mPlayerView.setOnTouchListener(new View.OnTouchListener() { private GestureDetector gestureDetector = new GestureDetector(MainActivity.this, new GestureDetector.SimpleOnGestureListener() { @Override public boolean onDoubleTap(MotionEvent e) {toggleFullscreen();return super.onDoubleTap(e); } }); @Override public boolean onTouch(View view, MotionEvent motionEvent) { gestureDetector.onTouchEvent(motionEvent); return true; } }); }// 视频放大缩小方法 private void toggleFullscreen() { if (isFullscreen) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); mPlayerView.setResizeMode(AspectRatioFrameLayout.RESIZE_MODE_FIT); getSupportActionBar().show(); } else { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); mPlayerView.setResizeMode(AspectRatioFrameLayout.RESIZE_MODE_FILL); getSupportActionBar().hide(); } isFullscreen = !isFullscreen; }// 以下是生命周期 @Override protected void onStart() { super.onStart(); mPlayerView.onResume(); } @Override protected void onStop() { super.onStop(); mPlayerView.onPause(); } @Override protected void onDestroy() { super.onDestroy(); mPlayer.release(); }// 注意:在使用ExoP注意:在使用ExoPlayer时,需要在Activity中保持屏幕常亮以避免视频播放过程中屏幕自动关闭。layer时,需要在Activity中保持屏幕常亮以避免视频播放过程中屏幕自动关闭。 @Override protected void onResume() { super.onResume(); getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); } @Override protected void onPause() { super.onPause(); getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); }}
最后不要忘记添加网络权限!
来源地址:https://blog.csdn.net/Tir_zhang/article/details/130806968