欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  移动技术

Android多媒体教程之播放视频的四种方法

程序员文章站 2023-11-07 15:34:58
本文主要给大家介绍的是关于android播放视频的四种方法,分享出来供大家参考学习,下面来一起看看详细的介绍: 一、通过intent的方式,调用系统自带的播放器...

本文主要给大家介绍的是关于android播放视频的四种方法,分享出来供大家参考学习,下面来一起看看详细的介绍:

一、通过intent的方式,调用系统自带的播放器

  uri uri = uri.parse("/storage/emulated/0/dcim/camera/20170521_200117.mp4");  
 //调用系统自带的播放器 
  intent intent = new intent(intent.action_view); 
  intent.setdataandtype(uri, "/storage/emulated/0/dcim/camera/20170521_200117.mp4"); 
  startactivity(intent);

二、使用videoview

布局文件

<?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:id="@+id/activity_video_play_by_vv"
 android:layout_width="match_parent"
 android:layout_height="match_parent">

 <videoview
  android:id="@+id/video_view"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>


</relativelayout>

activity

public class videoplaybyvvactivity extends appcompatactivity {

 private videoview mvideoview;

 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
//  requestwindowfeature(window.feature_no_title); //去掉 title
//  setrequestedorientation(activityinfo.screen_orientation_landscape); //设置全屏
//  getwindow().addflags(windowmanager.layoutparams.flag_keep_screen_on); //设置屏幕常亮
  setcontentview(r.layout.activity_video_play_by_vv);
  mvideoview = (videoview) findviewbyid(r.id.video_view);

  init();
 }

 private void init() {

  string path = "/storage/emulated/0/dcim/camera/20170521_200117.mp4";

  uri uri = uri.parse(path);

  mvideoview.setvideopath(path);

  mvideoview.start();
  mvideoview.requestfocus();

 }
}

三、mediaplayer + surfaceview

<?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:id="@+id/activity_video_play_by_sur"
 android:layout_width="match_parent"
 android:layout_height="match_parent">
 <surfaceview
  android:id="@+id/surface_view"
  android:layout_width="180dp"
  android:layout_height="wrap_content"/>
 <linearlayout
  android:layout_alignparentbottom="true"
  android:layout_width="match_parent"
  android:layout_height="40dp">


  <button
   android:id="@+id/stop"
   android:text="stop"
   android:layout_weight="1"
   android:layout_width="0dp"
   android:layout_height="match_parent"/>
  <button
   android:id="@+id/play"
   android:text="play"
   android:layout_weight="1"
   android:layout_width="0dp"
   android:layout_height="match_parent"/>
  <button
   android:id="@+id/pasue"
   android:text="pasue"
   android:layout_weight="1"
   android:layout_width="0dp"
   android:layout_height="match_parent"/>

 </linearlayout>
</relativelayout>

activity

public class videoplaybysuractivity extends appcompatactivity implements view.onclicklistener {

 private surfaceview msurfaceview;
 private mediaplayer mmediaplayer;

 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_video_play_by_sur);
  msurfaceview = (surfaceview) findviewbyid(r.id.surface_view);
  findviewbyid(r.id.stop).setonclicklistener(this);
  findviewbyid(r.id.pasue).setonclicklistener(this);

  findviewbyid(r.id.play).setonclicklistener(this);

  init();
 }

 private void init() {
  mmediaplayer = new mediaplayer();

  msurfaceview.getholder().addcallback(new surfaceholder.callback() {
   @override
   public void surfacecreated(surfaceholder holder) {
    play();
   }

   @override
   public void surfacechanged(surfaceholder holder, int format, int width, int height) {

   }

   @override
   public void surfacedestroyed(surfaceholder holder) {

   }
  });
 }

 @override
 public void onclick(view v) {
  switch (v.getid()){
   case r.id.stop:
    stop();
    break;
   case r.id.play:
    if(!mmediaplayer.isplaying()){
     play();
    }
    break;
   case r.id.pasue:
    pasue();
    break;

  }
 }


 public void stop(){
  if(mmediaplayer.isplaying()){
   mmediaplayer.stop();
  }
 }

 public void pasue(){
  if(mmediaplayer.isplaying()){
   mmediaplayer.pause();
  }else{
   mmediaplayer.start();
  }
 }

 public void play(){

  string path = "/storage/emulated/0/dcim/camera/20170521_200117.mp4";
  try {
   mmediaplayer.reset();
   mmediaplayer.setaudiostreamtype(audiomanager.stream_music);
   //设置需要播放的视频
   mmediaplayer.setdatasource(this, uri.parse(path));
   //把视频画面输出到surfaceview
   mmediaplayer.setdisplay(msurfaceview.getholder());
   mmediaplayer.prepare();
   mmediaplayer.start();

  } catch (ioexception e) {
   e.printstacktrace();
  }
 }
}

四、 mediaplayer + textureview

<?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:id="@+id/activity_video_play_by_textrue_view"
 android:layout_width="match_parent"
 android:layout_height="match_parent">


 <textureview
  android:id="@+id/texture_view"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>

 <imageview
  android:id="@+id/video_image"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:src="@drawable/all_darkbackground"/>
</relativelayout>

activity

public class videoplaybytextrueviewactivity extends appcompatactivity implements mediaplayer.onpreparedlistener, mediaplayer.oninfolistener, mediaplayer.onbufferingupdatelistener {

 private textureview mtextureview;
 private imageview mimagevideo;
 private surface msurface;
 private mediaplayer mmediaplayer;
 private static string path = "/storage/emulated/0/dcim/camera/20170521_200117.mp4";

 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_video_play_by_textrue_view);

  mtextureview = (textureview) findviewbyid(r.id.texture_view);

  mimagevideo = (imageview) findviewbyid(r.id.video_image);

  init();
 }

 private void init() {

  mtextureview.setsurfacetexturelistener(new textureview.surfacetexturelistener() {
   @override
   public void onsurfacetextureavailable(surfacetexture surfacetexture, int width, int height) {
    msurface = new surface(surfacetexture);

    log.e("tag", "---- onsurfacetextureavailable");

    play();
   }

   @override
   public void onsurfacetexturesizechanged(surfacetexture surface, int width, int height) {
    log.e("tag", "---- onsurfacetexturesizechanged");
   }

   @override
   public boolean onsurfacetexturedestroyed(surfacetexture surface) {
    mtextureview=null;
    msurface=null;
    mmediaplayer.stop();
    mmediaplayer.release();
    return false;
   }

   @override
   public void onsurfacetextureupdated(surfacetexture surface) {

   }
  });


 }



 public void play(){


  mmediaplayer = new mediaplayer();

  try {
   mmediaplayer.setdatasource(getapplicationcontext(), uri.parse(path));
   mmediaplayer.setsurface(msurface);
   mmediaplayer.setaudiostreamtype(audiomanager.stream_music);

   mmediaplayer.setonpreparedlistener(this);
   mmediaplayer.setoninfolistener(this);
   mmediaplayer.setonbufferingupdatelistener(this);

   mmediaplayer.prepareasync();

  } catch (ioexception e) {
   e.printstacktrace();
  }

 }

 @override
 public void onprepared(mediaplayer mp) {

  mimagevideo.setvisibility(view.gone);
  mmediaplayer.start();
 }

 @override
 public boolean oninfo(mediaplayer mp, int what, int extra) {
  return false;
 }

 @override
 public void onbufferingupdate(mediaplayer mp, int percent) {

 }
}

参考文章

android中surfaceview的使用详解

android 5.0(lollipop)中的surfacetexture,textureview, surfaceview和glsurfaceview

android textureview简易教程

总结

以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作能带来一定的帮助,如果有疑问大家可以留言交流,谢谢大家对的支持。