Android 本地视频播放

1.MainActivity.java

import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.util.Log;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;


import java.io.IOException;


public class MainActivity extends Activity {


    static final String TAG = "NativeMedia";


    // member variables for Java media player
    MediaPlayer mMediaPlayer;
    boolean mMediaPlayerIsPrepared = false;
    SurfaceView mSurfaceView1;
    SurfaceHolder mSurfaceHolder1;


    VideoSink mSelectedVideoSink;
    VideoSink mJavaMediaPlayerVideoSink;


    SurfaceHolderVideoSink mSurfaceHolder1VideoSink;


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


        // set up the Surface 1 video sink
        mSurfaceView1 = (SurfaceView) findViewById(R.id.surfaceview1);
        mSurfaceHolder1 = mSurfaceView1.getHolder();


        // create Java media player
        mMediaPlayer = new MediaPlayer();


        if (mSurfaceHolder1VideoSink == null) {
            mSurfaceHolder1VideoSink = new SurfaceHolderVideoSink(mSurfaceHolder1);
        }
        mSelectedVideoSink = mSurfaceHolder1VideoSink;


        // set up Java media player listeners
        mMediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {


            public void onPrepared(MediaPlayer mediaPlayer) {
                int width = mediaPlayer.getVideoWidth();
                int height = mediaPlayer.getVideoHeight();
                Log.v(TAG, "onPrepared width=" + width + ", height=" + height);
                if (width != 0 && height != 0 && mJavaMediaPlayerVideoSink != null) {
                    mJavaMediaPlayerVideoSink.setFixedSize(width, height);
                }
                mMediaPlayerIsPrepared = true;
                mediaPlayer.start();
            }
        });


        mMediaPlayer.setOnVideoSizeChangedListener(new MediaPlayer.OnVideoSizeChangedListener() {


            public void onVideoSizeChanged(MediaPlayer mediaPlayer, int width, int height) {
                Log.v(TAG, "onVideoSizeChanged width=" + width + ", height=" + height);
                if (width != 0 && height != 0 && mJavaMediaPlayerVideoSink != null) {
                    mJavaMediaPlayerVideoSink.setFixedSize(width, height);
                }
            }
        });


        // Java MediaPlayer start/pause
        ((Button) findViewById(R.id.start_java)).setOnClickListener(new View.OnClickListener() {


            public void onClick(View view) {
                if (mJavaMediaPlayerVideoSink == null) {
                    if (mSelectedVideoSink == null) {
                        return;
                    }
                    mSelectedVideoSink.useAsSinkForJava(mMediaPlayer);
                    mJavaMediaPlayerVideoSink = mSelectedVideoSink;
                }
                if (!mMediaPlayerIsPrepared) {
                    try {
                        mMediaPlayer.setDataSource("/sdcard/NativeMedia.ts"); //   视频的地址
                    } catch (IOException e) {
                        Log.e(TAG, "IOException " + e);
                    }
                    mMediaPlayer.prepareAsync();
                } else if (mMediaPlayer.isPlaying()) {
                    mMediaPlayer.pause();
                } else {
                    mMediaPlayer.start();
                }
            }
        });
    }


    // VideoSink abstracts out the difference between Surface and SurfaceTexture
    // aka SurfaceHolder and GLSurfaceView
    static abstract class VideoSink {
        abstract void setFixedSize(int width, int height);
        abstract void useAsSinkForJava(MediaPlayer mediaPlayer);
    }


    static class SurfaceHolderVideoSink extends VideoSink {


        private final SurfaceHolder mSurfaceHolder;


        SurfaceHolderVideoSink(SurfaceHolder surfaceHolder) {


            mSurfaceHolder = surfaceHolder;
        }


        void setFixedSize(int width, int height) {


            mSurfaceHolder.setFixedSize(width, height);
        }


        void useAsSinkForJava(MediaPlayer mediaPlayer) {
            // Use the newer MediaPlayer.setSurface(Surface) since API level 14
            // instead of MediaPlayer.setDisplay(mSurfaceHolder) since API level 1,
            // because setSurface also works with a Surface derived from a SurfaceTexture.
            Surface s = mSurfaceHolder.getSurface();
            mediaPlayer.setSurface(s);
            s.release();
        }
    }
}

2.activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        >
        <Button
            android:id="@+id/start_java"
            android:text="@string/start_java"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            />
    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        >
        <TextView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="S1"
            />
        <SurfaceView
            android:id="@+id/surfaceview1"
            android:layout_width="320px"
            android:layout_height="240px"
            />
    </LinearLayout>

</LinearLayout>