【Android】播放视频的简易播放器源码

一，MainActivity.java源码

import android.app.Activity;
import android.graphics.PixelFormat;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;

public class EX07_14 extends Activity
implements SurfaceHolder.Callback
{
private TextView mTextView01;
private static final String TAG = "HIPPO_MediaPlayer"; //打印日志的标志

private MediaPlayer mMediaPlayer01;

private SurfaceView mSurfaceView01;

private SurfaceHolder mSurfaceHolder01;

private ImageButton mPlay;
private ImageButton mPause;
private ImageButton mReset;
private ImageButton mStop;

private boolean bIsPaused = false;
private boolean bIsReleased = false;
private String strVideoPath = "";

@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

if(!checkSDCard()) //如果没有SD卡
{

mMakeTextToast
(
getResources().getText(R.string.str_err_nosd).toString(),
true
);
}

mTextView01 = (TextView)findViewById(R.id.myTextView1);

getWindow().setFormat(PixelFormat.UNKNOWN);

mSurfaceView01 = (SurfaceView) findViewById(R.id.mSurfaceView1); //显示动画用的容器

mSurfaceHolder01 = mSurfaceView01.getHolder();
mSurfaceHolder01.addCallback(this);
mSurfaceHolder01.setFixedSize(176,144);
mSurfaceHolder01.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

mPlay = (ImageButton) findViewById(R.id.play);
mPause = (ImageButton) findViewById(R.id.pause);
mReset = (ImageButton) findViewById(R.id.reset);
mStop = (ImageButton) findViewById(R.id.stop);

strVideoPath = "/sdcard/a.3gp";

mPlay.setOnClickListener(new ImageButton.OnClickListener()
{
public void onClick(View view)
{

if(checkSDCard())
{
playVideo(strVideoPath);
}
}
});

mPause.setOnClickListener(new ImageButton.OnClickListener()
{
public void onClick(View view)
{
if(checkSDCard())
{
if (mMediaPlayer01 != null)
{
if(bIsReleased == false)
{
if(bIsPaused==false)
{
mMediaPlayer01.pause();
bIsPaused = true;
mTextView01.setText(R.string.str_pause);
}
else if(bIsPaused==true)
{
mMediaPlayer01.start();
bIsPaused = false;
mTextView01.setText(R.string.str_play);
}
}
}
}
}
});

mReset.setOnClickListener(new ImageButton.OnClickListener()
{
public void onClick(View view)
{
if(checkSDCard())
{
if(bIsReleased == false)
{
if (mMediaPlayer01 != null)
{
mMediaPlayer01.seekTo(0);
}
}
}
}
});

mStop.setOnClickListener(new ImageButton.OnClickListener()
{
public void onClick(View view)
{
if(checkSDCard())
{
if (mMediaPlayer01 != null)
{
if(bIsReleased==false)
{
mMediaPlayer01.stop();
mMediaPlayer01.release();
bIsReleased = true;
mTextView01.setText(R.string.str_stop);
}
}
}
}
});
}

private void playVideo(String strPath)
{
mMediaPlayer01 = new MediaPlayer();
mMediaPlayer01.setAudioStreamType(AudioManager.STREAM_MUSIC);

mMediaPlayer01.setDisplay(mSurfaceHolder01);

try
{
mMediaPlayer01.setDataSource(strPath);
}
catch (Exception e)
{
// TODO Auto-generated catch block
mTextView01.setText("setDataSource Exceeption:"+e.toString());
}

try
{
mMediaPlayer01.prepare();
}
catch (Exception e)
{
// TODO Auto-generated catch block
mTextView01.setText("prepare Exceeption:"+e.toString());
}
mMediaPlayer01.start();
bIsReleased = false;
mTextView01.setText(R.string.str_play);

mMediaPlayer01.setOnCompletionListener
(new MediaPlayer.OnCompletionListener()
{
@Override
public void onCompletion(MediaPlayer arg0)
{
// TODO Auto-generated method stub
mTextView01.setText(R.string.str_stop);
}
});
}

private boolean checkSDCard()
{
if(android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED))
{
return true;
}
else
{
return false;
}
}

public void mMakeTextToast(String str, boolean isLong)
{
if(isLong==true)
{
Toast.makeText(EX07_14.this, str, Toast.LENGTH_LONG).show();
}
else
{
Toast.makeText(EX07_14.this, str, Toast.LENGTH_SHORT).show();
}
}

@Override
public void surfaceChanged
(SurfaceHolder surfaceholder, int format, int w, int h)
{
// TODO Auto-generated method stub
Log.i(TAG, "Surface Changed");
}

@Override
public void surfaceCreated(SurfaceHolder surfaceholder)
{
// TODO Auto-generated method stub
Log.i(TAG, "Surface Changed");
}

@Override
public void surfaceDestroyed(SurfaceHolder surfaceholder)
{
// TODO Auto-generated method stub
Log.i(TAG, "Surface Destroyed");
}
}


二，main.xml 源码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:background="@drawable/white"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="@+id/myTextView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textColor="@drawable/blue"
android:text="@string/hello"
/>
<SurfaceView
android:id="@+id/mSurfaceView1"
android:layout_width="100px"
android:layout_height="100px">
</SurfaceView>

<SeekBar android:id="@+id/seekBar" android:layout_height="wrap_content" android:layout_width="fill_parent" />

<LinearLayout
android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:padding="10dip"
>
<ImageButton android:id="@+id/play"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:src="@drawable/play"
/>
<ImageButton android:id="@+id/pause"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:src="@drawable/pause"
/>
<ImageButton android:id="@+id/reset"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:src="@drawable/reset"
/>
<ImageButton android:id="@+id/stop"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:src="@drawable/stop"
/>
</LinearLayout>
</LinearLayout>


三，源码中所需其余图片等 ，自备就可以。经测试通过可以播放，前提需要sdcard中已经传入播放文件