Android Open Source - NPlayer Playing Utils

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License

The source code is released under:
Apache License
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Java Source Code

package com.qinxiandiqi.utils;
//  w  w w . j a  v  a 2  s .  c om
import java.io.File;
import java.io.IOException;

import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.widget.Toast;
import android.widget.VideoView;

import com.qinxiandiqi.nplayer.R;
import com.qinxiandiqi.nplayer.VideoActivity;

public class PlayingUtils {

//  ???????
  public static final void delMusicItem(Context context) {
    if(CodeUtils.playingMusic == CodeUtils.NOTNEXTONE){
      Toast.makeText(context, R.string.delfail, Toast.LENGTH_SHORT).show();
      return;
    }
    CodeUtils.musicFileList.remove(CodeUtils.playingMusic);
    CodeUtils.musicListLength = CodeUtils.musicFileList.size();
    CodeUtils.hadLoadMusic = false;
    if(CodeUtils.musicListLength == 0){
      CodeUtils.playingMusic = CodeUtils.NOTNEXTONE;
      CodeUtils.forwardMusic = CodeUtils.NOTNEXTONE;
    }else if(CodeUtils.musicListLength == CodeUtils.playingMusic){
      CodeUtils.playingMusic--;
      CodeUtils.forwardMusic--;
    }else if(CodeUtils.playingMusic < CodeUtils.forwardMusic){
      CodeUtils.forwardMusic--;
    }
    CodeUtils.musicAdapter.notifyDataSetChanged();
    Toast.makeText(context, R.string.delsuccess, Toast.LENGTH_SHORT).show();
  }

//  ???????
  public static final void delVideoItem(Context context) {
    if(CodeUtils.playingVideo == CodeUtils.NOTNEXTONE){
      Toast.makeText(context, R.string.delfail, Toast.LENGTH_SHORT).show();
      return;
    }
    CodeUtils.videoFileList.remove(CodeUtils.playingVideo);
    CodeUtils.videoListLength = CodeUtils.videoFileList.size();
    if(CodeUtils.videoListLength == 0){
      CodeUtils.playingVideo = CodeUtils.NOTNEXTONE;
      CodeUtils.hadLoadMusic = false;
    }else if(CodeUtils.videoListLength == CodeUtils.playingVideo){
      CodeUtils.playingVideo--;
    }
    CodeUtils.videoAdapter.notifyDataSetChanged();
    Toast.makeText(context, R.string.delsuccess, Toast.LENGTH_SHORT).show();
  }

  public static final void startVideoActivity(Context context, Intent intent) {
    intent.putExtra(CodeUtils.MEDIAOPCODE, CodeUtils.PAUSE);
    context.sendBroadcast(intent);
    context.startActivity(new Intent(context, VideoActivity.class));
  }

//  ?????????????
  public static final void startVideoPlaying(Context context,
      VideoView videoView) {
    if (CodeUtils.playingVideo != CodeUtils.NOTNEXTONE) {
      String path = CodeUtils.videoFileList.get(CodeUtils.playingVideo)
          .getMediaPath();
      File file = new File(path);
      if (file.exists() && file.isFile()) {
        videoView.setVideoPath(path);
        videoView.requestFocus();
        CodeUtils.videoFileList.get(CodeUtils.playingVideo)
            .setMediaLength(videoView.getDuration());
        videoView.seekTo(CodeUtils.videoFileList.get(
            CodeUtils.playingVideo).getLastTime());
        videoView.start();
      } else {
        CodeUtils.videoFileList.remove(CodeUtils.playingVideo);
        CodeUtils.videoListLength = CodeUtils.videoFileList.size();
        Toast.makeText(context, R.string.palyfail, Toast.LENGTH_SHORT)
            .show();
        if(CodeUtils.videoListLength == 0){
          CodeUtils.playingVideo = CodeUtils.NOTNEXTONE;
          return;
        }
        if(CodeUtils.videoListLength == CodeUtils.playingVideo){
          CodeUtils.playingVideo--;
        }
        PlayingUtils.startVideoPlaying(context, videoView);
      }
    }
  }

  public static final void startMusicPlaying(Context context, MediaPlayer mediaPlayer, Intent intent){
    if(CodeUtils.playingMusic != CodeUtils.NOTNEXTONE){
      File file = new File(CodeUtils.musicFileList.get(CodeUtils.playingMusic).getMediaPath());
      if(file.exists()&&file.isFile()){
        mediaPlayer.reset();
        try {
          mediaPlayer.setDataSource(CodeUtils.musicFileList.get(CodeUtils.playingMusic).getMediaPath());
          mediaPlayer.prepare();
          CodeUtils.hadLoadMusic = true;
          CodeUtils.musicFileList.get(CodeUtils.playingMusic).setMediaLength(mediaPlayer.getDuration());
          mediaPlayer.seekTo(CodeUtils.musicFileList.get(CodeUtils.playingMusic).getLastTime());
          mediaPlayer.start();
          CodeUtils.playingMusicState = CodeUtils.PLAYING;
          intent.putExtra(CodeUtils.MEDIAOPCODE, CodeUtils.PLAYING);
          context.sendBroadcast(intent);
          CodeUtils.musicAdapter.notifyDataSetChanged();
        } catch (IllegalArgumentException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        } catch (IllegalStateException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        } catch (IOException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }catch (Exception e){
          Toast.makeText(context, R.string.setdatafail, Toast.LENGTH_SHORT).show();
          e.printStackTrace();
        }
      }else{
        CodeUtils.musicFileList.remove(CodeUtils.playingMusic);
        CodeUtils.musicListLength = CodeUtils.musicFileList.size();
        Toast.makeText(context, R.string.palyfail, Toast.LENGTH_SHORT)
            .show();
        if(CodeUtils.musicListLength == 0){
          CodeUtils.playingMusic = CodeUtils.NOTNEXTONE;
          CodeUtils.hadLoadMusic = false;
          return;
        }
        if(CodeUtils.musicListLength == CodeUtils.playingVideo){
          CodeUtils.playingMusic--;
        }
        PlayingUtils.startMusicPlaying(context, mediaPlayer, intent);
      }
    }
  }
  
//  ?????????
  public static final void stopMusic(Context context, MediaPlayer mediaPlayer, Intent intent){
    if (CodeUtils.hadLoadMusic) {
      if (mediaPlayer.isPlaying()) {
        mediaPlayer.pause();
      }
      mediaPlayer.seekTo(0);
      CodeUtils.musicFileList.get(CodeUtils.playingMusic).setLastTime(mediaPlayer.getCurrentPosition());
      CodeUtils.playingMusicState = CodeUtils.STOP;
      intent.putExtra(CodeUtils.MEDIAOPCODE, CodeUtils.STOP);
      context.sendBroadcast(intent);
      CodeUtils.musicAdapter.notifyDataSetChanged();
    }
  }
  
//  ????????
  public static final void startNextMusic(Context context, MediaPlayer mediaPlayer, Intent intent){
    CodeUtils.forwardMusic = CodeUtils.playingMusic;
    int next = PlayingUtils.nextOneId(CodeUtils.playingMusicModel, CodeUtils.musicListLength, CodeUtils.playingMusic);
    if(next != CodeUtils.NOTNEXTONE){
      if(CodeUtils.hadLoadMusic){
        CodeUtils.musicFileList.get(CodeUtils.playingMusic).setLastTime(mediaPlayer.getCurrentPosition());
      }
      CodeUtils.playingMusic = next;
      PlayingUtils.startMusicPlaying(context, mediaPlayer, intent);
    }else{
      PlayingUtils.stopMusic(context, mediaPlayer, intent);
    }
  }
  
//  ???????????????????id
  public static final int nextOneId(int model, int length, int nowPoint) {
    if (length == 0) {
      return CodeUtils.NOTNEXTONE;
    }
    switch (model) {
    case CodeUtils.LISTLOOP:
      nowPoint++;
      if (nowPoint == length) {
        return 0;
      } else {
        return nowPoint;
      }
    case CodeUtils.RANDOM:
      return (int) (Math.random() * (length - 1));
    case CodeUtils.ORDERPLAY:
      nowPoint++;
      if (nowPoint == length) {
        return CodeUtils.NOTNEXTONE;
      } else {
        return nowPoint;
      }
    case CodeUtils.SINGLECYCLE:
      return nowPoint;
    case CodeUtils.SINGLEPLAY:
      return CodeUtils.NOTNEXTONE;
    default:
      return CodeUtils.NOTNEXTONE;
    }
  }
  
//  ??????????????ID
  public static int getModelIconID(int model){
    switch (model) {
    case CodeUtils.LISTLOOP:
      return R.drawable.listloop;
    case CodeUtils.RANDOM:
      return R.drawable.random;
    case CodeUtils.SINGLECYCLE:
      return R.drawable.singlecycle;
    case CodeUtils.SINGLEPLAY:
      return R.drawable.singleplay;
    case CodeUtils.ORDERPLAY:
      return R.drawable.orderplay;
    default:
      return R.drawable.listloop;
    }
  }
  
//  ????????????????ID
  public static int getModelStringID(int model){
    switch (model) {
    case CodeUtils.LISTLOOP:
      return R.string.listloop;
    case CodeUtils.SINGLECYCLE:
      return R.string.singlecycle;
    case CodeUtils.SINGLEPLAY:
      return R.string.singleplay;
    case CodeUtils.ORDERPLAY:
      return R.string.orderplay;
    case CodeUtils.RANDOM:
      return R.string.ramdom;
    default:
      return R.string.listloop;
    }
  }
}
Java Source Code List
