音,视频播放资源
资源:
Android MediaPlayer的生命周期
http://syab11.iteye.com/blog/761660
Android提高第二十一篇之MediaPlayer播放网络视频
http://blog.csdn.net/hellogv/article/details/6429455
一定要先弄明白状态图:
http://book.51cto.com/art/200912/173820.htm
我说怎么总是感觉isPlaying()不太准确......晕
/** * 音频播放器 * @author kay */public class PlayActivity extends Activity {private static final String TAG = "PlayActivity"; private EditText filenameText; private MediaPlayer mediaPlayer; private String filename; private int position; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); filenameText = (EditText)this.findViewById(R.id.filename); //对mediaPlayer进行实例化 mediaPlayer = new MediaPlayer(); ButtonClickListener listener = new ButtonClickListener(); //获取4个按钮 Button playButton = (Button)this.findViewById(R.id.play); Button pauseButton = (Button)this.findViewById(R.id.pause); Button resetButton = (Button)this.findViewById(R.id.reset); Button stopButton = (Button) this.findViewById(R.id.stop); //设置4个按钮的监听 playButton.setOnClickListener(listener); pauseButton.setOnClickListener(listener); resetButton.setOnClickListener(listener); stopButton.setOnClickListener(listener); Log.i(TAG, "onCreate()"); } @Overrideprotected void onRestoreInstanceState(Bundle savedInstanceState) {this.filename = savedInstanceState.getString("filename");this.position = savedInstanceState.getInt("position");super.onRestoreInstanceState(savedInstanceState);Log.i(TAG, "onRestoreInstanceState()");}@Overrideprotected void onSaveInstanceState(Bundle outState) {outState.putString("filename", filename);outState.putInt("position", position);super.onSaveInstanceState(outState);Log.i(TAG, "onSaveInstanceState()");}private void play() throws IOException {//获取文件路径File audioFile = new File(Environment.getExternalStorageDirectory(),filename);mediaPlayer.reset();mediaPlayer.setDataSource(audioFile.getAbsolutePath());mediaPlayer.prepare();mediaPlayer.start();}//如果突然电话到来，停止播放音乐@Overrideprotected void onPause() {if(mediaPlayer.isPlaying()){//保存当前播放点position = mediaPlayer.getCurrentPosition();mediaPlayer.stop();}super.onPause();}//@Overrideprotected void onResume() {//如果电话结束，继续播放音乐if(position>0 && filename!=null){try {play();mediaPlayer.seekTo(position);position = 0;}catch (IOException e){Log.e(TAG, e.toString());}}super.onResume();}//对mediaPlayer进行摧毁@Overrideprotected void onDestroy() { mediaPlayer.release(); super.onDestroy();Log.i(TAG, "onDestroy()");}private final class ButtonClickListener implements View.OnClickListener{@Overridepublic void onClick(View v) {//先得到文本框中的内容filename = filenameText.getText().toString();//得到buttonButton button = (Button) v; try {//通过传过来的Buttonid可以判断Button的类型switch (v.getId()) {case R.id.play:play();break;case R.id.pause:if(mediaPlayer.isPlaying()){mediaPlayer.pause();button.setText(R.string.continue1);//让这个按钮上的文字显示为继续}else{mediaPlayer.start();//继续播放button.setText(R.string.pause);}break;case R.id.reset:if(mediaPlayer.isPlaying()){mediaPlayer.seekTo(0);//让它从0开始播放}else{play();//如果它没有播放，就让它开始播放}break;case R.id.stop://如果它正在播放的话，就让他停止if(mediaPlayer.isPlaying()) mediaPlayer.stop();break;}} catch (Exception e){Log.e(TAG, e.toString());}} }}
其他资源:
1.http://blog.csdn.net/Android_Tutor/article/details/5743183
2.http://blog.csdn.net/Android_Tutor/article/details/5058217
