先看看我的效果图吧
Activity类
1 private TextView nameTextView;
2 private SeekBar seekBar;
3 private ListView listView;
4 private List<Map<String, String>> data;
5 private int current;
6 private MediaPlayer player;
7 private Handler handler = new Handler();
8 private Button ppButton;
9 private boolean isPause;
10 private boolean isStartTrackingTouch;
11 protected void onCreate(Bundle savedInstanceState) {
12 super.onCreate(savedInstanceState);
13 setContentView(R.layout.mainb);
14 ib3=(ImageButton) findViewById(R.id.ib3);
15 ib3.setOnClickListener(new OnClickListener() {
16 @Override
17 public void onClick(View v) {
18 Intent it=new Intent(Music_b.this,Music_gc.class);
19 String name=data.get(current).get("name");
20 it.putExtra("name", name);
21 startActivityForResult(it, 1);
22 }
23 });
24 tv=(TextView)findViewById(R.id.tvbb);
25 sp=(Spinner) findViewById(R.id.sp);
26 sp.setOnItemSelectedListener(new OnItemSelectedListener() {
27 @Override
28 public void onItemSelected(AdapterView<?> arg0, View view,
29 int arg2, long arg3) {
30 TextView tv1=(TextView)view;
31 String str=tv1.getText().toString();
32 tv.setText(str);
33 }
34 @Override
35 public void onNothingSelected(AdapterView<?> arg0) {
36 }
37 });
38 sp1=(Spinner) findViewById(R.id.sp1);
39 sp1.setOnItemSelectedListener(new OnItemSelectedListener() {
40
41 @Override
42 public void onItemSelected(AdapterView<?> arg0, View view,
43 int arg2, long arg3) {
44 TextView tv1=(TextView)view;
45 String str=tv1.getText().toString();
46 tv.setText(str);
47 }
48 @Override
49 public void onNothingSelected(AdapterView<?> arg0) {
50
51 }
52 });
53 nameTextView = (TextView) findViewById(R.id.name);
54 seekBar = (SeekBar) findViewById(R.id.seekBar);
55 listView = (ListView) findViewById(R.id.list);
56 ppButton = (Button) findViewById(R.id.pp);
57 //创建一个音乐播放器
58 player = new MediaPlayer();
59 //显示音乐播放器
60 generateListView();
61 //进度条监听器
62 seekBar.setOnSeekBarChangeListener(new MySeekBarListener());
63 //播放器监听器
64 player.setOnCompletionListener(new MyPlayerListener());
65 //意图过滤器
66 IntentFilter filter = new IntentFilter();
67 }
68 private final class MyPlayerListener implements OnCompletionListener {
69 //歌曲播放完后自动播放下一首歌区
70 public void onCompletion(MediaPlayer mp) {
71 next();
72 }
73 }
74 public void next(View view) {
75 next();
76 }
77 public void previous(View view) {
78 previous();
79 }
80 private void previous() {
81 current = current - 1 < 0 ? data.size() - 1 : current - 1;
82 play();
83 }
84 private void next() {
85 current = (current + 1) % data.size();
86 play();
87 }
88 private final class MySeekBarListener implements OnSeekBarChangeListener {
89 //移动触发
90 public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
91 }
92 //起始触发
93 public void onStartTrackingTouch(SeekBar seekBar) {
94 isStartTrackingTouch = true;
95 }
96 //结束触发
97 public void onStopTrackingTouch(SeekBar seekBar) {
98 player.seekTo(seekBar.getProgress());
99 isStartTrackingTouch = false;
100 }
101 }
102 private void generateListView() {
103 List<File> list = new ArrayList<File>();
104 //获取sdcard中的所有歌曲
105 findAll(Environment.getExternalStorageDirectory(), list);
106 //播放列表进行排序，字符顺序
107 Collections.sort(list);
108 data = new ArrayList<Map<String, String>>();
109 for (File file : list) {
110 Map<String, String> map = new HashMap<String, String>();
111 map.put("name", file.getName());
112 map.put("path", file.getAbsolutePath());
113 data.add(map);
114 }
115 SimpleAdapter adapter = new SimpleAdapter(this, data, R.layout.mainmp3_item, new String[] { "name" }, new int[] { R.id.mName });
116 listView.setAdapter(adapter);
117 listView.setOnItemClickListener(new MyItemListener());
118 }
119 private final class MyItemListener implements OnItemClickListener {
120 public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
121 current = position;
122 play();
123 }
124 }
125 private void play() {
126 try {
127 //重播
128 player.reset();
129 //获取歌曲路径
130 player.setDataSource(data.get(current).get("path"));
131 //缓冲
132 player.prepare();
133 //开始播放
134 player.start();
135 //显示歌名
136 nameTextView.setText(data.get(current).get("name"));
137 //设置进度条长度
138 seekBar.setMax(player.getDuration());
139 //播放按钮样式
140 ppButton.setText("||");
141 //发送一个Runnable，handler收到之后就会执行run()方法
142 handler.post(new Runnable() {
143 public void run() {
144 // 更新进度条状态
145 if (!isStartTrackingTouch)
146 seekBar.setProgress(player.getCurrentPosition());
147 // 1秒之后再次发送
148 handler.postDelayed(this, 1000);
149 }
150 });
151 } catch (Exception e) {
152 e.printStackTrace();
153 }
154 }
155 private void findAll(File file, List<File> list) {
156 File[] subFiles = file.listFiles();
157 if (subFiles != null)
158 for (File subFile : subFiles) {
159 if (subFile.isFile() && subFile.getName().endsWith(".mp3"))
160 list.add(subFile);
161 else if (subFile.isDirectory())//如果是目录
162 findAll(subFile, list); //递归
163 }
164 }
165 public void pp(View view) {
166 //默认从第一首歌开始播放
167 if (!player.isPlaying() && !isPause) {
168 play();
169 return;
170 }
171 Button button = (Button) view;
172 //暂停/播放按钮
173 if ("||".equals(button.getText())) {
174 pause();
175 button.setText("|>");
176 }else if("|>".equals(button.getText())) {
177 resume();
178 button.setText("||");
179 }
180 }
181 private void resume() {
182 if (isPause) {
183 player.start();
184 isPause = false;
185 }
186 }
187 private void pause() {
188 if (player != null && player.isPlaying()) {
189 player.pause();
190 isPause = true;
191 }
192 }
193 }
示例代码
xml类
1 <TableLayout 2 android:orientation="vertical" 3 android:layout_width="match_parent" 4 android:layout_height="wrap_content"> 5 <TableRow> 6 <ListView 7 android:id="@+id/list" 8 android:layout_width="wrap_content" 9 android:layout_height="fill_parent" 10 /> 11 </TableRow> 12 </TableLayout> 13 <TextView 14 android:id="@+id/name" 15 android:layout_width="wrap_content" 16 android:layout_height="wrap_content" 17 android:layout_marginTop="50px" 18 /> 19 <RelativeLayout 20 android:layout_width="fill_parent" 21 android:layout_height="wrap_content" 22 > 23 <ImageButton 24 android:id="@+id/ib3" 25 android:layout_width="wrap_content" 26 android:layout_height="wrap_content" 27 android:src="@drawable/b" 28 android:background="#00000000" 29 android:layout_alignParentBottom="true" 30 /> 31 <SeekBar 32 android:id="@+id/seekBar" 33 style="?android:attr/progressBarStyleHorizontal" 34 android:layout_width="fill_parent" 35 android:layout_height="wrap_content" 36 android:paddingLeft="88dip" 37 android:progressDrawable="@drawable/seekbar" 38 android:thumb="@drawable/thumb" 39 android:layout_alignTop="@id/ib3" 40 android:max="100" 41 android:maxHeight="2.0dip" 42 android:minHeight="2.0dip" 43 /> 44 <Button 45 android:id="@+id/bt021" 46 android:layout_width="wrap_content" 47 android:layout_height="wrap_content" 48 android:text="|?" 49 android:onClick="previous" 50 android:layout_toRightOf="@id/ib3" 51 android:background="#00000000" 52 android:layout_marginRight="30px" 53 android:paddingLeft="20dip" 54 android:layout_alignParentBottom="true" 55 /> 56 <Button 57 android:id="@+id/pp" 58 android:layout_width="wrap_content" 59 android:layout_height="wrap_content" 60 android:text="?" 61 android:onClick="pp" 62 android:layout_toRightOf="@id/bt021" 63 android:background="#00000000" 64 android:layout_marginRight="30px" 65 android:layout_alignParentBottom="true" 66 /> 67 <Button 68 android:layout_width="wrap_content" 69 android:layout_height="wrap_content" 70 android:text="?|" 71 android:onClick="next" 72 android:layout_toRightOf="@id/pp" 73 android:background="#00000000" 74 android:layout_marginTop="20dip" 75 android:layout_alignParentBottom="true" 76 /> 77 </RelativeLayout>
示例代码
1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:orientation="horizontal" 4 android:layout_width="fill_parent" 5 android:layout_height="fill_parent" 6 android:background="#FFFFFF" 7 > 8 <TableLayout 9 android:orientation="vertical" 10 android:layout_width="match_parent" 11 android:layout_height="wrap_content"> 12 <TableRow> 13 <TextView 14 android:id="@+id/textview" 15 android:layout_width="fill_parent" 16 android:layout_height="wrap_content" 17 /> 18 </TableRow> 19 </TableLayout> 20 21 </LinearLayout>
第二个xml
时间： 2024-10-22 23:52:19