Android：一步一步实现音乐播放器

 

public class MainActivity extends TabActivity {       /** Called when the activity is first created. */       @Override       public void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);           requestWindowFeature(Window.FEATURE_NO_TITLE);           this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,                    WindowManager.LayoutParams.FLAG_FULLSCREEN);           setContentView(R.layout.main);                      Resources res = getResources();            TabHost tabHost = getTabHost();            TabHost.TabSpec spec;            Intent intent;             intent = new Intent().setClass(this, ListActivity.class);           spec = tabHost.newTabSpec("音乐").setIndicator("音乐",                             res.getDrawable(R.drawable.item))                         .setContent(intent);           tabHost.addTab(spec);                      intent = new Intent().setClass(this, ArtistsActivity.class);           spec = tabHost.newTabSpec("艺术家").setIndicator("艺术家",                             res.getDrawable(R.drawable.artist))                         .setContent(intent);           tabHost.addTab(spec);              intent = new Intent().setClass(this, AlbumsActivity.class);           spec = tabHost.newTabSpec("专辑").setIndicator("专辑",                             res.getDrawable(R.drawable.album))                         .setContent(intent);           tabHost.addTab(spec);           intent = new Intent().setClass(this, SongsActivity.class);           spec = tabHost.newTabSpec("最近播放").setIndicator("最近播放",                             res.getDrawable(R.drawable.album))                         .setContent(intent);           tabHost.addTab(spec);                         tabHost.setCurrentTab(0);          }   }