public class MainActivity extends TabActivity {private SlideMenu slideMenu;private TabHost tabHost;private LayoutInflater inflater;private Intent intent1, intent2, intent3, intent4, intent5, intent6;private long exitTime = 0;private static final int SWIPE_MIN_DISTANCE = 120;  private static final int SWIPE_MAX_OFF_PATH = 250;  private static final int SWIPE_THRESHOLD_VELOCITY = 200;  private GestureDetector gestureDetector;  View.OnTouchListener gestureListener;  int currentView = 0;  private static int maxTabIndex = 5;  @Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {if (keyCode == KeyEvent.KEYCODE_BACK&& event.getAction() == KeyEvent.ACTION_DOWN) {if ((System.currentTimeMillis() - exitTime) > 2000) {Toast.makeText(MainActivity.this, "再按一次退出程序",Toast.LENGTH_SHORT).show();exitTime = System.currentTimeMillis();} else {finish();System.exit(0);}return true;}return super.onKeyDown(keyCode, event);}@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);gestureDetector = new GestureDetector(new MyGestureDetector());  gestureListener = new View.OnTouchListener() {  public boolean onTouch(View v, MotionEvent event) {  if (gestureDetector.onTouchEvent(event)) {  return true;  }  return false;  }  };  // 抽屉效果slideMenu = (SlideMenu) findViewById(R.id.slide_menu);ImageView menuImg = (ImageView) findViewById(R.id.slide_firstmenu);menuImg.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubif (slideMenu.isMainScreenShowing()) {slideMenu.openMenu();} else {slideMenu.closeMenu();}}});intent1 = new Intent(MainActivity.this, FirstActivity.class);intent2 = new Intent(MainActivity.this, SecondActivity.class);intent3 = new Intent(MainActivity.this, SecondActivity.class);intent4 = new Intent(MainActivity.this, SecondActivity.class);intent5 = new Intent(MainActivity.this, SecondActivity.class);intent6 = new Intent(MainActivity.this, MoreInformationActivity.class);LayoutInflater inflater = LayoutInflater.from(MainActivity.this);View view1 = inflater.inflate(R.layout.tabitem_1, null);View view2 = inflater.inflate(R.layout.tabitem_2, null);View view3 = inflater.inflate(R.layout.tabitem_3, null);View view4 = inflater.inflate(R.layout.tabitem_4, null);View view5 = inflater.inflate(R.layout.tabitem_5, null);View view6 = inflater.inflate(R.layout.tabitem_6, null);// 创建TabHost// tabHost = (TabHost) findViewById(R.id.tabHost);// tabHost.setup();tabHost = getTabHost();TabSpec tabSpec1 = tabHost.newTabSpec("tab1").setIndicator(view1).setContent(intent1);tabHost.addTab(tabSpec1);TabSpec tabSpec2 = tabHost.newTabSpec("tab2").setIndicator(view2).setContent(intent2);tabHost.addTab(tabSpec2);TabSpec tabSpec3 = tabHost.newTabSpec("tab3").setIndicator(view3).setContent(intent3);tabHost.addTab(tabSpec3);TabSpec tabSpec4 = tabHost.newTabSpec("tab4").setIndicator(view4).setContent(intent4);tabHost.addTab(tabSpec4);TabSpec tabSpec5 = tabHost.newTabSpec("tab5").setIndicator(view5).setContent(intent5);tabHost.addTab(tabSpec5);TabSpec tabSpec6 = tabHost.newTabSpec("tab6").setIndicator(view6).setContent(intent6);tabHost.addTab(tabSpec6);Button imageButton1 = (Button) findViewById(R.id.imageButton1);imageButton1.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stub// Toast.makeText(MainActivity.this, "123", Toast.LENGTH_SHORT)// .show();Intent newIntent = new Intent(MainActivity.this,LocalActivity.class);startActivity(newIntent);}});ImageView slide_menu_history = (ImageView) findViewById(R.id.slide_menu_history);slide_menu_history.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubIntent newIntent = new Intent(MainActivity.this,HistoryActivity.class);startActivity(newIntent);}});ImageView slide_menu_search = (ImageView) findViewById(R.id.slide_menu_search);slide_menu_search.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubIntent newIntent = new Intent(MainActivity.this,SearchActivity.class);startActivity(newIntent);}});}// 左右滑动刚好页面也有滑动效果  class MyGestureDetector extends SimpleOnGestureListener {  @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,  float velocityY) {  TabHost tabHost = getTabHost();  System.out.println("************");  try {  if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH)  return false;  // right to left swipe  if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE  && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {  Log.i("test", "right");  if (currentView == maxTabIndex) {  currentView = 0;  } else {  currentView++;  }  tabHost.setCurrentTab(currentView);  } else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE  && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {  Log.i("test", "left");  if (currentView == 0) {  currentView = maxTabIndex;  } else {  currentView--;  }  tabHost.setCurrentTab(currentView);  }  } catch (Exception e) {  }  return false;  }  }  @Override public boolean dispatchTouchEvent(MotionEvent event) {  if (gestureDetector.onTouchEvent(event)) {  event.setAction(MotionEvent.ACTION_CANCEL);  }  return super.dispatchTouchEvent(event);  }  @Overridepublic boolean onTouchEvent(MotionEvent event) {// TODO Auto-generated method stubreturn gestureDetector.onTouchEvent(event);}
//    @Override
//    public boolean onCreateOptionsMenu(Menu menu) {
//        getMenuInflater().inflate(R.menu.activity_main, menu);
//        return true;
//    }  }