自定义Android中TabHost组件显示在屏幕底部 并实现滑动切换

package com.laili.mytabhost; import android.app.Activity; import android.content.res.Configuration; import android.os.Bundle; import android.util.Log; import android.view.GestureDetector; import android.view.GestureDetector.SimpleOnGestureListener; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.view.animation.LayoutAnimationController; import android.widget.Button; import android.widget.ImageView; import android.widget.TabHost; import android.widget.TextView; public class TestTabHostActivity extends Activity implements OnClickListener { private TabHost tabHost; private Button nextBtn_1; private Button nextBtn_2; private Button nextBtn_3; 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; int currentView = 0; private static int maxTabIndex = 3; private GestureDetector gestureDetector; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); initView(); } private void initView() { tabHost=(TabHost)findViewById(R.id.TabHost01); tabHost.setup(); tabHost.addTab(tabHost.newTabSpec("tab1").setContent(R.id.LinearLayout1) .setIndicator(getTabView(R.drawable.ic_launcher,"会话",R.layout.tab_view))); tabHost.addTab(tabHost.newTabSpec("tab2").setContent(R.id.LinearLayout2) .setIndicator(getTabView(R.drawable.ic_launcher, "好友", R.layout.tab_view))); tabHost.addTab(tabHost.newTabSpec("tab3").setContent(R.id.LinearLayout3) .setIndicator(getTabView(R.drawable.ic_launcher, "名片", R.layout.tab_view))); tabHost.addTab(tabHost.newTabSpec("tab4").setContent(R.id.LinearLayout4) .setIndicator(getTabView(R.drawable.ic_launcher, "更多", R.layout.tab_view))); tabHost.setCurrentTab(1); tabHost.setSelected(false); nextBtn_1 = (Button) findViewById(R.id.jump2next_btn_1); nextBtn_2 = (Button) findViewById(R.id.jump2next_btn_2); nextBtn_3 = (Button) findViewById(R.id.jump2next_btn_3); nextBtn_1.setOnClickListener(this); nextBtn_2.setOnClickListener(this); nextBtn_3.setOnClickListener(this); gestureDetector = new GestureDetector(new MyGestureListener()); } @Override public boolean dispatchTouchEvent(MotionEvent ev) { gestureDetector.onTouchEvent(ev); return super.dispatchTouchEvent(ev); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); if(newConfig.orientation==Configuration.ORIENTATION_LANDSCAPE){ setContentView(R.layout.main); System.out.println("land"); } if(newConfig.orientation==Configuration.ORIENTATION_PORTRAIT){ setContentView(R.layout.main); System.out.println("port"); } } /** * 获得TabHost上填充tab的View * @param icon * @param label * @param viewId * @return */ private View getTabView(int icon, String label, int viewId) { View localView = LayoutInflater.from(this).inflate(viewId, null); ImageView iconView = (ImageView) localView.findViewById(R.id.icon); TextView labelView = (TextView) localView.findViewById(R.id.label); iconView.setBackgroundResource(icon); labelView.setText(label); return localView; } @Override public void onClick(View v) { System.out.println(tabHost.getChildCount()); if (tabHost.getCurrentTab() == maxTabIndex) { tabHost.setCurrentTab(0); } else { tabHost.setCurrentTab(tabHost.getCurrentTab() + 1); } } private class MyGestureListener extends SimpleOnGestureListener { @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 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) { e.printStackTrace(); } return false; } } // MyGestureListener }