TabHost + ViewFlipper实现滑动翻页、切换tab动画效果

package com.neusoft.daiyy; import com.neusoft.daiyy.R; import android.app.TabActivity; import android.graphics.Color; import android.os.Bundle; import android.util.Log; import android.view.GestureDetector; import android.view.GestureDetector.OnGestureListener; import android.view.LayoutInflater; import android.view.Menu; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.TabHost; import android.widget.TabHost.OnTabChangeListener; import android.widget.ViewFlipper; public class MyTab extends TabActivity implements OnTabChangeListener, OnTouchListener, OnGestureListener { private TabHost myTabhost; protected int myMenuSettingTag = 0; protected Menu myMenu; private int tabSize = 0; private int oldTabId = -1; // 翻页使用 private ViewFlipper mFlipper; GestureDetector mGestureDetector; private static final int FLING_MIN_DISTANCE = 100; private static final int FLING_MIN_VELOCITY = 50; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); myTabhost = this.getTabHost(); // get Tabhost LayoutInflater.from(this).inflate(R.layout.main, myTabhost.getTabContentView(), true); myTabhost.setBackgroundColor(Color.argb(150, 22, 70, 150)); myTabhost.addTab(myTabhost.newTabSpec("One").setIndicator("A", getResources().getDrawable(R.drawable.conf_artists)).setContent(R.id.widget_layout_Blue)); tabSize++; myTabhost.addTab(myTabhost.newTabSpec("Two").setIndicator("B", getResources().getDrawable(R.drawable.conf_folder)).setContent(R.id.widget_layout_green)); tabSize++; myTabhost.addTab(myTabhost.newTabSpec("Thr").setIndicator("C", getResources().getDrawable(R.drawable.conf_person)).setContent(R.id.widget_layout_red)); tabSize++; mFlipper = (ViewFlipper) findViewById(R.id.flipper); // 注册一个用于手势识别的类 mGestureDetector = new GestureDetector(this); // 给mFlipper设置一个listener mFlipper.setOnTouchListener(this); // 允许长按住ViewFlipper,这样才能识别拖动等手势 mFlipper.setLongClickable(true); } public void animateChangeTab(int index) { Animation slideLeftIn = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.slide_left_in); Animation slideLeftOut = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.slide_left_out); Animation slideRightIn = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.slide_right_in); Animation slideRightOut = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.slide_right_out); Log.v("newIndex", index + ""); Log.v("oldTabId", oldTabId + ""); // 定义退出效果 if (index > oldTabId) { if (tabSize - 1 == index && oldTabId == 0) { myTabhost.getCurrentView().startAnimation(slideRightOut); } else { myTabhost.getCurrentView().startAnimation(slideLeftOut); } } else if (index < oldTabId) { if (0 == index && oldTabId == tabSize - 1) { myTabhost.getCurrentView().startAnimation(slideLeftOut); } else { myTabhost.getCurrentView().startAnimation(slideRightOut); } } myTabhost.setCurrentTab(index); // 定义进入效果 int curTabId = myTabhost.getCurrentTab(); if (curTabId > oldTabId) { if (tabSize - 1 == curTabId && oldTabId == 0) { myTabhost.getCurrentView().startAnimation(slideRightIn); } else { myTabhost.getCurrentView().startAnimation(slideLeftIn); } } else if (curTabId < oldTabId) { if (0 == curTabId && oldTabId == tabSize - 1) { myTabhost.getCurrentView().startAnimation(slideLeftIn); } else { myTabhost.getCurrentView().startAnimation(slideRightIn); } } Log.v("curTabId", curTabId + ""); Log.v("oldTabId", oldTabId + ""); this.oldTabId = myTabhost.getCurrentTab(); } public boolean onDown(MotionEvent e) { // TODO Auto-generated method stub return false; } /** * 用户按下触摸屏、快速移动后松开即触发这个事件 e1：第1个ACTION_DOWN MotionEvent e2：最后一个ACTION_MOVE * MotionEvent velocityX：X轴上的移动速度，像素/秒 velocityY：Y轴上的移动速度，像素/秒 触发条件 ： * X轴的坐标位移大于FLING_MIN_DISTANCE，且移动速度大于FLING_MIN_VELOCITY个像素/秒 */ public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { if (e1.getX() - e2.getX() > FLING_MIN_DISTANCE && Math.abs(velocityX) > FLING_MIN_VELOCITY) { myMenuSettingTag++; while (myMenuSettingTag > tabSize - 1) { myMenuSettingTag = myMenuSettingTag - tabSize; } animateChangeTab(myMenuSettingTag); } else if (e2.getX() - e1.getX() > FLING_MIN_DISTANCE && Math.abs(velocityX) > FLING_MIN_VELOCITY) { myMenuSettingTag--; while (myMenuSettingTag < 0) { myMenuSettingTag = myMenuSettingTag + tabSize; } animateChangeTab(myMenuSettingTag); } return false; } public void onLongPress(MotionEvent e) { // TODO Auto-generated method stub } public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { return false; } public void onShowPress(MotionEvent e) { // TODO Auto-generated method stub } public boolean onSingleTapUp(MotionEvent e) { // TODO Auto-generated method stub return false; } public boolean onTouch(View v, MotionEvent event) { // 一定要将触屏事件交给手势识别类去处理（自己处理会很麻烦的） return mGestureDetector.onTouchEvent(event); } public void onTabChanged(String tabId) { // TODO Auto-generated method stub } }