AnimationHost移动页签

package com.ctmytesttabanimation;

import android.content.Context;
import android.util.AttributeSet;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.TabHost;

/** 继承 TabHost 组件，带有切入切出的滑动动画效果。 */
public class AnimationTabHost extends TabHost{


    private Animation slideLeftIn;// 从屏幕左边进来
    private Animation slideLeftOut;// 从屏幕左边出去
    private Animation slideRightIn;// 从屏幕右边进来
    private Animation slideRightOut;// 从屏幕右边出去

    /** 记录是否打开动画效果 */
    private boolean isOpenAnimation;
    /** 记录当前标签页的总数 */
    private int mTabCount;

    public AnimationTabHost(Context context, AttributeSet attrs) {
        super(context, attrs);
        /** 初始化默认动画 */
        slideLeftIn = AnimationUtils.loadAnimation(context,
                R.anim.slide_left_in);
        slideLeftOut = AnimationUtils.loadAnimation(context,
                R.anim.slide_left_out);
        slideRightIn = AnimationUtils.loadAnimation(context,
                R.anim.slide_right_in);
        slideRightOut = AnimationUtils.loadAnimation(context,
                R.anim.slide_right_out);
        isOpenAnimation = false;// 动画默认关闭

    }

    /**
     * 设置是否打开动画效果
     * 
     * @param isOpenAnimation
     *            true：打开
     */
    public void setOpenAnimation(boolean isOpenAnimation) {
        this.isOpenAnimation = isOpenAnimation;
    }

    /**
     * 返回当前标签页的总数
     */

    public int getTabCount() {
        return mTabCount;
    }

    @Override
    public void addTab(TabSpec tabSpec) {
        mTabCount++;
        super.addTab(tabSpec);
    }

    // 重写setCurrentTab(int index) 方法，这里加入动画！关键点就在这。
    @Override
    public void setCurrentTab(int index) {
        // 切换前所在页的页面
        int mCurrentTabID = getCurrentTab();
        if (null != getCurrentView()) {
            // 第一次设置 Tab 时，该值为 null。
            if (isOpenAnimation) {
                // 离开的页面
                // 切换到右边的界面，从左边离开
                if (index > mCurrentTabID) {
                    getCurrentView().startAnimation(slideLeftOut);
                }
                // 切换到左边的界面，从右边离开
                else if (index < mCurrentTabID) {
                    getCurrentView().startAnimation(slideRightOut);
                }
            }
        }
        // 设置当前页
        super.setCurrentTab(index);

        if (isOpenAnimation) {
            // 当前页进来是动画
            // 切换到右边的界面，从右边进来
            if (index > mCurrentTabID) {
                getCurrentView().startAnimation(slideRightIn);
            }
            // 切换到左边的界面，从左边进来
            else if (index < mCurrentTabID) {
                getCurrentView().startAnimation(slideLeftIn);
            }
        }
    }
}

package com.ctmytesttabanimation;

import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.TabHost.OnTabChangeListener;

public class MainActivity extends TabActivity {

    private AnimationTabHost tabHost;
    RadioGroup group;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_tab);
        initView();
        initTab();
        tabListener();
    }
    
    private void initView(){
        group = (RadioGroup) findViewById(R.id.mypublic_rodio);
    }
    
    private void initTab(){
        tabHost = (AnimationTabHost)getTabHost();
        tabHost.addTab(tabHost.newTabSpec("notice").setIndicator("notice")
                .setContent(new Intent(this,AnnouncementActivity.class)));
        tabHost.addTab(tabHost.newTabSpec("document").setIndicator("document")
                .setContent(new Intent(this,RulesActivity.class)));
        
        tabHost.setOpenAnimation(true);
    }
    
    private void tabListener(){
        tabHost.setOnTabChangedListener(new OnTabChangeListener() {
            
            @Override
            public void onTabChanged(String tabId) {
                // TODO Auto-generated method stub
                
            }
        });
        
        group.setOnCheckedChangeListener(new OnCheckedChangeListener() {
            
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                // TODO Auto-generated method stub
                switch (checkedId) {
                case R.id.radio_button0:

                    tabHost.setCurrentTabByTag("notice");
                    break;
                case R.id.radio_button1:
                    tabHost.setCurrentTabByTag("document");
                    break;

                default:
                    break;
                }
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}

<?xml version="1.0" encoding="utf-8"?>
<!-- slide_left_in -->
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:duration="800"
        android:fromXDelta="-100%p"
        android:toXDelta="0" />

    <alpha
        android:duration="800"
        android:fromAlpha="1.0"
        android:toAlpha="1.0" />

</set>

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
    <!-- slide_left_out -->
    <translate
        android:duration="800"
        android:fromXDelta="0"
        android:toXDelta="-100%p" />

    <alpha
        android:duration="800"
        android:fromAlpha="1.0"
        android:toAlpha="1.0" />

</set>

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:shareInterpolator="true" >
<!-- slide_right_in -->
    <translate
        android:duration="800"
        android:fromXDelta="100%p"
        android:toXDelta="0" />

    <alpha
        android:duration="800"
        android:fromAlpha="1.0"
        android:toAlpha="1.0" />

</set>

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- slide_right_out -->
    <translate
        android:duration="800"
        android:fromXDelta="0"
        android:toXDelta="100%p" />

    <alpha
        android:duration="800"
        android:fromAlpha="1.0"
        android:toAlpha="1.0" />

</set>