me.xiaopan.android.examples.activity.custom.SlideTabHostActivity.java Source code

Introduction

Here is the source code for me.xiaopan.android.examples.activity.custom.SlideTabHostActivity.java

Source

/*
 * Copyright 2013 Peng fei Pan
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package me.xiaopan.android.examples.activity.custom;

import java.util.ArrayList;
import java.util.List;

import me.xiaopan.android.examples.MyBaseActivity;
import me.xiaopan.android.examples.R;
import me.xiaopan.android.examples.adapter.StringAdapter;
import me.xiaopan.easy.android.widget.ViewPagerAdapter;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.TranslateAnimation;
import android.widget.ListView;
import android.widget.TextView;

/**
 * ?
 * @author xiaopan
 */
public class SlideTabHostActivity extends MyBaseActivity {
    private ViewPager viewPager;
    private List<View> tabContentList;
    private List<Tab> tabList;
    private TextView slideBlock;
    private int lastTabIndex = 0;

    @Override
    public void onInitLayout(Bundle savedInstanceState) {
        setContentView(R.layout.activity_slide_tabhost);
        viewPager = (ViewPager) findViewById(R.id.pager_slideTab);
        tabList = new ArrayList<Tab>();
        tabList.add(new Tab(0, (TextView) findViewById(R.id.text_slideTab_title0),
                (TextView) findViewById(R.id.text_slideTab_slideBlock0)));
        tabList.add(new Tab(1, (TextView) findViewById(R.id.text_slideTab_title1),
                (TextView) findViewById(R.id.text_slideTab_slideBlock1)));
        tabList.add(new Tab(2, (TextView) findViewById(R.id.text_slideTab_title2),
                (TextView) findViewById(R.id.text_slideTab_slideBlock2)));
        slideBlock = tabList.get(0).getSlideBlock();
    }

    @Override
    public void onInitListener(Bundle savedInstanceState) {
        for (final Tab tab : tabList) {
            tab.getTitle().setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    viewPager.setCurrentItem(Integer.valueOf(String.valueOf(tab.getIndex())));
                }
            });
        }

        viewPager.setOnPageChangeListener(new OnPageChangeListener() {
            @Override
            public void onPageSelected(int arg0) {
                //?tab?tab
                Tab lastTab = tabList.get(lastTabIndex);
                Tab currentTab = tabList.get(arg0);

                //??tab?tab
                lastTab.getTitle().setSelected(false);
                currentTab.getTitle().setSelected(true);

                //?
                TranslateAnimation translateAnimation = new TranslateAnimation(lastTab.getSlideBlock().getLeft(),
                        currentTab.getSlideBlock().getLeft(), 0, 0);
                translateAnimation.setDuration(200);
                translateAnimation.setFillAfter(true);
                slideBlock.startAnimation(translateAnimation);

                //tab
                lastTabIndex = arg0;
            }

            @Override
            public void onPageScrolled(int arg0, float arg1, int arg2) {

            }

            @Override
            public void onPageScrollStateChanged(int arg0) {

            }
        });
    }

    @Override
    public void onInitData(Bundle savedInstanceState) {
        tabContentList = new ArrayList<View>();
        tabContentList.add(createTabContent(0));
        tabContentList.add(createTabContent(1));
        tabContentList.add(createTabContent(2));
        viewPager.setAdapter(new ViewPagerAdapter(tabContentList));
        tabList.get(lastTabIndex).getTitle().setSelected(true);
    }

    private View createTabContent(int index) {
        index++;
        List<String> contents = new ArrayList<String>(20);
        for (int w = 0; w < 20; w++) {
            contents.add("? " + index + "  " + w + " ??");
        }
        ListView pullListView = (ListView) getViewByLayout(R.layout.list);
        pullListView.setAdapter(new StringAdapter(getBaseContext(), contents));
        return pullListView;
    }

    private class Tab {
        private int index;
        private TextView title;
        private TextView slideBlock;

        public Tab(int index, TextView title, TextView slideBlock) {
            setIndex(index);
            setTitle(title);
            setSlideBlock(slideBlock);
        }

        public int getIndex() {
            return index;
        }

        public void setIndex(int index) {
            this.index = index;
        }

        public TextView getTitle() {
            return title;
        }

        public void setTitle(TextView title) {
            this.title = title;
        }

        public TextView getSlideBlock() {
            return slideBlock;
        }

        public void setSlideBlock(TextView slideBlock) {
            this.slideBlock = slideBlock;
        }
    }
}