Android模拟腾讯新闻客户端功能实现

package iwehave.erp.web; import iwehave.erp.helper.PageAdapterHelper; import java.util.ArrayList; import java.util.HashMap; import java.util.Vector; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.support.v4.view.ViewPager; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.view.LayoutInflater; import android.view.View; import android.view.Window; import android.view.View.OnClickListener; import android.view.ViewGroup.LayoutParams; import android.view.animation.AnimationSet; import android.view.animation.TranslateAnimation; import android.widget.AdapterView; import android.widget.Button; import android.widget.HorizontalScrollView; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.SimpleAdapter; import android.widget.AdapterView.OnItemClickListener; import android.widget.RadioGroup.OnCheckedChangeListener; /** * HorizontalScrollView和ViewPager联动效果 上面为HorizontalScrollView,下面为ViewPager */ public class MainActivity extends Activity implements OnCheckedChangeListener { private RadioGroup mRadioGroup; private RadioButton rbFocusNews; private RadioButton rbEntertainment; private RadioButton rbMilitaryScience; private RadioButton rbSports; private RadioButton rbTechnology; private ImageView mImageView; private float mCurrentCheckedRadioLeft;// 当前被选中的RadioButton距离左侧的距离 private HorizontalScrollView mHorizontalScrollView;// 上面的水平滚动控件 private ViewPager mViewPager; // 下方的可横向拖动的控件 private Vector<View> mViews;// 用来存放下方滚动的layout(layout_1,layout_2,layout_3) ListView list; SimpleAdapter listAdapter; ArrayList<HashMap<String, Object>> listItems; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.main); initNewsWin(); initBottom(); } // 新闻部分 private void initNewsWin() { iniController(); iniListener(); iniVariable(); rbFocusNews.setChecked(true); mViewPager.setCurrentItem(1); mCurrentCheckedRadioLeft = getCurrentCheckedRadioLeft(); AdapterNews(1); } private void iniVariable() { // TODO Auto-generated method stub mViews = new Vector<View>(); mViews.add(getLayoutInflater().inflate(R.layout.news, null)); mViews.add(getLayoutInflater().inflate(R.layout.news, null)); mViews.add(getLayoutInflater().inflate(R.layout.news, null)); mViews.add(getLayoutInflater().inflate(R.layout.news, null)); mViews.add(getLayoutInflater().inflate(R.layout.news, null)); mViews.add(getLayoutInflater().inflate(R.layout.news, null)); mViewPager.setAdapter(new PageAdapterHelper(mViews));// 设置ViewPager的适配器 } /** * RadioGroup点击CheckedChanged监听 */ public void onCheckedChanged(RadioGroup group, int checkedId) { AnimationSet _AnimationSet = new AnimationSet(true); TranslateAnimation _TranslateAnimation; int dimen = 0, currentIndex = 0; switch (checkedId) { case R.id.btn_FocusNews: dimen = R.dimen.rdo1; currentIndex = 1; break; case R.id.btn_Entertainment: dimen = R.dimen.rdo2; currentIndex = 2; break; case R.id.btn_MilitaryScience: dimen = R.dimen.rdo3; currentIndex = 3; break; case R.id.btn_Sports: dimen = R.dimen.rdo4; currentIndex = 4; break; case R.id.btn_Technology: dimen = R.dimen.rdo5; currentIndex = 5; break; } _TranslateAnimation = new TranslateAnimation(mCurrentCheckedRadioLeft, getResources().getDimension(dimen), 0f, 0f); _AnimationSet.addAnimation(_TranslateAnimation); _AnimationSet.setFillBefore(false); _AnimationSet.setFillAfter(true); _AnimationSet.setDuration(100); mImageView.startAnimation(_AnimationSet);// 开始上面蓝色横条图片的动画切换 mViewPager.setCurrentItem(currentIndex);// 让下方ViewPager跟随上面的HorizontalScrollView切换 AdapterNews(currentIndex); mCurrentCheckedRadioLeft = getCurrentCheckedRadioLeft();// 更新当前蓝色横条距离左边的距离 mHorizontalScrollView.smoothScrollTo((int) mCurrentCheckedRadioLeft - (int) getResources().getDimension(R.dimen.rdo2), 0); } /** * 获得当前被选中的RadioButton距离左侧的距离 */ private float getCurrentCheckedRadioLeft() { // TODO Auto-generated method stub if (rbFocusNews.isChecked()) { return getResources().getDimension(R.dimen.rdo1); } else if (rbEntertainment.isChecked()) { return getResources().getDimension(R.dimen.rdo2); } else if (rbMilitaryScience.isChecked()) { return getResources().getDimension(R.dimen.rdo3); } else if (rbSports.isChecked()) { return getResources().getDimension(R.dimen.rdo4); } else if (rbTechnology.isChecked()) { return getResources().getDimension(R.dimen.rdo5); } return 0f; } private void iniListener() { // TODO Auto-generated method stub mRadioGroup.setOnCheckedChangeListener(this); mViewPager.setOnPageChangeListener(new MyPagerOnPageChangeListener()); } private void iniController() { // TODO Auto-generated method stub mRadioGroup = (RadioGroup) findViewById(R.id.radioGroup); rbFocusNews = (RadioButton) findViewById(R.id.btn_FocusNews); rbEntertainment = (RadioButton) findViewById(R.id.btn_Entertainment); rbMilitaryScience = (RadioButton) findViewById(R.id.btn_MilitaryScience); rbSports = (RadioButton) findViewById(R.id.btn_Sports); rbTechnology = (RadioButton) findViewById(R.id.btn_Technology); mImageView = (ImageView) findViewById(R.id.img1); mHorizontalScrollView = (HorizontalScrollView) findViewById(R.id.horizontalScrollView); mViewPager = (ViewPager) findViewById(R.id.pager); } /** * ViewPager的PageChangeListener(页面改变的监听器) */ private class MyPagerOnPageChangeListener implements OnPageChangeListener { public void onPageScrollStateChanged(int arg0) { // TODO Auto-generated method stub } public void onPageScrolled(int arg0, float arg1, int arg2) { // TODO Auto-generated method stub } /** * 滑动ViewPager的时候,让上方的HorizontalScrollView自动切换 */ public void onPageSelected(int position) { // TODO Auto-generated method stub if (position == 0 || position == 1) { rbFocusNews.performClick(); } else if (position == 2) { rbEntertainment.performClick(); } else if (position == 3) { rbMilitaryScience.performClick(); } else if (position == 4) { rbSports.performClick(); } else if (position == 5) { rbTechnology.performClick(); } } } // 填充内容 private void AdapterNews(int type) { list = (ListView) mViews.get(type).findViewById(R.id.lstNews); listItems = new ArrayList<HashMap<String, Object>>(); String title = "", content = ""; switch (type) { case 1: title = "新闻头条"; content = "新闻内容：用事实说话，聚焦新闻客户端。"; break; case 2: title = "娱乐新闻"; content = "新闻内容：看娱乐新闻，爆娱乐猛料，聚焦新闻客户端。"; break; case 3: title = "军事新闻"; content = "新闻内容：看军事新闻，保家卫国，聚焦新闻客户端。"; break; case 4: title = "体育新闻"; content = "新闻内容：聚焦体育新闻，刘翔又献丑了，聚焦新闻客户端。"; break; case 5: title = "科技新闻"; content = "新闻内容：聚焦科技大事件，乔布斯复活，聚焦新闻客户端。新闻内容：聚焦科技大事件，乔布斯复活，聚焦新闻客户端。新闻内容：聚焦科技大事件，乔布斯复活，聚焦新闻客户端。"; break; } for (int i = 0; i < 15; i++) { HashMap<String, Object> map = new HashMap<String, Object>(); map.put("Image", R.drawable.ic_launcher); map.put("Title", title + i); map.put("Content", content + i); map.put("Comment", (1000 + i) + "评"); listItems.add(map); } listAdapter = new SimpleAdapter(this, listItems, R.layout.newsitem, new String[] { "Image", "Title", "Content", "Comment" }, new int[] { R.id.n_image, R.id.n_title, R.id.n_content, R.id.n_comment }); if (li