ViewPager用法
生活随笔
收集整理的這篇文章主要介紹了
ViewPager用法
小編覺得挺不錯的,現在分享給大家,幫大家做個參考.
第一圖:
? ? ? ??
頁面中填充內容是隨機關鍵詞飛入和飛出動畫效果,隨后會更新,如今請先無視吧
---2015-02-27---
兩年后最終更新了,網上都能搜到的,哎 無奈太懶http://blog.csdn.net/onlyonecoder/article/details/43965695
-----------
首先是 導入jar包 ? 下載地址:?android-support-v4.jar
布局文件中加入viewPager布局
<android.support.v4.view.ViewPagerandroid:id="@+id/search_viewpager"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center" ></android.support.v4.view.ViewPager>然后就是Activity了,主要寫了左右滑動切換頁面,另一個小圖片隨頁面切換 位移的動畫效果
public class SearchAllcityActivity extends Activity {private KeywordsFlow keywordsFlow;private ViewPager viewPager;private ImageView imageView;private List<View> lists = new ArrayList<View>();private ViewPagerAdapter adapter;private Bitmap cursor;private int offSet;private int currentItem;private Matrix matrix = new Matrix();private int bmWidth;private Animation animation;private Button shuaxin_sq, shuaxin_fl;public void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.search_allcity);// 隨頁面滑動圖片imageView = (ImageView) findViewById(R.id.viewpaget_img);// 熱門商圈和熱門分類 頁面加入到viewPager集合lists.add(getLayoutInflater().inflate(R.layout.search_hot_shangqu, null));lists.add(getLayoutInflater().inflate(R.layout.search_hot_fenlei, null));// 初始化滑動圖片位置initeCursor();adapter = new ViewPagerAdapter(lists);viewPager = (ViewPager) findViewById(R.id.search_viewpager);viewPager.setAdapter(adapter);// ViewPager滑動監聽器viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {@Overridepublic void onPageSelected(int arg0) {// TODO Auto-generated method stub// 當滑動時。頂部的imageView是通過animation緩慢的滑動switch (arg0) {case 0:if (currentItem == 1) {animation = new TranslateAnimation(offSet * 2 + bmWidth, 0, 0,0);} else if (currentItem == 2) {animation = new TranslateAnimation(offSet * 4 + 2 * bmWidth, 0,0, 0);}break;case 1:if (currentItem == 0) {animation = new TranslateAnimation(0, offSet * 2 + bmWidth, 0,0);} else if (currentItem == 2) {animation = new TranslateAnimation(4 * offSet + 2 * bmWidth,offSet * 2 + bmWidth, 0, 0);}break;}currentItem = arg0;animation.setDuration(500);animation.setFillAfter(true);imageView.startAnimation(animation);}@Overridepublic void onPageScrolled(int arg0, float arg1, int arg2) {// TODO Auto-generated method stub}@Overridepublic void onPageScrollStateChanged(int arg0) {// TODO Auto-generated method stub}});}/*** 計算滑動的圖片的位置*/private void initeCursor() {cursor = BitmapFactory.decodeResource(getResources(),R.drawable.viewpager_img);bmWidth = cursor.getWidth();DisplayMetrics dm;dm = getResources().getDisplayMetrics();offSet = (dm.widthPixels - 2 * bmWidth) / 4;matrix.setTranslate(offSet, 0);imageView.setImageMatrix(matrix); // 須要iamgeView的scaleType為matrixcurrentItem = 0;}}最后,不能忘了ViewPager的Adapter
總結
以上是生活随笔為你收集整理的ViewPager用法的全部內容,希望文章能夠幫你解決所遇到的問題。
- 上一篇: 几种开源SIP协议栈对比OPAL,VOC
- 下一篇: 【Android】多线程下载加断点续传