一.ViewPager页面滑动切换实现：
借鉴了别人的源码，还是比较容易实现的，而且这种效果还是经常使用的，特此记录一下：
效果图：
主界面：
public class MainActivity extends Activity { private ViewPager mPager;// 页卡内容 private List<View> listViews; // Tab页面列表 private ImageView cursor;// 动画图片 private TextView t1, t2, t3;// 页卡头标 private int offset = 0;// 动画图片偏移量 private int currIndex = 0;// 当前页卡编号 private int bmpW;// 动画图片宽度 @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_tab_main); InitImageView(); InitTextView(); InitViewPager(); } // 初始选项 private void InitTextView() { t1 = (TextView) findViewById(R.id.text1); t2 = (TextView) findViewById(R.id.text2); t3 = (TextView) findViewById(R.id.text3); t1.setOnClickListener(new MyOnClickListener(0)); t2.setOnClickListener(new MyOnClickListener(1)); t3.setOnClickListener(new MyOnClickListener(2)); } // 初始化ViewPager private void InitViewPager() { mPager = (ViewPager) findViewById(R.id.vPager); listViews = new ArrayList<View>(); LayoutInflater mInflater = getLayoutInflater(); listViews.add(mInflater .inflate(R.layout.activity_tab_one_pager, null)); listViews.add(mInflater .inflate(R.layout.activity_tab_two_pager, null)); listViews.add(mInflater .inflate(R.layout.activity_tab_three_pager, null)); mPager.setAdapter(new MyViewPagerAdapter(listViews, this)); //默认选中第一个页面 mPager.setCurrentItem(0); mPager.setOnPageChangeListener(new MyOnPageChangeListener()); } // 初始化动画 private void InitImageView() { cursor = (ImageView) findViewById(R.id.cursor); bmpW = BitmapFactory.decodeResource(getResources(), R.drawable.icon_tab_page_bg).getWidth();// 获取图片宽度 DisplayMetrics dm = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(dm); int screenW = dm.widthPixels;// 获取分辨率宽度 offset = (screenW / 3 - bmpW) / 2;// 计算偏移量 Matrix matrix = new Matrix(); matrix.postTranslate(offset, 0); cursor.setImageMatrix(matrix);// 设置动画初始位置 } // 页卡监听 public class MyOnClickListener implements View.OnClickListener { private int index = 0; public MyOnClickListener(int i) { index = i; } public void onClick(View v) { mPager.setCurrentItem(index); } }; // 滑动监听 public class MyOnPageChangeListener implements OnPageChangeListener { int one = offset * 2 + bmpW;// 页卡1 -> 页卡2 偏移量 int two = one * 2;// 页卡1 -> 页卡3 偏移量 //arg0表示页数 public void onPageSelected(int arg0) { // TranslateAnimation位移动画 Animation animation = null; //表示从第一个页卡跳转到当前页卡 switch (arg0) { case 0: if (currIndex == 1) { animation = new TranslateAnimation(one, 0, 0, 0); } else if (currIndex == 2) { animation = new TranslateAnimation(two, 0, 0, 0); } break; case 1: if (currIndex == 0) { animation = new TranslateAnimation(offset, one, 0, 0); } else if (currIndex == 2) { animation = new TranslateAnimation(two, one, 0, 0); } break; case 2: if (currIndex == 0) { animation = new TranslateAnimation(offset, two, 0, 0); } else if (currIndex == 1) { animation = new TranslateAnimation(one, two, 0, 0); } break; } currIndex = arg0; animation.setFillAfter(true);// true:表示图片停在动画结束位置 animation.setDuration(300); cursor.startAnimation(animation); } public void onPageScrolled(int arg0, float arg1, int arg2) { } public void onPageScrollStateChanged(int arg0) { } }}viewPager适配器:
public class MyViewPagerAdapter extends PagerAdapter { private List<View> mListViews; private Context context; public MyViewPagerAdapter(List<View> mListViews, Context context) { this.mListViews = mListViews; this.context = context; } @Override public void destroyItem(View arg0, int arg1, Object arg2) { ((ViewPager) arg0).removeView(mListViews.get(arg1)); } @Override public void finishUpdate(View arg0) { } @Override public int getCount() { return mListViews.size(); } @Override public Object instantiateItem(View arg0, int arg1) { if (arg1 < 3) { ((ViewPager) arg0).addView(mListViews.get(arg1 ), 0); } // 页卡内点击事件 if (arg1 == 0) { Button btn = (Button) arg0.findViewById(R.id.btn); btn.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { showDialog("1"); } }); } if (arg1 == 1) { Button btn = (Button) arg0.findViewById(R.id.btn); btn.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { showDialog("2"); } }); } if (arg1 == 2) { Button btn = (Button) arg0.findViewById(R.id.btn); btn.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { showDialog("3"); } }); } return mListViews.get(arg1); } public void showDialog(String arg) { new AlertDialog.Builder(context).setTitle("说明") .setMessage("这是第"+arg+"个页面") .setNegativeButton("确定", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { } }).show(); } @Override public boolean isViewFromObject(View arg0, Object arg1) { return arg0 == (arg1); } @Override public void restoreState(Parcelable arg0, ClassLoader arg1) { } @Override public Parcelable saveState() { return null; } @Override public void startUpdate(View arg0) { }}xml:
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#FF969696" android:orientation="vertical" > <LinearLayout android:id="@+id/linearLayout1" android:layout_width="fill_parent" android:layout_height="45dp" android:background="#FFDFD7D7" > <TextView android:id="@+id/text1" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="\n页卡1" android:textColor="#000000" /> <TextView android:id="@+id/text2" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="\n页卡2" android:textColor="#000000" /> <TextView android:id="@+id/text3" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="\n页卡3" android:textColor="#000000" /> </LinearLayout> <ImageView android:id="@+id/cursor" android:layout_width="fill_parent" android:layout_height="wrap_content" android:scaleType="matrix" android:src="@drawable/icon_tab_page_bg" /> <android.support.v4.view.ViewPager android:id="@+id/vPager" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_gravity="center" android:layout_weight="1" android:background="#FFDFD7D7" android:flipInterval="30" android:persistentDrawingCache="animation" /></LinearLayout>
三个页面:
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#FFDFD7D7" android:orientation="vertical" > <Button android:id="@+id/btn" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_gravity="center" android:gravity="center" android:text="点击我" /></LinearLayout>
ok完成了。