Android 高仿QQ 界面滑动效果

点击或者滑动切换画面，用ViewPager实现，

首先是布局文件：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" ><LinearLayout    android:layout_width="match_parent"    android:layout_height="62dip"    android:orientation="vertical"     android:background="@drawable/top_theme_blue">    <LinearLayout    android:layout_width="match_parent"    android:layout_height="36dip"    android:orientation="horizontal"     android:gravity="center_vertical">        <ImageView            android:id="@+id/main_avatar"            android:layout_width="32dip"            android:layout_height="32dip"            android:src="@drawable/avatar" />    <TextView         android:id="@+id/main_nick"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:textColor="#FFFFFF"            android:text="Vestigge"/>    <ImageView         android:layout_width="14dip"            android:layout_height="14dip"            android:src="@drawable/status_online"/></LinearLayout>    <LinearLayout    android:layout_width="match_parent"    android:layout_height="26dip"    android:orientation="horizontal"     android:gravity="bottom">    <RadioGroup           android:id="@+id/main_radiogroup"        android:orientation="horizontal"        android:paddingTop="1dp"         android:layout_width="fill_parent"           android:layout_height="wrap_content">              <RadioButton                   android:id="@+id/main_radio_recent"                   android:checked="true"                   android:text="动态"                 android:textColor="@color/tab_text"                android:drawableBottom="@drawable/top_tab_selector"                style="@style/radio_style"/>                  <RadioButton                   android:id="@+id/main_radio_buddy"                 android:text="群组"                android:textColor="@color/tab_text"                 android:drawableBottom="@drawable/top_tab_selector"                style="@style/radio_style"/>              <RadioButton                   android:id="@+id/main_radio_group"                   android:text="好友"                 android:textColor="@color/tab_text"                android:drawableBottom="@drawable/top_tab_selector"                style="@style/radio_style"                android:checked="true"/>            <RadioButton                   android:id="@+id/main_radio_trends"                   android:text="会话"                 android:textColor="@color/tab_text"                android:drawableBottom="@drawable/top_tab_selector"                style="@style/radio_style"/>        </RadioGroup>   </LinearLayout></LinearLayout><android.support.v4.view.ViewPager    android:id="@+id/main_viewpager"    android:layout_width="match_parent"    android:layout_height="match_parent" ></android.support.v4.view.ViewPager>   </LinearLayout>

代码：

public class MainActivity extends ActivityGroup {private static final String TRENDS="动态";private static final String GROUP="群组";private static final String BUDDY="好友";private static final String RECENT="会话";private ArrayList<View> pageViews;private RadioGroup radioGroup;private ViewPager viewPager;    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_NO_TITLE);        setContentView(R.layout.activity_main);                initView();        viewPager=(ViewPager) findViewById(R.id.main_viewpager);        viewPager.setAdapter(new PagerAdapter(){public int getCount() {return pageViews.size();}public boolean isViewFromObject(View view, Object objcet) {return view==objcet;}//这里会对需要进行水平切换的页面进行了加载和初始化 android:tileMode="repeat"public Object instantiateItem(View view, int id) {((ViewPager)view).addView(pageViews.get(id));return pageViews.get(id);}public void destroyItem(View view, int id, Object arg2) {                  ((ViewPager) view).removeView(pageViews.get(id));              }        });        viewPager.setCurrentItem(2);//默认显示的是好友页面        radioGroup = (RadioGroup) findViewById(R.id.main_radiogroup);radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {public void onCheckedChanged(RadioGroup group, int checkedId) {setClick(checkedId);}});    }        void initView() {    pageViews=new ArrayList<View>();    View view1 = getLocalActivityManager().startActivity(TRENDS,    new Intent(this, TrendsActivity.class)).getDecorView();    View view2 = getLocalActivityManager().startActivity(GROUP,    new Intent(this, GroupActivity.class)).getDecorView();    View view3 = getLocalActivityManager().startActivity(BUDDY,    new Intent(this, BuddyActivity.class)).getDecorView();    View view4 = getLocalActivityManager().startActivity(RECENT,    new Intent(this, RecentActivity.class)).getDecorView();    pageViews.add(0,view1);    pageViews.add(1,view2);    pageViews.add(2,view3);    pageViews.add(3,view4);    }public void setClick(int id) {switch(id){case R.id.main_radio_trends:viewPager.setCurrentItem(0);break;case R.id.main_radio_group:viewPager.setCurrentItem(1);break;case R.id.main_radio_buddy:viewPager.setCurrentItem(2);break;case R.id.main_radio_recent:viewPager.setCurrentItem(3);break;}}    @Override    public boolean onCreateOptionsMenu(Menu menu) {        getMenuInflater().inflate(R.menu.activity_main, menu);        return true;    }}